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公开(公告)号：US4793413A
公开(公告)日：1988-12-27
申请号：US135873
申请日：1987-12-21
CPC分类号： E21B43/26 , E21B49/006 , E21B49/008
摘要： Fluid is injected into a wellbore at a first rate which is low enough to maintain formation pressure beneath formation parting pressure. Thereafter, the rate of fluid injection is increased to a second rate which is high enough to exceed formation parting pressure. The time and pressure data obtained during the first and second periods are normalized, plots thereof are superposed and the formation parting pressure is determined by noting the point at which the plots deviate from one another.
摘要翻译： 将流体以低至足以将地层压力维持在地层分离压力以下的第一速率注入井眼。 此后，流体喷射速率增加到足以超过地层分离压力的第二速率。 在第一和第二周期期间获得的时间和压力数据被归一化，它们的叠加叠加，并且通过注意图彼此偏离的点来确定形成分离压力。
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2.发明授权Pressure transient method of rapidly determining permeability, thickness and skin effect in producing wells 失效在井中快速测定渗透率，厚度和表皮效应的压力瞬态方法
公开(公告)号：US4423625A
公开(公告)日：1984-01-03
申请号：US325804
申请日：1981-11-27
CPC分类号： E21B49/087 , E21B47/10 , E21B49/008
摘要： A method of flow testing a producing formation through a well including lowering into the well a recording pressure and temperature device to measure pressure and temperature as functions of time, then lowering into the well a test chamber closed at the bottom by a surface activated valve. The space between the chamber and the top of the formation is sealed and immediately thereafter the pressure and temperature of the well is measured. The valve on the test chamber is opened to allow formation fluids to enter therein and the pressure and temperature is measured as a function of time for a substantial period of time during which the pressure in the chamber increases, whereby the flow capacity and skin factor of the formation can be calculated.
摘要翻译： 一种通过井的流动测试生产地层的方法，包括将记录压力和温度装置降低到井中，以测量作为时间函数的压力和温度，然后通过表面活化阀将底部的封闭的测试室下降到井中。 腔室和地层顶部之间的空间被密封，此后立即测量井的压力和温度。 打开测试室上的阀以允许地层流体进入其中，并且在室内的压力增加的相当长的一段时间内，测量作为时间的函数的压力和温度，由此，流量和表皮因子 可以计算出地层。
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