石油钻采工艺2011，Vol.33Issue(4)：45-47,3.
抗高温无固相钻井液研究
A solid free drilling fluid with high temperature resistance
摘要
Abstract
The formation temperature of carbonate reservoir with the depth of 4000 m may be more than 150 ℃, so the common solid free drilling fluid cannot meet the requirement. By comparing the ratio of yield point to plastic vicosity and temperature resistant limit, viscosifying agents VP and XC are selected. And the fluid loss additives are optimized through the thermal analysis and filtration experiments. Finally, a type of high temperature resistant solid free drilling fluid is formed, with the composition of 3%CMJ+2%RHJ+ 0.2%XC+0.3%VP+3%SMP-2+l%~ saturated NaCOOH. The test results show that the system can resist 200 ℃ and 20% drilling cuttings, and the calcium tolerance is 5% and salt tolerance is 20% or more. And the extreme pressure lubrication coefficient is 0.098 and permeability recovery value is above 90%, which can meet the requirements of drilling deep carbonate reservoir and demonstrate good deep fractured carbonate reservoir protection performance.关键词
高温/无固相/钻井液/碳酸盐岩/储层保护Key words
high temperature/ solid free/ drilling fluid/ carbonate formation/ formation damage control分类
能源科技引用本文复制引用
张洁,孙金声,杨枝,葛云华,张绍云,王建华..抗高温无固相钻井液研究[J].石油钻采工艺,2011,33(4):45-47,3.基金项目
国家科技重大专项“深井钻录、测试技术和配套装备”课题2“碳酸盐岩、火成岩及酸性气藏高效安全钻完井技术”(编号:2008ZX05021-002)及中石油海外重大专项阿姆河右岸气田钻完井主体技术研究(编号:2008E-16-09)资助. （编号:2008ZX05021-002）
