公开(公告)号：US5470749A

公开(公告)日：1995-11-28

申请号：US112292

申请日：1993-08-27

申请人： Nizar F. Djabbarah ,  Eve S. Sprunt

发明人： Nizar F. Djabbarah ,  Eve S. Sprunt

IPC分类号： G01N25/60 ,  G01N27/60 ,  G01N33/00

CPC分类号： G01N33/0013 ,  G01N25/60 ,  G01N27/605

摘要： Steam quality is measured by mixing the steam with a small amount of surfactant to convert the steam to a stable foam, passing the stable foam through a capillary tube to determine foam quality (volume of vapor per volume of vapor and liquid) by measuring the streaming potential coupling coefficient of the foam passing through the tube, and converting foam quality (volume per volume) to steam quality (mass of vapor per mass of vapor and liquid) based upon the fluid density of the liquid-water and water-vapor phase of the steam.

摘要翻译： 蒸汽质量通过将蒸汽与少量表面活性剂混合来测量，以将蒸汽转化成稳定的泡沫，使稳定的泡沫通过毛细管，以通过测量流动来测定泡沫质量（每体积的蒸汽和液体的蒸气体积） 泡沫通过管的潜在耦合系数，并且基于液 - 水和水汽相的流体密度将泡沫质量（每体积体积）转换成蒸汽质量（每质量蒸气和液体的质量） 蒸汽

公开(公告)号：US5299453A

公开(公告)日：1994-04-05

申请号：US10250

申请日：1993-01-28

申请人： Eve S. Sprunt ,  Nizar F. Djabbarah

发明人： Eve S. Sprunt ,  Nizar F. Djabbarah

IPC分类号： G01N15/08 ,  E21B49/00

CPC分类号： G01N15/0893

摘要： A method and apparatus is provided to determine the amount of oil and water or brine in a representative core sample of reservoir rock at an overburden stress which approximates reservoir stress conditions. The core sample is initially saturated with reservoir hydrocarbon (crude oil) and aqueous fluids (water or brine). The core sample is surrounded with an elastic jacket, or sleeve, and placed in a confining pressure vessel that simulates reservoir overburden stress on the core sample. The hydrocarbon (oil) fluids and aqueous fluids (water or brine) are than extracted from the core sample with a solvent capable of dissolving both aqueous and hydrocarbon fluids. The solvent and aqueous fluids are separated from the hydrocarbon fluids by evaporation. Thereafter the aqueous fluids are separated from the solvent by extraction. The amounts of oil and aqueous fluids from the sample may be separately determined. The volume of the hydrocarbon fluids and aqueous fluids is determined from their weight and density or from direct volume measurement. For a rock sample fully saturated with a combination of oil and aqueous fluids, the total pore volume is the sum of the volumes of the two fluids and the fluid saturation is then the ratio of the fluid volume to the pore volume.

摘要翻译： 提供了一种方法和装置，用于确定近似于储层应力条件的上覆层应力的储层岩石的代表性核心样品中的油和水或盐水的量。 核心样品最初饱和储层烃（原油）和含水流体（水或盐水）。 核心样品用弹性护套或套管包围，并放置在模拟压力容器中，该压力容器模拟核心样品上的储层覆盖层应力。 烃（油）流体和含水流体（水或盐水）不是用能够溶解水和烃流体的溶剂从芯样品中提取的。 通过蒸发将溶剂和含水流体与烃流体分离。 此后，通过萃取将含水流体与溶剂分离。 来自样品的油和水溶液的量可以单独测定。 烃流体和含水流体的体积由其重量和密度或直接体积测量确定。 对于完全饱和油和含水流体的岩石样品，总孔体积是两种流体体积的总和，而流体饱和度则是流体体积与孔体积之比。

