摘要
根据胜利油田东营凹陷深井注水所监测到的破裂信号特征分析,结合位于同一凹陷内的角7井注水诱发地震特征,对注水诱发地震的成因进行了探讨。注水过程中地层有无先存破裂面对所诱发的地震产生较大影响,认为诱发地震的震级与注采比和注水井的构造位置密切相关。
By analyzing the characteristics of fracture signal during deep well injection in Dongying depression of Shengli oil field, comparing with the induced earthquake at Jiao 7 well in the same depression, the seismic mechanism of earthquake induced by water injection in oil and gas field is discussed. It influenced greatly on induced earthquake whether there are existed fracture or not. It is considered that the magnitude of induced earthquake is closely related to the ratio of injection and production, and the structure location of injection well.
出处
《西北地震学报》
CSCD
北大核心
2008年第3期221-226,共6页
Northwestern Seismological Journal
基金
监测评价项目由杜邦公司资助
关键词
东营凹陷
注水
先存破裂面
破裂包络线
诱发地震
Dongying depression
Water injection
Existed fracture
Failure envelope
Induced earthquake
