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首页» 过刊浏览» 2017» Vol. 2» Issue (2) 279-287     DOI : 10.3969/j.issn.2096-1693.2017.02.026
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深水低压井口下入工具结构设计与承载特性分析
阚长宾1,杨进1,周建良2,刘书杰2,张思敏3,胡南丁1,殷启帅1
1 中国石油大学(北京)石油工程学院 北京 102249 2 中海石油研究总院 北京 100027 3 清华大学机械工程学院 北京 100084
Configuration design and bearing characteristics analysis on running tool of deepwater conductor wellhead
KAN Changbin1, YANG Jin1, ZHOU Jianliang2, LIU Shujie2, ZHANG Simin3, HU Nanding1, YIN Qishuai1
1 School of Petroleum Engineering, China University of Petroleum-Beijing, Beijing 102249, China 2 Research Institute of CNOOC, Beijing, 100027, China 3 School of Mechanical Engineering, Tsinghua University, Beijing 100084,China

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摘要  深水低压井口下入工具是低压井口管柱的唯一平台转移和钻台下入工具,影响着深水导管的安全高效下入作业。为打破国外技术服务公司的长期技术垄断,通过对深水低压井口下入工具的结构设计、工作原理、工作过程及深水钻井平台操作工况、作业程序、作业关键技术难题的研究,设计了一种采用圆头T型卡簧推杆、锥面轴套及卡簧相配合的新型深水低压井口下入工具的锁紧与释放结构;应用该锁紧与释放设计结构并配合安装导向头设计结构,可使下入工具适应于深水恶劣操作工况条件;通过对不同作业工况条件下的承载力学特性分析和操作过程仿真分析,研究了结构系统安全性及工具锁紧与释放过程的可行性;数值模拟分析表明,起吊、下入最危险操作工况条件下,许用应力安全系数分别为3.87、4.98。本研究可为安全、高效地开展深水低压井口头平台转运及下入作业提供一种新的设计思路和方法。
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关键词 : 深水钻井, 下入工具, 结构设计, 承载特性, 仿真分析
Abstract

  Conductor wellhead running tool is the only operating practice to transfer or to run in/out the conductor pipe on platform deck, and it is a key factor on deepwater conductor running. But the related technologies were monopolized by several monopolistic companies abroad. In this paper, one kind of novel locking and releasing mechanical configuration was presented by studying running tool structure, operating principle, operating procedure, as well as operating behavior on semi-submerged platform, job procedure and technical problems on running.It was constructed with T-shaped-round-tip thrusting rod, pyramidal axle sleeve, and circlip. The locking and releasing mechanical structure equipped with guiding mechanism would qualified the running tool to apply in deepwater harsh operating conditions. The stability, the credibility, and the safety of the running tool were conducted by the study on bearing characteristics, operating simulation and finite element simulation on different operating status. The simulation results show that the safety factor of allowable stress is respectively 3.87 and 4.98 under the condition of transferring working procedure and running-in working procedure. By this way, the high cost of deepwater drilling caused by foreign technological embargo in China could be reduced.

Key words: deepwater drilling running tool configuration design bearing characteristics virtual simulation
收稿日期: 2016-11-13     
PACS:    
基金资助:国家自然科学基金“海洋深水浅层钻井关键技术基础理论研究”(51434009)和国家十三五重大专项“深水表层管柱高效下入技术及深部复杂地层井壁稳定研究”(2016ZX05032004-003)联合资助
通讯作者: 杨进, cyjin1018@vip.sina.com
引用本文:   
阚长宾,杨进,周建良,刘书杰,张思敏,胡南丁,殷启帅. 深水低压井口下入工具结构设计与承载特性分析[J]. 石油科学通报, 2017, 2(2): 279-287. KAN Changbin, YANG Jin, ZHOU Jianliang, LIU Shujie, ZHANG Simin, HU Nanding, YIN QishuaiKAN Changbin1, YANG Jin1, ZHOU Jianliang2, LIU Shujie2, ZHANG Simin<. Configuration design and bearing characteristics analysis on running tool of deepwater conductor wellhead. Petroleum Science Bulletin, 2017, 2(2): 279-287.
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