Oil and Natural Gas Corporation Limited (A Govt. of Enterprise)

Notice Inviting “Expression of Interest” (EOI) for Acquisition, Processing and Interpretation (API) of 2D Seismic Data in un-appraised onland areas in 22 Sedimentary Basins of India.

ONGC has been entrusted by MoP&NG, Govt. of India to carry out Acquisition, Processing and Interpretation (API) of approximately 40835 LKM 2D Seismic data in un-appraised onland areas falling in 22 sedimentary basins of India. The basic objective of the survey is to map and study Tertiary/ Mesozoic/Proterozoic sediments for prospectivity and assessment of their hydrocarbons potential. ONGC intends to outsource the 2D seismic A & PI jobs to reputed service providers so that it can be acquired, processed and interpreted in a scheduled time bound manner in 4 to 5 years as shown in table 1. Acquisition is to start tentatively from October 2015. ONGC seeks Expression of Interest (‘EOI’) under International Competitive Bidding Process (“ICB”) from reputed and experienced Indian as well as International bidders for API of 2D seismic data in these hitherto un-appraised onland areas in 22 sedimentary basins: A. Acquisition B. Processing and Interpretation Interested bidders may submit their response for Acquisition (A) or Processing and Interpretation (PI) or both ie, A&PI. Bidder may participate in one or more sectors for data acquisition depending upon their capability. As regards the Processing and Interpretation (PI) the areas may be clubbed in 2-3 groups depending upon geological complexity and type of processing required.

It may please be noted that this is just a business enquiry and it does not constitute any offer for the intended work. However, this EOI should not be construed as right to have tender document or to be shortlisted for the tender. Based on response to this EOI, ONGC intends to firm up the technical specifications, refine the plan of API and shortlist bidders for global tender to be invited for the purpose. However, ONGC reserves the right to accept, reject, or modify the requirements as specified in the EOI while formulating its final specifications and scope of work for the said work. I. Project Information Onland 2D seismic survey, regional in nature, is planned in 25 areas situated in 18 States / Union Territory of India. The areas are spread across onland part of 22 sedimentary basins of India viz Cambay, Kutch, , , Pranhita-Godavari, Krishna-Godavari, Cuddapah, Bastar, Cauvery, Vindhyan, Narmada, South Rewa, Satpura-Damodar and Chattisgarh, Bengal, -NEC, Ganga, Deccan Synclise, Bhima-Kaladgi, Himalayan Foreland, Spiti-Zanskar, Karewa and Andman-Nicobar basins. The operational areas can be broadly divided in four types. Out of the total areas, alluvial covered plain land are about 50 %, hilly terrain about 40 %, hilly terrain in Himalayan region about 5 % and desert area in Rajasthan about 5%. Shot hole depth in these areas is expected as 25-35 mts. Neither any well data nor any seismic reflection data is available in these areas. However, Geological, Gravity, Magnetic, Magneto-Telluric, Deep Seismic Sounding (DSS) and Refraction survey have been done in few areas. Hence, subsurface information for proposed survey areas may be ascertained from these data or carried forward from the adjoining basins. Google images showing location of proposed lines in these areas is enclosed in fig.1 to fig. 11. Information related to general geology, objective of the survey, polygon coordinates of area, no of lines, elevation pattern along lines, logistics, other relevant inputs and tentative proposed parameters for 2D survey pertaining to each area are briefly described in para II. The fair weather window for execution of seismic work is September/October to May/ June for most of the areas except Cauvery and Himalayan region. Expected shot hole depth is 25-35 m, except Rajasthan, but may vary from area to area hence need to be finalized after experimentation. Few long offset (16-18 kms) 2D lines are also planned in some areas for delineation of sub-trappean basement configuration. Feasibility of Surface geochemical survey is also being considered along 2D lines at an interval of 2 to 5 km. preferably at or near uphole locations. Seismic lines are passing through plains, cultivated lands, jungles, reserve forests, national parks, sanctuaries and restricted/sensitive areas etc. The bidders are strongly advised to visit the areas of their interest and collect relevant information before responding to EOI. Bidders are required to obtain appropriate prior permissions from concerned authorities before start of work. For smooth and peaceful operation, bidders are required to take utmost care of statutory policy guidelines on HSE, public relations, filling of shot holes after blasting, storage and handling of explosive & payment of compensation towards damages, if any, etc. Bidders are further required to deploy alternate source of energy wherever the explosive source is not feasible. The bidders are required to propose most suitable industry standard acquisition parameters for best imaging of hitherto un-appraised subsurface areas. After analyzing the feedback from EOI, the final acquisition parameters in scope of work shall be firmed up while tendering. Considering their proximity, fair weather window, logistics, similarity of source & shot hole drilling, optimal utilization of field crew and to compress the API turnaround time, the proposed areas have been clubbed into 11 groups termed as sectors. For operational reasons, Vindhyan area is divided into two parts A & B and clubbed separately into two sectors 5 & 9. Financial Year (April-March) wise estimated data API as per plan is given in Fig 1A & 1B and summarized as below: Financial Year FY2015-16 FY 2016-17 FY2017-18 FY 2018-19 FY 2019-20 Acquisition(LKM) 5918 16990 12430 5497 - Processing (LKM) - 12513 17470 9712 1140 Interpretation (LKM) - 1510 17240 17385 4700

A. Acquisition: To meet above plan, the requirement of seismic crew in 1st to 4th field season is expected as 15, 18, 11 and 6 respectively. Sector wise schedule of completion, quantum and required no. of seismic crew for data acquisition are given as below in table1: Table 1 Sl. Sector Area/Basin Schedule LKM LKM Crews States / UT 1 1a Cambay Oct’15-Mar’17 1240

2 1 1b Kutch Oct’15-Mar’17 1760 5280 3 Gujarat Oct’15- 3 1c Saurashtra 2280 Gujarat June’17 Oct’15- 4 2 2 Rajasthan 2260 2260 1 Rajasthan June’17 Pranhita- 5 3a Oct’15-Mar’16 350 Telangana Godavari 6 3b Krishna-Godavari Jan’16-Dec’16 600 Andhra Pradesh 3 2040 2 Oct’16- 7 3c Cuddapah 850 Andhra Pradesh June’17 8 3d Bastar Oct’17-Mar’18 240 Chattisgarh , Odisha 9 4 4 Cauvery Jan’16-Sep’17 1900 1900 1 Tamil Nadu 10 5 5a Vindhyan A Oct’15-Dec’17 4953 5865 2 , Rajasthan Jan’18- 11 5b Narmada 667 Madhya Pradesh , Gujarat June’18 12 5c Satpura Jan’18-Mar’18 245 Madhya Pradesh Oct’15- 13 6a Bengal 860 West Bengal June’16 6 3390 1 Oct’16- 14 6b Mahanadi -NEC 2530 Odisha June’18 Oct’15- 15 7 7 Ganga 3130 3130 2 Uttar Pradesh, Bihar June’17 , Karnataka, 16 8a Deccan Syncline Oct’15-Mar’19 10810 Madhya Pradesh, Telangana, 17 8 8b Bhima Jan’19-Mar’19 280 11400 3 Karnataka ,Telangana 18 8c Kaladgi Jan’19-Mar’19 310 Karnataka Uttar Pradesh, Bihar , 19 9a Vindhyan B Oct’16-Mar’17 300 Jharkhand South Rewa - Jan’17- Madhya Pradesh, Jharkhand, 20 9 9b 1460 3160 2 Damodar June’18 Chattisgarh, Odisha Oct’16- 21 9c Chattisgarh 1400 Chattisgarh,Odisha June’18 Himalayan Oct’16- Himachal Pradesh, Jammu 22 10a 1300 Foreland June’18 and Kashmir,Uttarakhand, 23 10 10b Karewa July’18-Dec’18 300 2100 2 Jammu and Kashmir Himachal Pradesh, Jammu 24 10c Spiti- Zanskar Apr’18-Mar’19 500 and Kashmir 25 11 11 Andman-Nicobar Apr’18-Dec’18 310 310 1 Andman and Nicobar Islands Total 40835

