盐水钻井液侵入条件下低幅度-低电阻油层的测井识别与评价  

Logging identification and evaluation of low-amplitude and low-resistance oil zones intruded by saline drilling fluid

作　　者：李长喜[1] 许坤 史卜庆 

机构地区：[1]中国石油勘探开发研究院 [2]中国石油咨询中心 [3]中国石油天然气勘探开发公司

出　　处：《中国海上油气》2008年第6期373-378,共6页China Offshore Oil and Gas

基　　金：中国石油天然气股份有限公司攻关项目(Ktqq-2005-036)部分研究成果

摘　　要：F区块白垩系AG组F4构造油气藏圈闭幅度低,多为低电阻油层。研究了盐水钻井液侵入条件下低电阻油层的成因,提出了低幅度-低电阻油层测井识别方法与定量评价方法。应用本文方法,有效地提高了研究区含油饱和度的计算精度和低电阻油气层识别与定量评价的可信度。The F4 structural trap in Cretaceous AG formation of F block is low in amplitude and predominated by low-resistance oil zones. The origin of low resistance was researched for oil zones intruded by saline drilling fluid, by which a methodology of logging identification and quantitative evaluation was developed for oil zones with low amplitude and resistance. By applying this methodology, the calculaled accuracy of oil saturation and the reliability of identifying and quantitatively evaluating low-resistance hydrocarbon zones are effectively improved in the study area.

关 键 词：盐水钻井液侵入 低幅度油气藏 低电阻油层 测井识别 定量评价 

分 类 号：P618.130.2[天文地球—矿床学] TQ534.9[天文地球—地质学]