摘要
微地震监测是一项用于检测注水压裂效果,进行油藏动态监测的方法。对微地震有效事件的识别与定位是进行有效、快速监测的关键因素。对水力压裂微地震监测资料的处理主要步骤有预处理、滤波、有效微地震事件拾取以及微地震震源定位等。介绍了针对井中微地震监测资料的具体处理步骤与方法,并应用于实际监测的水力压裂微地震资料中,利用数据处理结果分析压裂施工的效果。微地震震源裂缝的产生数量、位置分布与注水压裂的施工过程以及油藏压裂效果密切相关,通过分析不同时段的裂缝发育情况,可以了解压裂前缘的分布,从而为进一步调整油藏方案提供依据。
Microseismic monitoring is a technique used in detecting the hydraulic fracturing effects and monitoring the reservoir dy- namic. The identification and location of valid microseismic events are the key factors to the effective and rapid monitoring. The main steps of the hydraulic fracturing microseismic monitoring data contain pre-processing, filtering, detecting of valid microseis- mic events and locating of microseismic source. Herein, the specific processing steps and methods for well microseismic data moni- tored are introduced and applied to the actual monitoring of hydraulic fracturing microseismic data to analyze the fracturing effects by using the data processing results. The number and distribution of microseismic source fractures have closely relation with the hy- draulic fracturing procedure and the reservoir fracturing effects. By analyzing the fractures development in different periods, the fracturing front distribution can be understood and then provides the basis for the further reservoir solution adjustments.
出处
《油气藏评价与开发》
2013年第6期37-42,共6页
Petroleum Reservoir Evaluation and Development
关键词
井中微地震监测
水力压裂
裂缝
震源定位
well microseismic monitoring, hydraulic fracturing, fracture, source location