B. Processing and Interpretation : Data acquired in different areas as above is to be processed as per schedule given as below in table 2 . Table 2 Sector Processing Interpretation Sl. Sector Area/Basin LKM LKM Schedule Schedule 1 1a Cambay 1240 Apr’16-Sep’17 Jul’17-Mar’18 2 1 1b Kutch 1760 5280 Apr’16-Sep’17 Jul’17-Mar’18 3 1c Saurashtra 2280 Apr’16-Dec’17 Oct’17-Jun’18 4 2 2 Rajasthan 2260 2260 Apr’16-Dec’17 Oct’17-Jun’18 5 3a Pranhita- Godavari 350 Apr’16-Jun’16 Jul’16-Sep’16 6 3b Krishna-Godavari 600 Jul’16-Mar’17 Jan’17-Sep’17 3 2040 7 3c Cuddapah 850 Apr’17-Dec’17 Oct’17-Mar’18 8 3d Bastar 240 Apr’18-Jun’18 Jul’18-Sep’18 9 4 4 Cauvery 1900 1900 Jul’17-Mar’18 Oct’17-Mar’18 10 5a Vindhyan A 4953 Oct’15-Jun’18 Oct’17-Sep’18 11 5 5b Narmada 667 5865 Jul’18-Sep’18 Oct’18-Dec’18 12 5c Satpura 245 Apr’18-Jun’18 Jul’18-Sep’18 13 6a Bengal 860 Oct’15-Dec’16 Oct’16-Mar’17 6 3390 14 6b Mahanadi -NEC 2530 Apr’17-Dec’18 Jul’18-Mar’19 15 7 7 Ganga 3130 3130 Oct’15-Dec’17 Apr’17-Mar’18 16 8a Deccan Syncline 10810 Oct’15-Jun’19 Apr’17-Sep’19 17 8 8b Bhima 280 11400 Apr’19-Jun’19 Jul’19-Sep’19 18 8c Kaladgi 310 Apr’19-Jun’19 Jul’19-Sep’19 19 9a Vindhyan B 300 Apr’17-Jun’17 Jul’17-Sep’17 20 9 9b South Rewa -Damodar 1460 3160 Apr’17-Sep’18 Apr’18-Dec’18 21 9c Chattisgarh 1400 Apr’17-Sep’18 Apr’18-Dec’18 22 10a Himalayan Foreland 1300 Apr’17-Dec’18 Sep’18-Mar’19 23 10 10b Karewa 300 2100 Oct’18-Mar’19 Apr’19-Jun’19 24 10c Spiti-Zanskar 500 Oct’18-Jun’19 Apr’19-Sep19 25 11 11 Andman-Nicobar 310 310 Oct’18-Jun’19 Apr’19-Jun19 Total 40835

Data is to be processed by deploying experienced and professional experts using state of the art processing hardware/software and adopting most optimal processing flows and reliable Velocity analysis, Pre-stack Time and Depth Migration (Pre-STM and Pre-SDM), Inversion, AVO techniques suitable for each areas to obtain geologically conformable subsurface images amenable for meaningful interpretation. There is likelihood of use of different energy sources and receivers. The data processed with floating datum and refraction based statics would be preferable or desirable in areas with varying elevation. Similarly, the data so processed is to be interpreted by experienced and professional experts using state of the art interpretation softwares and industry standard techniques including Attribute analysis to meet the geological objectives in un-appraised onland areas as per time schedule. In order to have total integration, seamless involvement and quality assurance in API, it is desirable that concerned processing team should depute their person(s) during data acquisition and the interpretation team should depute their person(s) during data processing. Further, based on geological understanding of the areas Processing and Interpretation teams may suggest their requirements, standard quality checks/norms for data acquisition and processing respectively. II. Sector wise information on proposed 2D survey:

1. Sector 1 (Cambay, Kutch, Saurashtra)

In general, the topography comprises a vast alluvial plain with a hilly terrain and the fair weather window for data acquisition is from October to June for this sector.

1a. Cambay Basin

Cambay basin is a NNW-SSE trending narrow, elongated rift graben which extends from Surat in south to Sanchor in the north. It is a proven petroleum province from tertiary sediments. The proposed lines lie on both basin shoulders beyond eastern/ western margins.The main objective of the survey is to explore Mesozoic sediments which lie below the Deccan trap of unknown & varying thickness (expected up to 1200 meters). The zone of Interest is from 0.5 to 4 Kms. 1240 LKM 2D data is planned to be acquired along 41 lines with grid size of about 20km x 20km.

Location : Polygon coordinates Polygon coordinates Logistics ID ID Lat (N) Long (E) Lat (N) Long (E) Main Towns/Cities : Talod, Lasundra, Thasara, Dabhoi, Jarod and Waghodiya Rivers : Sabarmati, Mahisagar, Tapti A 22°23'35'' 71°57'51'' D 21°13'55'' 74°14'24'' Canal : Narmada Canal Sanctuary : Vansda, Balram ambaji, B 22°06'30'' 72°46'17'' E 24°50'08'' 72°49'57'' Jessore sloth bear, Kutch desert National Park : Vansda C 20°34'15'' 72°52'29'' F 24°42'57'' 70°46'22'' Range of Elevation : 15 – 225 m

Proposed data acquisition parameters:

No. of Line Spread Group/ Shot Active Energy Fold Type of drilling lines length Interval channels Source 7 to 128 split Manual/Mechanical / 41 10 /40 m 125 450+450 Explosive Km spread Pneumatic/Weight drop

1b. Kutch Basin

Kutch basin forms the north-western part of the western continental margin of India and is situated at NW of Gujarat state. The basin is expected to be filled up with approx. 1550 to 2500m Mesozoic and 550m Tertiary sediments in onland region and up to 4500m Tertiary sediments in offshore region (Well GKH-1). Some of the lines pass through Rann of Kutch and extend nearer to Indo- Pak border. The main objective of the survey is to map and study Tertiary and Mesozoic/sub- trappean sediments and to assess hydrocarbon prospectivity of the basin. For delineation of subtrappean basement configuration, 2D Long offset (16 -18 kms) data along few lines (2 to 4) may be acquired. The zone of Interest is from 3 to 6 Kms. About 1760 LKM 2D data acquisition is planned along 14 lines with grid size of about 40km x 40km.

