Title

Application of vector scanning for fracture monitoring with surface microseismic data

单位

1.中国石油化工股份有限公司胜利油田分公司采油工艺研究院，山东东营257000；2.中国石油化工股份有限公司中

原油田分公司开发部，河南濮阳457001；3.中国石油天然气集团公司东方地球物理勘探有限责任公司国际勘探事业

部，河北涿州072750；4.北京博达吉泰科技有限公司，北京100085；5.GeoImage,LLC,CO 80016USA

Organization

Wang Lei,Shengli Oil Production Research Institute,SINOPEC,Dongying 257000,China

摘要

对微破裂向量扫描技术在地表观测的微地震压裂监测中的应用进行了试验和讨论。通过不同岩性条件下直井

、斜井和水平井压裂监测等多个应用实例的试验研究，讨论分析了微破裂向量扫描技术应用成功必须解决的几个重

要问题：①在时间上精确同步、与大地良好耦合的专用微震监测仪器；②在远离压裂车群1~3 km的环形地域内定

量优选安静处布设离散监测地震台网；③对向量扫描输出的破裂能量分布的解释，必须在分辨出压裂段近处的压

裂裂缝、由于振动波型叠加特性引起的伪能量斑点以及远处不连通的诱发破裂的较高能量带的基础上，作出服从物

理力学原理和可能的最逼近真实的裂缝时空分布特性解释。通过与井下邻近观测压裂监测解释结果的对比验证，说

明了地表观测的微破裂向量扫描技术的可行性和可靠性。

Abstract

We experienced monitoring and imaging hydro-fracture processes with a small-scale seismic array on land surface by vector

scanning technique for micro-fracture，for verifying the feasibility and reliability of the method.The technique stacks the

recorded vectors of seismic stations with properly considering mechanism of micro-fracture.To correctly achieve fracture

geometry with respect to time,we have to consider the microseismic mechanism of shear fractures,ensure the seismometers

precise synchronization in time and good coupling with the earth,distribute the seismic array sparsely more than 1~3 km far

from fracturing vehicles,and interpret the fracture geometry based on physical mechanics and known characteristics for the

fractures.The vector scanning technique significantly shows the fracture imaging quality,and provides us a cost-effective

approach for monitoring flow-enhancement hydro-fracture processes.

关键词：

微地震压裂监测; 地表微地震观测; 向量扫描; 震源机制; 破裂能量分布;

Keywords:

micro-fracture monitoring; surface microseismic survey; vector scanning; seismic source mechanism; fracture energy

distribution

;

基金项目

DOI

10.3969/j.issn.1000-1441.2012.06.010

微破裂向量扫描技术在压裂监测中的应用