摘要
为探索走滑断裂破碎带储集空间发育特征和形成机理,综合应用野外露头、遥感影像和岩心测试资料,对郁江走滑断裂带北部储集空间进行识别刻画和量化分析,并探讨其发育主控因素。结果表明:郁江走滑断裂带北部破碎带在平面上可分为北部张扭段和南部压扭段,不同段储集空间发育特征存在差异,张扭段裂缝开度更大,压扭段裂缝长度、裂缝线密度、破碎区面积和洞穴面积更大,总体上,压扭段储集空间发育规模相对较大;走滑断裂带构造应力是决定优势储集空间发育的外部因素,岩层厚度和岩石矿物组成是控制储集空间发育的内部因素,岩层厚度大于1 m且碳酸钙含量低于70%的碳酸盐岩经压扭作用改造后,可形成缝洞型储集体有利发育区。
In order to understand the development characteristics and formation mechanism of reservoir space in the crushed zone of a strike-slip fault,based on the field outcrops,remote sensing images,and core testing data,the reservoir space in the northern Yujiang strike-slip fault zone was identified and quantified,and its main controlling factors were discussed.The results show that the crushed zone of the northern Yujiang strike-slip fault zone can be divided into a northern tenso-shear segment and a southern compresso-shear segment in a plane view.The two segments are different in the reservoir space development characteristics.The tenso-shear segment has larger fracture aperture,while the compresso-shear segment has larger fracture length,fracture density,fractured area,and cave area.Overall,the com-presso-shear segment has larger reservoir space.The tectonic stress of the strike-slip fault zone is the external factor determining the devel-opment of dominant reservoir space,while the thickness and mineral composition of rocks are the internal factors controlling reservoir space development.The carbonate rocks with a thickness greater than 1 m and a calcium carbonate content of less than 70%can be re-worked by compresso-shear process to form favorable areas for the development of fractured-vuggy reservoirs.
作者
鲍典
胡文革
曹飞
彭小平
廖世禧
潘琳
王婋
BAO Dian;HU Wenge;CAO Fei;PENG Xiaoping;LIAO Shixi;PAN Lin;WANG Xiao(Sinopec,a.Research Institute of Exploration and Development,Northwest Oilfield Company,Urumqi,Xinjiang 830011,China;Northwest Oilfield Company,Urumqi,Xinjiang 830011,China;School of Resources,China University of Geosciences,Wuhan,Hubei 430074,China)
出处
《新疆石油地质》
CAS
CSCD
北大核心
2024年第2期172-180,共9页
Xinjiang Petroleum Geology
基金
中国石化科技部项目(P21064-1)。
关键词
郁江走滑断裂带
破碎带
张扭段
压扭段
断控缝洞型储集体
储集空间
发育特征
主控因素
Yujiang strike-slip fault zone
crushed zone
tenso-shear segment
compresso-shear segment
fault-controlled fractured-vuggy reservoir
reservoir space
development characteristic
main controlling factor
