抗温180℃水包油钻井液研究及应用  

Study and application of anti-temperature 180 ℃ oil-in-water drilling fluid

作　　者：马文英[1] 刘彬[2] 卢国林[1] 王玉海[3] 李保慧[1] 

机构地区：[1]中国石化集团中原石油勘探局钻井工程技术研究院.河南濮阳457001 [2]中联煤层气有限责任公司晋城分公司,山西晋城048000 [3]中国石化集团中原石油勘探局钻井一公司,河南濮阳457331

出　　处：《断块油气田》2013年第2期228-231,共4页Fault-Block Oil & Gas Field

摘　　要：针对低压储层钻井保护油气层的要求，通过室内研究形成了油水比为7：3～3：7的水包油钻井液，密度在0．88—0．97g／cm3可调，抗温达180℃，具有良好的乳化稳定性和流变性，防塌能力强，在城深7井和城深9井的现场应用结果显示，研究的水包油钻井液性能稳定，具有良好的抗高温、抗CO2污染能力，有利于安全快速钻井和发现、保护油气层，能够满足深井近平衡、欠平衡钻井的要求。Aimed at the requirement of low pressure reservoir protection, the oil-in-water drilling fluid with the oil-water ratio of 7：3- 3：7 is formed through the laboratory study. The density of oil-in-water drilling fluid is 0.88-0.97 g/cm3 and the anti-temperature can reach 180 ℃. The oil-in-water drilling fluid has good emulsion stability and rheologiealproperty. It has successfully been applied in Wells Chengshen 7 and 9. The results show the oil-in-water drilling fluid studied in this paper has good anti-high temperature ability and anti CO2 capaeity, and the drilling fluid performance is stable, which is benefit to the safe and fast drilling, anti can protect the reservoir. The anti-temperature oil-in-water drilling fluid can meet the requirements of the nearly balaneed or underbalanced drilling of deep well.

关 键 词：水包油钻井液 低密度 抗高温 抑制性 抗污染 

分 类 号：TE254[石油与天然气工程—油气井工程]