石油地质与工程2025，Vol.39Issue(3)：8-15,8.
结构梯度张量裂缝检测技术在致密砂岩气藏中的应用
Application of structural gradient tensor fracture detection technology in tight sandstone gas reservoirs:a case study of Shengbei structural belt in the Taibei Sag of the Turpan-Hami Basin
摘要
Abstract
The reservoirs of the Sanjianfang Formation in the Shengbei structural belt of the Taibei Sag in the Turpan-Hami Basin are tight,and the reservoir type is tight sandstone gas reservoir.The development and evaluation face problems such as low production from vertical well fracturing stimulation,large variations in production and rapid decline from horizontal well fracturing stimulation,and unclear understanding of the laws governing the control of faults on oil and gas migration,accumulation,and reservoir formation.Based on the post-stack pure wave migration data of 3D seismic,combined with data such as drilling coring,a-nalysis and testing,and logging,through the structural gradient tensor fracture detection technology,small faults,fractures,planar fault systems,and special lithologic bodies are identified and their boundaries are predicted.The study of the fault and fracture system is carried out to determine the degree of fracture devel-opment.The results show that frequency extension and fault enhancement technologies for the original seis-mic profile are conducive to the identification of fault points,and the interpretive processing of the original seismic data through anisotropic diffusion filtering and fault enhancement technologies is conducive to the i-dentification of small and medium-scale faults.Using this technology,the favorable area for fracture inten-sity development with an area of 718.7 km2 is extracted along the top surface of each sand group.The pre-diction results are consistent with exploration practices,which provides a good guidance for the efficient de-velopment of the tight sandstone gas reservoir of the Sanjianfang Formation in the Shengbei structural belt.关键词
吐哈盆地/胜北构造带/三间房组/结构梯度张量/裂缝检测Key words
Turpan-Hami Basin/Shengbei structural Belt/Sanjianfang Formation/structural gradient ten-sor/fracture detection分类
地质学引用本文复制引用
谢佃和,李臻,刘俊田,郝巍,孙鑫鑫,杨统和..结构梯度张量裂缝检测技术在致密砂岩气藏中的应用[J].石油地质与工程,2025,39(3):8-15,8.基金项目
中国石油天然气股份有限公司科技项目"吐哈盆地风险勘探领域和目标研究、工程技术攻关及现场试验"(2023YQXNCS001-09). （2023YQXNCS001-09）
