PDF-PLUS聚胺聚合物钻井液在RM19井的应用  

The Application of a Polyamine Drilling Fluid PDF-Plus in Well RM-19

作　　者：胡进军[1] 邓义成[1] 王权伟[1] 

机构地区：[1]中海油田服务股份有限公司油田化学事业部

出　　处：《钻井液与完井液》2007年第6期36-39,共4页Drilling Fluid & Completion Fluid

摘　　要：RM19井位于R岛北部,该区地层岩性主要为含蒙脱石、伊/蒙混层的软泥岩,构造复杂,解释模型待证实;地层倾角大、断层发育,存在多个推覆体、多个破碎带,地层压力为异常高压,地温梯度较高(达4.6℃/100 m左右)。针对该地区地层的特点,在RM19井311.1 mm井段应用了PDF-PLUS聚胺聚合物钻井液。该钻井液抑制性强,在高温高密度下仍具有良好的流变性和抗温稳定性、低的滤失性和良好的润滑性,有利于钻井液性能的稳定和预防高温高密度情况下的压差卡钻。介绍了该钻井液的室内研究和现场应用情况。Well RM-19,located in the north of R island,penetrated formations with high content of montmorillonite,illite/montmorillonite mixed layer.In these high-angled formations,faults were developed,and several nappes and broken belts existed.Abnormal pressure and high temperature gradients(as high as about 4.6 ℃/100 m) made drilling operation full of difficulties.A PDF-Plus polyamine drilling fluid was tried in the  311.1 mm section of the well RM19.This polyamine drilling fluid is a highly inhibitive,temperature stable mud with low filter losses and good lubricity.This paper introduced the laboratory studies and field application of this mud.

关 键 词：高密度钻井液 高温钻井液 聚合物钻井液 聚胺钻井液 抑制性 流变性 

分 类 号：TE254.3[石油与天然气工程—油气井工程]