Spatial Structure Characterization Technology and Engineering Practice of Ultra-deep Fault-Controlled Carbonate Reservoir
Han Jianfa ,
Sun Chong ,
Zhu Guangyou ,
Zhang Yintao ,
Li Guohui ,
Hou Jiakai ,
Li Hao ,
Ding Zhiwen
Affiliations
Han Jianfa
PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China ;
R&D Center for Ultra-deep Complex Reservoir Exploration and Development, China National Petroleum Corporation, Korla 841000, Xinjiang, China ;
Engineering Research Center of Ultra-deep Complex Oil and Gas Reservoir Exploration and Development, Xinjiang Uygur Autonomous Region, Korla 841000, Xinjiang, China
Sun Chong
PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China ;
R&D Center for Ultra-deep Complex Reservoir Exploration and Development, China National Petroleum Corporation, Korla 841000, Xinjiang, China ;
Engineering Research Center of Ultra-deep Complex Oil and Gas Reservoir Exploration and Development, Xinjiang Uygur Autonomous Region, Korla 841000, Xinjiang, China
Zhu Guangyou
School of Geoscience, Yangtze University, Wuhan 430100, China ;
Research Institute of Petroleum Exploration and Development, Beijing 100083, China
Zhang Yintao
PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China ;
R&D Center for Ultra-deep Complex Reservoir Exploration and Development, China National Petroleum Corporation, Korla 841000, Xinjiang, China ;
Engineering Research Center of Ultra-deep Complex Oil and Gas Reservoir Exploration and Development, Xinjiang Uygur Autonomous Region, Korla 841000, Xinjiang, China
Li Guohui
PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China ;
R&D Center for Ultra-deep Complex Reservoir Exploration and Development, China National Petroleum Corporation, Korla 841000, Xinjiang, China ;
Engineering Research Center of Ultra-deep Complex Oil and Gas Reservoir Exploration and Development, Xinjiang Uygur Autonomous Region, Korla 841000, Xinjiang, China
Hou Jiakai
Research Institute of Petroleum Exploration and Development, Beijing 100083, China
Li Hao
School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China
Ding Zhiwen
PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China ;
R&D Center for Ultra-deep Complex Reservoir Exploration and Development, China National Petroleum Corporation, Korla 841000, Xinjiang, China ;
Engineering Research Center of Ultra-deep Complex Oil and Gas Reservoir Exploration and Development, Xinjiang Uygur Autonomous Region, Korla 841000, Xinjiang, China
In the context of actively promoting deep geological engineering, ultra-deep fault-controlled fractured carbonate reservoirs have become a focal point in oil and gas exploration and development. Precise interpretation of ultra-deep strike-slip faults, internal configuration modeling of fractured reservoirs, assessment of reserves sculpted by fault control, efficient well deployment, and enhanced recovery have emerged as crucial scientific challenges and technological barriers in increasing reserves and production in the ultra-deep domain. This study comprehensively constructs fracture structural analysis techniques utilizing regional stress field research, outcrop analysis, three-dimensional seismic interpretation, and physical modeling; this is based on dynamics, kinematics, and geometry, as well as different stages, grades, properties, zones, and layers. It elucidates the vertical layering and lateral segmentation characteristics of strike-slip faults, revealing geological laws governing reservoir control, storage, and hydrocarbon accumulation, ultimately leading to the discovery of billion-ton-level mega oilfields in ultra-deep fault-controlled fractured reservoirs. Based on dynamic/static data, the internal configuration of fault-controlled fractured reservoirs is finely delineated, and a quantitative characterization of reservoirs is achieved through the integration of well‒seismic data, facilitating efficient well deployment and reservoir reserve assessment. This approach has supported the discovery and realization of billion-ton-level oil and gas reserves in the rich oilfields. Leveraging the quantitative characterization of fault-controlled reservoirs, targeted strategies to improve recovery rates are proposed, driving the efficient development of 5×106-ton mega oilfields, thereby establishing a paradigm for increasing reserves and production in ultra-deep fault-controlled carbonate reservoirs. This study could serve as a reference for similar oil and gas reservoir development in China.
