深地塔科1井钻柱井下冲击扭矩形成机制及控制方法

王春生; 李宁; 冯少波; 王文昌; 文亮; 周宝; 狄勤丰

doi:10.7623/syxb202606011

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深地塔科1井钻柱井下冲击扭矩形成机制及控制方法

石油工程 | 更新时间：2026-07-10

- 深地塔科1井钻柱井下冲击扭矩形成机制及控制方法
- Formation mechanism and control method of downhole impact torque of drill string in the Well SDTK-1
- 石油学报 2026年47卷第6期页码：1267-1277
- 作者机构：
  
  1. 中国石油塔里木油田公司,新疆,库尔勒,841000
  2. 中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心,新疆,库尔勒,841000
  3. 新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆,库尔勒,841000
  4. 新疆超深油气重点实验室,新疆,库尔勒,841000
  5. 上海大学力学与工程科学学院,上海,200444
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202606011
  中图分类号： TE245
- 网络首发：2026-07-02，
  
  纸质出版：2026
- 稿件说明：
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王春生, 李宁, 冯少波, 王文昌, 文亮, 周宝, 狄勤丰. 深地塔科1井钻柱井下冲击扭矩形成机制及控制方法[J]. 石油学报, 2026, 47(6): 1267-1277.

Wang Chunsheng, Li Ning, Feng Shaobo, et al. Formation mechanism and control method of downhole impact torque of drill string in the Well SDTK-1[J]. ACTA PETROLEI SINICA, 2026, 47(6): 1267-1277.
王春生, 李宁, 冯少波, 王文昌, 文亮, 周宝, 狄勤丰. 深地塔科1井钻柱井下冲击扭矩形成机制及控制方法[J]. 石油学报, 2026, 47(6): 1267-1277. DOI： 10.7623/syxb202606011.

Wang Chunsheng, Li Ning, Feng Shaobo, et al. Formation mechanism and control method of downhole impact torque of drill string in the Well SDTK-1[J]. ACTA PETROLEI SINICA, 2026, 47(6): 1267-1277. DOI： 10.7623/syxb202606011.

摘要

中国首口万米特深井——深地塔科1井(SDTK-1井)的测量结果表明

在钻井作业中

钻具螺纹接头二次上扣(进扣)现象时有发生

说明井下钻具承受超过上扣扭矩的冲击扭矩作用。这种冲击扭矩不仅会造成钻具螺纹接头卸扣困难

还会引起螺纹接头失效

严重影响钻井作业的安全

因此亟须探明其形成的动力学机制

并形成有效控制方法。结合自行研发的钻柱动力学模拟程序和ABAQUS软件对深地塔科1井钻柱承受的井下冲击扭矩的形成机制进行了研究。首先

基于Hamilton原理建立了钻柱动力学模型

并利用Newmark方法和SOR有限元节点迭代法对钻柱动力学特征进行了求解

随后建立了井下冲击扭矩计算模型

并以深地塔科1井8 269.0~8 503.0 m井段所用钻具组合为例

分析了井下钻具组合在发生粘滑振动时的运动特征及承受的冲击扭矩。结果表明:钻柱自转引起的冲击扭矩较小

不足以引起"二次上扣"现象的发生;钻柱在井下发生粘滑振动时极易形成超过上扣扭矩的井下冲击扭矩。其中

伴随粘滑振动滑脱阶段的强烈涡动产生了很大的冲击扭矩

可达87.4 kN·m

远大于上扣扭矩

导致了“二次上扣”现象的发生。计算结果与实际卸扣扭矩仅相差2.8 %

说明了计算结果的可靠性。理论分析结果表明

减少粘滑振动是有效的冲击扭矩控制方法

但对于特深井段钻井作业来说比较困难;而通过使用双台肩螺纹接头可有效提高钻具的抗冲击扭矩能力。深地塔科1井在近万米井深时采用了双台肩螺纹接头钻具

尽管“二次上扣”现象仍然存在

但基本消除了螺纹接头微裂纹的形成

证明了这种方法的有效性。

Abstract

The measurement results show that during the drilling operation of China's first 10 000-meter ultra-deep well-the SDTK-1 well

the phenomenon of secondary makeup of threaded joint occurs frequently

indicating the presence of downhole impact torque that exceeds the make-up torque. The impact torque can not only cause difficulties in tool breakout but may also lead to failure of downhole drill string connections

severely compromising drilling safety. Therefore

it is crucial to understand the dynamic mechanism of impact torque and form effective control methods. This paper studies the formation mechanism of downhole impact torque endured by the drill tool of the SDTK-1 well by combining the self-developed drill string dynamics simulation program and ABAQUS software. Firstly

a finite element dynamic model of the drill string was established based on Hamilton’s principle

and solved by using the Newmark method and the SOR node iteration method. Then a model for calculating downhole impact torque was developed based on the analysis of the drill string dynamics under different operating conditions. Subsequently

taking the drill string used in the hole section of 8 269.0-8 503.0 m of the SDTK-1 well as an example

the whirl characteristics and the formed impact torque of the downhole drill string when stick-slip vibration occurs were analyzed. The results show that the impact torque caused by the self-rotation of the drill string is relatively small and insufficient to cause the occurrence of the "secondary makeup" phenomenon. When the drill string undergoes stick-slip vibration

it is very likely to form an underground impact torque. In this case

the intense whirl motion accompanying the slippage stage of stick-slip vibration generates a large impact torque

which can reach 87.4 kN ·m

much greater than the makeup torque. It is precisely this impact torque that leads to secondary makeup of thread connection. The deviation between the calculated result and the actual breakout torque is only 2.8 %

demonstrating the reliability of the model. Theoretical analysis results show that reducing stick-slip vibration is an effective method to control impact torque

but it is rather difficult for ultra-deep well drilling operations. However

using double-shoulder threaded connections can effectively enhance the drill string’s resistance to impact torque. In the drilling operation of the SDTK-1 well at a depth of nearly 10 000 meters

the drill string with double-shoulder threaded connections was adopted

which basically eliminated the formation of micro-cracks in the threaded connections

although the phenomenon of secondary make-up still occurred

proving the effectiveness of this method.

关键词

Keywords

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