地震流体观测井防止积水倒灌装置的研究与应用  

Research and Application of a Device for Preventing Water Backflow in Seismic Fluid Observation Wells

作　　者：马永 东得淼 孟敬贤 MA Yong;DONG Demiao;MENG Jingxian(Tianjin Earthquake Agency,Tianjin 300201,China)

机构地区：[1]天津市地震局,天津300201

出　　处：《山西地震》2024年第2期44-47,共4页Earthquake Research in Shanxi

基　　金：中国地震局震情跟踪定向工作任务(2024020106、2024010111)。

摘　　要：一些地震流体观测井受周边观测环境的影响,容易在汛期出现降雨积水干扰现象,严重影响观测数据质量,甚至造成数据传感器故障。本文针对天津市滨海地震监测中心站民园井在观测中出现的积水倒灌现象,设计两种可根据观测井孔实际情况“量身定制”的用于防止观测井在降雨积水时出现倒灌的连通装置,并将观测井的最大水位深度、井口形状、周围空间环境和可能出现的最大积水深度等因素与装置规格建立理论转换关系式。实际应用情况表明,该装置可有效保护流体观测设备,减少观测数据干扰,提高观测数据的连续率和完整率,同时具备很强的适应能力,易于在流体观测井中推广,以解决低洼地区或洪水高发地区观测井的积水倒灌问题,为地震预测预报工作提供连续、完整的观测数据。Some seismic fluid observation wells are affected by the surrounding observation environment,and are prone to rainfall water interference during flood season,which seriously affects the quality of observation data and even causes data sensor failure.This article focuses on the phenomenon of water backflow in the Minyuan well of the Tianjin Binhai Earthquake Monitoring Center Station during observation.Two customized connecting devices are designed to prevent backflow in the observation well during rainfall and water accumulation based on the actual situation of the observation well.A theoretical conversion relationship is established between the maximum water level depth,wellhead shape,surrounding spatial environment,and possible maximum water accumulation depth of the observation well and the device specifications.The practical application shows that the device can effectively protect the fluid observation equipment,reduce the interference of the observation data,improve the continuity and completeness of the observation data,and at the same time,it has a strong adaptive ability and is easy to be popularized in fluid observation wells,so as to solve the problem of water back-up in the observation wells in the low-lying areas or flood-prone areas,and to provide continuous and complete observation data for the seismic forecasting and prediction work.

关 键 词：数据分析 环境干扰 流体观测 积水倒灌 装置研究 

分 类 号：P315.62[天文地球—地震学]