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首页> 外文期刊>Transport in Porous Media >A New Correction Method for Oil-Water Relative Permeability Curve on the Basis of Resistivity and Water Saturation Relationship
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A New Correction Method for Oil-Water Relative Permeability Curve on the Basis of Resistivity and Water Saturation Relationship

机译：基于电阻率和水饱和度关系的油水相对渗透率曲线校正新方法

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摘要

Oil-water relative permeability curve constitutes important basic data in reservoir engineering. Given the influence of dead volume on experimental apparatus, the actual oil-water relative permeability curve cannot be obtained when the unsteady-state method is adopted to measure oil-water relative permeability. In this paper, on the basis of the analysis of the influence of dead volume on oil-water relative permeability, we summarize the conventional methods used to overcome dead volume and then propose the use of relationship theory between resistivity and water saturation to calibrate the oil-water relative permeability curve. This method mainly aims at to measure the resistance values at both ends of the core by using a resistance-measuring instrument. Meantime, the Archie formula is used to calibrate the relational expression of core resistivity and water saturation based on the steady-state experimental method. Therefore, the core of the actual cumulative oil production and the average water saturation can be calculated, and then oil-water relative permeability can be accurately computed without the influence of dead volume. By comparing the oil displacement process of dead volume calculated through two different methods (probability subtraction and resistivity methods), the crude oil in dead volume is found to be displaced at the beginning of the displacement. The oil-water relative permeability curve corrected through resistivity method can eliminate the influence of dead volume and iterative error in calculation, and is consistent with the law of the actual development of oilfield, which has certain theoretical and practical application values.
机译：油水相对渗透率曲线构成了油藏工程的重要基础数据。考虑到死体积对实验装置的影响，采用非稳态方法测量油水相对渗透率时，无法获得实际的油水相对渗透率曲线。本文在分析死体积对油水相对渗透率的影响的基础上，总结了克服死体积的常规方法，并提出了利用电阻率与含水饱和度之间的关系理论对油进行标定的方法。 -水相对渗透率曲线。该方法的主要目的是通过使用电阻测量仪来测量铁心两端的电阻值。同时，基于稳态实验方法，利用Archie公式来校正岩心电阻率与含水饱和度的关系式。因此，可以计算出实际累计产油量和平均含水饱和度的核心，然后可以准确地计算出油水相对渗透率，而不受死体积的影响。通过比较通过两种不同方法（概率减法和电阻率法）计算出的死体积的油驱替过程，发现死体积中的原油在驱替开始时就被驱替了。用电阻率法校正的油水相对渗透率曲线，可以消除死体积和迭代误差的影响，与油田的实际开发规律相吻合，具有一定的理论和实际应用价值。

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  • 来源
    《Transport in Porous Media》 |2015年第3期|527-540|共14页
  • 作者

    Hu Wei; Yang Shenglai; Liu Guangfeng; Wang Zhilin; Wang Ping; Lei Hao;

  • 作者单位

    China Univ Petr, Minist Educ, Key Lab Petr Engn, Beijing 102249, Peoples R China;

    China Univ Petr, Minist Educ, Key Lab Petr Engn, Beijing 102249, Peoples R China;

    Petrochina Changqing Oilfield Co, Oil Prod Plant 5, Xian 710000, Shaanxi, Peoples R China;

    China Univ Petr, Minist Educ, Key Lab Petr Engn, Beijing 102249, Peoples R China;

    PetroChina Huabei Oilfield Co, Exploit Factory 4, Langfang 06500, Hebei, Peoples R China;

    China Univ Petr, Minist Educ, Key Lab Petr Engn, Beijing 102249, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Oil-water relative permeability; Water saturation; Resistivity; Archie formula; Dead volume;

    机译：油水相对渗透率;水饱和度;电阻率;Archie公式;死体积;

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