哈得逊地区二叠系火成岩钻井钻井液配方优选室内实验研究

PetroChina Tarim Oilfield Company

摘要:

塔里木油田哈得逊地区二叠系火成岩层段微裂缝多、节理丰富易塌易漏，一直是制约该地区钻井速度的主要原因。针对火成岩易漏易塌的钻井难点，从钻井液性能方面入手，通过室内实验优选出强封堵抑制剂（环保型低荧光成膜降滤失剂CMF），聚磺体系钻井液配方，实验表明：该配方钻井液具有流变性好、滤失量低、抑制性强的特点，起到了有效的封堵作用。

Abstract:

In Tarim oilfield of Hudson area, drilling efficiency has been restricted mainly because of the existing micro fractures and joints in Permian igneous rock. According to this drilling difficulty, strong sealing inhibitor was tested for optimization in laboratory. The experiment showed the polysulphonate drilling fluid has good rheology, low filter loss and strong inhibition.