Location: Polygon coordinates Logistics ID Lat (N) Long (E)

A 23°42'25'' 68°31'35'' Major Towns/Cities : Gandhidham, Modasar, Adesar , Dholavira, Mandavi, Radhanpur. B 22°46'08'' 69°39'20'' Rivers : Nagamati, Bhukhi and Khari rivers. C 23°45'16'' 71°47'10'' Water bodies: Nara dam, Narayan Sarovar dam. D 23°51'22'' 71°47'08'' Canal network : Branch of main Narmada canal. Runn of Kutch in northern part. E 24°24'27'' 71°18'59'' Sanctuary: Wild ass, Narayan Sarovar , Kutch desert F 24°20'10'' 68°53'56'' Range of Elevation : 2 – 175 m

Proposed data acquisition parameters:

No of Line Spread Group/ Shot Active Energy Fold Type of drilling lines length Interval channels Source 37 to Split Manual/Mechanical / 14 20 /60 m 150 450+450 Explosive 315 Km spread Pneumatic/Vibroseis

1c. Saurashtra basin

It is located in the northern part of western continental margin of India which trends NNW-SSE. This basin lies north of Mumbai Offshore, south of Kutch basin and west of Cambay Basin. Mesozoic, Tertiary and Deccan Trap volcanic exposures are present at some places in the area. The main objective of the survey is to map and study Tertiary and sub-basalt Mesozoic prospectivity in the onland area. The zone of Interest is from 1.5 to 6 Kms. About 2280 LKM 2D data is planned to be acquired along 11 lines with grid size of about 50km x 50km. For delineation of subtrappean basement configuration, 2D Long offset (16 - 18 Kms) data along few lines (2 to 4) is to be acquired.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 22°08'26'' 69°41'54'' Main Towns/Cities : Surendranagar, Rajkot, Jamnagar, Lalpur, B 20°51'11'' 70°22'11'' Jamkhambaliya, Bhatia, Dwarka, Porbandar, Dhoraji, Junagarh, Sasan, C 20°43'41'' 70°59'49'' Somnath, Una D 21°08'18'' 72°40'31'' Reservoirs : Nal Sarovar reservoir. E 22°29'06'' 72°27'47'' Canal network : Branch of main Narmada canal. Reserved forest : Gir forest, Junagadh hills. F 23°23'22'' 71°41'51'' Sanctuary: Gir Range of Elevation : 2 – 221 m

Proposed data acquisition parameters: No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 114 to Split Mechanical 11 20/60 m 150 450+450 Explosive 275 Km spread /Pneumatic/Vibroseis

2. Sector 2 (Rajasthan)

The area is partly arid region with sand dunes, alluvial areas dotted with few hillocks and scattered hill chains. It exhibits gentle undulating topography. The fair weather window for data acquisition is from September to May for this sector .

Rajasthan Basin

Rajasthan Basin forms the eastern flank of Indus geosyncline and comprises the sedimentary strata to the west and northwest of Aravallis up to Indo-Pak border. This pericratonic basin also forms a part of the great Thar Desert. The main objective of the survey is to map Tertiary, Paleozoic and Mesozoic plays in the Bikaner-Nagaur, Jaisalmer and Barmer-Sanchor sub-basins. The zone of Interest is from 3 to 5 Kms. About 2260 LKM 2D seismic data is planned to be acquired along 15 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 26°12'46'' 72°43'39'' Main Towns/Cities : Phalodi, Jodhpur, Bikaner, samara, Belwa, B 26°27'49'' 74°16'23'' Umednagar, Bhopalgarh, Randhesar, Pali. C 28°30'13'' 75°13'12'' Range of Elevation : 175 – 340 m D 29°28'52'' 74°19'46'' E 27°22'38'' 71°19'39''

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 35 to Split Vibroseis/ Vibroseis/Mechanical 15 20/60 m 150 450+450 307 Km spread Explosives

3. Sector 3 (Pranhita- Godavari, Krishna- Godavari, Cudappah & Bastar) In general, the topography comprises of hilly region, upland region and the deltaic plain and the fair weather window for data acquisition is from October to June for this sector.

3a. Pranhita- Godavari Basin

The Pranhita-Godavari is a part of Gondwana basin, consist a series of NNW-SSE grabens and half-grabens. Three prominent fault patterns are identified viz. (i) NNW-SSE trending syn depositional faults (ii) NW-SE faults and (iii) the NE-SW transverse faults. Some of the proposed lines are passing through forests and scrub jungles. The main objective of the survey is to map sub-basalt Paleozoic-Mesozoic, Gondwana and Proterozoic sediments. The zone of Interest is from 2 to 7 Kms. About 350 LKM 2D seismic data is planned to be acquired along 5 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 17°08'36'' 81°07'45'' Main Towns/Cities : Aswaraopeta, Bhadvachalam, Palvoncha, Yellendu, Gundala, Pasara, Vulvanur, Bhupalapally. B 17°34'38'' 81°28'28'' Rivers: Godavari, Kinnerasani, Munneru. C 18°41'43'' 80°35'14'' Dam : Kinnerasani. Forest: Laknavaram D 18°16'53'' 79°41'32'' Range of Elevation : 65 – 387 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 28 to Split 5 20/60 m 150 450+450 Explosive Manual /Mechanical 184 Km spread

3b. Krishna- Godavari Basin

Krishna Godavari Basin is a proven petroliferous basin of continental margin located on the east coast of India. Extensive deltaic plain is formed by two large East Coast Rivers viz. Krishna and Godavari and. The main objective of the survey is to map deeper Tertiary and syn-rift Mesozoic sediments. The zone of Interest is from 2 to 5 Kms. About 600 LKM data is planned to be acquired along 15 lines with grid size of about 20km x 20km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 15°55'37'' 80°24'53'' Main Towns/Cities : Rajahmundary, Kakinada, Samarlakota Tuni , B 16°52'29'' 81°47'06'' Guntur, Vijaywada. C 16°55'27'' 82°13'53'' River : Godavari, Krishna D 17°27'20'' 82°48'33'' Reservoir : Brahmayya Lingam Cheruvu, Yeleru, E 17°34'41'' 82°45'27'' Reserved forest : Kondapalli, Perecherla , Alluri sita rama raju reserve F 17°20'13'' 81°22'42'' forests. G 16°22'30'' 80°28'53'' Range of Elevation : 20 – 282 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 11 to 86 Split 15 20/60m 150 450+450 Explosive Manual /Mechanical Km spread

3c. Cuddapah basin

Crescent shaped easterly concave, Cuddapah basin falls in the east central part of Dharwar craton. The area has an irregular landscape with a number of hill ranges with intervening valleys and high lands. The main objective of the survey is to explore the Paleo-Proterozoic and Neo- Proterozoic sediments. The zone of Interest is from 3 to 9 Kms. About 850 LKM data is planned to be acquired along 8 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 14°29'49'' 77°39'06'' Main Towns/Cities : Peddachapalle, Prodadtur, Jamalmadugu, Alamgadda, Nandyal, Kurnool, Nandikotkuru, Atamkur, Tadipatri, Jamalmadugu, B 13°34'52'' 79°24'19'' Cudappah, Pulivendala, Velthanda, Tirupati, Thirumala, Roychoty, C 13°37'30'' 79°45'34'' Prodadtur, Bathcherla, Panem, Tirumala. D 14°29'27'' 78°58'55'' River : Pennar Reservoir : Srisailam , Velugodu Balancing Reservoir E 16°53'12'' 78°58'24'' Canal network : Network of canal from Velugodu and Srisailam Reservoir Reserved forest : Nandiyal, Velugodu, Seshalam, Mamanduru, Kodivengammabhavi , Tirupati, Errakanda North, Gadikota, Vangimall, F 16°54'08'' 77°37'12'' Palakonda, Ganganapalle, Nallamala National Park: Sri Venkateswara Range of Elevation : 240 – 585 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 40 to Split 8 20/60m 150 450+450 Explosive Mechanical / Pneumatic 191 Km spread

