Geoarabia Volume 1 Number 1, 1996
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2nd Middle East Geosciences Conference 15-17 April 1996 Bahrain GEO’96 ABSTRACTS with Authors' Biographies and Photographs (A GeoArabia supplement containing a detailed GEO’96 Conference Program is being distributed separately) Editor’s Note Abstracts are listed in alphabetical order by surname (family name) of the primary author. Authors whose names appear with more than one paper are identified biographically in one paper, and referenced in the other(s). Speakers are indicated by an asterix. More than one asterix indicates poster presentation by several authors. Abstracts and biographies were sent to primary authors for proof-reading. They have also been proof- read in part by Ibrahim A. Al-Jallal, Richard D. Chimblo, Ronald B. Clark, Joshua D. Cocker, John Filatoff, Dennis J. Fyfe, Geraint W. Hughes, Panos G. Kelamis, Daniel A. Nietupski, Rex C. Price, Arnold M. Rivett and Hasan S. Talu from Saudi Aramco, and Peter J.R. Nederlof from PDO. Some authors could not be contacted to provide photographs. Abstracts should be referenced as: Author(s) 1996. Title of Abstract. Presented at the 2nd Middle East Geosciences Conference GEO’96. GeoArabia: Middle East Petroleum Geosciences (Abstract), v. 1, no. 1, p. X. 95 Downloaded from http://pubs.geoscienceworld.org/geoarabia/article-pdf/1/1/95/5406881/geo96.pdf by guest on 02 October 2021 formation of oil and gas and basin Application of Source Rock Maturity modeling. He is the author of a book Studies in Basin Thermal History. and several papers on these subjects Example: Lower and Middle Cretaceous and has undertaken overseas lecture Formations of Kuwait tours. He has a BSc in Chemistry from Edinburgh University, a BA in Geology from the Open Abdullah, Fowzia H.A.* Kuwait University University and PhD from London and Robert R.F. Kinghorn University. Imperial College, UK Geographical Information System (GIS) A correlation was made between theoretical and and Remote Sensing in the experimental maturity levels to investigate the thermal history of the area. Rock samples of Lower Exploration Environment and Middle Cretaceous age were collected from four well locations in Kuwait. Maturity was measured Abel, Roger D.* and W. Mark Tuttle using the following parameters: thermal alteration Petroleum Development Oman (PDO) index TAI, vitrinite reflectance and pyrolysis thermal Geographical Information System (GIS) technology parameters. A comparison of the different and Remote Sensing have been implemented in parameters indicates that oil generation starts at a Petroleum Development Oman (PDO) within the depth of 3,050 ± 305 meters (10,000 ± 1,000 feet). The Exploration Topographic Department in support of input for the theoretical TTI index calculation were various applications over the previous two years. taken from well logs. The results indicate an This paper discusses the approach adopted by PDO, overestimated maturity level (depth of oil generation the techniques used, and the benefits to the business. = 2,530 ± 90 meters, 8,300 ± 300 feet). This might The primary uses for GIS technology within indicate that the amount of heat received by these exploration are in providing users with simple access sediments was not constant during time and was to corporate attribute data via a uniform map-based lower than present day situation by 5 to 7˚C per interface, in providing the means to carry out data kilometer as indicated by the TTI calculation. This quality control, spatial analysis, and mapping. change in geothermal gradient with time cannot be Initially GIS technology had been implemented with related directly to plate tectonic movement in the applications linking to the corporate well database, area. It might be a result of local geologic changes. to prospect and lead databases for portfolio Many geologists related the anticlines in the area management, and to seismic 2-D and 3-D location around the Gulf to be a result of epirogenic and interpretation data. Particularly for personnel movement. The possible explanation is an upward new to the PDO environment, GIS provides a tool migration of salt rocks with time that formed the for users to become quickly familiar with the broad elongated domes of the studied fields. As the available corporate data and for managers to analyze salt approaches the surface with time the geothermal data in a way not previously possible. This paper gradient increased. will demonstrate how the implementation of GIS in combination with the development of homogenous Fowzia H.A. Abdullah is an corporate databases is leading to an improvement Assistant Professor in the Geology in data quality, in wider use of common datasets, and Department of Kuwait University better decision making. since 1993. She worked as a Since January 1994, PDO has used digital satellite teaching assistant for three years at images of the earth in support of hydrocarbon Kuwait University. Fowzia joined exploration activities. Specific applications of these the Environmental Protection methods to exploration processes include mapping Department in Kuwait as a of surface