海上Μ气井泡沫排液体系筛选及性能评价  

Foam discharge system screening and pevaluation of M gas wells offshore

作　　者：胡雪 郑继龙 赵军 陈平 吴彬彬 刘浩洋 HU Xue;ZHENG Jilong;ZHAO Jun;CHEN Ping;WU Binbin;LIU Haoyang(Engineering Technology Branch of CNOOC Energy Development Co.,Ltd.,Tianjin 300452,China;State Key Laboratory of Offshore Oil Efficient Development,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452 [2]海洋石油高效开发国家重点实验室,天津300452

出　　处：《精细石油化工进展》2021年第3期6-9,共4页Advances in Fine Petrochemicals

摘　　要：在油气田开发过程中,随着地层能量的降低,气井产水量大幅上升,当井筒积液量达到一定高度时会造成生产井井口油套压降低,最终影响气井产气量及采收率。泡沫排液采气技术能有效排除气井井筒积液量,提高气井产能及采收率,但需对泡排体系进行筛选,并对其性能进行评价研究。本文基于搅拌法、泡沫扫描仪法对海上Μ气井泡排体系进行筛选,并通过泡排采气动态装置对所筛选的泡排体系动态性能进行评价,结果表明:质量分数为0.5%的泡排剂F20205对目标井的井筒积液排液效率超过75%。During the development of oil and gas fields,as the formation energy decreased,the water production of gas wells rised sharply. When the liquid accumulation in the wellbore reached a certain height,the oil casing pressure at the wellhead of the production well decreased,which ultimately affected the gas production and recovery rate of the gas well. Foam drainage gas recovery technology could effectively eliminate the liquid accumulation in the gas wellbore,improve the gas well productivity and recovery rate,but it was necessary to screen the foam drainage system and evaluate its performance. Based on the agitation method and the foam scanner method,the M gas well foam discharge system was screened. The dynamic performance of the selected foam discharge system was evaluated by foam drainage dynamic device. The experimental results showed that the best system was of 0.5%(mass fraction)F20205 bubble row.

关 键 词：气井 井筒积液 泡沫排液采气 泡排剂 

分 类 号：TE53[石油与天然气工程—油气田开发工程]