ISSN 1673-8217 CN 41-1388/TE
主管：中国石油化工集团有限公司 主办：中国石油化工股份有限公司河南油田分公司
杨明合, 夏宏南. 2002: 欠平衡钻井过程中井眼压降分布规律的研究. 石油地质与工程, 16(02): 33-35+7.
引用本文: 杨明合, 夏宏南. 2002: 欠平衡钻井过程中井眼压降分布规律的研究. 石油地质与工程, 16(02): 33-35+7.
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2002: A Study on Distribution Pattern of Borehole Pressure Drawdown in Under-balanced Drilling Operation. Petroleum Geology and Engineering, 16(02): 33-35+7.
Citation: 2002: A Study on Distribution Pattern of Borehole Pressure Drawdown in Under-balanced Drilling Operation. Petroleum Geology and Engineering, 16(02): 33-35+7.
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欠平衡钻井过程中井眼压降分布规律的研究

A Study on Distribution Pattern of Borehole Pressure Drawdown in Under-balanced Drilling Operation

    摘要
  • 摘要: 在分析欠平衡钻井过程中井眼流体基本流型的基础上,给出了一套计算环形空间及钻杆内部压降的计算公式。计算结果表明,该套公式较为精确地模拟了欠平衡钻井过程中井眼压力分布的规律。

     

    Abstract: Based on analysis of the basic flowing pattern of borehole fluids during under-balanced drilling operation, a set of formula is presented for calculating pressure drawdowns in the annulus and drill strings. Calculation results show that they accurately reveal the distribution pattern of pressure in wellbore during under-balanced drilling operation.

     

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