差干井同震井喷现象的调查与分析

doi:10.3969/j.issn.0253-4967.2009.02.003

地震地质 ›› 2009, Vol. 31 ›› Issue (2): 226-232.DOI: 10.3969/j.issn.0253-4967.2009.02.003

差干井同震井喷现象的调查与分析

车用太¹, 鱼金子¹, 刘成龙¹, 万永芳², 罗胜钦³, 何永清³, 肖振东³

1. 中国地震局地质研究所, 北京, 100029;
2. 广东省地震局分析预报中心, 广州, 510070;
3. 广东省梅州市地震办公室, 梅州, 514021

收稿日期:2008-04-23 修回日期:2009-01-07 出版日期:2009-03-11 发布日期:2009-11-27
作者简介:车用太,男,1942年生,1967年于中国科学院地质研究所喀斯特水文地质专业研究生毕业,研究员,主要研究方向为地震地下流体监测与预测研究,010-62009057,E-mail:che@ies.ac.cn.

INVESTIGATION AND ANALYSIS TO CO-SEIMIC BLOWOUT IN CHAGAN WELL

CHE Yong-tai¹, YU Jin-zi¹, LIU Cheng-long¹, WAN Yong-fang², LUO Sheng-qin³, HE Yong-qing³, XIAO Zheng-dong³

1. Institute of Geology, China Earthquake Administration, Beijing 100029, China;
2. Analysis and Prediction Centre of Earthquake Administration of Guangdong Province, Guangzhou 510070, China;
3. Earthquake Office of Meizhou City, Guangdong Province, Meizhou 514021, China

Received:2008-04-23 Revised:2009-01-07 Online:2009-03-11 Published:2009-11-27

摘要/Abstract

摘要： 差干井在2004年12月26日印尼M_S8.7地震时发生强烈井喷,喷柱高达60m。调查与分析结果表明,井喷是在特定的井区水文地质条件下,富含CO₂气体的观测含水层地下水受到地震波的扰动,一方面使大量吸附气被释放,另一方面使游离气泡被打碎,导致地下水被"汽"化,从而使含水层孔隙压力剧增引起的。

关键词: 井喷, 同震效应, 差干井

Abstract: Violent blowouts occurred in Chagan Well when the M_S 8.7 Sumatra earthquake happened on Dec.26,2004,with the eruptive fountain up to 60m high.The result of investigation and analysis of Chagan well indicates that blowout occurred in the condition of special hydrogeology.The water of monitoring layer was rich of CO₂.When the aquifer of monitoring was disturbed by the earthquake wave,a large number of absorbed gases were released.On the other hand,free bubble was broken by the earthquake wave and the groundwater was gasified,leading to the rapid increase of the pore pressure.

Key words: blowout, coseismic effect, Chagan well

中图分类号:

P315.72⁺3

车用太, 鱼金子, 刘成龙, 万永芳, 罗胜钦, 何永清, 肖振东. 差干井同震井喷现象的调查与分析[J]. 地震地质, 2009, 31(2): 226-232.

CHE Yong-tai, YU Jin-zi, LIU Cheng-long, WAN Yong-fang, LUO Sheng-qin, HE Yong-qing, XIAO Zheng-dong. INVESTIGATION AND ANALYSIS TO CO-SEIMIC BLOWOUT IN CHAGAN WELL[J]. SEISMOLOGY AND GEOLOGY, 2009, 31(2): 226-232.

差干井同震井喷现象的调查与分析

INVESTIGATION AND ANALYSIS TO CO-SEIMIC BLOWOUT IN CHAGAN WELL

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