3d. Bastar

Rectangular-shaped Bastar craton is bounded by NW-SE trending Godavari and Mahanadi rifts, ENE-WSW trending Narmada-Son rift and NE-SW trending Eastern Ghats .The topography of Bastar basin provides a broad variety of landforms, contact form slopes as well as high. The main objective of the survey is to map sub-basalt Paleozoic-Mesozoic, Gondwana and Proterozoic sediments. The zone of Interest is from 3 to 6 Kms. About 240 LKM data is planned to be acquired along 3 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 19°17'29'' 81°46'32'' Main Towns/Cities : Jagdalpur, Jeypore, Raipur. B 18°37'30'' 81°45'37'' River: Sabari, Indravati. C 18°37'46'' 82°54'22'' National park : Kangar Valley National park Range of Elevation : 480 – 1065 m D 19°16'13'' 82°55'11''

Proposed data acquisition parameters: No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 55 to Split Manual/Mechanical/ 3 20/60m 150 450+450 Explosive 116Km spread Pneumatic 4. Sector 4 (Cauvery) In general, the topography comprises a vast alluvial and coastal plain. Major part of the proposed area constitutes plain terrain with gentle slope towards east. The fair weather window for data acquisition is from February to September.

The Cauvery Basin is an intra-cratonic rift basin, divided into a number of sub-parallel horsts and grabens, trending in a general NE-SW direction formed due to initial rifting. The main objective of the survey is to map deeper Tertiary and syn-rift Mesozoic plays. The zone of Interest is from 1 to 5 Kms. About 1900 LKM data is planned to be acquired along 40 lines with grid size of about 10km x 10km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 07°54'11'' 77°48'35'' Main Towns/Cities : Santhakulam, Mudalur, Sayapuram, B 08°35'32'' 78°19'24'' Tiruppuvanam, Selaiman, Fathimapuram, Radhapuram, Nanguneri, Srivaikuntham, Sankaraperi, Vilathikulam, Illuppaiyur, Manamadurai, C 09°06'26'' 78°26'33'' Anthakudi, Shanmuganathapuram, Thoothukudi, Puliyur, D 09°51'50'' 79°19'35'' Thiruppachethi E 10°13' 08'' 79°14'06'' River : Cauvery, Vaigai, Pambar, Thamiraparani , Vaippar F 10°44'21'' 77°44'39'' Reservoir : Kadambakulam G 09°30'57'' 77°56'55'' Range of Elevation : 20 – 200 m H 08°18'14'' 77°19'34''

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 13 to Split Manual/Mechanical 40 20/60m 150 450+450 Explosive 254 Km spread /Pneumatic/Weight drop

5. Sector 5 (Vindhyan A, Narmada and Satpura)

In general, the topography consists of hilly regions, ridges, plateau escarpments and forests and the fair weather window for data acquisition is from October to June for this sector.

5a. Vindhyan A

The Vindhyan basin is a Proterozoic intracontinental basin that developed in the central part of the Indian shield along with several other basins such as Cuddapah, Chattisgarh, etc.The Vindhyan rocks are covered by Deccan volcanics. The area has discontinuous chain of mountain ridges, hill ranges, highlands and plateau escarpments in west-central India. The main objective of the survey is to map deeper Proterozoic sediments and extension of the Vindhyan basin below the Ganga valley towards north and Mesozoic sediments towards south. The zone of Interest is from 2 to 6 Kms. About 4953 LKM data is planned to be acquired along 22 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) Main Towns/Cities : Bhopal, Indore, Ratlam, Dhar, S agar, Sehore. A 22°30'40'' 81°56'47'' River: Narmada, Mahi, Parbati, Betwa, Chambal, Gambia, Saraswati, Kolar, Dhasan. B 26°45'26'' 77°22'19'' Dam : Kaliasot, Himatgarh, Dungaria Dam C 25°28'29'' 74°48'50'' Reservoir: Gambheeri, Ga ndhi Sagar, Mahukheda, llahi, Abdalpura reservoir, Munjsagar Lake, Sirpur Tank, Ratapani Sanctuary Lake, , Canal network : Ratapani Canal, Kota Barrage RMC D 21°28'42'' 73°20'09'' Sanctuary : Gandhi Sagar, Sailana, Sardarpur, Ralamanadal, Kheoni, Narsinghgarh, Ratapani sanctuary. National Park: Vanvihar National Park Range of Elevation : 200 – 600 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 32 to Split 22 20/60m 150 450+450 Explosive Mechanical / Pneumatic 477 Km spread

5b. Narmada

The basin is bounded on the north by Vindhyans, on the east by Maikala range and on the south by Satpuras. Physiographically, the basin can be divided into hilly and plain regions. The hilly regions are in the upper part of the basin as well as in the lower middle reach and are forested. The main objective of the survey is to map deeper Proterozoic sediments and their thickness within the basin. The zone of Interest is from 2 to 6 Kms. About 667 LKM data is planned to be acquired along single line.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 22°09'07'' 73°25'25'' Main Towns/Cities : Jabalpur, Hosangabad. River: Tawa, Narmada, Veda. B 21°33'14'' 73°35'08'' Dam : Tawa Canal network : Network of Narmada canal. C 22°58'43'' 80°26'53'' Range of Elevation : 150 – 490 m D 23°33'28'' 80°19'48''

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source Split Explosive/ 1 667 Km 20/60m 150 450+450 Mechanical / Pneumatic spread Vibroseis

5c. Satpura

The Satpura basin is located south of and extends from Jabalpur to Lokartalai, Mohapani, The lower Gondwana sediments are exposed in syncline whose southern limb is marked by Pench-Kanhan and Tawa coalfields and Mohapani is located on the northern limb. The shape of the basin is governed by the intersection of the three prominent tectonic trends (i) the ENE/WSW fault parallel to the Narmada-Son lineament in the north, (ii) the NW-SE trend conforming to the Dharwar tectonic grain in the west and (iii) the NE-SW trend parallel to the Eastern Ghat tectonic grain. The main objective of the survey is to map Gondwana and Proterozoic sediments. The zone of Interest is from 2 to 6 Kms. About 245 LKM data is planned to be acquired along 4 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 22°50'54'' 78°19'38'' Main Towns/Cities : Suplai, Pachmarhi, Batri , Kukarpani River: Tawa, Dudhi river. B 22°27'40'' 79°17'31'' Dam : Rengali Dam C 22°51'25'' 79°10'53'' Reservoir : Sanctuary : Wild life sanctuary (Pachmarhi), Satpura National park D 22°29'48'' 77°44'06'' Range of Elevation : 200 – 1000 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 22 to Split Explosive/ 4 20/60m 150 450+450 Mechanical / Pneumatic 136 Km spread Vibroseis

