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characteristics and Hydrocarbon Potential of Mesozoic Strata in Eastern Pearl River Mouth Basin, Northern South China Sea

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Journal of China University of Geosciences 2009年第1期20卷 117-123页

作者：郝沪军张向涛尤洪庆汪瑞良 Institute of CNOOC Ltd. Shenzhen Guangzhou 510240 China

The well LF35-1-1 in the eastern Pearl River Mouth basin （PRMB） of the northern South China Sea revealed unmetamorphosed Middle-Late Jurassic neritic-bathyal sediments and Cretaceous fluvial-lacustrine sediments. Three tectonic movements were identified in Late Jurassic to Early Cretaceous, late Early Cretaceous, and Late Cretaceous to Paleocene, respectively. The Late Jurassic marine facies mainly contain the hydrocarbon source and reservoir-seal assemblages, providing a main exploration target.

关键词： Pearl River Mouth basin Mesozoic strata geologic characteristics petroleum potential.

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Development of unconventional gas and technologies adopted in China

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Energy Geoscience 2020年第1期1卷 55-68页

作者： Yang Li De-Hua Zhou Wei-Hong Wang Ting-Xue Jiang Zhao-Jie Xue China Petroleum&Chemical Corporation Beijing100728China Sinopec Exploration&Production Research Institute Beijing100083China Sinopec Research Institute of Petroleum Engineering Beijing100101China

This study analyses the geological characteristics and development progress of unconventional gas in China,summarizes the development theories and technologies,discusses the prospects and challenges of unconventional gas development,and puts forward the future trends of development *** technologies of unconventional gas development are available in *** gas development technologies include comprehensive geological evaluation,volume fracturing of cluster horizontal wells under complex stress conditions,and factory-like operation of horizontal wells in complex mountainous area et *** gas development technologies include fluid identification and quantitative prediction,optimization of well patterns,multi-layer fracturing in vertical well,staged fracturing in horizontal well,and drainage gas *** methane(CBM)development technologies include the prediction of medium-high-and medium-low-rank CBM enrichment areas,rate-variable hydraulic fracturing,and quantitative drainage recovery with five stages,three pressures,and four *** economic and effective development of unconventional gas,further efforts should be ***,intensified studies should be conducted on high-precision prediction and fine characterization technologies of high-quality shale reservoirs in deep marine,continental,and transitional ***,key theories and technologies such as fast drilling and completion of wells with long laterals as well as large-scale volume fracturing should be developed to improve well ***,new technologies such as multiple well-type development,fluid injection,and nano-flooding should be developed to enhance the ***,effort should be made to identify the accumulation mechanism and large-scale effective development technologies for ***,the application of large amounts of data and artificial intelligence in the entire process of unconventional gas development should be considered to reduce the dev

关键词： Unconventional gas geologic characteristics Development history Integrated development technology

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An overview of the geology and production of the Fuling shale gas field,Sichuan Basin,China

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Energy Geoscience 2020年第3期1卷 147-164页

作者： Haikuan Nie Donghui Li Guangxiang Liu Zhiyuan Lu Hu Wang Ruyue Wang Guangrong Zhang State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing100083China Sinopec Petroleum Exploration and Production Research Institute Beijing100083China Sinopec Key Laboratory of Shale Oil/Gas Exploration&Production Beijing100083China China University of Geosciences(Beijing) Beijing100083China

The Fuling shale gas field in China is the largest shale gas field as well as the largest of its type discovered in any Lower Paleozoic *** this study,the geology and production of the upper and lower gas layers in the Fuling shale gas field are evaluated in terms of structure,shale quality,fault,initial production,and estimated ultimate recovery(EUR).The shale in the lower gas layer of the Jiaoshiba anticline is a high-quality reservoir,where the space is dominated by organic pores in kerogen,and the gas content is *** shale gas wells reveal relatively high initial production and ***,the shale in the upper gas layer of the Jiaoshiba anticline has reservoir space mainly composed of clay mineral pores and organic pores within bitumen,and the gas content is *** terms of structure,primary gas migration may occur in the upper gas layer,resulting in free gas accumulation in the structural high,where the development effects are generally better than those in the structural *** lower gas layer in the Pingqiao anticline,is the main interval for shale gas accumulation and development due to the high-quality *** the influence of faults,the efficiency of exploration wells emplaced on top of the anticline is much lower a compared with those in the *** residual synclines close to the Sichuan Basin,including the Baima and Baitao anticlines,are characterized by more recent uplifts,larger area,greater distance from the deep and large faults,and early fracture ***,we recommend that the shale gas exploration and development should be carried out preferentially in areas close to the center of the residual synclines,featuring relatively high-pressure coefficient and moderate burial depth.

关键词： geologic characteristics Production features Longmaxi formation Fuling shale gas field Sichuan basin

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