Hydrocarbon recovery process
    1.
    发明授权
    Hydrocarbon recovery process 有权
    烃回收过程

    公开(公告)号:US08939211B2

    公开(公告)日:2015-01-27

    申请号:US13138116

    申请日:2009-12-23

    IPC分类号: E21B43/16 C09K8/58

    CPC分类号: C09K8/58 Y10S507/937

    摘要: Method for increasing recovery of crude oil from a reservoir having an oil-bearing porous subterranean formation with a permeability of greater than 10 millidarcies, the formation including rock having pores with crude oil and connate water having a multivalent cation content present within the pores. The crude oil in the formation has an API gravity of less than 30°, a viscosity greater than 1 centipoise, and undissolved solids suspended therein. Injection water having undissolved solids suspended therein, a total dissolved solids content of 30,000 ppm or less and a multivalent cation content such that a ratio of the multivalent cation content of the injection water to the multivalent cation content of the connate water is less than 0.9, is injected into the formation, to produce an emulsion within the formation. The emulsion has an undissolved suspended solids content of at least 0.05% by weight of emulsion.

    摘要翻译: 从具有渗透率大于10毫升的含油多孔地层的储层提高原油的回收率的方法,其形成包括具有原油的孔和具有多价阳离子含量的原生水存在于孔内。 地层中的原油的API重力小于30°,粘度大于1厘泊,未溶解的固体悬浮在其中。 具有悬浮在其中的不溶性固体的注入水,总溶解固体含量为30,000ppm以下,多价阳离子含量使得注入水的多价阳离子含量与原生水的多价阳离子含量的比例小于0.9, 被注入到地层中,以在地层内产生乳液。 该乳液具有至少0.05重量%乳液的未溶解悬浮固体含量。

    CORROSION INHIBITOR INTENSIFIER COMPOSITIONS AND ASSOCIATED METHODS
    2.
    发明申请
    CORROSION INHIBITOR INTENSIFIER COMPOSITIONS AND ASSOCIATED METHODS 有权
    腐蚀抑制剂增强剂组合物及相关方法

    公开(公告)号:US20110077174A1

    公开(公告)日:2011-03-31

    申请号:US12566969

    申请日:2009-09-25

    IPC分类号: C09K8/60 C23F11/14

    摘要: At least in aspect, the invention provides methods that include a method comprising: contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.

    摘要翻译: 至少在本发明中,本发明提供了包括以下方法的方法:包括:使金属表面与包含碱性基质水溶液,酸,腐蚀抑制剂和防腐剂增强剂组合物的酸性流体接触,所述组合物包含对应于 下式:其中R1是甲基或乙基,R2是H或烷基,芳基,烷基芳基,烷硫基芳基,烷氧基芳基,卤代芳基,苯基,烷基苯基,烷硫基苯基,烷氧基苯基或卤代苯基 。

    Method for in situ forming of unstable oil in water emulsion, especially as well servicing fluid
    3.
    发明授权
    Method for in situ forming of unstable oil in water emulsion, especially as well servicing fluid 失效
    在水中乳状液中不稳定油的原位成型方法,特别是维修液体

    公开(公告)号:US06818599B2

    公开(公告)日:2004-11-16

    申请号:US10104735

    申请日:2002-03-21

    IPC分类号: E21B4300

    摘要: A method for in situ forming of an unstable oil in water emulsion includes the steps of providing a mixture of an aqueous alkali salt solution and a surfactant, and pumping the mixture down a well containing a crude hydrocarbon having an API gravity of less than or equal to 26 so as to provide an unstable emulsion in the well, the unstable emulsion having the hydrocarbon as a dispersed phase and the solution as a continuous phase and having a ratio by weight of the hydrocarbon to the solution of at least about 50:50.

