岫岩偏岭5.6级地震前辽河盆地地下流体映震特征  

ANOMALOUS CHARACTERISTICS OF UNDERGROUND FLUID IN LIAOHE BASIN PRIOR TO XIUYAN MS5.6 EARTHQUAKE

作　　者：刘贵和[1] 佟凤兰[1] 张振岭[1] 曾庆红[1] 李军[1] 

机构地区：[1]中油辽河油田分公司地震台,辽宁盘锦124010

出　　处：《东北地震研究》2000年第4期44-51,共8页Seismological Research of Northeast China

摘　　要：本文主要分析了1999年11月29日岫岩偏岭5.6级地震前，辽河盆地内7口观测井的前兆异常特征。观测项目有水位、采液量、采气量及套管压力等。这次地震前这7口井的观测资料均出现明显的趋势异常和短临前兆异常，并且具有较好的同步性。异常形态多数表现为升-降-升型。油田抽水、注水、采油、采气及大气压、固体潮等干扰因素对观测资料没有影响，异常是真实可信的。Impending anomalous characteristics such as water level, oil recovery volume, gas recovery volume, casing pressure of 7 wells in Liaohe Oil Field prior to Xiuyan MS5.6 earthquake are analyzed in this paper. The trend, short term and impending anomalies appeared in the 7 observed wells prior to the earthquake appear with a fairly good synchronism and a shape of rise-fall-rise. The observation shows that some disturbance factors such as water flooding, pressure and temperature, etc. did not influence the observed data, therefore. the observed anomalies are true.

关 键 词：岫岩地震 趋势异常 临震异常 前兆 地下流体 

分 类 号：P315.723[天文地球—地震学]