摘要
针对塔里木盆地大宛齐探区的地层情况和油气层损害机理 :较强的水敏性、盐敏性和碱敏性损害 ,以及中等程度的速敏性损害 ,无酸敏性损害发生 ;优选出能够有效保护油气层 ,并具有良好性能的正电胶钾基暂堵型钻井完井液。室内实验表明 ,使用该钻井完井液 ,岩样的渗透率恢复值可达 90 %以上。经 3口井现场试验 ,各层位的表皮系数均很低 。
The reservoirs have strong water sensitivity, salt sensitivity,alkali sensitivity and medium speed sensitivity, but no acid sensitivity in dawanqi area of Talim Basin. Based on the situation the temporal plugging type of drilling and completion fluids with mixed metal hydroxide potassium which can effectively protect reservoirs and have good performance are developed. Laboratory tests show that the permeability of core samples can be restored up to above 90 % by using the drilling and completion fluids. 3 wells testing results indicate all the skin factors of the wells are lower, and the target of formation damage control is achieved.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2003年第2期34-36,共3页
Natural Gas Industry