公开(公告)号：US5214384A

公开(公告)日：1993-05-25

申请号：US734834

申请日：1991-07-24

申请人： Eve S. Sprunt ,  Nizar F. Djabbarah

发明人： Eve S. Sprunt ,  Nizar F. Djabbarah

IPC分类号： E21B43/16 ,  E21B43/24 ,  E21B47/10 ,  E21B49/00 ,  G01V3/26

CPC分类号： G01V3/265 ,  E21B43/164 ,  E21B43/24 ,  E21B47/102 ,  E21B49/00 ,  Y02P90/70

摘要： A method for time lapse electric logging in a cased hole in which electrodes are implanted in the casing or the hole is completed with a gravel packed non conductive, perforated liner that allows an open hole logging tool to be used for time-lapse logging. Thereafter, the implemented electrodes or a self-potential (SP) logging tool are used to monitor a steam-flooding EOR method by detecting two-phase flow with time lapse logging. A potential drop between the surface and zones of interest is measured with electrodes installed in a non-conductive casing or the SP logging tool.

摘要翻译： 一种在套管孔中进行时间延迟电测井的方法，其中电极植入壳体或孔中，其中砾石填充的非导电的穿孔衬套完成，允许使用露天测井工具进行延时测井。 此后，所实施的电极或自动电位（SP）测井工具用于通过检测具有时间流逝测井的两相流来监测蒸汽淹没EOR方法。 使用安装在非导电套管或SP测井工具中的电极测量表面和感兴趣区域之间的电位降。

公开(公告)号：US5443119A

公开(公告)日：1995-08-22

申请号：US282375

申请日：1994-07-29

申请人： Michael R. Chambers ,  Eve S. Sprunt

发明人： Michael R. Chambers ,  Eve S. Sprunt

IPC分类号： E21B43/119 ,  E21B49/00

CPC分类号： E21B49/006 ,  E21B43/119

摘要： In a hydrocarbon-producing well penetrating an unconsolidated hydrocarbon reservoir, the azimuthal direction of the maximum in-situ horizontal compressive stress within the reservoir having non-uniform horizontal tectonic stresses surrounding the well is determined. Perforations are formed in the reservoir, or in the casing if the well is cased, oriented in the azimuthal direction of the determined maximum in-situ horizontal compressive stress. Thereafter, hydrocarbon production is initiated from the well through the perforations whereby the potential for sand production along with produced hydrocarbons is minimized.

摘要翻译： 在渗透未固结的烃储层的烃生产井中，确定了储层内最大的原位水平压应力的方位角方向，其中围绕井具有不均匀的水平构造应力。 穿孔在储存器中或在套管中形成，如果井被套管，则在确定的最大原位水平压缩应力的方位方向上定向。 此后，从井通过穿孔开始碳氢化合物生产，从而将生产的碳氢化合物的产生潜力最小化。

公开(公告)号：US5209104A

公开(公告)日：1993-05-11

申请号：US824268

申请日：1992-01-23

申请人： Samuel H. Collins ,  Eve S. Sprunt

发明人： Samuel H. Collins ,  Eve S. Sprunt

IPC分类号： G01N33/24

CPC分类号： G01N33/241

摘要： A porous rock is saturated with a first fluid and electrical resistivity is measured along its length. A second fluid, immiscible with the first fluid, is injected into the porous rock at a first flow rate. This injection continues until displacement of the first fluid from the porous rock ceases and the pressure drop along the porous rock becomes constant, indicating a first residual fluid saturation equilibrium. The foregoing is repeated for a plurality of increasing second fluid injection flow rates to effect electrical resistivity measurements at decreasing residual fluid saturation equilibriums. The method may then be repeated substituting the second fluid for the first and vice versa to perform an imbibition experiment.

摘要翻译： 多孔岩石被第一流体饱和，并沿其长度测量电阻率。 与第一流体不混溶的第二流体以第一流速注入多孔岩石中。 该喷射继续进行，直到来自多孔岩石的第一流体的位移停止，并且沿着多孔岩石的压降变得恒定，表明第一残余液体饱和平衡。 对于多个增加的第二流体喷射流速重复上述以在降低的残余流体饱和平衡时实现电阻率测量。 然后可以重复该方法将第二流体替换为第一流体，反之亦然，以执行吸入实验。

公开(公告)号：US4688238A

公开(公告)日：1987-08-18

申请号：US868487

申请日：1986-05-30

申请人： Eve S. Sprunt ,  Neil V. Humphreys ,  Ernest L. Muegge ,  James R. Dixon, Jr.