6. Sector 6 (Bengal and Mahanadi) The topography of the area in general is plain, thickly cultivated paddy fields and the fair weather window for data acquisition is from October to June for this sector

6a. Bengal

Bengal basin is located between the eastern edge of the main Indian craton and Indo-Burmese orogeny to the south of Shillong Plateau. The formation of basin initiated during Middle-Upper Cretaceous time with differential subsidence. The main objective of the survey is to map deeper plays within Tertiary and Gondwana sediments. The zone of Interest is from 4 to 8 Kms. About 860 LKM data is planned to be acquired along 11 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 24°50'23'' 87°54'32'' Main Towns/Cities : Kharagpur, Medin ipur, Panagarh, Azimganj, B 22°28'29'' 86°09'24'' Jangipur, Ilambazar C 21°55'52'' 86°50'50'' River : Subarnarekha, Kangsabati, Shilabati, Dwarakeswar, Damodar, D 21°57'41'' 89°23'28'' Hooghly, Padma river E 23°13'38'' 89°59'18'' Sanctuary: JangalMahal Elephant corridor, Ramnabagan F 23°13'36'' 87°53'52'' Reserved forest : Jangal Mahal, Beliatore , SaringGarh, Humagarh, Gohaldanga National Park: Sunderban G 24°22'32'' 88°41'26'' Range of Elevation :10 – 105 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 23 to Split Explosive/ 11 30/90m 150 450+450 Manual/Mechanical 264 m spread Vibroseis

6b. Mahanadi

The Mahanadi Basin, a product of rifting and breaks up of Gondwana Land is situated on the East Coast of India. The onland part of the basin is limited to North West and West by Pre-Cambrian outcrops. The Northern plateau and Eastern Ghats are hilly regions covered well with forests. The erosion plains of the Central Table Land are traversed by the river Mahanadi and its tributaries. The main objective of the survey is to study hydrocarbon assessment of Tertiary sediments. The zone of Interest is from 1 to 5 Kms. About 2530 LKM data is planned to be acquired along 55 lines with grid size of about 10km x 10km.

Location: I Polygon coordinates Logistics D Lat (N) Long (E) ID Lat (N) Long (E) Main Towns/Cities : Bhadrak, Jajpur. A 20°40'16'' 86°10'21'' A' 19°16'08'' 84°55'46'' River : Kharasuan, Baitarani, Rushikulya B 20°46'58'' 86°59'29'' B' 19°25'55'' 85°08'52'' Reservoir : Tampara Lake C 21°11'26'' 86°49'32'' C' 19°41'40'' 85°07'56'' Reserved forest : Salandi, Khallikote, Tangi D 21°24'38'' 87°14'08'' D' 19°53'40'' 85°39'20'' Sanctuary : Mangaljodi bird sanctuary, E 21°38'50'' 86°55'56'' E' 20°50'19'' 85°33'50'' Kuldiha wildlife sanctuary F' 19°55'54'' 85°14'54'' National Park : Similipal National Park F 21°19'22'' 85°59'13'' G' 19°28'22'' 84°47'49'' Range of Elevation : 10 – 500m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 6 to 95 Split 55 20/60m 150 450+450 Explosive Mechanical / Manual Km spread

7. Sector 7 (Ganga)

The topography of the area in general is plain, thickly cultivated with hardly any forest cover and the fair weather window for data acquisition is from October to June for this sector. The Ganga basin is a part of the composite Ganges-Brahmaputra-Meghna basin. The basin is bounded by Himalaya or lower parallel ranges towards the north, Indus basin and the Aravalli ridge on the west and the Vindhyas and Chota Nagpur Plateau on the south. On the east the Ganges merges with the Brahmaputra through a complex system of common distributaries into the Bay of Bengal. The main objective of the survey is to know the sediment thickness as well as extension of the Ganga basin towards south and to map Tertiary and Proterozoic sediments. The zone of Interest is from 1 to 5 Kms. About 3130 LKM data is planned to be acquired along 31 lines with grid size of about 50km x 50km.

Location: Polygon coordinates Logistics ID Lat (N) Long (E) Main Towns/Cities : Meerut, Bulandsahar, Moradabad, Farukhabad, A 25°26'33'' 82°38'22'' Subhashnagar, Arrah, Saharsa, Muzaffarpur, Muzaffarnagar, Bijnor, Bulandsahar, Rampur, Badaun, Shahjahanpur, Hardoi, Sitapur, B 25°24'57'' 87°27'47'' Barabanki , Lucknow, Varanasi, Faizabad, Sultanpur, Azamgarh, C 26°54'17'' 88°48'50'' Ghazipur, Baliya, Bhojpur, Saran, Patna. River : Ganga, Gomti, Gandak, Son, Bagmati, Ghagara, Koshi, Kamla, D 26°34'46'' 82°23'22'' Balan, Sai, Ramganga, Bahgul, Karamansa E 30°10'58'' 77°36'09'' Canal network : Sharda , Upper Ganga , Azamgarh distributary, Dohrighat canal F 28°38'29'' 77°07'22'' Range of Elevation :55 - 250 m

Proposed data acquisition parameters: No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 22 - 200 Split 31 20/60m 150 450+450 Explosive Mechanical / Manual Km spread

8. Sector 8 (Deccan Synclise, Bhima and Kaladgi)

In general, its topography is plain, undulating terrain, mountainous, rugged or high slopes and the fair weather window for data acquisition is from October to June for this sector.

8a. Deccan Synclise

Deccan Syncline is located in the western and south-central part of India. The Syneclise is considered to have good potential for hydrocarbons. The main rock exposures in the basin consist of a number of basaltic lava flows which have been poured on to earth’s surface during Cretaceous-Paleocene period, blanketing all pre-existing rocks ranging in age from Precambrian to Cretaceous. Some of the lines are passing along very steep slope and continuous hills in the western side . The area is thickly cultivated. The main objective of the survey is to map sub-basalt Paleozoic-Mesozoic, Gondwana and Proterozoic sediments and study hydrocarbon prospectivity. For delineation of subtrappean basement configuration, 2D Long offset (16 -18 kms) data along few lines (2 to 4) is to be acquired. The zone of Interest is from 1 to 4 Kms. About 10810 LKM data is planned to be acquired along 22 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 18°51'40'' 72°52'36'' Main Towns/Cities : Dhule, Jalgaon, Bhusawal, Nagpur, Hiranghat, Nanded, Parbhani, Nasik, Saputara, Khopoli, Mulgaon, Kondiwade, B 15°44'08'' 73°38'12'' TakaweBk, Navalak, Umbre, KaranjaVihere, PimpriKh, WakiBk, C 15°54'56'' 76°52'14'' Tarodobachiwadi, Rajapur, PimpalGaon, Kolgaon, MahandulWadi, D 19°25'16'' 79°51'43'' Ghumari, Yelamb, Mangrul, Gandhanwadi, Tandlyachiwdi, Sabla, E 21°44'18'' 79°16'44'' Dhavadi, Helamb, Oottapallu, Argul, Siddapur, SuneGaon, Makloor, Mannegudem. Reservoir: Shire, Ispur, Sakat, Shelmoha, Waghdaratanda, Wajarwadi, Rui, Swargaon, Pethwadj, Abbapur Cheruvu reservoir. F 21°24'57'' 73°21'47'' Forests : Botha, Melaghat tiger Sanctuary : Koyna, Gautala, Radhanagar, Yawal Range of Elevation : 200 - 600 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 192 - Split Explosive/ Mechanical/Pneumatic/ 22 20/60m 150 450+450 664 Km spread Vibroseis Vibroseis/Weight drop