    摘要翻译: 一种在水中形成不稳定油的乳液的方法包括以下步骤:提供碱金属盐溶液和表面活性剂的混合物,并将混合物泵送到含有API重力小于或等于 至26,以便在井中提供不稳定的乳液,不稳定的乳液具有烃作为分散相,溶液作为连续相,并且烃与溶液的重量比至少为约50:50。

    Solids-stabilized emulsion
    4.
    发明授权
    Solids-stabilized emulsion 有权
    固体稳定的乳液

    公开(公告)号:US5910467A

    公开(公告)日:1999-06-08

    申请号:US158162

    申请日:1998-09-22

    申请人: James R. Bragg

    发明人: James R. Bragg

    摘要: The disclosed invention is a solids-stabilized emulsion and method for making same for use in recovering hydrocarbons from a subterranean formation. More specifically, the emulsion comprises oil and water and is stabilized using undissolved solid particles, which are preferably at least partially oleophilic. Carbon dioxide or another gas is added to the emulsion to adjust the emulsion's viscosity to the desired level. The solids-stabilized emulsion may be used either as a drive fluid for displacing hydrocarbons from the formation or to produce a barrier for diverting flow of fluids in the formation. Such solid particles may be either formation solid particles (i.e., indigenous to the formation) or nonformation solid particles (i.e., obtained from outside the formation). Nonformation solid particles may either be naturally occurring or synthetic. Some preferred solids include clays, quartz, feldspar, gypsum, coal dust, asphaltenes, and polymers.

    摘要翻译: 所公开的本发明是固体稳定的乳液及其制备方法,用于从地层中回收烃。 更具体地,乳液包括油和水,并且使用未溶解的固体颗粒进行稳定,所述固体颗粒优选至少部分为亲油的。 将二氧化碳或另一种气体加入到乳液中以将乳液的粘度调节到所需的水平。 固体稳定的乳液可用作用于从地层中置换烃的驱动流体或产生用于转移地层中的流体流动的阻挡层。 这样的固体颗粒可以是形成固体颗粒(即形成固有的)或非形成固体颗粒(即从地层外获得)。 无定形固体颗粒可以是天然存在的或合成的。 一些优选的固体包括粘土,石英,长石,石膏,煤粉,沥青质和聚合物。

    Oil recovery method using an emulsion
    5.
    发明授权
    Oil recovery method using an emulsion 失效
    采用乳液的油回收方法

    公开(公告)号:US5855243A

    公开(公告)日:1999-01-05

    申请号:US62167

    申请日:1998-04-17

    申请人: James R. Bragg

    发明人: James R. Bragg

    摘要: The disclosed invention provides a method for recovering hydrocarbons from a subterranean formation by injecting an emulsion, comprising oil and water, into the formation. More specifically, the emulsion is stabilized using undissolved solid particles, which are preferably at least partially oleophilic. The solids-stabilized emulsion may be used either as a drive fluid for displacing hydrocarbons from the formation or to produce a barrier for diverting flow of fluids in the formation. Such solid particles may be either formation solid particles (i.e., indigenous to the formation) or nonformation solid particles (i.e., obtained from outside the formation). Nonformation solid particles may either be naturally occurring or synthetic. Some preferred solids include clays, quartz, feldspar, gypsum, coal dust, asphaltenes, and polymers. Carbon dioxide or another gas may be added to the emulsion to adjust the emulsion's viscosity to the desired level.

    摘要翻译: 所公开的发明提供了一种通过将包含油和水的乳液注入到地层中从地层中回收烃的方法。 更具体地,使用未溶解的固体颗粒来稳定乳液,固体颗粒优选至少部分为亲油的。 固体稳定的乳液可用作用于从地层中置换烃的驱动流体或产生用于转移地层中的流体流动的阻挡层。 这样的固体颗粒可以是形成固体颗粒(即形成固有的)或非形成固体颗粒(即从地层外获得)。 无定形固体颗粒可以是天然存在的或合成的。 一些优选的固体包括粘土,石英,长石,石膏,煤粉,沥青质和聚合物。 可以将二氧化碳或另一种气体加入到乳液中以将乳液的粘度调节到所需的水平。

    Method for oil recovery from reservoir rock formations
    7.
    发明授权
    Method for oil recovery from reservoir rock formations 失效
    储层岩层采油方法

    公开(公告)号:US4582138A

    公开(公告)日:1986-04-15

    申请号:US585655

    申请日:1984-03-02

    申请人: Dieter Balzer

    发明人: Dieter Balzer

    IPC分类号: C09K8/584 E21B43/22

    CPC分类号: C09K8/584 Y10S507/937

    摘要: A process for the tenside flooding of reservoirs of medium and high salinities, comprises injecting an emulsion of an oil phase, an aqueous phase, and carboxymethylated oxethylate by flooding before and/or after a solution or dispersion of carboxymethylated oxethylate. In each case, the tenside and/or the emulsifier is selected so that the phase inversion temperature of the system of reservoir oil/flooding water/tenside/optional additives or reservoir oil/flooding water/emulsifier/optional additives, respectively, lies about 0.degree. to 10.degree. C. above the reservoir temperature. This method reduces tenside retention as compared with the state of the art.