发明人： Eve S. Sprunt ,  Neil V. Humphreys ,  Ernest L. Muegge ,  James R. Dixon, Jr.

IPC分类号： G01N15/08 ,  G01N23/04 ,  G01N23/00

CPC分类号： G01N23/046 ,  G01N15/08 ,  G01N2223/419

摘要： A substantially cylindrical sample of a porous material is surrounded by an elastic jacket and placed in a confining pressure cell. Pressure is supplied to the cell to press the jacket into contact with the surface of the sample. The pressure is varied over a plurality of pressure points and is scanned at a plurality of locations with X-rays at each such pressure point. A computed tomographic image is produced for each X-ray scan. Conformance of the jacket to the sample is determined from these computed tomographic images and a range of confining pressure is determined over which parameters of the sample may be measured without being affected by improper conformance of the jacket to the surface of the sample. The sample structure is monitored with these tomographic images for fractures produced due to the increase of pressure. The fracture starting point is determined to be interior or surface related.

摘要翻译： 多孔材料的基本上圆柱形的样品由弹性护套包围并放置在围压压力池中。 将压力供应到电池以将夹套压紧到样品的表面。 压力在多个压力点上变化，并且在每个这样的压力点处的X射线的多个位置处被扫描。 为每个X射线扫描产生计算机断层图像。 从这些计算机断层图像确定护套与样品的一致性，并且确定可以测量样品的哪些参数而不受套件与样品表面的不适当一致性的影响的范围的限制压力范围。 用这些断层图像监测样品结构，用于由于压力的增加而产生的裂缝。 断裂起点被确定为内部或表面相关。

公开(公告)号：US5069065A

公开(公告)日：1991-12-03

申请号：US641965

申请日：1991-01-16

申请人： Eve S. Sprunt ,  Samuel H. Collins

发明人： Eve S. Sprunt ,  Samuel H. Collins

IPC分类号： G01N13/00 ,  G01N33/24

CPC分类号： G01N33/241 ,  G01N13/00

摘要： A core sample of a porous rock having a wettability representative of a subterranean formation is saturated with a first medium. This first medium is then displaced with an immiscible second medium. Capillary pressure versus wetting phase saturation is measured during the displacement of the first medium with the second medium within the core sample. Mercury is injected into an evacuated core sample of the porous rock, mercury vapor acting as a wetting phase on the porous rock. Capillary pressure versus wetting phase saturation is measured during mercury injection on the evacuated core sample. The ratio of the two capillary pressure versus wetting phase saturation measurements is determined and taken to be an indicator of the wettability of different size pore throats in the porous rock.

摘要翻译： 具有代表地层的润湿性的多孔岩石的核心样品被第一介质饱和。 然后将该第一介质用不混溶的第二介质置换。 在第一介质与核心样品中的第二介质置换期间测量毛细管压力与润湿相饱和度。 将汞注入多孔岩石的真空芯样品中，在多孔岩石上作为润湿阶段的汞蒸气。 在抽空的芯样品上注入汞期间，测量毛细管压力与润湿相饱和度。 确定两个毛细管压力与湿相饱和度测量值的比值，并将其视为多孔岩石中不同大小孔喉的润湿性的指标。

公开(公告)号：US4868751A

公开(公告)日：1989-09-19

申请号：US95210

申请日：1987-09-11

申请人： Ali H. Dogru ,  Eve S. Sprunt

发明人： Ali H. Dogru ,  Eve S. Sprunt

IPC分类号： G01N15/08

CPC分类号： G01N15/08

摘要： A core sample from a subterranean reservoir is placed in a pressure cell holder and the core pressure is measured at a plurality of pressure points along the core before and during fluid flooding. A computed tomography (CT) scanning system provides images of the density distribution within the core sample during such waterflooding. Fluid saturation, determined from these CT images, and pressure gradients, determined from the pressure measurements are used to determine the relative permeability of the subterranean reservoir.

