微地震技术评价中牟区块体积压裂的效果
|
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.
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.
引文
[1]王振兴.井中微地震监测技术在涪陵页岩气田首次应用[J].汉江石油科技,2015(1):25-26.
[2]钟尉,朱思宇.地面微地震监测技术在川南页岩气井压力中的应用[J].油气藏评价与开发,2014,12(26):72-74.
[3]王纳申,张译丹,黄家旋,等.用微地震技术评价姬塬油田体积压裂的效果[J].物探与化探,2017,41(1):166-170.
[4]邱庆伦,张古彬,冯辉,等.河南中牟区块页岩气特征及勘探前景分析[J].地质找矿论丛,2018,33(1):70-75.
[5]邱庆伦,张木辰,李中明,等.牟页1井海陆过渡相页岩气压裂试气效果分析[J].石油地质与工程,2017,31(2):112-116.
[6]李中明,张栋,张古彬,等.豫西地区海陆过渡相含气页岩层系优选方法及有利区预测[J].地学前缘,2016,23(2):1-9.
[7]张金川,薛会,张德明,等.页岩气及其成藏机理[J].现代地质,2003,17(4):466.
[8]周庆华,宋宁,王成章,等.湖南花垣页岩气区块地质评价与勘探展望[J].天然气地球科学,2014,25(1):130-140.
[9]林景禹,李学义,等.河南中牟页岩气勘查牟页1井直井射孔压裂排采测试施工设计[R].郑州:深圳市百勤石油技术有限公司,2014:16-27.
[10]丁建锁,冯彩琴,等.河南中牟页岩气勘查牟页1井直井射孔压裂排采测试施成果报告[R].郑州:深圳市百勤石油技术有限公司,2014:11-20.
[11]彭维军,张生贵,吴长江,等.牟页1井压裂地面微地震裂缝监测成果报告[R].郑州:中石化石油工程地球物理有限公司,2015:2-4.
[12]容娇君,李彦鹏,徐刚,等.微地震裂缝检测技术应用实例[J].石油地球物理探勘探,2015,50(5):920-924.
[2]钟尉,朱思宇.地面微地震监测技术在川南页岩气井压力中的应用[J].油气藏评价与开发,2014,12(26):72-74.
[3]王纳申,张译丹,黄家旋,等.用微地震技术评价姬塬油田体积压裂的效果[J].物探与化探,2017,41(1):166-170.
[4]邱庆伦,张古彬,冯辉,等.河南中牟区块页岩气特征及勘探前景分析[J].地质找矿论丛,2018,33(1):70-75.
[5]邱庆伦,张木辰,李中明,等.牟页1井海陆过渡相页岩气压裂试气效果分析[J].石油地质与工程,2017,31(2):112-116.
[6]李中明,张栋,张古彬,等.豫西地区海陆过渡相含气页岩层系优选方法及有利区预测[J].地学前缘,2016,23(2):1-9.
[7]张金川,薛会,张德明,等.页岩气及其成藏机理[J].现代地质,2003,17(4):466.
[8]周庆华,宋宁,王成章,等.湖南花垣页岩气区块地质评价与勘探展望[J].天然气地球科学,2014,25(1):130-140.
[9]林景禹,李学义,等.河南中牟页岩气勘查牟页1井直井射孔压裂排采测试施工设计[R].郑州:深圳市百勤石油技术有限公司,2014:16-27.
[10]丁建锁,冯彩琴,等.河南中牟页岩气勘查牟页1井直井射孔压裂排采测试施成果报告[R].郑州:深圳市百勤石油技术有限公司,2014:11-20.
[11]彭维军,张生贵,吴长江,等.牟页1井压裂地面微地震裂缝监测成果报告[R].郑州:中石化石油工程地球物理有限公司,2015:2-4.
[12]容娇君,李彦鹏,徐刚,等.微地震裂缝检测技术应用实例[J].石油地球物理探勘探,2015,50(5):920-924.