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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
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
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2.发明授权Method for determining oil and water saturation of core samples at overburden pressure 失效岩石样品在上覆压力下的油水饱和度测定方法
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
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。
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3.发明授权Method including electrical self potential measurements for detecting multiphase flow in a cased hole 失效包括用于检测套管孔中的多相流的电自测量的方法
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
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。
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4.发明授权Enhanced oil recovery from low permeability reservoirs using organosilicone surfactants 失效使用有机硅表面活性剂从低渗透油藏提高采收率
公开(公告)号：US5325920A
公开(公告)日：1994-07-05
申请号：US992675
申请日：1992-12-18
申请人： Nizar F. Djabbarah
发明人： Nizar F. Djabbarah
CPC分类号： C09K8/94 , C09K8/592 , Y10S507/936
摘要： A method for enhanced oil recovery in a reservoir having a substantial silicon content where an organosilicone surfactant is co-injected with steam to generate a foam. The organosilicone surfactant component of the foam prevents a dissolution of the silicon-containing formation since local equilibrium is assured. Prevention of formation dissolution reduces caving near the wellbore and minimizes permeability reduction away from the wellbore.
摘要翻译： 一种用于在具有大量硅含量的贮存器中提高采油的方法，其中有机硅表面活性剂与蒸汽共同注入以产生泡沫。 泡沫的有机硅表面活性剂组分防止含硅地层的溶解，因为确保了局部平衡。 防止地层溶解减少了井筒附近的塌陷，并最大限度地减少远离井身的渗透率。
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公开(公告)号：US5295540A
公开(公告)日：1994-03-22
申请号：US976638
申请日：1992-11-16
CPC分类号： C09K8/594 , C09K8/592 , E21B43/164 , E21B43/24 , Y02P90/70
摘要： The invention is a foam method for improving conformance during a steam flood or carbon dioxide flood in a subterranean, oil-containing formation penetrated by at least one injection well and at least one production well. In a steam flood oil recovery process, sweep efficiency is improved by injecting steam until steam breakthrough occurs at the production well after which a mixture of steam, a noncondensible gas, and an aqueous surfactant-starch solution is injected into the formation. The aqueous surfactant-starch solution forms a stable foam with the formation oil at formation conditions that reduce the permeability of the highly permeable steam swept zones thereby diverting the steam to other portions of the formation containing unswept oil. The starch is used as a partial substitute for the surfactant to improve the cost of the foam-forming mixture without reducing its effectiveness in increasing sweep efficiency.
摘要翻译： 本发明是一种用于在由至少一个注入井和至少一个生产井穿透的地下含油地层中的蒸汽洪水或二氧化碳洪水期间改善一致性的泡沫方法。 在蒸汽洪水回收过程中，通过注入蒸汽直至在生产井发生蒸汽渗透之前提高了扫描效率，之后将蒸汽，不可冷凝气体和表面活性剂 - 水性水溶液的混合物注入到地层中。 水性表面活性剂 - 淀粉溶液在形成条件下形成稳定的泡沫，其中地层油降低了高度可渗透的蒸汽扫过区的渗透性，从而将蒸汽转移到含有未除油的地层的其它部分。 淀粉用作表面活性剂的部分替代物以改善泡沫形成混合物的成本，而不降低其提高扫掠效率的有效性。
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6.发明授权Oil recovery method employing carbon dioxide flooding with improved sweep efficiency 失效采用二氧化碳驱油的油回收方法具有改进的吹扫效率
公开(公告)号：US4605066A
公开(公告)日：1986-08-12
申请号：US593465
申请日：1984-03-26
申请人： Nizar F. Djabbarah
发明人： Nizar F. Djabbarah
CPC分类号： E21B43/18 , E21B43/164 , Y02P90/70
摘要： Oil is recovered from oil-containing formations employing alternate injection of carbon dioxide and a mixture of carbon dioxide and an additive comprising an intermediate hydrocarbon or tall oil to improve sweep efficiency. First, carbon dioxide is injected and fluid including oil is recovered from the formation until CO.sub.2 breakthrough occurs at the production well. Next, a mixture of carbon dioxide and an intermediate hydrocarbon or carbon dioxide and tall oil is injected and fluids produced until the injection pressure increases to a value about 10% above the injection pressure when injection of the mixture is initiated. Thereafter, carbon dioxide is injected and fluids including oil are recovered until carbon dioxide breakthrough occurs at the production well. The sequence of injection of carbon dioxide followed by injection of a mixture of carbon dioxide and an intermediate hydrocarbon or carbon dioxide and tall oil is repeated for a plurality of cycles to more completely sweep the full volume of the formation defined by the injection and production well. The process should be applied to a formation in which adequate communication exists.
