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续流对不稳定压力分析的影响,在试井分析中,很早已为人们所公认,以恒量井筒储存系数的简化模式为基础的典型曲线法,已试图仅仅从压力数据中估计续流的影响。引用新的产量测井工具,就能同时测量井下流量和井下压力,使我们能够在地面监测井下的续流量。因此,用变流量分析的新形式,试井能得到更精确的解释,而且,在适当的半对数图上决定一条直线所需的关井时间大大减少。(半对数图,例如霍纳法,MDH 米勒—戴斯—哈钦森法)对从产量测井装置中输出压力和流量数据的分析,能在现场及时作出决定,以便试井能继续进行,达到所需的目的为止。一个现场实例说明了连续测量井下流量,在井筒储存期间,如何能改进一个短时间的压力恢复试井的解释。
The effect of freewheeling on unsteady pressure analysis has long been recognized in well testing analysis as a typical curve method based on simplified models of constant wellbore storage coefficients that have attempted to estimate the effects of freewheeling solely from pressure data . Using a new production logging tool, we can measure downhole flow and downhole pressure simultaneously, enabling us to monitor the downhole flow at the surface. Therefore, with the new form of variable flow analysis, well testing can be more accurately explained and the time required to close a well on the right semi-log plot is significantly reduced. (Semi-logarithmic plots such as Horner, MDH Miller-Days-Hutchinson method) The analysis of output pressure and flow data from a production logging device enables timely decisions to be made in the field so that the well test can continue Proceed to achieve the desired purpose so far. A field example illustrates how to continuously measure the downhole flow and how to improve interpretation of a short time pressure recovery well test during wellbore storage.