摘要
对辽河油区大民屯凹陷前进潜山带太古宇潜山内幕岩性、储层特征进行了详细总结、综合分析,厘定了岩性以及储层的识别标准。在此基础上通过储层产能影响因素分析认为,"优势岩性"序列中岩性排列顺序决定了储层发育程度,研究区内普遍发育的混合岩为好的储集岩,而片麻岩以及黑云变粒岩为差储集岩;钻井液性质、完井井型以及后期的压裂改造作用对储层产能的影响较大,建议该区在后续开发过程中在最好的"优势岩性"段采用水平井开发可以获得高产油气流,在相对较差的"优势岩性"采用直井压裂开发同样可以获得工业产能。
Based on detailed summary and comprehensive analysison archaeozoic era buried hill inside lithology and reservoir characteristics in Liaohe oilfield Damintun depression Qianjin buried hill,this paper redefinied the identification criteria of lithology and reservoir. The affecting factosr analysis on res-ervoir capacity has shown that lithologic arrangement in the 'dominant lithology' order determines the degree of reservoir development,generally developed mix rocks are good reservoir rocks,while gneiss and biotite granulite are worsereservoir rocks. Drilling fluid type,completion well type,as well as the late fracturing reformation has comparatively impact on reservoir capacity. In the paper suggested in the follow-up the development process,to apply horizental wellexploiting in the best of ' dominant lithology' segment to gain high-yield oil and gas,and to apply vertical well fracturing exploiting in the relatively poor 'dominant lithology'segment as well as having equal access to industrial capacity.
出处
《石油地质与工程》
CAS
2010年第1期7-11,共5页
Petroleum Geology and Engineering
基金
中国石油天然气股份有限公司重大科技项目"辽河探区有利预探区带综合评价和目标评价"(项目编号20060105)
关键词
优势岩性
储层识别
变质岩潜山
内幕油气藏
产能影响因素
dominant lithology
reservoir identification
metamorphic buried hill
insider reservoir
productivity factors
