| 岫岩偏岭5．6级地震前辽河盆地地下流体映震特征 |
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| 引用本文： | 刘贵和,佟凤兰,等.岫岩偏岭5．6级地震前辽河盆地地下流体映震特征[J].东北地震研究,2000,16(4):44-51. |
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| 作者姓名： | 刘贵和 佟凤兰 |
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| 作者单位： | 中油辽河油田分公司地震台!辽宁 盘锦 124010，中油辽河油田分公司地震台!辽宁 盘锦 124010，中油辽河油田分公司地震台!辽宁 盘锦 124010，中油辽河油田分公司地震台!辽宁 盘锦 124010，中油辽河油田分公司地震台!辽宁 盘锦 124010 |
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| 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。这次地震前兆7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。
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| 关 键 词： | 岫岩地震 趋势异常 临震异常 前兆 地下流体 |
ANOMALOUS CHARACTERISTICS OF UNDERGROUND FLUID IN LIAOHE BASIN PRIOR TO XIUYAN MS5.6 EARTHQUAKE |
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| LIU Gui-he,TONG Feng-lan,ZHANG Zhen-ling,ZENG Qing-hong,LI Jun.ANOMALOUS CHARACTERISTICS OF UNDERGROUND FLUID IN LIAOHE BASIN PRIOR TO XIUYAN MS5.6 EARTHQUAKE[J].Seismological Research of Northeast China,2000,16(4):44-51. |
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| Authors: | LIU Gui-he TONG Feng-lan ZHANG Zhen-ling ZENG Qing-hong LI Jun |
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| Abstract: | 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. |
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| Keywords: | Xiuyan earthquake Trend anomaly Impending anomaly Anomalous characteristics |
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