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首页> 外文会议>SPE Asia Pacific improved oil recovery conference (APIORC 01) >Use of Permanent Resistivity and Transient Pressure Measurement for Time-Lapse Saturation Mapping
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Use of Permanent Resistivity and Transient Pressure Measurement for Time-Lapse Saturation Mapping

机译：永久电阻率和瞬态压力测量在时滞饱和度映射中的应用

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Optimization of hydrocarbon recovery requires information onrnthe space and time behavior of the saturation of the variousrnfluids present in the reservoir. This is particularly true forrnoilfields under secondary recovery such as water flooding,rnwhere an even reservoir sweep or zones of by-passed oil canrnbe assessed by a proper description of the water front advance.rnPermanent downhole electrodes have recently successfullyrnbeen deployed in oil wells.rnThis technology allows the time variation of the electrodernpotentials to be interpreted in terms of changes in saturationrnwithin the formation. In practice, the depth of investigation ofrnsuch measurements is however limited. Time-lapse pressurerntransient is an independent source of information with arngreater depth of investigation, therefore provides an adequaterncomplement to the permanent resistivity array measurement.rnIn this paper, we propose to use pressure build-up from shut-inrnin association to the electrical measurements. After recallingrnanalytical analogies in both types of measurements, wernpropose a quick-look method for interpreting the time-lapsernpressure transients. We then compare the physical andrnpractical advantages of each type of measurement and therndomain of application of the two measurements with respect tornfluid and reservoir properties. Finally we propose an examplernshowing the benefit obtained by coupling the two techniques.
机译：烃采收率的优化需要关于储层中存在的各种流体的饱和度的时空行为的信息。在诸如水驱等二次采收的情况下，尤其如此。对于油层平整的描述，可以对储层扫掠均匀或绕过油的区域进行评估，从而可以对油井进行适当的描述.rn永久性的井下电极最近已成功地部署在油井中。可以根据地层内饱和度的变化来解释电势的时间变化。然而，实际上，这种测量的研究深度是有限的。随时间推移的压力瞬变是一个具有更深研究深度的独立信息源，因此为永久电阻率阵列测量提供了足够的补充。本文建议使用从关闭关联到电测量的压力建立。在回顾了两种类型的测量的分析类比之后，我们提出了一种快速方法来解释随时间推移的压力瞬变。然后，我们比较每种类型的测量的物理和实践优势以及两种测量在流体和储层性质方面的应用领域。最后，我们提出一个示例，说明通过结合两种技术获得的好处。

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