CAJ | 학술논문

当今世界上对油气田增产以及非常规油气田开发时，应用最广泛最有效的石油工程技术方法是水力压裂。评价水力压裂效果的最成功的方法是微地震监测。国内目前在这方面仍处于起步阶段。通过数值模拟方法，研究不同位置的压裂导致微地震源产生的弹性波场特征，采用相邻井中二分量接收信号进行微地震源反演模拟研究。结合纵波横波的传播时间以及偏振特性等信息，追踪微地震波传播路径，计算声源位置，确定压裂裂缝的前沿，从而达到评估压裂效果的目的。数值模拟结果表明，该方法在微地震监测的声源定位方面有较高的精确度，在微地震监测的反演中有一定的借鉴意义。
당금세계상대유기전증산이급비상규유기전개발시，응용최엄범최유효적석유공정기술방법시수력압렬。평개수력압렬효과적최성공적방법시미지진감측。국내목전재저방면잉처우기보계단。통과수치모의방법，연구불동위치적압렬도치미지진원산생적탄성파장특정，채용상린정중이분량접수신호진행미지진원반연모의연구。결합종파횡파적전파시간이급편진특성등신식，추종미지진파전파로경，계산성원위치，학정압렬렬봉적전연，종이체도평고압렬효과적목적。수치모의결과표명，해방법재미지진감측적성원정위방면유교고적정학도，재미지진감측적반연중유일정적차감의의。
Nowadays, the hydraulic fracturing is the most widely applied and most effective way to develop and promote the productivity of oil and gas fields in the world. Micro-seismic monitoring is considered to be the most successful method to evaluate the hydraulic fracturing. However, in China, the application and research on this aspect are still at the initial stage. Numerical simulation is done in this paper to study on the acoustic field characteristics of fractures at dif-ferent locations and to simulate the two-component micro-seismic monitoring in neighboring wells. The time-arrival properties of P-wave and S-wave, as well as their polarization properties are studied together to improve the veracity and reliability in micro-seismic monitoring. The numerical simulation shows a good accuracy in source localization pro-vided by this approach, which is expected to be a reliable method in improving the performance of micro-seismic mon-itoring.