EC Compliance Report: Oil Production from Ravva Off-Shore Field In
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EC Compliance report: Oil Production from Ravva Off-Shore Field in Godavari Basin and On-Shore Field Terminal at S’Yanam ___________________________________________________________________________________ COMPLIANCE STATUS OF CONDITIONS OF MOEF&CC DURING ENVIRONMENTAL CLEARANCE OF THE PROJECT Name of the Project: Oil Production from Ravva Off-Shore Field in Godavari Basin and On-Shore Field Terminal at S’Yanam Clearance Letter No: J - 11011/11/90-IA-II dated 30th July 1990 (preliminary clearance) Period of Compliance Report: Progressive EC Compliance Reporting period is October- 2019 to March - 2020 Average production details: Average production details for the reporting period is detailed below Parameter Units Approved Capacity Present Avg. Production Crude Oil production BOPD 50,000 11,538 BOPD Associated gas production MMSCMD 2.32 0.881 MMSCMD* Note: * including Dry Natural Gas for the period Oct’19 to Mar’20. All the conditions mentioned in this EC are being complied. Within the Ravva field, there exists 8 oil and gas platforms. 6 platforms (RA, RB, RC, RD, RE and RF) are meant for crude oil production and remaining 2 (RG and RH) are meant for gas production. The point wise compliance is detailed below: S. No. CONDITIONS COMPLIANCE STATUS i) The Project Authority must submit the Complied. comprehensive EIA report for the development of oil/gas fields for this project within a period of 9 months before commencement of the production. (ii) The Project Authority must strictly adhere to Stipulations made by the Central Government and Merchant the stipulations made by the Central Shipping Act are adhered to. Merchant Shipping Act are being Government as part of any international adhered to as per the following: conventions or Merchant Shipping Act. 1. The Merchant Shipping Act. 1958, as amended & applicable. 2. MARPOL 1973/1978 as amended & applicable. At present, Mahananda vessel has been engaged for supporting services. (iii) The crude and gas distribution network The terminal has been designed to handle required fluid volume. should be made in such a manner that the The field has been on decline and fluid rates are much lower than handling terminals need not expand their the installed capacity. capacity to excessively high levels. (iv) The Project Authority must (a) collect all No construction activities were carried out during the reporting constructions wastes in ships for on-shore period. disposal (b) control and remove any There have been no incidents of oil spill or accidental discharges. pollution or contamination which originated Minor quantities of garbage and waste generated at offshore above the surface of the sea from platforms are brought to the onshore terminal by vessel to port and negligence, spills of wells, lubricants, ballast from there by road. There are no unused objects or sunken plant and garbages within the project proponent’s structures left in the Project area. possession and control and (c) raise and remove all sunken plant structures or objects arising from the proposed activities. (v) The Project Authority must shut down the Complied. system to provide primary protection by As a part of design of offshore facilities, automatic shut-down pressure control instrumentation, to prevent systems through pressure control instrumentation is in place to or minimize the escape of crude oil or gas. prevent the escape of oil or natural gas in case of leakage. This function being tested periodically. (vi) The Project Authority must use such type of A list of production and treatment chemicals used are as follows. chemicals which are permissible and MSDS of all hazardous chemicals are maintained at site. Refer information regarding the type of chemicals below Table for the list of chemicals used in the site. used and toxicity must be made available to PPD Scale Inhibitor - this Ministry regularly, changes in the use of Page 1 of 5| Environmental Clearance Compliance report for J-11011-11-90-IA-II Sensitivity: Public (C4) EC Compliance report: Oil Production from Ravva Off-Shore Field in Godavari Basin and On-Shore Field Terminal at S’Yanam ___________________________________________________________________________________ S. No. CONDITIONS COMPLIANCE STATUS any type of chemicals in addition to the De-emulsifier Sodium Hypochlorite above should be informed to this Ministry Oil Corrosion Inhibitor Glycol along with their quantity, consumption and toxicity levels. Any Chemicals which have Water Corrosion Inhibitor Therminol 55 accumulative property in benthos or Biocide-1 Propane sediments should be avoided or their use restricted to the minimum. They should Biocide-2 Gas Phase Corrosion Inhibitor monitor their concentration levels in Biocide -3 