西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (6): 81-84.DOI: 10.3863/j.issn.1000-2634.2008.06.019

• 石油与天然气工程 • 上一篇    下一篇

油气深井随钻扩眼钻柱扭转振动分析

石晓兵 陈平 熊继有   

  1. “油气藏地质及开发工程”国家重点实验室?西南石油大学,四川 成都 610500
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

TWISTING VIBRATION ANALYSIS OF DRILL STRING REAMING WHILE DRILLING IN DEEP OIL/GAS WELL

SHI Xiao-bing CHEN Ping XIONG Ji-you   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploration,Southwest Petroleum University,Chengdu Sichuan 610500,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要: 针对深井、超深井、高压油气井等钻井作业中安全高效的扩眼问题,研究随钻扩眼钻具组合在井下的实际受力情况,对随钻扩眼钻进钻柱扭转振动进行了三维有限元模拟,提出了研究扩眼器的质量偏心、钻机顶部支撑等因素对扭转振动作用的力学分析模型,并讨论了随钻扩眼钻具组合的扭转振动频率和动力学强度等力学问题。通过分析提出了在实际施工作业中减少扭转振动带来危害的技术措施,为油气深井高效随钻扩眼的钻井参数的优化和安全钻进提供了理论基础和参考依据。

关键词: 油气深井, 钻井, 随钻扩眼, 扭转振动

Abstract:

Aiming at safe and high effective borehole enlargement issue of deep well,ultradeep well and high pressure oil/gas well in drilling operation,actual force

behaviors of drilling string assembly reaming while drilling in downhole are researched,by using triaxial finite element approach twisting vibration of reaming drill

string while drilling is simulated.A mechanics analytic model of twisting vibration effect is proposed by researching the factors such as mass bias of hole opener,top

backup of drilling rig etc,and mechanics issues,such as frequency of twisting vibration and strength of kinetics,etc,of drilling string assembly reaming while drilling

are discussed.By means of the analysis,the technique measurement to decrease hazard of twisting vibration in actual drilling operation is proposed.The measurement provides

a set of theoretical basic and reference criteria for safely drilling deep oil/gas well and optimal drilling parameters of high efficiency reaming while drilling.

Key words: deep oil/gas well, drilling, reaming while drilling, twisting vibration

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