摘要
针对文23气田采出程度高,地层压力低,气井结盐增多、结盐程度加重的特点,通过考察温度、压力等因素对气井结盐的影响,分析了气井结盐机理;通过对地层沉积环境,如储层岩性、物性,孔隙度、渗透率、流体流动速度以及岩石的表面性质等进行分析,开展了文23气田地层以及井筒结盐预测方法研究。旨在通过防盐技术调研现状和结盐机理研究,明确文23气田气井结盐机理以及温度和压力变化对气井结盐的影响规律。
In view of the characteristics of higher ratio of total oil produced to OOIP,lower reservoir pressure and more serious salt deposit in Wen23 gas field, the salt deposit mechanism of gas wells was analyzed through investigating the influences of temperature and pressure, etc. on the salt deposit of gas wells. Based on the analysis of sedimentary environment such as reservoir lithology, physical property, porosity, permeability, fluid mobility and the surface property of the rock, etc., the salt deposit prediction techniques for the strata and borehole of Wen23 Gas Field were studied.
出处
《钻采工艺》
CAS
北大核心
2011年第6期79-82,10,共4页
Drilling & Production Technology
基金
中国石油化工集团公司2009年先导试验项目"文23气田清防盐压裂液体系研究"部分研究成果
关键词
文23气田
温度
压力
天然气井
结盐
预测
研究
Wen23 gas field, temperature, pressure, gas well, salt deposit, prediction, research
