下粗上细的苏20新井结构及其监测效能分析  

The Nether Part-rough and Upper Part-thin Well Completion Technology and Efficiency Analysis of the New Su20 Well

作　　者：殷世林[1] 富鸿 花晶[1] Yin Shilin;Fu Hong;Hua Jing(Suzhou Earthquake Agency,Suzhou 215002,Jiangsu,China)

机构地区：[1]苏州市地震局

出　　处：《中国地震》2018年第3期565-570,共6页Earthquake Research in China

摘　　要：本文介绍了苏20新井下粗上细结构及成井工艺,其中上部套管内径为146mm,下部套管内径为180mm。对其监测效能进行了分析,并从日潮差、峰谷出现时间、M_2波潮汐因子等角度比较不同井孔结构的响应能力。同时,对地震系统今后建井给出了借鉴性的建议,即按下粗上细新结构、新工艺施工成井,提高地震观测井对地壳应力应变的响应能力。This paper introduces the structure and completion method of the new Su20 well. The inner diameter of the upper casing is 146 mm,and the inner diameter of the lower casing is 180 mm.We analyze the monitoring efficiency,and compare the response ability of different well structures from the way of diurnal tide difference,peak and valley time,M_2 wave tide factor and so on. At the same time,some suggestions for future well construction of seismic system are given,that is,to construct wells according to new structures and techniques,so as to improve the response ability of seismic observation wells to crustal stress and strain.

关 键 词：观测井结构 水位日潮差 监测效能 

分 类 号：P315[天文地球—地震学]