摘要翻译： 来自地下储层的核心样品被放置在压力容器中，并且在流体驱油之前和期间在沿核心的多个压力点处测量核心压力。 计算机断层扫描（CT）扫描系统在这种注水期间提供核心样品内密度分布的图像。 使用从压力测量确定的从这些CT图像确定的流体饱和度和压力梯度来确定地下储层的相对渗透率。

公开(公告)号：US4848487A

公开(公告)日：1989-07-18

申请号：US213810

申请日：1988-06-30

申请人： Maynard L. Anderson ,  Eve S. Sprunt ,  Peggy M. Wilson ,  Susan O. Wooten

发明人： Maynard L. Anderson ,  Eve S. Sprunt ,  Peggy M. Wilson ,  Susan O. Wooten

IPC分类号： C09K8/035 ,  C09K8/508 ,  E21B25/08

CPC分类号： E21B25/08 ,  C09K8/035 ,  C09K8/5086

摘要： A core sample of an earth formation is obtained by drilling with a coring bit and circulating a coring fluid through the coring bit. The coring fluid contains no mud solids for contaminating the core sample or, in the alternative, contains drilling mud mixed with a bulk material which invades the core sample and occupies the core sample pore spaces preferentially over mud solids. This bulk material is more readily removed from the core sample by cleaning than mud solids.

摘要翻译： 通过用取芯钻进钻孔并使取芯流体通过取芯钻头获得地层岩心样品。 取芯液不含泥浆，用于污染核心样品，或者替代地，含有与大量材料混合的钻井泥浆，这些泥浆侵入核心样品并优先占据泥浆固体物质的核心样品孔隙。 这种散装材料通过清洁比泥浆固体更容易地从核心样品中除去。

公开(公告)号：US4631963A

公开(公告)日：1986-12-30

申请号：US715796

申请日：1985-03-25

申请人： Eve S. Sprunt ,  Larry D. Smallwood

发明人： Eve S. Sprunt ,  Larry D. Smallwood

IPC分类号： E21B49/00 ,  E21B49/02 ,  G01N29/07 ,  G01N29/11 ,  G01N33/24 ,  G01N29/00

CPC分类号： G01N29/11 ,  E21B49/006 ,  E21B49/02 ,  G01N29/07 ,  G01N33/241 ,  G01N2291/102

摘要： Acoustic energy anisotropy is measured in a core sample from a subterranean formation. The core sample is shaped by having its outer surface cut to provide a plurality of pairs of parallel, planar outer surfaces about the length of the core sample. A pair of planar transducers are successively placed in contact with each of the pairs of parallel, planar outer surfaces, one of the transducers being a transmitting transducer and the other being a receiving transducer. Compressional or shear acoustic energy is transmitted through the core sample in the aximuthal directions that are perpendicular to each of the pairs of parallel, planar outer surfaces of the core sample. Any differences in travel time, attenuation, waveform or other acoustic properties for the acoustic energy transmissions in the plurality of differing azimuthal directions are a measure of the compressional or shear acoustic energy anisotropy of the subsurface formation.

摘要翻译： 在来自地层的岩心样品中测量声能各向异性。 芯样品通过其外表面切割成形以围绕芯样品的长度提供多对平行的平面外表面。 一对平面换能器被连续地放置成与每对平行的平面外表面接触，其中一个换能器是发射换能器，另一个是接收换能器。 压缩或剪切声能在垂直于芯样品的平行的平面外表面中的每一对的轴向方向上穿过芯样品。 在多个不同方位方向上的声能传输的行进时间，衰减，波形或其它声学特性的任何差异是地下地层的压缩或剪切声能各向异性的量度。