8b. Bhima

The NE trending irregularly sinous Bhima basin consisting dominantly of limestone covers and is situated to the northwest of Cuddapah basin and northeast of Kaladgi basin. It overlies the granitic basement of Eastern Dharwar craton with a profound unconformity and has faulted contacts at many places. Deccan Trap overlies Bhima basin in the north. The area has no major hill ranges but some part of the proposed lines are passing through forests. The main objective of the survey is to map sub-basalt Paleozoic-Mesozoic, Gondwana and Proterozoic sediments and study hydrocarbon prospectivity. The zone of Interest is from 1 to 4 Kms. About 280 LKM data is planned to be acquired along 4 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 15°56'06'' 76°50'09'' Main Towns/Cities : Deodurg, Lingsugar, Devarsugar, Yadgir, Narayanpet, Gumatkal, Kosgi, Shorapur, Raichur, Shahapur B 16°45'12'' 78°06'11'' River : Krishna, Bhima Canal network : Narayanapura, canal networks of Basavasaagara dam C 17°13'59'' 77°45'51'' Dam : Basavasaagara Reserved forest : Minaspur Reserve Forest. D 16°26'07'' 76°28'54'' Range of Elevation :350- 652m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 39 - 147 Split Mechanical/Pneumatic/ 4 20/60m 150 450+450 Explosive Km spread Vibroseis/Weight drop

8c. Kaladgi Kaladgi is an E-W trending irregular basin underlain by the basement granitoids (Penninsular Gneiss and Dharwar Batholith) of the Dharwar craton in the south and east and overlain by the Deccan Trap in the north. Some part of the northerly and westerly extension of the basin is concealed under the Deccan Traps, where the traps are removed by weathering and erosion. The main objective of the survey is to map sub-basalt Paleozoic-Mesozoic, Gondwana and Proterozoic sediments and study hydrocarbon prospectivity. The zone of Interest is from 1 to 4 Kms. For delineation of subtrappean basement configuration, 2D Long offset (16 -18 kms) data along few lines (2 to 4) is to be acquired. About 310 LKM data is planned to be acquired along 5 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 15°56'22'' 74°24'59'' Main Towns/Cities : Belgaum, Karlakatti B 15°42'43'' 74°24'46'' Reservoir : RenukaSagar Reservoir C 15°30'28'' 76°55'35'' Range of Elevation : 540 - 900 m D 16°58'16'' 76°53'52''

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 20 - 170 Split Mechanical/Pneumatic 5 20/60m 150 450+450 Explosive Km spread /Vibroseis/Weight drop

9. Sector 9 (Vindhyan B, South Rewa –Damodar and Chattisgarh)

In general, its topography remain within the category of undulating terrain, mountainous, rugged or high slopes and the fair weather window for data acquisition is from October to June for this sector.

9a. Vindhyan B

The Vindhyan basin is a classic example of Proterozoic intracontinental basin that developed in the central part of the Indian shield along with several other basins such as Cuddapah, Chattisgarh, etc.The Vindhyan rocks are covered by Deccan volcanics. It refers to a discontinuous chain of mountain ridges, hill ranges, highlands and plateau escarpments. The main objective of the survey is to map deeper Proterozoic sediments and extension of the Vindhyan basin below the Ganga valley towards north and Mesozoic sediments towards south. The zone of Interest is from 2 to 6 Kms. About 300 LKM data is planned to be acquired along 4 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 24°24'28'' 82°19'32'' Main Towns/Cities : Robertsganj , Mirzapur River : Son B 24°25'18'' 84°07'49'' Sanctuary : Chandraprabha C 24°58'41'' 84°59'22'' Range of Elevation : 120 - 560 m D 24°59'30'' 82°19'28'' Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 32 – 165 Split Mechanical/Pneumatic/ 4 20/60m 150 450+450 Explosive Km spread Vibroseis/Weight drop

9b. South Rewa –Damodar

The south Rewa basin is an E-W trending intracratonic basin in the central part of subcontinent. It is delimited to the north by Son Narmada lineament and to the east and southeast by Precambrian metamorphics. Gondwana sediments ranging in age from Early Permian to Early Cretaceous are exposed. The major fault system in the basin is aligned parallel to the Satpura trend. The main objective of the survey is to map Gondwana and Proterozoic sediments. The zone of Interest is from 1 to 3 Kms. About1460 LKM data is planned to be acquired along 17 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) Main Towns/Cities : Shahdol, Ambikapur, A nupur, Korba, Koriya, A 21°08'56'' 85°18'35'' Chirmiri, Jharsuguda, Sundargarh, Sonhat, Baikunthpur. River : , Hasdeo Bango , Mahanadhi B 22°46'36'' 84°11'14'' Dam : Rengali Reservoir : Tawa reservoir C 24°52'48'' 83°54'27'' Forests : Putka Devpahari, Margarh-Kailash Sanctuary: Pancmarhi wild life sanctuary D 23°37'15'' 80°31'55'' National Park: Bandhav Garh, Sanjay National park Range of Elevation : 200 - 1100m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Energy Fold Type of drilling lines length Interval channels Source 19 - 218 Split Explosive Manual/Mechanical 17 20/60m 150 450+450 Km spread /Pneumatic

9c. Chattisgarh

Chhattisgarh basin is situated on the northern edge of Bastar craton. It is bounded by the Kotri- Dongargarhorogen in the west, Satpura mobile belt in the north, Gondwana graben of Mahanadi in the northeast and the Eastern Ghats mobile belt in the southeast. It consists of high plateau area separated by the intermittent narrow valleys and steeply sloping plains. The main objective of the survey is to explore Gondwana and Proterozoic sediments and its thickness. The zone of Interest is from 1 to 5 Kms. About 663 LKM data is planned to be acquired along 7 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 19°52'15'' 81°18'21'' Main Towns/Cities : Bilaspur, Raipur, Durg, Raigarh, Bargarh B 21°06'26'' 84°14'34'' River : Mahandi, Shivnath, Pairi, Jonk, Ong, Kharun, Tandula, Sondur Sanctuary : Barnawapara, Gomarda, Sitanadi wildlife sanctuary C 22°07'51'' 82°33'56'' Reserved forest : Barnawapara, Gomarda Abhyran forest D 21°48'10'' 80°52'58'' Range of Elevation : 130 - 685 m

Proposed data acquisition parameters: No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 35 - 262 Split 7 20/60m 150 450+450 Explosive Mechanical/Pneumatic Km spread 10. Sector 10 (Himalayan Foreland, Karewa and Spiti- Zanskar)

In general, the topography is rugged with deep valleys and high hills as well as complex mosaic of forest-covered ranges. The climate is very cold with below freezing temperatures and the area is permanently covered with snow and ice. Snowfall in the region takes place in the month of December and may extends up to January or early February. The fair weather window for data acquisition is from March to November.

