Oil occurred in large areas with depth up to 8 000 m in Halahatang area of the Tarim Basin, and mainly along the strike-slip fault zones. Through the exploration and development data, and single well analysis, it is demonstrated that the strike-slip faults control the distribution and enrichment of oil in Halahatang area. The oil and gas are stripped distributed along the majoe fault zones within the distance of 1.8 km to fault cores, and high efficient wells are mainly distributed within 600 m to major fault. Fault type, size and nature, particularly of the size of the fault zone, play an important impact on hydrocarbon enrichment, and resulted in the oil and gas distribution segmentation. High efficient wells generally have a combination of five elements such as regional nose-like structure background, close to the oil-source fault, localized structure high, large scale reservoir, better vertical and lateral sealing. These suggest the carbonate oil resources are fault controlled and quite different from the reservoir-controlled resources. The fault controlling effects on the oil accumulation and enrichment are significant for the oil exploration and development in super-depth basin.
Zhang Yintao Deng Xingliang Wu Guanghui Xie Zhou Wan Xiaoguo Yang Tianyi. The oil distribution and accumulation model along the strike?slip fault zones in Halahatang area, Tarim Basin[J]. Chinese Journal of Geology, 2020, 55(2): 382-391.