摘要
利用7期水准数据,对呼图壁储气库在注采气周期不同阶段地表发生形变的过程进行了分析,并对可能产生的外部干扰因素进行了简要分析。结果表明:利用水准测量方法能够反映出由于注采气的作用,储气库内部构造在受压和释放过程中在地表形成的变化。地表形变量大小与注采气的周期与注采气气量有关,地表变形方式分为明显的抬升和沉降两个阶段,既注气期间地表抬升,采气期间地表沉降,且形变幅度较大。
Through seven terms data analysis of Hutubi gas storage both in gas injection and production surface strain deformation process of different stages, possible external interference factors were briefly analyzed. Results showed that the method of level measuring can accurately reflect earth surface change of gas storage because of influence of gas injection and production, internal structure in the compression and release. Earth surface strain deformation connected with gas injection and gas volume, and its forms boosted both uplift in gas injection and subsidence in gas production, which involved in large mount of strain deformation.
出处
《内陆地震》
2017年第1期9-16,共8页
Inland Earthquake
基金
国家自然科学基金"呼图壁地下储气库三维时空变形与注采压力变化机理研究"(41474016)
中国地震局三结合课题"利用水准和重力联合平差模型研究储气库压力变化与地壳形变特征关系"(CEA-JC/3JH-16310X)
新疆维吾尔自治区自然基金(2016D01A062)
关键词
储气库
地表
形变
干扰因素
Gas storage
Earth surface
Strain deformation
Interference factor