10a. Himalayan Foreland

Himalayan Foothills basin is a NW-SE aligned basin located in the NW Himalayan Foothills region. The basin borders with Pakistan to the NW and Nepal to the SE. Northern and southern limits are demarcated by terrain defining faults namely, the Main Boundary Thrust (MBT) and the Himalayan Frontal Fault (HFF). Area is having rugged topography which contains the greatest number of high peaks, complex mosaic of forest-covered ranges and fertile valleys. The proposed area is adjoining to Tibet Border. The main objective of the survey is to map Tertiary sediments in northern side of MBT and its thickness as well as to study hydrocarbon potential. The zone of Interest is from 4 to 6 Kms. About 1300 LKM data is planned to be acquired along 20 lines with grid size of about 50km x 50km.Considerng the logistics and feedback, the duration of time for completion may be expanded.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 31°39'17'' 76°48'55'' Main Towns/Cities : Mandi, Kullu, Bhuntar, Joginder Nagar, Shimla, B 31°13'53'' 76°43'42'' Manali, Palampur, Dharamshala, Chamba, Dalhousie, Udhampur, C 29°23'50'' 80°19'08'' Reasi, Jammu, Kathua, D 29°59'49'' 80°44'49'' River : , Chenab, Jhellum, Alaknanda, Mandakini, Bhagirathi, Ganga, E 31°08'34'' 78°46'15'' Beas river F 31°47'50'' 78°06'38'' Dam: Tehri Dam, Salal Hydro Electric Project, Chamera Power House, G 33°33'46'' 74°49'52'' Baglihar Power Project, Maharana Pratapsagar project. Forests: Utarkhan H 32°58'09'' 74°17'25'' National Park : Great Himalayan Range of Elevation : 600 - 5000 m

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 14 - 347 Split Mechanical 20 20/60m 150 450+450 Explosive Km spread /Pneumatic/Helirig

10b. Karewa

The Kashmir Paleozoic-Mesozoic basin, spread over an area of about 5,200 sq km, lies in an intermontane valley formed by bifurcation of the Great Himalayan Range west of the Ravi River. It occupies an oval-shaped depression between the PirPanjal Range in the SW and Zanskar Range in NE. The Paleozoic-Mesozoic succession rests over the crystalline rocks of the Salkhala. Proposed area extends up to the Line of Control in J&K. The general topography of the valley is as rugged and mountainous. The main objective of the survey is to map Paleozoic, Mesozoic carbonates and study hydrocarbon potential. The zone of Interest is from 4 to 6 Kms. About 300 LKM data is planned to be acquired along 6 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 33°36'57'' 74°24'13'' Main Towns/Cities : Anantnag, Baramula, Udhampur , Muzaffarabad B 33°16'36'' 75°29'09'' River : Jhelum and its tributaries Range of Elevation : 1600 - 4100 m C 33°32'54'' 75°44'30''

D 34°11'26'' 74°54'55'' E 34°11'48'' 74°16'14''

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 12 - 140 Split Mechanical 6 20/60m 150 450+450 Explosive km spread /Pneumatic/Helirig

10c. Spiti- Zanskar

The Spiti Valley, located north of the Pir Panjal Range, exposes an excellent section of Neoproterozoic-Cretaceous rocks in the Tethyan Himalaya in Himachal Pradesh. The Spiti Tethyan rocks towards NW through the Lahaul Valley extend into the Zanskar area where Paleocene-Eocene sequences are also preserved. The terrain has an immature topography and is traversed by deep valleys and high hill range .The main objective of the survey is to map Paleozoic, Mesozoic sediments and study hydrocarbon potential. The zone of Interest is from 4 to 6 Kms. About 500 LKM data is planned to be acquired along 7 lines with grid size of about 50km x 50km.

Location: Polygon coordinates ID Logistics Lat (N) Long (E) A 31°59'10'' 77°54'36'' Main Towns/Cities : TongdeCharten, Rinam, Skyagam, Chukarpo, B 32°44'15'' 78°50'33'' Pilithang, Rimala, C 34°30'14'' 76°33'38'' River : Askar, Suru, Doda/Chankpo, Tsarap Lingti Chu, Phirse Fu, Spiti, Sankpo National Park: Hemis D 34°22'52'' 76°23'48'' Range of Elevation : 3500 - 5400 m

Proposed data acquisition parameters: No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 35 -263 Split Mechanical 7 20/60m 150 450+450 Explosive Km spread /Pneumatic/Helirig

11. Sector 11 (Andaman-Nicobar)

In general, the area lies over island and major part is covered with forests. The fair weather window for data acquisition is from February to September.

The Andaman-Nicobar basin forms a part of Island Arc System which extends from Myanmar in the north to Indonesia in the southeast. The main objective of the survey is to map Tertiary sediments and play types. The zone of Interest is from 3 to 7 Kms. About 310 LKM data is planned to be acquired along 9 lines with grid size of about 50km x 50km.

Location:

Polygon coordinates ID Logistics Lat (N) Long (E) A 11°38'35'' 92°30'56'' Main Towns/Cities : Tirur, Kanchangarh, Adazig, Kadamtala, B 11°37'33'' 92°44'42'' Kaushalyanagar, Madhupur, Radhanagar, Chainpur, Colinpur, Rangat. C 12°30'37'' 92°59'07'' Range of Elevation : 10-300 m D 13°29'18'' 93°52'46'' E 13°34'14'' 92°53'09''

Proposed data acquisition parameters:

No of Line Spread Group/Shot Active Fold Energy Source Type of drilling lines length Interval channels 12 - 133 Split 9 20/60m 150 450+450 Explosive Manual/Mechanical Km spread

SCOPE OF THE WORK: The scope of work is briefly described for data Acquisition (A) and Processing and Interpretation(PI) separately. Interested bidders may submit their response for Acquisition (A) or Processing and Interpretation (PI) or both ie, A&PI. A. Acquisition Prior to submitting the response to EOI, it is advised to have a thorough reconnaissance of the area to get fully acquainted with details of surface/ near surface condition, topographic features, weather conditions, working culture, socio-political environment, security aspects and law of the land and other relevant information for seismic survey. It will also help to judiciously plan inputs for successful execution of the project.

a. The bidder shall plan and execute high quality 2D Seismic survey efficiently by using appropriate methodology, equipment and energy source by deploying experienced personnel with professional competence and to provide Corporation with the industry standards output.