摘要翻译： 使用替代注射二氧化碳和二氧化碳和包含中间烃或妥尔油的添加剂的混合物从含油地层中回收油，以提高扫描效率。 首先，注入二氧化碳，并从地层回收包括油的流体，直到在生产井发生CO2突破。 接下来，注入二氧化碳和中间体烃或二氧化碳和妥尔油的混合物，并且产生流体，直到注射压力升高到开始注射混合物时高于注射压力的约10％的值。 此后，注入二氧化碳，并回收包括油在内的液体，直到生产井发生二氧化碳突破。 重复注入二氧化碳的顺序，然后注入二氧化碳和中间体烃或二氧化碳和妥尔油的混合物进行多个循环，以更完全地扫描由注入和生产井定义的地层的全部体积 。 该过程应适用于存在充分沟通的形式。
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公开(公告)号：US5542474A
公开(公告)日：1996-08-06
申请号：US566636
申请日：1995-12-04
CPC分类号： E21B43/164 , C09K8/58 , C09K8/592 , C09K8/594 , E21B33/138 , E21B43/24 , Y02P90/70
摘要： The invention is a foam method for improving conformance during a steam flood or carbon dioxide flood in a subterranean, oil-containing formation penetrated by at least one injection well and at least one production well. In a steam flood oil recovery process, sweep efficiency is improved by injecting steam until steam breakthrough occurs at the production well after which a mixture of steam, a noncondensible gas, and an aqueous surfactant-polypeptide solution is injected into the formation. The aqueous surfactant-polypeptide solution forms a stable foam with the formation oil at formation conditions that reduce the permeability of the highly permeable steam swept zones thereby diverting the steam to other portions of the formation containing unswept oil. The polypeptide is used as a partial substitute for the surfactant to improve the cost of the foam-forming mixture without reducing its effectiveness in increasing sweep efficiency. In another embodiment of the invention, the mixture of steam, surfactant-polypeptide solution and noncondensible gas may be injected into the formation surrounding a production well that has previously experienced severe steam breakthrough to significantly decrease the permeability of steam-swept zone surrounding the production well.
摘要翻译： 本发明是一种用于在由至少一个注入井和至少一个生产井穿透的地下含油地层中的蒸汽洪水或二氧化碳洪水期间改善一致性的泡沫方法。 在蒸汽泛油回收过程中，通过注入蒸汽来提高吹扫效率，直到在生产井发生蒸汽渗透，然后将蒸汽，不可冷凝气体和表面活性剂 - 多水溶液的混合物注入到地层中。 水性表面活性剂 - 多肽溶液在形成条件下形成稳定的泡沫，其中地层油降低了高渗透性蒸汽扫过区的渗透性，从而将蒸汽转移到含有未除油的地层的其它部分。 多肽用作表面活性剂的部分替代物以改善泡沫形成混合物的成本，而不降低其提高扫描效率的有效性。 在本发明的另一个实施方案中，可以将蒸汽，表面活性剂 - 多肽溶液和不可冷凝气体的混合物注入到先前经历过严重蒸汽渗透的生产井周围的地层中，以显着降低围绕生产井的蒸汽扫过区的渗透性 。
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公开(公告)号：US4899817A
公开(公告)日：1990-02-13
申请号：US284563
申请日：1988-12-15
申请人： Nizar F. Djabbarah
发明人： Nizar F. Djabbarah
CPC分类号： E21B43/164 , C09K8/594 , Y02P90/70
摘要： A process for modifying the minimum miscibility pressure (MMP) of a drive fluid and hydrocarbonaceous fluid mixture by addition of alcohol to the drive fluid. Alcohols which can be utilized include methanol through octanol. The preferred drive fluid comprises carbon dioxide. Selection of the alcohol will depend on the water saturation in the reservoir and gravity of the crude oil. MMP modification results in an increased and more efficient recovery of reservoir oil.
