DETERMINATION OF THE FORMATION PERMEABILITY AND SKIN FACTOR FROM A VARIABLE FLOW RATE DRAWDOWN TEST

机译：通过可变流速下垂试验确定地层渗透率和皮肤因子

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At present, the flow rate variation during a drawdown test is usually treated as a sequence of discrete constant rates and the principle of superposition is used. Below a more general method of analyzing data of variable flow rate drawdown (VFRD) tests is presented. The flow rate q(t) is considered as a continuous function of time (t). It is assumed that the function q(t) can be approximated by a polynomial of some degree. The pressure response for the VFRD test is obtained by the direct integration of the Duhamel integral. A cartesian plot and a linear regression computer program are used to process test data and to provide an estimate of the values of skin factor and formation permeability. An example of calculations for a field test is presented.

机译：目前，压降试验期间的流量变化通常被视为一系列离散的恒定速率，并采用叠加原理。下面介绍了一种更通用的可变流量下降（VFRD）测试数据分析方法。流量q（t）被视为时间（t）的连续函数。假设函数q（t）可以通过某种程度的多项式近似。 VFRD测试的压力响应是通过Duhamel积分的直接积分获得的。笛卡尔图和线性回归计算机程序用于处理测试数据，并提供对表皮因子和地层渗透率值的估计。给出了现场测试的计算示例。

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《23rd New Zealand Geothermal Workshop 2001, 2001, Auckland》|2001年|p.179-182|共4页
会议地点 Auckland(NZ)
作者
I.M. KUTASOV;
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作者单位

School of Petroleum Engineering, University of New South Wales, Sydney, Australia;

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原文格式 PDF
正文语种 eng
中图分类能源与动力工程;
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DETERMINATION OF THE FORMATION PERMEABILITY AND SKIN FACTOR FROM A VARIABLE FLOW RATE DRAWDOWN TEST

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