微地震技术评价中牟区块体积压裂的效果  

Micro-seismic technique evaluation of the effect of volumetric fracturing in Zhongmou area

作　　者：刘家橙[1,2] 刘家橘 王晓燕[3] 刘冲 LIU Jiacheng;LIU Jiaju;WANG Xiaoyan;LIU Chong(Henan provincial institute of geological survey,Zhengzhou450001,China;Innovation Strategy Alliance of Underground Clean Energy Exploration and Development,Zhengzhou450001,China;The second geological and mineral survey institute of Henan bureau of Geological&Mineral Resources Exploration,Zhengzhou450001,China)

机构地区：[1]河南省地质调查院,郑州450001 [2]地下清洁能源勘查开发产业技术创新战略联盟,郑州450001 [3]河南省地质矿产勘查开发局第二地质矿产调查院,郑州450001

出　　处：《地质找矿论丛》2019年第1期78-83,共6页Contributions to Geology and Mineral Resources Research

基　　金：国土资源部第二轮页岩气探矿权项目"河南中牟页岩气勘查(编号:GT2012YQTKQCR0020)";河南省重大科技专项项目"河南页岩气勘查开发及示范应用研究(编号:151100311000)";河南省国土资源厅科技攻关项目"河南省平原区晚古生代页岩气层岩相古地理研究"(编号:2015-1992-20)联合资助

摘　　要：微地震监测技术是页岩气开采过程中对页岩气储层压裂效果评价和指导压裂过程的重要手段,可通过观察、分析压裂过程中诱发微地震事件,获取压裂裂缝参数、导流能力、裂缝展布发育方向等信息。中牟区块牟页1井具有低孔、低渗储层特征,对含气层段的三层储层,采用大排量水力压裂施工,进行地面微地震监测、井中微破裂成像技术压裂监测及微地震监测;牟页1井监测压裂结果显示为缝长251～496m,缝宽120～252m,改造体积约为237.5×104～387.7×104 m3,方位角64°～80°。压裂实施使储层裂缝开启含气层段得到改造,指导了实时压裂和压裂效果评价。Microseismic monitoring technology is an important means to evaluate the fracturing effect of shale gas reservoirs and to guide the fracturing process.By observing and analyzing the microseismic events induced in the fracturing process,the fracturing parameters,conductivity,the development azimuth of the fractures and other information are obtained.The Mouye No.1 well in the reservoir area of Zhongmou block has the following characteristics:low porosity and low permeability.The three layer reservoir of gas zone is conducted large volume hydraulic fracturing operation and the fracturing was monitored with micro-seismic technique at the ground surface and the micro-fracture imaging technique and micro-seismic technique in the well.The result is that the fracture is 251~496 mlong and 120~252 m wide,the reworked volume is about 237.5~387.7 million m3,azimuth is 64°~80°.Implement of the hydraulic fracturing opens fractures in reservoir and reworks the gas zone so as to guide the real-time fracturing and evaluate fracturing effects.

关 键 词：中牟区块 牟页1井 体积压裂 微地震监测技术 河南省 

分 类 号：TE377[石油与天然气工程—油气田开发工程]