空气雾化钻井井壁稳定剂的室内评价研究  

EVALUATION OF SHALE HYDRATION/SWELLING INHIBITORS FOR MISTED AIR DRILLING

作　　者：王煦[1] 杨世 赵晓东[1] 罗平亚 

机构地区：[1]西南石油学院化工系,四川南充637001

出　　处：《油田化学》2000年第2期107-109,136,共4页Oilfield Chemistry

基　　金：中国石油天然气总公司"八五"科研项目!"空气雾化钻井技术研究"的一部分工作成果

摘　　要：采用“化学剂的水化膨胀抑制率”作评价指标 ,对一些典型的水基泥浆页岩水化抑制剂及两种自制成膜剂进行了室内评价研究。结果表明 :在空气雾化钻井中应用水基泥浆钻井的页岩水化抑制剂对稳定井壁有一定的作用 ,但不理想 ,而成膜剂却具有稳定井壁的良好效果。Five commercial shale hydration/swelling inhibitors used in water base drilling fluids and two film forming polymers are evaluated for core hydration/swelling inhibition rate, I p, by an improved needle penetration method on a misted air drilling simulation experimental installation. It is shown that the inhibitors commonly used in water base fluids can be applied to misted air drilling only with limited success and the polymers forming film on core pore surfaces are effective borehole stabilizers for misted air drilling.

关 键 词：空气雾化钻井 井壁稳定剂 室内性能评价 钻井液 

分 类 号：TE254.1[石油与天然气工程—油气井工程] TE242.6