测井技术2018，Vol.42Issue(2)：235-237,3.DOI:10.16489/j.issn.1004-1338.2018.02.020
大直径旋转井壁取心仪研制与应用
Development and Application of the Large Diameter Rotary Sidewall Coring Tool
摘要
Abstract
Traditional hydraulic driven rotary sidewall coring tool have the problems of low bit torque and low core recovery rate.To solve these problems,this paper developed a Large-Diameter Rotary Sidewall Coring Tool(LRCT)with a maximum torque of 8 N·m based on a DC motor driven drill.In addition,a detailed introduction to the coring probe is also made in this article,as well as the structure,performance indicators and working principle of the tool.The tool has been widely used in many geological blocks of different oilfields.According to statistics, the coring recovery rate is over 90%.关键词
井壁取心/直流电机驱动/扭矩/取心收获率Key words
sidewall coring/DC motor drive/torque/core recovery rate分类
天文与地球科学引用本文复制引用
牛延吉,刘先平,嵇成高,蔡井维,李伟,李卫强..大直径旋转井壁取心仪研制与应用[J].测井技术,2018,42(2):235-237,3.基金项目
渤海钻探工程有限公司项目(2016ZD04K、2016B02K) （2016ZD04K、2016B02K）
天津市企业博士后创新项目择优资助计划资助项目 （）
