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Exploration Strategies for complex fault block Reservoirs in the Subei Basin

Petroleum Science 2007年第1期4卷 30-35页

作者： Liu Xiaoping Yang Xiaolan Liu Yurui Basin and Reservoir Research Center China University of Petroleum Beijng 102249 China Key Laboratory for Hydrocarbon Accumulation Mechanism under Ministry of Education China University of Petroleum Beijing 102249 China China University of Geosciences Beijing 10083 China Jiangsu Oilfield Branch Company SINOPEC Yangzhou Jiangsu 225009 China

The geological background of the Subei basin is that of small relief subsidence, low geothermal gradient, multi-sedimentary hiatuses, intense reconstruction of the basin, frequent magmatic activity, and a unique combination of source rock and reservoir. This geological background resulted in characteristics such as many small fault blocks, multiple oil-bearing formations, scattered oil distribution, mini- to small-sized reservoirs, and difficulties in exploration. Aimed at such characteristics, an effective exploration strategy was adopted, and the oil reserves, production and economic benefits of the Jiangsu oilfield were significantly increased. This exploration strategy included understanding the hydrocarbon generation mechanism of source rocks, progressive evaluation of oil resources, comprehensive research on the faulted systems, the distribution of oil reservoirs and their controlling factors. The techniques used included integration of acquisition, processing and interpretation with 3-D seismics as the core technology, trap description and evaluation, directional drilling and cluster drilling, integration of cuttings logging, gas chromatographic logging and geochemical logging, and integration of early reservoir description and progressive exploration and development. This strategy could be guidance for other complex fault blocks.

关键词： complex fault block petroleum exploration technical strategy Subei Basin

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Farewell faults in complex fault blocks with multi-technological integration

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Journal of China University of Mining and Technology 2008年第2期18卷 229-231页

作者： YANG Guang-lin HU Xiao-hui YAN Jing-hua Scientific Research Institute of Exploration and Development Zhongyuan Oilfield Company Sinopec Puyang Henan 457001 China School of Energy Resources China University of Geosciences Beijing 100083 China

In the middle and second half of oilfield development,further exploration and development of petroleum reservoirs in complex fault blocks are major *** on the characteristics of fully developed farewell faults in the Wenweigu oil field and the data from 3D earthquakes,RFT,HDT and other techniques,farewell faults and their distribution were *** of the fault blocks has been provided and the precision of describing the farewell faults *** technology of farewell faults has applied these methods in this region.

关键词： farewell fault complex fault block stratigraphic correlation earthquake RFT

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维普期刊数据库

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Distribution pattern of deltaic sand bodies controlled by syn-depositional faults in a rift lacustrine basin

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Petroleum Exploration and Development 2020年第3期47卷 572-584页

作者： DOU Luxing HOU Jiagen ZHANG Li LIU Yuming WANG Xixin WANG Jian WU Gang State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China College of Geosciences Yangtze UniversityWuhan 430100China Exploration and Development Research Institute Shengli Oilfield CompanySINOPECDongying 257015China

Take the lacustrine delta in the second member of Paleogene Shahejie Formation in block Wang43, Dongying depression, Bohai Bay Basin as an example, the deposition architectural characteristics of lacustrine deltaic sand bodies controlled by syn-depositional faults in complex fault blocks of rift basin are examined from the aspect of the tectonic-deposition response, using cores, well logs and three-dimensional seismic data. The small-scale syn-depositional faults in complex fault blocks are dense and different in dip, the activity along the strike of syn-depositional fault varies in different positions, and all these control the sedimentary process of deltaic sand bodies. Influenced by syn-depositional faults, the deltaic distributary channel is more likely to pass through the position with weak fault activity, and be deflected or limited at the position with strong fault activity. In downthrown side of a single syn-depositional fault or micro-graben areas, sand bodies increase in thickness and planar scale, and sand bodies of multiple stages are likely to stack over each other vertically. In micro-horst areas controlled by syn-depositional faults, the sand bodies decrease in abundance, and appear in intermittent superimposed pattern vertically. This study can provide new research ideas and theoretical basis for exploration and development research in complex fault blocks.

关键词： Bohai Bay Basin Dongying depression Paleogene Shahejie Formation complex fault block small-scale fault syn-depositional fault delta

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