摘要
介绍了桩古 2 5井的基本情况 .分析了地震前该井产油量变化特征和映震效能 .震前该井产油量突升 ,有时还伴有自喷现象 .地震强度越大 ,异常幅度越大或持续时间越长 .该井对绝大部分发生在其周围 2 0 0km以内的 4级以上地震和 5 0 0km以内的 5级以上地震有不同程度的异常反映 .
Basic conditions of Zhuanggu 25 well in Shengli oil field are introduced. Change characteristics of oil output before earthquakes and reflecting earthquake ability of the well are analysed. The results show that oil output of the well suddenly rose with gush sometimes before earthquakes. The larger the magnitude, the larger the anomalous amplitude and the longer the lasting time of the anomalies. Various degrees of anomalous changes of oil output of the well appear before most M L≥4 and M L≥5 earthquakes in a range of 200 km and 500 km distant from the well respectively. Mechanism of reflecting earthquake of Zhuanggu 25 well is discussed in last.
出处
《西北地震学报》
CSCD
2000年第3期258-260,272,共4页
Northwestern Seismological Journal
关键词
映震能力
地震前兆
胜利油田
油井动态
地震预报
Shandong
Reflecting earthquake ability
Earthquake precursor
Shengli oil field
Dynamic of oil well
Zhuanggu 25 well
