深井早期微量溢流监测技术  

A Technology to Monitor Early Micro Overflow of Deep Well

作　　者：李治伟[1] 刘绘新[1] 徐朝阳[1] 廖振纲 邓燃 

机构地区：[1]油气藏地质及开发工程国家重点实验室西南石油大学,四川成都610500 [2]中国石油川庆钻探工程公司川东钻探公司,重庆400021 [3]石油工业井控装置质量监督检验中心,四川广汉618300

出　　处：《天然气技术与经济》2011年第3期29-31,78,共3页Natural Gas Technology and Economy

基　　金：国家科技重大专项"大型油气田和煤层气开发"中"塔里木盆地塔中碳酸盐岩油气勘探开发示范工程"的研究内容之一

摘　　要：针对常规溢流监测技术不能准确监测深井早期微量溢流的问题,在充分考察国内外现有溢流监测技术现状的基础上,根据钻井过程中开井、关井、井漏失返3种循环工况,制定了深井早期微量溢流监测方案,形成了深井早期微量溢流监测技术。该技术由具有自主知识产权的井口导管液面监测方法、分离器液面监测方法和环空液面监测方法3部分组成,具有很好的针对性和适用性,可以及时、准确地预报溢流,为溢流控制赢得更多的时间,以确保井控安全。Conventional technologies to monitor overflow may not accurately monitor early micro overflow of deep well.In this study,some current overflow monitoring technologies at home and abroad are fully investigated at first;and then,according to three cycles of well opening,well shutdown and no-return of lost circulation during drilling,a technology to monitor early overflow of deep well is established.This technology consists of three liquid-level monitoring methods of wellhead conduit,separator and annular space （the last two ones possessing self-owned intellectual property rights;and the first one being applied for domestic patent rights）.With time saving,it can accurately predict overflow to ensure a security of well control.

关 键 词：深井 天然气 溢流 监测技术 

分 类 号：TE311[石油与天然气工程—油气田开发工程]