Spatial characterization and quantitative description technology for ultra-deep fault-karst reservoirs in the Shunbei area

被引：0
|
作者：
Liu B. [1 ]
Qi L. [1 ]
Li Z. [1 ]
Liu J. [1 ]
Huang C. [1 ]
Yang L. [1 ]
Ma L. [2 ]
Gong W. [1 ]
机构：
[1] Sinopec Northwest Oil Field Company, Urumqi, 830013, Xinjiang
[2] Sinopec Geophysical Research Institute, Nanjing, 210094, Jiangsu
来源：
Liu, Baozeng (lbz.xbsj@sinopec.com) | 1600年 / Science Press卷 / 41期
关键词：
Carbonate rock; Fault-karst; Shunbei area; Tarim Basin; Ultra-deep strata;
D O I：
10.7623/syxb202004004
中图分类号：
学科分类号：
摘要：
Fault-karst reservoirs are developed in carbonate rocks of the Shunbei area, Tarim Basin. Fault-karst is characterized by large vertical depth and strong internal heterogeneity, and its distribution is mainly controlled by deep strike-slip fault belts. The reservoir spaces of fault-karst are mainly caves, cavities and cracks. The development of fault-karst reservoir is different in different levels of fault belts and different sections of the same fault belt. How to accurately characterize the spatial position, volume and connectivity of fault-karst has become the main difficulty in the exploration and development of fault-karst reservoirs. Technically, based on the seismic reflection characteristics of forward modeling and log-seismic data, in combination with gradient structure tensor analysis, automatic fault extraction technology for enhancing coherence processing, and phased wave impedance inversion technique, the seismic identification model of fault-karst reservoir can be used to describe its boundary and internal characteristics, and conduct the spatial characterization and reserve calculation. The results can be verified by single well production and dynamic reserves. © 2020, Editorial Office of ACTA PETROLEI SINICA. All right reserved.
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页码：412 / 420
页数：8
相关论文
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