直井连续油管井下校深方法及机械式套管接箍定位器的应用  

Depth Correction Method of Coiled Tubing in Vertical Well and the application of mechcanical casing collar locator

作　　者：姜勇[1,2] 海显莲[3] 徐鹏 杨敏[5] JIANG Yong;HAI Xian-lian;XU Peng;YANG Min(Oil and Gas Technology Research Institute,Changqing Oilfield Company,Xi’an;State Engineering Laboratory of Low Permeable Oil and Gas Field Exploration and Development,Xi’an;Gas Production plant 2 of Changqing Oilfield Company,Xi’an;Technical testing center of Changqing Oilfield Company,Xi’an;Oil Production plant 5 of Changqing Oilfield Company,Xi’an)

机构地区：[1]长庆油田分公司油气工艺研究院 [2]低渗透油气田勘探开发国家工程实验室 [3]长庆油田分公司第二采气厂 [4]长庆油田分公司技术检测中心 [5]长庆油田分公司第五采油厂,陕西西安710021

出　　处：《内蒙古石油化工》2022年第2期13-17,共5页Inner Mongolia Petrochemical Industry

摘　　要：针对连续油管自有深度计量设备在井下作业中难以精确定位的问题,介绍了深度误差的产生来源和国内外目前常用的理论计算校深、人工井底校深、机械套管接箍定位器校深及无线套管接箍定位器校深四种连续油管井下定位方法。通过对四种井下定位方法的对比,得出机械式套管接箍定位器法定位准确,研发难度小,且成本低。鉴于此,进行了机械式套管接箍定位器结构设计、工作原理研究,并经过室内试验和现场试验论证,性能指标满足现场要求,取得了预期效果。In view of the problem that coiled tubing’s depth is difficult to know when it is downhole operating, the reasons of depth error and calculation depth correction method, depth correction based on artificial bottom hole, mechcanical casing collar locator and wireless casing collar locator depth correction methods are introduced in this paper, these four depth correction methods are in common use.Through the comparison of four kinds of downhole positioning method, mechanical casing collar locator is accurate in positioning, easy in development, and low in costs. Accordingly, mechanical casing collar locator was developed. Passed through laboratory and field test of justification, performance indicators met site requirements, achieved the desired results.

关 键 词：连续油管 定位 校深 定位器 套管接箍 

分 类 号：TE925[石油与天然气工程—石油机械设备]