公开(公告)号：US08805616B2

公开(公告)日：2014-08-12

申请号：US12974229

申请日：2010-12-21

申请人： Jerald J. Hinkel ,  Dean Willberg ,  Markus Pagels

发明人： Jerald J. Hinkel ,  Dean Willberg ,  Markus Pagels

IPC分类号： G01V9/00 ,  G01N24/08

CPC分类号： E21B49/088 ,  C09K8/58 ,  E21B43/16 ,  G01N24/081 ,  G01N33/24

摘要： A method for determining a characteristic of an underground formation with a fluid is described. The method includes providing a sample material of the underground formation; measuring the permeability and the porosity of the sample material; performing a drainage test on the sample material using the fluid; estimating the threshold pressure of the sample material from the drainage test, the permeability and the porosity measurements; and determining the receding contact angle of the fluid on the sample material from the threshold pressure. The sample material can be disaggregated material.

摘要翻译： 描述了一种用流体确定地下地层特征的方法。 该方法包括提供地下地层的样品材料; 测量样品材料的渗透性和孔隙率; 使用流体对样品材料进行排水试验; 从排水试验估算样品材料的阈值压力，渗透率和孔隙度测量值; 以及从所述阈值压力确定所述样品材料上的所述流体的后退接触角。 样品材料可以是分解材料。

公开(公告)号：US20120151998A1

公开(公告)日：2012-06-21

申请号：US12974276

申请日：2010-12-21

申请人： Dean Willberg ,  Markus Pagels ,  Jerald J. Hinkel

发明人： Dean Willberg ,  Markus Pagels ,  Jerald J. Hinkel

IPC分类号： G01N15/08

CPC分类号： G01N13/00 ,  G01N1/286

摘要： A method of determining wettability of a rock sample, such as from a core sample is described. The sample is preferably crushed or comminuted to a particulate size where micro fractures have been eliminated, but where the particles are still large enough to represent the native rock matrix and texture. The comminuted core sample is exposed to a test fluid for a given period of time. The rock sample can be split into many separate aliquots, and a series of tests is performed using a series of different fluids and/or the same fluid for different exposure times. The excess test fluid residing on the surfaces of sample particles is removed. The test fluid imbibed into the interior of the particulate sample is then measured. The test fluid can be, for example, water, a non-aqueous fluid, and/or a solution of miscible solvents. The technique used to measure the imbibed fluid depends on the solvent (imbibing fluid) being studied. In one example, this technique includes both gravimetric determination and quantitative chemical analysis. The detection of water can be via Karl Fischer titration.

摘要翻译： 描述了一种确定岩样的润湿性的方法，例如来自核心样品。 样品优选被粉碎或粉碎成微粒，其中微裂纹已经被去除，但是其中颗粒仍然足够大以表示天然岩石基质和质地。 粉碎的芯样品暴露于测试流体一段给定的时间。 岩石样品可以分成许多单独的等分试样，并且使用一系列不同的流体和/或相同的流体进行不同曝光时间的一系列测试。 去除驻留在样品颗粒表面上的过量测试流体。 然后测量吸入颗粒样品内部的测试液。 测试流体可以是例如水，非水性流体和/或可混溶溶剂的溶液。 用于测量吸液的技术取决于正在研究的溶剂（吸液）。 在一个实例中，该技术包括重量测定和定量化学分析。 水的检测可以通过卡尔费休滴定。

公开(公告)号：US20120152548A1

公开(公告)日：2012-06-21

申请号：US12974229

申请日：2010-12-21

申请人： Jerald J. Hinkel ,  Dean Willberg ,  Markus Pagels

发明人： Jerald J. Hinkel ,  Dean Willberg ,  Markus Pagels

IPC分类号： E21B43/16 ,  G06F19/00 ,  C09K8/58 ,  E21B49/00

CPC分类号： E21B49/088 ,  C09K8/58 ,  E21B43/16 ,  G01N24/081 ,  G01N33/24

摘要： A method for determining a characteristic of an underground formation with a fluid is described. The method includes providing a sample material of the underground formation; measuring the permeability and the porosity of the sample material; performing a drainage test on the sample material using the fluid; estimating the threshold pressure of the sample material from the drainage test, the permeability and the porosity measurements; and determining the receding contact angle of the fluid on the sample material from the threshold pressure. The sample material can be disaggregated material.

摘要翻译： 描述了一种用流体确定地下地层特征的方法。 该方法包括提供地下地层的样品材料; 测量样品材料的渗透性和孔隙率; 使用流体对样品材料进行排水试验; 从排水试验估算样品材料的阈值压力，渗透率和孔隙度测量值; 以及从所述阈值压力确定所述样品材料上的所述流体的后退接触角。 样品材料可以是分解材料。