摘要翻译： 一种通过向驱动流体添加醇来改变驱动流体和含烃流体混合物的最小混溶压力（MMP）的方法。 可以使用的醇包括通过辛醇的甲醇。 优选的驱动流体包括二氧化碳。 酒精的选择取决于水库的饱和度和原油的重力。 MMP改性导致油藏油的回收率提高且更有效。
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公开(公告)号：US4736793A
公开(公告)日：1988-04-12
申请号：US815105
申请日：1985-12-31
申请人： Nizar F. Djabbarah
发明人： Nizar F. Djabbarah
CPC分类号： E21B43/164 , E21B43/18 , Y02P90/70
摘要： A gas-drive hydrocarbon oil recovery process comprises injecting into a subterranean, viscous oil-containing formation tall oil to reduce the minimum miscibility pressure (MMP) of the reservoir oil-displacing fluid system and increase the viscosity of the displacing fluid. The tall oil is injected as a separate slug either simultaneously with or before the injection of a slug of the displacing fluid. A drive fluid may also be injected into the formation after the injection of the displacing fluid and tall oil to aid in the recovery of the formation oil.
摘要翻译： 气体驱动的烃油回收方法包括将地下粘性含油地层妥尔油注入，以降低储层取油流体系统的最小混溶压力（MMP）并增加置换液体的粘度。 妥尔油作为单独的块塞同时或在注入排液之前被注入。 驱动流体也可以在注入排出流体和妥尔油之后注入地层，以帮助地层油的回收。
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公开(公告)号：US5513705A
公开(公告)日：1996-05-07
申请号：US438584
申请日：1995-05-10
CPC分类号： E21B43/164 , C09K8/58 , C09K8/592 , C09K8/594 , E21B33/138 , E21B43/24 , Y02P90/70
摘要： The invention is a foam method for improving conformance during a steam flood or carbon dioxide flood in a subterranean, oil-containing formation penetrated by at least one injection well and at least one production well. In a steam flood oil recovery process, sweep efficiency is improved by injecting steam until steam breakthrough occurs at the production well after which a mixture of steam, a noncondensible gas, and an aqueous surfactant-polypeptide solution is injected into the formation. The aqueous surfactant-polypeptide solution forms a stable foam with the formation oil at formation conditions that reduce the permeability of the highly permeable steam swept zones thereby diverting the steam to other portions of the formation containing unswept oil. The polypeptide is used as a partial substitute for the surfactant to improve the cost of the foam-forming mixture without reducing its effectiveness in increasing sweep efficiency. In another embodiment of the invention, the mixture of steam, surfactant-polypeptide solution and noncondensible gas may be injected into the formation surrounding a production well that has previously experienced severe steam breakthrough to significantly decrease the permeability of steam-swept zone surrounding the production well.
摘要翻译： 本发明是一种用于在由至少一个注入井和至少一个生产井穿透的地下含油地层中的蒸汽洪水或二氧化碳洪水期间改善一致性的泡沫方法。 在蒸汽泛油回收过程中，通过注入蒸汽来提高吹扫效率，直到在生产井发生蒸汽渗透，然后将蒸汽，不可冷凝气体和表面活性剂 - 多水溶液的混合物注入到地层中。 水性表面活性剂 - 多肽溶液在形成条件下形成稳定的泡沫，其中地层油降低了高渗透性蒸汽扫过区的渗透性，从而将蒸汽转移到含有未除油的地层的其它部分。 多肽用作表面活性剂的部分替代物以改善泡沫形成混合物的成本，而不降低其提高扫描效率的有效性。 在本发明的另一个实施方案中，可以将蒸汽，表面活性剂 - 多肽溶液和不可冷凝气体的混合物注入到先前经历过严重蒸汽渗透的生产井周围的地层中，以显着降低围绕生产井的蒸汽扫过区的渗透性 。
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