煤层气水力压裂微地震监测技术在鄂尔多斯盆地东部M地区的应用  

Microseismic Monitoring Technology of Coalbed Methane Hydraulic Fracturing in Baode Well Areas

作　　者：刘博[1] 徐刚[1] 杨光[2] 容娇君[1] 

机构地区：[1]中国石油集团东方地球物理勘探有限责任公司新兴物探开发处,河北涿州072751 [2]中国石油大庆油田有限责任公司井下作业分公司,黑龙江大庆163453

出　　处：《测井技术》2017年第6期708-712,共5页Well Logging Technology

摘　　要：为探索研究二叠系下统太原组和山西组煤系地层水力压裂效果,以鄂尔多斯盆地东部M地区煤系地层太原组和山西组为例,以微地震井中监测为技术手段,实时监测压裂效果,结合微地震事件属性特征分析人工裂缝网络连通性,解决复杂区域裂缝网络控制问题,为煤系地层水力压裂过程中压裂方案设计与调整提供依据,并对施工过程质量控制提供依据。现场实施取得良好的效果,实时调整压裂方案,为煤系地层水力压裂和储层评价提供了依据和技术保障;利用井间应力干扰可以促成大范围裂缝带的形成和沟通,形成更大的裂缝体积和渗流通道,对产能的改善作用更加明显,提高开发效率。In order to study lower Permian Taiyuan and Shanxi group strata hydraulic fracturing effect,based on Taiyuan and Shanxi formation in east Ordos basin,M area,the microseismic monitoring technology is used to monitor the hydraulic fracturing effect in real-time.Combined with the microseismic events attributes analysis of artificial fracture network connectivity,the problem of controlling the complex regional fracture network is solved.It provides basis for the fracturing scheme design and adjustment in the process of hydraulic fracturing of the coal strata,and the basis for the quality control of the construction process.The results show that the method could be used for hydraulic fracturing and reservoir evaluation of coal strata.Simultaneously,the stress interference between the wells may help form and communicate large scale fracture zones,so,the greater crack volume and flow channel could improve the production capacity obviously and efficiency of the oilfield development.

关 键 词：水力压裂 微地震 裂缝监测 压后评估 实时评价 煤层气 

分 类 号：P631.84[天文地球—地质矿产勘探]