Abstract：Microseismic monitoring is one of the most important methods for quantitatively evaluating effects of hydraulic fracturing reconstruction,which is of great significance for the development of unconventional oil and gas reservoirs.Two exa-mples of microseismic monitoring of tight oil fracturing in Songliao Basin are presented in this paper.Case 1 is to monitor the fracturing of two different cluster spacings in the same horizontal well,and Case 2 is to monitor the fracturing of two adjacent horizontal wells with different cluster spa-cings.Monitoring results show that the cluster spacing in horizontal wells has an important impact on fracturing effects.If the designed cluster spa-cing is too small,it will lead to overlap between the main fractures in the cluster and reduce the fracturing efficiency.If the designed cluster spacing is too large,it will produce unreformed area between the main fractures,which will affect the production degree of reservoirs.
Cheng Y.Boundary element analysis of the stress distribution around multiple fractures:Implications for the spacing of perforation clusters of hydraulically fractured horizontal wells[C]//SPE Eastern Regional Meeting,2009,Charleston,WestVirginia,USA.
[2]
潘林华,张士诚,程礼军,等.水平井"多段分簇"压裂簇间干扰的数值模拟[J].天然气工业,2014,34(1):74-79.PAN Linhua,ZHANG Shicheng,CHENG Lijun,et al.A numerical simulation of the inter-cluster interference in multi-cluster staged fracking for horizontal wells[J].Natural Gas Industry,2014,34(1):74-79.
[3]
Roussel N P,Sharma M M.Optimizing fracture spa-cing and sequencing in horizontal-well fracturing[J].SPE Production & Operations,2011,26(2):173-184.
[4]
曾凡辉,郭建春,刘恒,等.致密砂岩气藏水平井分段压裂优化设计与应用[J].石油学报,2013,34(5):959-968.ZENG Fanhui,GUO Jianchun,LIU Heng,et al.Optimization design and application of horizontal well staged fracturing intight gas reservoirs[J].Acta Petrolei Sinica,2013,34(5):959-968.
[5]
刘振武,撒利明,巫芙蓉,等.中国石油集团非常规油气微地震监测技术现状及发展方向[J].石油地球物理勘探,2013,48(5):843-853.LIU Zhenwu,SA Liming,WU Furong,et al.Microseismic monitor technology status for unconventional resource E & P and its future development in CNPC[J].Oil Geophysical Prospecting,2013,48(5):843-853.
[6]
梁兵,朱广生.油气勘探开发中的微震监测方法[M].北京:石油工业出版社,2004.
[7]
唐杰,方兵,蓝阳,等.压裂诱发的微地震震源机制及信号传播特性[J].石油地球物理勘探,2015,50(4):643-649.TANG Jie,FANG Bing,LAN Yang,et al.Focal mechanism of micro-seismic induced by hydrofracture and its signal propagation characteristic[J].Oil Geophysical Prospecting,2015,50(4):643-649.
[8]
姚振岸,孙成禹,唐杰,等.基于不同震源机制的黏弹各向异性微地震波场模拟[J].石油地球物理勘探,2017,52(1):63-70.YAO Zhen'an,SUN Chengyu,TANG Jie,et al.Micro-seismic forward modeling in viscoelastic anisotropic media based on different focal mechanism[J].Oil Geophysical Prospecting,2017,52(1):63-70.
方兵,孙成禹,唐杰,等.微地震信号频率特性分析[J].石油地球物理勘探,2015,50(3):411-417.FANG Bing,SUN Chengyu,TANG Jie,et al.Analysis of frequency characteristics of micro-seismic signals[J].Oil Geophysical Prospecting,2015,50(3):411-417.
杨心超,朱海波,崔树果,等.P波初动震源机制解在水力压裂微地震监测中的应用[J].石油物探,2015,54(1):43-50.YANG Xinchao,ZHU Haibo,CUI Shuguo,et al.Application of P-wave first-motion focal solutions in microseismic monitoring for hydraulic fracturing[J].Oil Geophysical Prospecting,2015,54(1):43-50.
[13]
郑爱萍,刘强,田永鹏,等.微地震水力压裂监测技术在浅层石炭系火山岩油藏中的应用[J].特种油气藏,2012,19(1):120-123.ZHENG Aiping,LIU Qiang,TIAN Yongpeng,et al.Application of microseismic hydraulic fracturing monitoring technology in the shallow Carboniferous volcanic reservoir[J].Special Oil and Gas Reserviors,2012,19(1):120-123
[14]
容娇君,李彦鹏,徐刚,等.微地震裂缝检测技术应用实例[J].石油地球物理勘探,2013,48(5):763-769.RONG Jiaojun,LI Yanpeng,XU Gang,et al.Fracture detection with microseismic[J].Oil Geophysical Prospecting,2013,48(5):763-769.
[15]
Fisher M K,Heinze J R,Harris C D,et al.Optimizing horizontal completion techniques in the Barnett shale using microseismic fracture mapping[C].SPE Annual Technical Conference and Exhibition,2004,Houston, USA.
[16]
李勇明,陈曦宇,赵金洲,等.水平井分段多簇压裂缝间干扰研究[J].西南石油大学学报(自然科学版),2016,38(1):76-83.LI Yongming,CHEN Xiyu,ZHAO Jinzhou,et al.The effects of crack interaction in multi-stage horizontal fracturing[J].Journal of Southwest Petroleum University (Science & Technology Edition),2016,38(1):76-83.
[17]
Gale,Julia F W.Natural fractures in the Barnett Shale and their important for hydraulic fracture treatment[J].AAPG Bulletin,2007,91(4):603-622.
[18]
Maxwell S C,Cho D,Pope T L,et al.Enhanced reservoir characterization using hydraulic fracture micro-seismicity[C].SPE Hydraulic Fracturing Technology Conference and Exhibition,The Woodlands,Texas,2011.
[19]
吕世超,郭晓中,贾立坤,等.水力压裂井中微地震监测资料处理与解释[J].油气藏评价与开发,2013,3(6):37-42.LYU Shichao,GUO Xiaozhong,JIA Likun,et al.Treatment and interpretation of microseismic monitoring data in hydraulic fracturing wells[J].Evaluation and Development of Oil and Gas Reservoris,2013,3(6):37-42.
