高密度低失水泥浆体系在煤田绳索取心钻探中的应用研究  

Application of High Density and Low Filtration Drilling Fluid System in Wire-line Coring Drilling of Coalfield Exploration

作　　者：陈尔志[1,2] 陈礼仪[1,2] 向昆明[2,3] 章述 尹亮先 李跃成[3] 

机构地区：[1]地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [2]成都理工大学,四川成都610059 [3]四川省煤田地质局137地质队,四川达州635006

出　　处：《探矿工程（岩土钻掘工程）》2011年第2期15-18,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：煤田钻探中,经常会遇到比较破碎、易坍塌、易水化膨胀等复杂地层,给钻进造成较大的困难。开发了具有良好的防塌性能、较好的抑制性并具有适当密度的高密度低失水泥浆体系。现场使用证明,该泥浆体系在煤田小口径金刚石绳索取心钻探中能很好维持孔壁稳定、有效抑制泥页岩的水化膨胀,降低孔内事故的发生率。It is very difficult in the coalfield drilling process because rather complex strata are usually encountered;such as breaking layer,collapsing layer and hydration expansive layer.Heavy density and low filtration drilling fluid system were developed with anti-sloughing,inhibiting and proper density.Field application proves that the drilling fluid system can perfectly maintain borehole stability and effectively inhibit the hydration expansion of mud stone and shale with the accident rate in wire-line coring drilling decreased.

关 键 词：泥浆体系 高密度 低失水 煤田钻探 绳索取心钻探 

分 类 号：P634.6[天文地球—地质矿产勘探]