库车坳陷博孜井区巴什基奇克组暗色纹层及测井响应  

Dark Laminae of Bashijiqike Formation and Well Logging Response in Bozi Area of Kuqa Depression,Tarim Basin

作　　者：周鹏[1] 谢亚妮[1] 能源[1] 孙迪[1] 王斌[1] 张星[1] 

机构地区：[1]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000

出　　处：《新疆石油地质》2016年第3期286-290,共5页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX05003-004);国家973项目(2011CB201100)

摘　　要：塔里木盆地库车坳陷博孜井区巴什基奇克组岩心中发育大量的暗色纹层。综合应用岩心、薄片、重矿物、成像测井等资料,对Bz102井暗色纹层的发育特征及对储集层的影响进行研究,建立了暗色纹层的高分辨率FMI测井识别模板。研究表明,暗色纹层主要由博孜井区近物源而形成的磁铁矿富集层组成,暗色纹层的存在降低了储集层的孔隙度和渗透率;在Bz102井中共识别出169个暗色纹层发育段,测试射孔井段的75%均位于纹层密集发育段,是Bz102井低产的重要因素。Large numbers of dark laminae occur in the core samples of Bashijiqike formation in Bozi area of Kuqa depression in Tarim ba-sin.Taking Well Bz102 as an example,this paper studies the development characteristics of the dark laminae and the impacts on the reser-voir by using core samples,thin sections,heavy minerals and imaging logging data,and develops the high-resolution imaging logging modelfor recognizing the dark laminae.Study shows that the dak laminar in Bozi area are mainly resulted from magnetite enrichment due to near-by provenance.The existence of dark laminae decreases the porosity and permeability of the reservoir.In Well Bz102,169 dark laminatedlayers have been recognized,and 75% of perforated intervals in test located in the intensive sections of dark laminae.So,the decrease ofvertically connecting ability of the reservoir could be an important factor of low productivity in this well.

关 键 词：塔里木盆地 库车坳陷 博孜井区 巴什基奇克组 暗色纹层 磁铁矿 FMI测井 

分 类 号：TE112.24[石油与天然气工程—油气勘探]