斜井中各向异性储层阵列侧向测井正演响应特性

发布时间：2018-02-14 18:50

本文关键词： 斜井阵列侧向测井各向异性井斜角有限元正演　出处：《断块油气田》2017年05期 　论文类型：期刊论文

【摘要】：阵列侧向测井是在常规双侧向测井仪器的基础上发展起来的一种新型测井仪器,可提供6种不同探测深度的电阻率值。利用有限元数值模拟技术对阵列侧向测井响应进行了模拟,研究了斜井状态下仪器响应随井斜角、储层各向异性系数变化的特征。研究表明:当井斜角小于30°时,R_1,R_2受影响较小;井斜角大于30°,阵列侧向测井响应普遍受井斜角影响较大;井斜角小于30°时,R_3,R_4,R_5基本不受储层各向异性特征的影响;井斜角大于30°,R_3,R_4,R_5随各向异性系数变化明显;探测深度较浅的R_1,R_2受储层各向异性特征影响明显。
[Abstract]:Array lateral logging is a new type of logging tool developed on the basis of conventional dual lateral logging tools. The resistivity values of 6 different detection depths can be provided. The response of array lateral logging is simulated by finite element numerical simulation technique, and the instrument response with inclined angle is studied in the state of inclined well. The characteristics of reservoir anisotropy coefficient change. The results show that when the well inclination angle is less than 30 掳, the effect of S / R _ (1) / R _ (2) is small, the well inclination angle is greater than 30 掳, and the response of array lateral logging is generally influenced by well inclination angle. When the slope angle of the well is less than 30 掳, it is basically not affected by the anisotropic characteristics of the reservoir; the slope angle of the well is greater than 30 掳R3 / R4 / R4 / RSP _ 5 and the variation of the anisotropy coefficient is obvious; and the R _ 1 / R _ (4) R _ (2) with a shallow exploration depth is obviously influenced by the anisotropic characteristics of the reservoir.
【作者单位】：长江大学油气资源与勘探技术教育部重点实验室;长江大学地球物理与石油资源学院;
【基金】：国家自然科学基金项目“地层条件下富有有机质页岩电磁响应机理与应用基础研究”(U1562109)
【分类号】：TE151

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