全井钻柱系统多体动力学模型

doi:10.7623/syxb201304017

石油学报 ›› 2013, Vol. 34 ›› Issue (4): 753-758.DOI: 10.7623/syxb201304017

全井钻柱系统多体动力学模型

程载斌¹, 姜伟², 任革学³, 周建良¹, 蒋世全¹, 杨蔡进³, 何保生⁴

1. 中海油研究总院技术研发中心北京 100027;
2. 中国海洋石油总公司工程技术部北京 100010;
3. 清华大学航天航空学院力学系北京 100084;
4. 中海油研究总院钻采研究院北京 100027

收稿日期:2013-01-13 修回日期:2013-04-18 出版日期:2013-07-25 发布日期:2013-07-04
通讯作者: 程载斌
作者简介:程载斌,男,1978年8月生,2001年获太原理工大学学士学位,2008年获中国科学院力学研究所博士学位,现为中海油研究总院技术研发中心钻井工程师,主要从事旋转导向钻井、钻井工程力学研究。Email:chengzb@cnooc.com.cn
基金资助:
国家高技术研究发展计划(863)重点攻关项目"旋转导向钻井系统工程化技术研究"(2007AA090801)和国家重大科技专项"多枝导流适度出砂技术"(2008ZX05024-003)资助。

A multibody dynamical model of full-hole drillstring system

CHENG Zaibin¹, JIANG Wei², REN Gexue³, ZHOU Jianliang¹, JIANG Shiquan¹, YANG Caijin³, HE Baosheng⁴

1. Technology Research Center, CNOOC Research Institute, Beijing 100027, China;
2. CNOOC Engineering Technology Department, Beijing 100010, China;
3. Department of Engineering Mechanics, School of Aerospace, Tsinghua University, Beijing 100084, China;
4. Drilling Research Institute, CNOOC Research Institute, Beijing 100027, China

Received:2013-01-13 Revised:2013-04-18 Online:2013-07-25 Published:2013-07-04

摘要/Abstract

摘要：

采用绝对节点坐标法建立了三维井眼全井钻柱系统多体动力学模型,将大长细比全井钻柱离散为绝对节点坐标梁单元,讨论了梁单元格式,并研究了井口、钻头处边界以及钻柱与井壁的接触/摩擦模型,给出了包含绝对节点坐标梁单元的钻柱系统运动方程。采用向后差分法求解微分-代数方程组,全面计算分析了全井钻柱系统的受力变形、摩阻扭矩、耦合振动、涡动、动力屈曲等力学特性,可在钻柱动力学研究和工程应用中发挥作用。

关键词: 全井钻柱系统, 多体动力学模型, 绝对节点坐标法, 耦合振动, 涡动

Abstract:

It is necessary for improving drilling efficiency and safety to investigate drillstring dynamics. A multibody dynamical model for 3D full-hole drillstring system was proposed based on the absolute nodal coordinate formulation (ANCF). The large fineness ratio of full-hole drillstring could be discretized into ANCF beam elements with the model and the format of beam elements was discussed. The absolute nodal coordinate formulation of beam elements and boundary conditions at wellhead and bit, as well as a contact/friction model between drillstring and wellbore were also investigated. A dynamic governing equation set for the full-hole drillstring system that contain ANCF was given and solved with the backward differentiation formulation (BDF) for differential algebraic equations (DAEs). The analysis of deformation, drag and torque, coupled vibration, whirling and dynamic buckling of the full-hole drillstring system was carried out, and the results showed that it can play an active role in drillstring dynamics researches and engineering applications.

Key words: full-hole drillstring system, multi-body dynamical model, absolute nodal coordinate formulation, coupled vibration, whirling

中图分类号:

TE929

程载斌, 姜伟, 任革学, 周建良, 蒋世全, 杨蔡进, 何保生. 全井钻柱系统多体动力学模型[J]. 石油学报, 2013, 34(4): 753-758.

CHENG Zaibin, JIANG Wei, REN Gexue, ZHOU Jianliang, JIANG Shiquan, YANG Caijin, HE Baosheng. A multibody dynamical model of full-hole drillstring system[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(4): 753-758.

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全井钻柱系统多体动力学模型

A multibody dynamical model of full-hole drillstring system

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