物探与化探2017，Vol.41Issue(6)：1215-1219,5.DOI:10.11720/wtyht.2017.6.30
温度测井在东北冻土区天然气水合物勘查中的应用
The application of temperature logging to the gas hydrate resource exploration in permafrost areas of Northeast China
摘要
Abstract
The thickness of permafrost is an important factor for the formation and distribution of gas hydrate in permafrost areas.Recog nizing permafrost thickness accurately is significant for gas hydrate resource exploration in permafrost areas of Northeast China.Based on the characteristics of permafrost from temperature logging,the authors established the geothermal temperature model and carried out research on temperature logging data from the nine gas hydrate exploration holes.Some conclusions have been reached:(1) The temperature logging curve has an obvious inflection point at the bottom floor.The slope of the temperature logging curve above the inflection point is less than that under the inflection point.Using the temperature logging data can accurately recognize the permafrost bottom floor.(2) Too short hole over-flow water and drilling fluid equilibrium time can influence the accuracy of temperature logging data.The length of sunshine duration influences the development depth of permafrost.关键词
天然气水合物/温度测井/东北多年冻土/地温模型/冻土深度Key words
gas-hydrate/temperature logging/permafrost/geothermal temperature model/permafrost bottom depth分类
天文与地球科学引用本文复制引用
邱礼泉,刘东明,孔广胜,李洋,冯杰,林振洲,贾定宇,欧洋..温度测井在东北冻土区天然气水合物勘查中的应用[J].物探与化探,2017,41(6):1215-1219,5.基金项目
国家127专项“天然气水合物资源勘查与试采工程”项目(GZHL20110321,GZHL201400303) （GZHL20110321,GZHL201400303）
国家高技术研究发展计划(“863”计划)课题“金属矿小口径地下物探技术与设备”(2014AA06A608) （“863”计划）
