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工程设计学报
工程设计学报  2021, Vol. 28 Issue (5): 602-614    DOI: 10.3785/j.issn.1006-754X.2021.00.083
建模、仿真、分析与决策     
新型钻杆的携岩原理研究与数值仿真分析
王志亮1, 陈锟1, 张震2, 周旺明3, 黄和祥1, 夏成宇1
1.长江大学 机械工程学院， 湖北 荆州 434023
2.中国石油天然气股份有限公司 西南油气田分公司页岩气研究院， 四川 成都 610056
3.长庆油田分公司机械制造总厂， 陕西 西安 710201
Study on cuttings carrying principle and numerical simulation analysis of new drill pipe
WANG Zhi-liang1, CHEN Kun1, ZHANG Zhen2, ZHOU Wang-ming3, HUANG He-xiang1, XIA Cheng-yu1
1.School of Mechanical Engineering， Yangtze University， Jingzhou 434023， China
2.Shale Gas Research Institute of Southwest Oil & Gasfield Company， PetroChina Company Limited， Chengdu 610056， China
3.Changqing Oilfield Company Machine Manufacture Plant， Xi’an 710201， China
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摘要： 随着川渝地区的钻井深度不断增大，管柱在下入过程中易受到井内岩屑的影响，进而出现卡钻现象，甚至发生钻具断裂等重大事故。为了提高川渝地区页岩气水平井内的岩屑运移能力，设计了2种新型钻杆——悬浮式铝合金钻杆和新型脉冲射流钻杆，并与普通钻杆进行对比分析。首先，对3种钻杆的结构与携岩原理进行理论分析。然后，在ANSYS软件中建立3种钻杆的携岩仿真模型，通过采用不同的网格划分方法来验证各仿真模型的网格无关性与收敛性，并利用搭建的室内岩屑运移装置验证了仿真模型的准确性。最后，在岩屑粒径、钻井液入口排量和井斜角等因素改变的情况下，对3种钻杆的携岩能力进行了仿真分析。结果表明，悬浮式铝合金钻杆和新型脉冲射流钻杆的携岩能力相比普通钻杆有所提高。研究结果对提高水平井内的岩屑运移速度、改善井眼清洁度和减少岩屑床生成具有重要意义。
Abstract: With the continuous increase of drilling depth in Sichuan and Chongqing, the pipe string is vulnerable to the influence of cuttings in the well during running, resulting in stuck drilling, and even major accidents such as drilling tool fracture. In order to improve the cuttings transport capacity in shale gas horizontal wells in Sichuan and Chongqing, two new types of drill pipes, the suspended aluminum alloy drill pipe and the new pulse jet drill pipe, were designed and compared with the ordinary drill pipe. Firstly, the structure and cuttings carrying principle of three kinds of drill pipes were analyzed theoretically. Then, the cuttings carrying simulation models of three kinds of drill pipes were established in the ANSYS software, and different grid division methods were used to verify the grid independence and convergence of each simulation model, and the accuracy of the simulation model was verified by using the indoor cuttings transport device. Finally, the cuttings carrying capacity of three kinds of drill pipes was simulated and analyzed under the change of cuttings particle size, drilling fluid inlet displacement and well inclination angle. The results showed that the cuttings carrying capacity of the suspended aluminum alloy drill pipe and the new pulse jet drill pipe was higher than that of the ordinary drill pipe. The research results are of great significance to improve the transport velocity of cuttings in the horizontal wells, improve the cleanliness of wellbore and reduce the formation of cuttings bed.
收稿日期: 2021-04-06 出版日期: 2021-10-28
CLC:  TH 112.4  
基金资助: 国家自然科学基金资助项目（51405032）；页岩油气国家重点实验室开放基金资助项目（20-YYGZ-KF-GC-16）；非常规油气省部共建协同创新中心开放基金资助项目（UOG2020-04）
通讯作者: 黄和祥（1970—），男，湖北天门人，副教授，硕士，从事管柱力学和机械设计及仿真分析研究，E-mail：373531706@qq.com，https：//orcid.org/0000-0001-8953-7135     E-mail: 373531706@qq.com
作者简介: 王志亮（1996—），男，湖北仙桃人，硕士生，从事管柱力学与岩屑运移研究，E-mail：769350002@qq.com，https：//orcid.org/0000-0002-9497-1881；
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引用本文:

王志亮, 陈锟, 张震, 周旺明, 黄和祥, 夏成宇. 新型钻杆的携岩原理研究与数值仿真分析[J]. 工程设计学报, 2021, 28(5): 602-614.

WANG Zhi-liang, CHEN Kun, ZHANG Zhen, ZHOU Wang-ming, HUANG He-xiang, XIA Cheng-yu. Study on cuttings carrying principle and numerical simulation analysis of new drill pipe. Chinese Journal of Engineering Design, 2021, 28(5): 602-614.

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https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2021.00.083    或    https://www.zjujournals.com/gcsjxb/CN/Y2021/V28/I5/602

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