天山南缘复杂山前构造钻井液技术难点及解决方案  

Mud Technical Difficulties of Drilling Fluid Used in Complex Piedmont Structures in the Southern Margin of Tianshan Mountain

作　　者：徐江[1] 党冰华[2] 谭春勤[1] 梅春桂[1] 张光辉[3] 施文 

机构地区：[1]中石化石油工程技术研究院,北京100101 [2]中石化华北分公司工程技术研究院,河南郑州450006 [3]中石化西南石油局湖南钻井公司,湖南长沙410000 [4]中石化中原油田分公司采油工程技术研究院,河南濮阳457000

出　　处：《石油天然气学报》2012年第12期105-107,8,共3页Journal of Oil and Gas Technology

基　　金：中国石油化工集团公司科技项目(P09004)

摘　　要：针对天山南缘山前构造地层复杂,异常高压流体、强塑性膏泥岩普遍存在,钻井液维护处理难度大的问题,对该区块相关资料进行分析研究,总结出该区块钻井液技术的关键点是,提升钻井液体系抑制水化能力;提升钻井液体系防塌能力;增大钻井液固相容量限。以此为依据选用强抑制高钙盐聚胺钻井液体系,并在该区块一口重点探井——DuH4井进行了现场施工,取得了较好的应用效果。In allusion to the problems such as complex formation,abnormal high pressure in fluid,high plaster-slime rocks and difficult treatment of drilling fluid maintenance,the related data from the area were analyzed.The key factors of the drilling fluid were summed up,which included the improvement of water inhibition capacity,the anti-collapse ability of the drilling fluid and raising its solid limitation.Based on the study,a polyamine drilling fluid system is chosen and it is successfully used in the key Exploration Well DuH4,good result is obtained.

关 键 词：钻井液 聚胺 山前构造 膏泥岩 异常高压 井壁失稳 塔里木盆地 

分 类 号：TE254[石油与天然气工程—油气井工程]