大型水封洞库水幕系统的连通性评价  

Connectivity evaluation of water curtain system of large-scale water-sealed storage cavern

作　　者：李印[1] 陈雪见 任文明[1] 杨征[1] 郭书太[1] 

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000

出　　处：《油气储运》2015年第2期167-170,共4页Oil & Gas Storage and Transportation

摘　　要：大型水封洞库建设的成败在于水幕系统的建设,水幕系统用于改善储油洞室周围的水封条件,提高储油洞室的密封性。在水幕巷道挖掘完成后,需要通过试验检验水幕系统的水力联系,根据试验结果确定是否需要增设水幕孔数量,以确保洞库的水封效果。以某地下石油储备库水幕系统的建设为例,详细阐述水幕系统有效性试验的前期准备、试验步骤、数据采集与解译,给出了水幕系统连通性综合判定原则,通过比对有效性试验实测的孔隙水压力值和水封状态下的理论值,评价水幕系统的连通性,并提出水封效果的改善方法,可供业内同行借鉴。The success of large-scale water-sealed storage cavern lies in the construction of water curtain system.Water curtain system is used to enhance the sealing performance of the oil storage cavern by improving the water seal conditions around the cavern.After the completion of water curtain tunnel excavation,it is necessary to test the hydraulic connection of the water curtain system and then determine if more water curtain holes are required to ensure the water seal effect of the cavern.Taking the water curtain system construction of an underground oil storage as an example,this paper elaborates the preparation,test steps,data acquisition and interpretation of validity test for the water curtain system,and presents the comprehensive principles to judge the connectivity of water curtain system.Through comparing the measured value of pore water pressure under validity test and the theoretical value with water seal condition,the connectivity of the water curtain system is evaluated,and then the improving method of water seal effect is proposed,providing a reference for the industry peers.

关 键 词：水封洞库 水幕系统 有效性试验 水力联系 连通性评价 

分 类 号：TE822[石油与天然气工程—油气储运工程]