Drag Reducing Agent sediments fauna, flora and fish tissues Chemicals details being submitted to PCB and MoEF along with the six-monthly compliance report and annual environmental statement Form 5. Monitoring of water quality, sediment characteristics, plankton diversity and concentration of heavy metals in fish tissues is being undertaken periodically by Andhra University. Refer Annexure 8 Offshore marine monitoring report (vii) The Project Authority should monitor the Monitoring of water quality, sediment characteristics, phyto- population of marine biota around the plankton, zoo planktons, benthos and other marine diversity and proposed exploration area and within a concentration of heavy metals in fish tissues is being undertaken radius of 5 kms. The recorded data should periodically by Andhra University. Refer Annexure 8 Offshore be furnished once in six months to this marine monitoring report Ministry. Any major changes observed should be reviewed carefully. (viii) The Project Authority must provide ear All the employees working in high noise areas are provided with muffs/ any other hearing protection personnel protective equipment (PPE) including hearing protection measures to the employees at the time of devices like ear muffs/ ear plugs. their duty to mitigate the effect of noise. (ix) Releases containing pathogenic bacteria, Offshore platforms are unmanned with no accommodation facilities. viruses and parasites that survive in marine Only maintenance staff visits the platform as and when required. life must be completely, precluded by There are no staying facilities provided in the Platform. During adequate treatment measures on the drilling campaigns rig crew stayed in the rig accommodation deck, platforms. waste generated from the rig being treated through sewage treatment plant at the rig and food waste processor before discharge in to marine accordance with MARPOL regulations. (x) The Project Authority must undertake No flaring at offshore installations. adequate measures to minimize the burning Measures are already undertaken to reduce flaring at the on-shore of gas in flares and for smoke reduction at terminal by the installation of four associated Gas Compressors all the offshore installations. The flare and a third stage Gas Recovery Compressor and the onshore should be non-luminous at all stages of terminals are provided with 3 No’s. of flare stacks of 30m height. operations. This will reduce the buildup of The facilities are installed with HC sensors to monitor any leakage. particulate matter in the environment. They In addition, periodic fugitive emission leakage detection study is should measure hydrocarbon emissions at being carried out. regular intervals. (xi) The Project Authority must strictly adhere to Being complied. the regulations made by MARPOL Discharges from vessels engaged in the field meet the MARPOL Conventions 1973/1978, for setting limits, requirements as applicable under Annex I, II, III, IV, V & VI. for discharges from offshore oil-gas Following Certificates are issued towards compliance for exploration and production activities. Production Support Vessel Mahananda, currently engaged at Ravva Block: I. International Oil Pollution Prevention Certificate II. Certificate of Fitness for carrying Noxious Liquid Substances in Bulk. III. Document of Compliance for carrying Dangerous Goods IV. International Sewage Pollution Prevention Certificate V. International Air Pollution Prevention Certificate Page 2 of 5| Environmental Clearance Compliance report for J-11011-11-90-IA-II Sensitivity: Public (C4) EC Compliance report: Oil Production from Ravva Off-Shore Field in Godavari Basin and On-Shore Field Terminal at S’Yanam ___________________________________________________________________________________ S. No. CONDITIONS COMPLIANCE STATUS VI. Garbage Management Plan Garbage generated on board rig & vessel is handled as per Garbage Management Plan as applicable. There have been no incidents of oil spill or accidental discharges. (xii) The Project Authority must perform Static Noted for compliance. Sheen Test of any other approved test for Drilling fluids being used for drilling are not Oil based, synthetic oil- the drilling fluids, drill cuttings that are based fluids which are ecofriendly. Drill cuttings generated during discharged into the sea. drilling treated through shale shakers, vertical cutting dryer and centrifuge to recover oil from the cuttings before discharge to marine. Drilling fluids are recycled continuously, no discharge in to marine. Drilling fluids toxicity and heavy metal concentrations analyzed as per GSR 546, within the prescribed limits. (xiii) The Project Authority must establish oil spill Oil Spill Response and Contingency Plan has been prepared as control centres at vulnerable areas with high per the NOS-DCP guidelines.