用微地震法监测油田生产动态

Micro-seismic monitor on the operation of oil fields

用微地震法在油田生产波及区对生产动态进行实时监测 ,是目前国内外广泛关注的前沿课题。参照国外微地震法监测信号的识别标准和识别方法 ,研制了独立的观测系统与软件 ,在大庆、华北、中原、大港等油田进行现场实验 ,对近百口井的观测取得了满意的结果。根据华北油田京 11断块京 3 44井 (注水井 )注水前缘监测结果分析的注水见效情况与生产实际一致。在油田开发初期就布置固定微地震台网 ,可以随时判断剩余油的分布范围 ,观测结果可以作为油田注水、调剖、井网布局与调整的依据。对微地震法稍加改进 ,也可用于实时监测人类活动诱发的微地震。图 2表 3参

The technology of observing production performance by using micro-seismic method in swept region is concerned worldwide. The overseas recognition criteria and method of micro-seismic signals are inferred to develop independent observation system and software, which have been successfully used in near 100 wells in Daqing, Huabei, Zhongyuan and Dagang Oilfield. The result of flood front observation is accordant with operation practice according to observation example of Well J344 (injector) in fault-block J11 of Huabei Oilfield. The remaining oil distribution could be estimated at any time by establishing micro-seismic net in early stage of reservoir development. The observation result may be used as a basis for water injection, profile controlling, well pattern layout and adjusting. And the micro-seismic could also be improved to monitor the micro-seismic induced by human activities.