钻头钻削桥塞过程受力分析与试验研究

兰乘宇; 丁宇奇; 刘巨保; 戴子威; 周辉宇; 刘玉喜

doi:10.11911/syztjs.2018032

钻头钻削桥塞过程受力分析与试验研究

1.
东北石油大学机械科学与工程学院, 黑龙江大庆 163318;
2.
中国石油大庆油田有限责任公司井下作业分公司, 黑龙江大庆 163453

基金项目:

中国石油科技创新"埋地长输油气管道外爆失效机理的多相耦合动力学响应研究"（编号：2017D-5007-0610）、国家自然科学"大型圆柱薄壳内爆破坏机理的多场耦合动力学响应研究"（编号：51604080）、中国石油和化学工业联合会科技指导计划项目"立式拱顶储罐内爆破坏机理的多场耦合动力学响应与弱顶性能研究"（编号：2016-01-01）资助。

详细信息

作者简介:
兰乘宇(1968-),男,黑龙江宾县人,1993年毕业于西安石油学院采油工程专业,高级工程师,主要从事油田储层压裂、大修井作业、科研管理等方面的工作。

通讯作者:
丁宇奇,jslx2004@163.com

中图分类号: TE21
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出版历程
- 收稿日期: 2017-06-08
- 修回日期: 2017-10-31
- 刊出日期: 1899-12-31

Force Analysis and Test of Bridge Plug Drilling

1.
College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing, Heilongjiang, 163318, China;
2.
Downhole Service Company, PetroChina Daqing Oilfield Co. Ltd., Daqing, Heilongjiang, 163453, China

摘要

摘要: 为了定量分析和控制连续油管钻头钻削桥塞过程中的钻压和扭矩，预防钻屑过大，返屑困难，对复合桥塞钻削过程进行了力学分析。通过建立连续油管钻头钻削桥塞过程力学分析模型，分析了钻头钻压与压入深度和扭矩与切屑之间的力学关系，得到了钻压、扭矩与切削深度的力学方程。为验证该力学方程计算结果的准确性，在2口井进行了现场试验，共钻掉9个桥塞。试验显示，计算结果与现场试验结果的最大相对误差为15%，可满足预测实际钻塞深度的精度需求。研究结果表明，建立的连续油管钻头钻削桥塞过程力学分析模型可以描述钻压、扭矩与切削深度之间的力学关系，对桥塞钻削施工中钻压与扭矩的控制具有指导意义。
- 连续油管 /
- 钻头 /
- 桥塞 /
- 钻压 /
- 扭矩 /
- 切削深度
Abstract: To quantitatively control weights on bit(WOBs) and torques of the coiled tubing bit in the drilling of a bridge plug,and to eliminate problems related to oversize cuttings during the process,mechanical analyses were performed for the cutting of the compound bridge plug.By constructing the mechanical model for the cutting of bridge plug by the coiled tubing bit,the relationships among WOBs,drilling depths,torques and cutting volumes were analyzed to derive the dynamic equation for WOBs,torques and cutting depths.To confirm the accuracy of relevant calculation results,field tests were conducted in two wells to drill 9 bridge plugs.Test results showed the maximum relative error between calculation result and field application result was 15%,which was sufficient to satisfy accuracy demands at the expected plug-drilling depths.Research results showed the newly derived mechanical analyzing model for coil tubing bit to cut bridge plug could accurately high light correlation among WOBs,torques and cutting depths.The model is great significance to control the WOBs and torques in bridge plug drilling.
- coiled tubing /
- bit /
- bridge plug /
- weight on bit /
- torque /
- cutting depth

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参考文献(13)

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施引文献(3)

期刊类型引用(2)

1.	沈如芳，马卫国，陈婷. 基于ABAQUS的复合桥塞钻削仿真及其性能分析. 石油机械. 2020(02): 42-47+79 . 百度学术
2.	胡琴，李志强，任航. 模糊正交法在弧形盘式齿破岩性能评价中的应用. 断块油气田. 2019(03): 389-393 . 百度学术