石油科学通报2024，Vol.9Issue(6)：899-910,12.DOI:10.3969/j.issn.2096-1693.2024.06.069
超深断控型油气藏差异富集程度分析方法及应用
Analysis method and application of differential enrichment of ultra-deep fault-controlled reservoirs:A case study of the Fuman Oilfield in the Tarim Basin
摘要
Abstract
The fault-controlled fracture-cavity type oil and gas reservoir plays an important role in the exploration and develop-ment of oil and gas in the carbonate rocks of the Tarim Basin.Research shows that there are significant differences in the oil and gas development effects in different fractures or different segments of the same fracture in the Fuman Oilfield,leading to unclear oil and gas accumulation characteristics and affecting the efficient development of ultra-deep layers.This paper takes the strata from the Yijianfang Group to the Yingshan Group in the Fuman Oilfield of the Tarim Basin as an example,using drilling data,high-quality 3D seismic data,and production dynamic data to study the control effect of ultra-deep strike-slip faults on the degree of oil and gas accumulation.The results show that:(1)The oil and gas accumulation in the fault zone is mainly controlled by three factors:the contact relationship between the fault and the source rock,the fault's role as a migration pathway,and the size of the reservoir.(2)By comparing and analyzing the drilling production results,the paper establishes a quantitative relationship between the connectivity of the source,the fault's guiding role,the scale of the reservoir,and oil and gas accumulation,improving a set of evaluation and calculation methods for the differentiated accumulation degree of ultra-deep fault-controlled oil and gas reservoirs.(3)The source connectivity of deep and large faults is an important factor affecting the accumulation degree of fault-controlled oil and gas reservoirs.The higher the oil and gas accumulation,the better the contact between the fault and the source rock,the better the vertical connectivity of the migration pathway,and the larger the effective reservoir scale. This paper proposes a new understanding of the"source connectivity"analysis of fractures in fault-controlled fracture-cav-ity reservoirs and develops an evaluation technique for ultra-deep carbonate"fault-controlled oil and gas reservoir formation".Using this method,the oil and gas accumulation degree of the FI 19 fault zone in the Fuman Oilfield was analyzed,with a match rate of 92%to the well data.This method has good reference value for the further development practice of other oilfields in the Tarim Basin.关键词
走滑断裂带/构造样式/油气垂向运移/断裂疏导/通源性/油气富集Key words
strike-slip fault zone/structural style/vertical transport of oil and gas/fault-controlled fluid migration/source-con-nectivity/oil and gas enrichment分类
能源科技引用本文复制引用
常少英,李世银,王孟修,乔俊程,杜一凡,王彭..超深断控型油气藏差异富集程度分析方法及应用[J].石油科学通报,2024,9(6):899-910,12.基金项目
中国石油天然气集团有限公司基础性前瞻性重大科技专项《叠合盆地中下组合油气成藏与保持机制研究》(2023ZZ02)和中国石油天然气集团有限公司碳酸盐岩专项项目"碳酸盐岩油气富集规律及有利区带研究"(2023ZZ16-01)联合资助 （2023ZZ02）