b. Bidder shall carry out experimental work prior to the commencement of regular production to optimize the acquisition parameters like charge size, shot hole depth, sweep parameters, receiver pattern to ensure meaningful data. c. Bidder shall carry out uphole/SR survey for near surface modelling to decide optimum depth of shot holes during the survey work. d. Planning and Quality Control of the seismic data acquisition is primarily the responsibility of the bidder. However, experts hired for this purpose shall be associated for monitoring and quality assurance through analysis of raw as well as processed data in field. Personnel from ONGC/DGH shall do overall co-ordination throughout the contract period to ensure security and quality of data. e. The bidder shall deploy necessary processing system with adequate and competent personnel in field/base office to monitor and ensure quality of seismic and topographic data and generate output through onsite processing. However, if any error related to acquisition, bidder shall take corrective measures before the submission of final data. f. Bidder shall obtain permissions from Government authorities, Custom clearance, licenses for storage, transportation and use of explosives and any other license/clearance. However, necessary recommendatory letters, if required, shall be provided by ONGC. g. Bidder shall arrange for safe transportation and delivery of two sets of data cartridges along with requisite technical information at corporations’ premises. h. Bidder shall fulfill all the mandatory requirement of HSE specifications and appropriate safe work practices. i. Requirement: Broad requirement for a bidder are as follows: 1) Bidder should be a Indian/international company/firm/ joint venture/ consortium having expertise and experience in 2D/3D seismic data acquisition. 2) Bidder should have adequate resources and equipment in good working order and fully trained personnel capable to undertake the 2D Seismic data acquisition very efficiently and complete the job as per time schedule. 3) Bidder has to arrange explosives/ detonators and other consumables required in respective sectors and adhere to prescribed rules and regulations. 4) Bidder should have experience in carrying out 2D/3D seismic survey in areas similar to respective sectors. 5) Bidder should be capable to deploy appropriate equipment like line telemetry (cable) /cable less/cable free system, receivers (analog or digital), DGPS system, energy source like Dynamite/Vibroseis/Weight drop related to survey. 6) Bidder should deploy state-of-art equipment. Major equipment viz. seismic equipment, processing system, DGPS, Vibrators, drilling rigs, should not be more than 4 years old at any point of time during the contract period. 7) Bidder should complete mobilization and commence work within 8 to10 weeks from issue of Letter of Award so as to start the work in respective sector as per table1. 8) Bidders should adhere to various applicable rules and regulations in India related to the activities of Seismic Data Acquisition. B. Processing and Interpretation a. The bidder shall plan and execute high quality 2D Seismic data processing and interpretation by using appropriate state of art methodology, equipment and software by deploying experienced personnel with professional competence and to provide the industry standards output. b. Bidder shall carry out experimental work prior to the commencement of regular production to optimize the processing parameters to ensure meaningful data. c. Planning and Quality Control of the seismic data processing and interpretation is primarily the responsibility of the bidder. However, experts hired for this purpose shall be associated for monitoring and quality assurance through analysis of raw as well as processed data. Personnel from ONGC/DGH shall do overall co-ordination throughout the contract period to ensure security and quality of data. d. The bidder shall deploy necessary QC system with adequate and competent personnel in to monitor and ensure quality of processed data. If any error is noticed during processing / interpretation, bidder shall take corrective measures before the submission of final data. e. Bidder shall obtain permission(s) from Government authorities, Custom clearance, licenses etc. However, necessary recommendatory letters, if required, shall be provided by ONGC. f. Bidder shall arrange adequate work space, hardware and sufficient no. of software licenses during scheduled period for uninterrupted processing and interpretation. g. Bidder shall arrange for safe transportation and delivery of two sets of data cartridges along with requisite technical information at corporations’ premises. h. Bidder shall fulfill all the mandatory requirement of HSE specifications and appropriate safe work practices. i. Requirement: Broad requirement for a bidder are as follows: 1) Bidder should be Indian/international company/firm/ joint venture/ consortium having expertise and experience in 2D/3D seismic data processing and interpretation. 2) Bidder should have adequate resources and equipment in good working order and fully trained personnel capable to undertake the 2D Seismic data processing and interpretation efficiently and complete the job as per time schedule. 3) Bidder should have experience in carrying out 2D/3D seismic data processing and interpretation in areas similar to respective sectors. 4) Bidder should be capable to process the data using different receivers, energy source and other variables related to survey. 5) Bidder should deploy state-of-art processing and interpretation hardware systems, Major equipment should not be more than 4 years old at any point of time during the contract period. 6) Bidder should complete mobilization and commence work within 8 to10 weeks from issue of Letter of Award so as to start the work in respective area as per table 2. 7) Bidder shall arrange required consumables 8) Bidder shall adhere to various applicable rules and regulations in India related to safety, security, confidentiality and other activities of related to Seismic Data processing and interpretation 2. Submission of EOI Interested bidders (Indian/international) ie, company/firm/ joint venture/ consortium having expertise and experience in 2D/3D data acquisition, processing and interpretation are invited to submit their EOI separately for A or P&I or both for one or more or all sectors. EOI response should accompany the following information/documents:

(i) Experience details for data acquisition in last 5 years as below.

Contract Contract Country/ Volume Terrain Equipment Energy Sl. Client No period Location of work conditions used source

(ii) Experience details for data processing and interpretation in last 5 years as below.

Contract Contract Country/ Volume Terrain Software Imaging Sl. Client No period Location of work conditions used objective(s)

(iii) Details of processing system software and hardware (iv) Documentary evidence in support of sound financial standing like audited financial reports of last two years. (v) Details of HSE policies, procedures and statistics covering last 5 years (vi) Details of court cases against the company in last 5 years. (vii) Details of contracts terminated in the last 5 years. (viii) Details of processing software and experience of key personnel likely to be deployed during data acquisition. (ix) No. of seismic crews and the sector where bidder intends to participate for acquisition. (x) Details of software and experience of key personnel likely to be deployed during data processing and interpretation. (xi) Budgetary quote (area-wise) as per format given at Annexure-1A and/ or 1B. (xii) Any other information that will demonstrate the Contractor’s competence/capability.

Interested bidders, who fulfill the specifics above, should submit their response by post/fax/ email /courier within 30 days from the date of notification. The hard copy in a sealed cover with the superscription “Expression of Interest (EOI) for 2D seismic data API in unapprised onland areas” along with supporting documents should reach within 10 days after above period at following address: Nodal Officer – 2D API, ONGC, Geophysical Services, Room No. 311, 2 nd Floor, Negi Bhawan, ONGC Makarpura Road, Vadodara, Gujarat, India PIN-390009 Telefax : +91 265 2631771, Email: [email protected] Annexure-1A Format for budgetary quote (area-wise) for 2D Seismic data acquisition Sector No. : Name of the sector : Unit of Description Quantity Unit Rate in ₹ /US $ Amount in ₹ /US $ measurement A. Mobilization Charges per sector 1 B. Demobilization Charges per sector 1

Name of Area :

C. Data Acquisition Charges with 1. Explosive source LKM 2. Vibroseis source LKM 3. Any other source (pl specify) LKM D 1. Uphole Survey No. 2. SR Survey No. E. Experimental surveys per day F. Any other charges G. Total (A+B+C+D+E+F) H. Service tax @ 12.36% I. Total with service tax(G+H)

Note: 1. The sum of Mobilisation & Demobilisation charges should not exceed 2% of the Total at (G) above. 2. The above quoted rates should be inclusive of all the taxes applicable including but not limited to Corporate tax, Personnel Tax and other statutory levies. 3. The budgetary quotations is being sought for budgetary purposes only ie, to assess the market and project viability. It may be noted that the award of work will be made subsequently after invitation of bids through e-tendering as per laid down procedures/guidelines of ONGC.

Annexure-1B Format for budgetary quote (area-wise) for 2D Seismic data processing and interpretation

Name of Area : Unit of Description Quantity Unit Rate in ₹ /US $ Amount in ₹ /US $ measurement A. Mobilization Charges Lump sum 1 B. Demobilization Charges Lump sum 1 C. Data processing Charges LKM D . Data Interpretation charges Lump sum E. Any other charges G. Total (A+B+C+D+E) H. Service tax @ 12.36% H. Total with service tax(G+H)