井下微地震监测技术在公003-H16井水力压裂中的应用

APPLICATION OF THE DOWNHOLE MICROSEISMIC MONITORING TECHNOLOGY IN HYDRAULIC FRACTURING OF WELL GONG003- H16

井下微地震监测技术是目前国际上公认的最先进的裂缝监测技术,利用该技术对公003-H16井水力压裂裂缝形态进行了监测。井下微地震监测结果与压裂施工曲线进行紧密结合后,对及时优化压裂参数、实时调整施工方案提供了重要依据。井下检波器监测到的最远微地震事件信号距离检波器达到950 m,监测结果清晰地反映了压裂井地层地应力方向与大小,地层非均质性,水力压裂产生的裂缝方位、缝长、缝高、缝宽等参数,为该区块以后油井的部署与储层改造提供了重要参考。

Downhole microseismic monitoring technology is the most advanced fracture monitoring technology. The technology was used to monitor the hydraulic fracturing fracture of the Gong 003-H16 well. Combining the fracturing operation curve,the monitoring results of downhole microseismic could provide important basis for optimizing fracturing parameters timely and adjusting construction scheme. The farthest monitoring range of microseismic wave reached 950 meters,the monitoring results clearly reflected the direction and size of earth stress,formation heterogeneity,the fracture azimuth,fracture length,fracture height,fracture width and other parameters of hydraulic fracturing well Gong 003-H16. These parameters can provide an important reference for deployment of the oil wells and transformation of the reservoir in the block.