sedimentation and near-surface geological researcher for two years. She has a features for identification of 3-D seismic velocity BSc in Geology and a MSc in anomalies resulting from incorrect application of Petroleum Geology from Kuwait University. She obtained statics corrections, identification of difficult and her PhD and DIC from Imperial College, London hazardous areas in support of planning seismic University in 1993 in Petroleum Geology. acquisition surveys, and assessment of environmental impact resulting from geophysical Robert R.F. Kinghorn is currently a Lecturer in the prospecting. This paper will review various Geology Department of Imperial College, University of techniques and methods of enhancing multispectral London. He has over 25 years experience in teaching and and multitemporal image data, and show specific research, principally in organic geochemistry, the examples of their application to petroleum exploration. 96 Downloaded from http://pubs.geoscienceworld.org/geoarabia/article-pdf/1/1/95/5406881/geo96.pdf by guest on 02 October 2021 Roger D. Abel is currently a the impermeable beds in non-cored wells. Porosity Topographer with Shell International and permeability maps based on minimum cut-off Petroleum Company with porosity values, and aerial distribution of the basal assignments in New Zealand, dolomite unit are providing the necessary geologic Holland and Oman. Roger also control for horizontal well placement. This will worked with Gardline Surveys, UK optimize depletion of recoverable hydrocarbon, as Hydrographic Surveyor, using both long- and short-radius horizontal drilling primarily in the North Sea from technology, from the Upper Arab-D reservoir at 1980 to 1982 and with Plowman, Abqaiq Field. Craven and Associates as Land Surveyor between 1978 and 1980. Roger holds a BSc Mahdi A. Abu-Ali has been with (Honors) in Land Surveying Sciences. Saudi Aramco for 11 years in R&D, exploration and recently reservoir W. Mark Tuttle graduated in 1983 development. His areas of interest with a Diploma in Engineering and include reservoir characterization in 1988 received his BSc in Geodetic and modeling, basin analysis, Engineering. He has ten year hydrocarbon generation and cummulative experience in migration, and oil-source rock surveying and mapping within the correlations. Mahdi is affiliated service and oil industries. Mark is with the AAPG, ACS and EAOG. a member of the Association of He holds a BSc in Industrial Chemistry from King Fahd Professional Engineers, Geologists University of Petroleum and Minerals and a MSc in and Geophysicists of Canada and Geochemistry from the Colorado School of Mines, USA. the Association of Canada Land Surveyors. Abdullah S. Al-Shamsi received Characterization of the Upper Arab-D his BSc in Geology from King Fahd University of Petroleum and Reservoir, Abqaiq Field, Saudi Arabia Minerals, Saudi Arabia in 1989. After graduation he joined Saudi Abu-Ali, Mahdi A.*, Abdullah S. Al-Shamsi, Aramco and worked as a carbonate Tarek A. Bin-Afif and George A. Grover Geologist in Ghawar field studying Saudi Aramco the Arab-D reservoir using cores The Upper Arab-D, or Zone-1 reservoir represents a and thin sections. In 1994 he went significant but little produced interval within the to Canada to work with Chevron larger Arab-D reservoir at Abqaiq Field. The Arab-D Canada Resources on a training assignment for nine is divided into 3 main reservoir zones with Zones-2 months. Now Abdullah is working on 3-D seismic and 3 contributing most of the oil production. The interpretation in Abqaiq field. Upper Arab-D is less than 30 feet thick, consists of a basal low-porosity dolomite to dolomitic limestone, Tarek A. Bin-Afif has been a medial high energy skeletal-peloidal grainstone/ employed by Saudi Aramco since packstone reservoir facies, and an upper unit of his graduation from King Fahd interbedded dolomudstones, cryptalgalaminates and University of Petroleum and nodular-to-bedded anhydrites that generally grades Minerals in 1978 with a BSc degree upwards into massive anhydrite. Open hole logs in Geology. For the past four years, indicate high oil saturations, but flow meters reveal he has been involved in updating little to no contribution from Zone-1, regardless of geologic models in northern completion type in vertical wells. This necessitates Ghawar and Abqaiq fields in development of Zone-1 via long-radius (>1,000 feet support of reservoir management lateral section) and short radius (<1,000 feet) and simulation. horizontal wells to deplete recoverable oil, and to avoid contribution of water from Zone-2. George A. Grover is a Reservoir Successful development of the Upper Arab-D Geologist in the Geological Department requires detailed characterization, correlation and at Saudi Aramco. George was mapping of the basal dolomite unit, containing very previously a Research Geologist with thin (1 to 2 feet) impermeable beds within it. These Chevron Petroleum Technology beds are important in preventing cross-flow of water Company, La Habra, California (1985- from Zone-2, but are beyond the resolution level of 1990), and an Exploration Geologist open-hole logs.