    摘要翻译: 用于中高盐度储层的表面流失的方法包括在羧甲基化的氧乙酯的溶液或分散体之前和/或之后,通过浸渍注入油相,水相和羧甲基化的氧乙酸酯的乳液。 在每种情况下,选择表面活性剂和/或乳化剂,使得储层油/淹水/表面活性剂/任选的添加剂或储层油/淹水/乳化剂/任选的添加剂的系统的相转化温度分别为约0 ℃至10℃以上储层温度。 与现有技术相比,该方法降低了表面活性剂的保留性。

    Emulsion oil recovery process usable in high temperature, high salinity
formations
    8.
    发明授权
    Emulsion oil recovery process usable in high temperature, high salinity formations 失效
    乳化油回收工艺可用于高温,高盐度地层

    公开(公告)号:US4269271A

    公开(公告)日:1981-05-26

    申请号:US901388

    申请日:1978-05-01

    IPC分类号: C09K8/584 C09K8/60 E21B43/22

    CPC分类号: C09K8/584 Y10S507/937

    摘要: Many petroleum formations contain water having high salinity and/or high concentrations of divalent ions such as calcium or magnesium dissolved therein, and are additionally at temperatures from about 70.degree. F. to about 300.degree. F. Most surfactants suitable for use in oil recovery operations are either ineffective in high salinity or high hardness waters, or cannot tolerate the higher temperatures encountered in many such formations. A water-external phase emulsion, microemulsion or micellar dispersion containing a water soluble alkylpolyalkoxyalkylene sulfonate or alkylarylpolyalkoxyalkylene sulfonate and a water-insoluble polyethoxylated aliphatic alcohol (including alkanols) or polyethoxylated alkylphenol nonionic surfactant is an effective fluid for flooding in formations containing water whose salinity is from 70,000 to 220,000 parts per million total dissolved solids and also having temperatures as high as 300.degree. F. The fluid is phase stable over a wide range of formation temperatures and water salinities and hardness values.

    摘要翻译: 许多石油地层含有高盐度和/或高浓度的二价离子如钙或镁溶解在其中的水,另外还含有约70°F至约300°F的温度。适用于油回收操作的大多数表面活性剂 在高盐度或高硬度水域中无效,或者不能耐受许多这种地层遇到的较高温度。 含有水溶性烷基聚烷氧基亚烷基磺酸盐或烷基芳基聚烷氧基亚烷基磺酸盐和水不溶性聚乙氧基化脂肪醇(包括链烷醇)或聚乙氧基化烷基酚非离子表面活性剂的水 - 外相乳液,微乳液或胶束分散体是用于在含盐水的地层中淹水的有效流体, 从70,000到220,000份/百万的总溶解固体,并且还具有高达300°F的温度。在广泛的地层温度和水盐度和硬度值下,流体是相稳定的。

    Corrosion inhibitor intensifier compositions
    10.
    发明授权
    Corrosion inhibitor intensifier compositions 有权
    防腐剂增稠剂组合物

    公开(公告)号:US08716199B2

    公开(公告)日:2014-05-06

    申请号:US13032818

    申请日:2011-02-23

    IPC分类号: C23F11/16 C09K8/60

    摘要: Corrosion inhibitor compounds including a corrosion inhibitor and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.

    摘要翻译: 包括腐蚀抑制剂和缓蚀剂增强剂组合物的腐蚀抑制剂化合物,其包含对应于下式的增强剂化合物:其中R 1是甲基或乙基,R 2是H或烷基,芳基,烷基芳基,烷硫基芳基,烷氧基 芳基,卤代芳基,苯基,烷基苯基,烷硫基苯基,烷氧基苯基或卤代苯基。