探矿工程-岩土钻掘工程Issue(6)：6-10,5.
羌塘盆地天然气水合物钻探试验井取样技术与施工实践
Sampling Technique in Gas Hydrate Drilling Test Well in Qiangtang Basin and the Construction Practice
摘要
Abstract
The test well engineering of gas hydrate drilling is located in northwest of Qiangtang basin with altitude about 4998~5100 meters, where the hydrogeological and engineering geological environment is extremely complex with the lowest annual mean ground temperature and thick permafrost in Qinghai Tibet Plateau.The construction is very difficult with cleavage, fracture, small fault and groundwater extremely developed.In this paper, the practice and experience of test well engineering of gas hydrate drilling in Qiangtang basin are summarized on the improvement of coring tool structure, bit de-sign, flushing fluid formulation and borehole structure, which could be reference to the exploration of gas hydrate and other mineral resources in high altitude regions in future.关键词
天然气水合物/钻探取样/钻探试验井/羌塘盆地Key words
gas hydrate/drilling sampling/drilling test well/Qiangtang basin分类
天文与地球科学引用本文复制引用
吴纪修,李宽,薛倩冰,李鑫淼,梁健,李小洋,张永勤..羌塘盆地天然气水合物钻探试验井取样技术与施工实践[J].探矿工程-岩土钻掘工程,2015,(6):6-10,5.基金项目
中国地质调查局天然气水合物勘查与试采专项（编号科［2013］GZHL－01－05）、“羌塘盆地天然气水合物资源勘查（钻探试验井工程）” （）
