摘要
研究区G区地质构造特征复杂,多种沉积微相发育,砂体横向连续性差,油水识别困难。利用沉积微相与含油性有很好相关性的特点,以G区地质和地层倾角的解释结果为基础,结合储层岩石物性分析资料,分析了该区腾格尔组辫状河道和分流河道2种主要沉积微相的四性关系特征。利用非电法资料区分渗透层、致密层,并利用双感应-八侧向曲线的侵入特征建立了解释标准。通过对多口井的试油跟踪,取得良好的应用效果,提高了解释符合率。该方法解释精度较高,具有较高实用价值。
It is difficult to identify oil and water layers in region G because ot its complex geological characteristics, coexistence of different sedimentary facies and poor sand bed continuality in horizontal direction. Based on data interpretation of dual induction ＆ laterolog 8, geology back- ground in region G, and combining with the physical properties of reservoir, analyzed are the reservoir properties of two kinds of sedimentary facies of group Tengger-fan delta with braided deposition and distributary watercourse. Penetrating layer and compact layer are distinguished by using non-electricity well logging method and an interpretation standard is built by analyzing the invasion properties of dual induction and focused resistivity curves. The practical well drilling result shows that this method works well in identifying oil and water layer, and is worth popularizing in oilfield.
出处
《测井技术》
CAS
CSCD
2008年第6期525-528,533,共5页
Well Logging Technology
关键词
测井解释
沉积微相
含油性
侵入特性
油水层识别
log interpretation, sedimentary facies, oil-bearing property, invasion property, payzone identification
