大庆长垣以西地区复杂油水层成因及测井解释方法  

Origin of complex oil/field zones and logging interpretation method in the western area of Daqing placanticline

作　　者：文政[1] 徐广田[1] 葛百成[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2005年第2期100-102,i008,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：在对薄片、扫描电镜、压汞资料分析基础上, 采用核磁共振、岩电实验和数值模拟等手段, 分析研究了复杂油水层的主要成因。研究得出, 研究区复杂油水层主要成因一是储层孔隙结构复杂, 岩性细, 泥质含量高, 导致储层束缚水饱和度变化大; 二是泥浆侵入影响, 导致油层电阻率降低; 三是薄层受测井分辨能力的限制, 其测量值受层厚影响。在储层参数模型研究基础上, 建立并形成了侵入特征法、可动水分析法、电阻率交会法等解释方法, 有效提高了油水层解释符合率, 为勘探生产和储量评价提供了技术支持。Based on analyzing data from thin section,scanning electron micrograph and mercury injection,using nuclear magnetic resonance (NMR), rock-electr experiment and numerical simulation techniquess,etc. to analyze main origin of complex oil and water zones. The experiments show that the main origins of causing the oil and water zones complicated in the study area on the one hand is pore structure, fine particle size and shale content high,resulting in saturation of irreducible water of the reservoirs varying greatly, on the other hand is mud invasion influence, resulting in the reservoir receptivity decreasing, and the third is the thin bed is restricted by logging resolution, resulting in measure value influenced by the bed thickness. On the basis of studying reservoir parameter model, setting up and forming invasion water characteristic method, mobile water analyzing method and resistively intersection method, etc. interpretation methods, which effectively improving coincidence rate of oil and water interpretation and providing a technical support for exploration production and reserve evaluation.

关 键 词：孔隙结构 束缚水饱和度 泥浆侵入 测井解释 

分 类 号：TE272[石油与天然气工程—油气井工程]