分析水平卷轴管道与初始残留曲的侧侧形曲后变形
Zhuang Li1, Liangyu Chen1, Fei Yuan1
1School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning Province, China.
PloS one
|May 14, 2024
概括
这项研究模拟了水平井施工期间卷状管道的曲,揭示了初始曲显著影响变形和接触力. 更快的压缩增加了井壁的力量,为复杂的下井操作提供了新的见解.
科学领域:
- 石油工程是石油工程中的一个.
- 机械工程 机械工程
- 地质物理学 地质物理学
背景情况:
- 水平井建设呈现出复杂的下井环境.
- 由于间接负载测量,测量井口内的卷轴管变形和力是具有挑战性的.
- 在卷轴管道中,最初的残留曲可能来自卷轴包裹和注射头通道.
研究的目的:
- 建立一个数学模型,用于卷轴管在轴承负载下曲,并纳入初始剩余曲.
- 分析残余曲对水平井中正弦后曲行为的影响.
- 研究剩余曲变化对井壁接触力和临界曲点的影响.
主要方法:
- 开发一个数学模型,用于卷轴管道的曲.
- 通过模型简化,导出包括时间项在内的分析解决方案.
- 应用分离变量方法来研究残余曲的影响.
- 基于剩余曲变化对井壁接触力的分析.
主要成果:
- 最初的参数G被确定为影响余曲线后侧侧曲的主要因素.
- 增加的G值会放大残余曲对曲变形的影响,并推进混合正弦螺旋曲的临界点.
- 卷轴管的压缩速度显著影响井壁接触力,更快的压缩导致更高的力.
结论:
- 最初的残留曲是水平井操作期间卷状管道曲的关键因素.
- 开发的模型和分析解决方案提供了一种新的方法来理解具有初始缺陷的曲现象.
- 这些发现为优化卷轴管道操作和减轻下井风险提供了理论基础.
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