摘要
常规泡排施工中,泡排剂一般适用于90℃以下及矿化度小于100 000 mg/L的地层,阻碍了泡沫排水采气工艺在高温、高矿化度产水气井中的应用。针对高温、高矿化度产水气井的特点,通过深入研究表面活性剂理论,确立了通过阴离子表面活性剂与阳离子表面活性剂进行复配的方式来获得在高温、高矿化度下具有良好的起泡性、稳泡性以及携液速率的泡排剂GWJ。研究表明,在温度为160℃、矿化度为250 000 mg/L下,其初始起泡体积与泡沫半衰期分别达到1 860 m L和620 s,证明泡排剂GWJ具有优良的耐高温与耐高矿化度性,可以满足高温、高矿化度产水气井的泡排施工要求。
In normal foaming drainage work, foaming drainage agent is usually used in stratum under 90℃ with salinity less than 100 000 mg/L, hence hindering the application of foaming drainage gas recovery technology in high temperature and high salinity waterproducing gas wells. In view of high temperature and high salinity in water-producing gas wells and by profoundly studying the theory of surfactant, a kind of foaming drainage agent GWJ was developed by compounding anionic surfactant and cationic surfactant which has good foaming performance, foam stabilizing property and high liquid-carrying velocity under high temperature and high salinity. Study shows that, at a temperature of 160 ℃ and a salinity of 250 000 mg/L, its initial foaming volume and foam half-life period are 1 860 m L and 620 s respectively, proving that GWJ has good high temperature and high salinity resistance properties and can meet the requirement of foaming drainage work in water-producing gas wells of high temperature and high salinity.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2016年第2期256-259,266,共5页
Oil Drilling & Production Technology
基金
中国石油股份公司科技重大专项"深层油气勘探开发关键技术研究"课题七"深层油气藏改造
堵水与举升技术"(编号:2014-32-07)
作者简介
武俊文（1985-）,2014年毕业于中国科学院化学研究所并获得博士学位,现主要从事油田化学品的研发工作.通讯地址：（100083）北京市海淀区学院路20号中国石油勘探开发研究院.电话：010-83595921.E-mail：wujunwen@iccas.ac.cn
