地下液化石油气储库人工水幕施工技术

BP珠海地下液化石油气储库洞室采用人工水幕密封方式。文中阐述了在洞室上部围岩中钻孔注水的人工水幕的施工方法,重点介绍水幕水平钻孔、水幕临时注水调试等施工技术,确保地下水维持在安全水位。在丁烷储库水幕和丙烷储库的临时供水方案中,丙烷储库水幕临时供水,利用了通道内裂隙渗漏水作为水源,不仅节约了用水,还减轻了洞内排水的压力。其施工技术对类似地下洞室工程施工很有借鉴意义。

Construction Technique of Artificial Water Curtain for Underground Liquefied Petroleum Gas Reservoir

BP Zhuhai underground liquefied petroleum gas reservoir cavity is sealed by artificial water curtain.This paper describes the construction technique of artificial water curtain through drilling injection in the upper wall rocks of the cavity and emphasizes the technique of horizontal drilling and temporary injection testing to ensure underground water keeping at safe level.In temporary water supply program for butane reservoir and propane reservoir,water curtain of propane reservoir is supplied by inner crack leakage water as temporary supply source,which saves water and relieves pressure of inner drainage.Its construction technique is a reference for similar underground cavity engineering construction.