地面微地震监测技术在页岩油水平井压裂效果评价中的应用--以松页油2HF井为例  

APPLICATION OF SURFACE MICROSEISMIC MONITORING TECHNOLOGY IN FRACTURING EFFECT EVALUATION OF SHALE OIL HORIZONTAL WELL:A Case Study of SYY-2HF Well

作　　者：姚玉来[1] 李昂 李士超[1] 杨建国[1] 肖飞 王维红[2] YAO Yu-lai;LI Ang;LI Shi-chao;YANG Jian-guo;XIAO Fei;WANG Wei-hong(Shenyang Center of China Geological Survey,Shenyang 110034,China;Northeast Petroleum University,Daqing 163318,Heilongjiang Province,China)

机构地区：[1]中国地质调查局沈阳地质调查中心,辽宁沈阳110034 [2]东北石油大学,黑龙江大庆163318

出　　处：《地质与资源》2022年第1期106-114,共9页Geology and Resources

基　　金：中国地质调查局项目“大庆齐家-古龙地区页岩油气战略调查与评价”(DD20179613),“松辽盆地北部页岩油战略调查”(DD20190114),“松辽盆地核心目标区页岩油参数获取”(DD20189810)。

摘　　要：地面微地震监测是评价水平井压裂效果的有效手段.采用矩形观测系统、高灵敏度检波器深浅结合埋置、覆土耦合压实的采集技术,在2000 m之下的松页油2HF井水平段泥页岩储层中获得明显的压裂微地震信号.利用数据归一化、噪声压制、速度建模、震源定位等关键处理技术,有效提高了泥页岩储层低频信号成像精度.采用高精度反演定位解释技术,客观真实地评价了松页油2HF井的压裂效果,并提出压裂优化建议.Surface microseismic monitoring is an effective method to evaluate the fracturing effect of horizontal well.By adopting the rectangular observation system,shallow-depth embedment and soil-covering coupling compaction acquisition techniques of high sensitivity geophones,obvious fracturing microseismic signals are obtained in shale reservoir in the horizontal interval of SYY-2HF well below 2000 m.The application of key processing technology including data normalization,noise suppression,velocity modeling and seismic source localization has effectively improved the imaging precision of low-frequency signals in shale reservoir.Through high-precision inversion positioning and interpretation technology,the paper objectively evaluates the fracturing effect of SYY-2HF well and puts forward suggestions for fracturing optimization.

关 键 词：微地震监测 压裂 页岩油 水平井 松辽盆地 

分 类 号：P631.4[天文地球—地质矿产勘探] TE357.1[天文地球—地质学]