【摘要】 介绍了在镇泾油田使用微地震监测方法监测油田压裂、注水获得的可以分辨出初至符号的微地震信号,依据微地震的初至符号做出震源机制解,检测压裂、注水监测的可靠性及压裂、注水效果。结果表明,监测的裂缝方向、注水前缘方向与微地震震源机制节面方向一致,监测结果是可靠的。此项研究提供了一个来自微地震监测本身,可以检测微地震监测结果是否可靠的方法,为那些深度较大、难以取得其他旁证的压裂、注水监测提供了重要检测手段。更多还原

【Abstract】 This paper describes arrival time of microseismic signals,which were obtained from monitoring fracturing and waterfloodand were used to interpolate mechanisms of micro-earthquake and verify reliability of fracturing and waterflood monitoring.It shows that fracture orientation,waterflood front geometry,and microseismic mechanism nodal plane are consistent,and monitoring results are reliable.This study depicts a self-check approach to verify dependability of microseismic mapping itself,and it is an important measurement method for fracturing and waterflood projects of deep formations when no alternative verifications are viable.更多还原