CNOOC Ener Tech-Drilling & Production Co.

为了解决鄂尔多斯盆地神府南区煤储层埋深大、应力高导致压裂施工难度大难题。在分析研究区煤层气资源条件基础上,基于岩石力学理论及破裂准则,利用煤岩力学实验、测井煤体结构及地应力解释、地震属性裂缝检测对靶区煤储层压裂工程地质条件进行分析,多因素叠合预测地质工程一体化有利区。结果显示I、Ⅱ类有利区主要位于研究区西侧及东北侧,呈条带状分布,是未来深部煤层气勘探开发的有利目标。

In order to solve the difficult problem of fracturing construction caused by deep buried depth and high stress of coal reservoir in Shenfu South Area, east of Ordos Basin. Based on the analysis of deep coalbed methane(CBM) resource conditions in the study area. According to rock mechanics theory and fracture criterion, the fracturing engineering geological conditions of the coal reservoir in the target area are analyzed by means of coal rock mechanics experiment, coal body structure and in-situ stress logging interpretation, and seismic attribute fracture detection. The favorable area of geological engineering integration is predicted by multi factor superposition, the result shows that Class I and Class II favorable areas are mainly located in the west and northeast of the study area, which are distributed in strips, and are favorable targets for deep CBM exploration and development.

1 研究区地质概况
2 深部煤层气资源条件
2.1 煤储层基本特征
2.2 保存条件
2.3 资源条件
3 煤储层工程地质条件
3.1 煤体结构
3.2 岩石力学特征
3.3 现今地应力特征
3.4 裂缝发育特征
4 一体化有利区预测
5 结论与建议

周龙刚.鄂尔多斯盆地神府南区深部煤层气有利区预测[J].山东煤炭科技,2023,41(06):173-176.