摘要
油气田开发工艺技术中使用的自生气有N2、O2、CO2、ClO2和混合气五大类型,来源于化学反应和微生物的代谢产物。自生N2主要来自亚硝酸盐和铵盐的氧化还原反应。自生O2则来自过硫酸盐和过氧化物的高温分解。自生CO2来自碳酸盐与酸的反应及含氮类有机物的高温分解。自生混合气包括高能气体和生物气,高能气体是火药或炸药爆燃产生的混合气,生物气是微生物代谢产生的混合气。自生气工作液在油气田现场已应用于固井、射孔、解堵、压裂、调剖和三次采油等广阔的领域。本文概述油气田开发开采中利用五大类自生气的19项工艺技术。参43。
The autogeneous gases used in oil/gas field working fluids and jobs are originated from chemical reactions or as microbial metabolites and can be divided into five classes. These are： autogeneous N2, formed in redox reactions between nitrites and ammonium salts; autogeneous active O2, formed in high temperature decomposition of per,sulfates and peroxides; autogeneous CO2, fromed in reactions of carbonates with acid（s） or in high temperature decomposition of organic nitrogeneous compounds; nascent ClO2 gas created from powdered chemicals; and autogeneous mixed gas, including here high energy gas from combustion of powder and explosive and biogas as metabolites of microorganisms. Working fluids containing gas-generating ingredients are used in oil/gas fields widely for well cementing, perforation, reservoir bolckage removal, fracturing, injectivity profile modification, tertiary oil recovery, and others. Totally 19 technologic means and measures with every class of autogeneous gas of 5 incorporated for use in oil/gas development and exploitation are presented in this review.
出处
《油田化学》
CAS
CSCD
北大核心
2007年第3期272-276,共5页
Oilfield Chemistry
关键词
自生气
泡沫水泥浆
自生泡沫
自生气凝胶泡沫
热气酸
高能气体
生物气
油田化学工艺技术
综述
autogeneous gases
foamed cement slurry
autogenic foam
autogenic gelled foam
heat-and gas-generating acid
high energy gas
biogas
oil field chemical methods and technologies
review
