沧东凹陷致密油岩性识别方法研究  

Study on Identification Methods of Tight Oil Lithology in Cangdong Sag

作　　者：刘国全[1] 贾丽[1] 李凤霞[1] 刘娟霞[1] 周宝仙[1] 

机构地区：[1]中油大港油田分公司,天津300280

出　　处：《特种油气藏》2014年第3期18-22,151,共5页Special Oil & Gas Reservoirs

基　　金：中国石油天然气股份有限公司重大科技专项"大港油区大油气田勘探开发关键技术研究"(2012E-06)

摘　　要：针对沧东凹陷孔二段源储互层型致密储层岩性识别的难点,以钻井取心资料岩性识别为基础,在岩心刻度测井曲线的基础上,利用散点图技术、交会图技术及ECS测井进行岩性的识别,形成了源储互层型致密油岩性识别的有效方法。利用该方法,对沧东凹陷200多口老井进行了岩性识别,并指导了该区勘探目标优选,近2a部署探井13口,均见到良好的油气显示,效果十分显著。In view of the difficulties in identifying lithology of intercalated source and reservoir rocks in Member Kong2 tight reservoir of Cangdong sag,lithology is identified by means of scatter plotting,cross plotting and ECS logging on the basis of core calibrated log curves and lithology identification of drilling cores,establishing an effective methodology for lithology identification of the intercalated source /reservoir rocks. By using the methodology,lithology identification has been performed in over 200 old wells in the Cangdong sag,providing guidance for the selection of exploration targets in the area. Thirteen exploration wells deployed in the past two years had all obtained good oil and gas shows,demonstrating good results.

关 键 词：沧东凹陷 致密油 岩性识别 交会图技术 ECS测井新技术 

分 类 号：TE122.3[石油与天然气工程—油气勘探]