Methods for testing for bioaccumulation
    1.
    依法登记的发明

    公开(公告)号:USH2232H1

    公开(公告)日:2009-09-01

    申请号:US11935988

    申请日:2007-11-06

    IPC分类号: G01N33/00

    摘要: Methods comprising: providing a test substance, providing two solvents that are substantially immiscible, introducing a known amount of the test substance and known amounts of the two solvents into a single vessel to create a pre-equilibrium sample, adjusting the concentration of the test substance in the pre-equilibrium sample so that the concentration of the test substance is below the critical micelle concentration of both solvents if the concentration of the test substance is not already below the critical micelle concentration, allowing the test substance to equilibrate between the two solvents over time at a substantially constant temperature, determining the equilibrium concentration of the test substance in each of the solvents, and calculating the partition coefficient.

    Corrosion inhibitor intensifier compositions and associated methods
    2.
    发明授权
    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:US08058211B2

    公开(公告)日:2011-11-15

    申请号:US12001842

    申请日:2007-12-12

    IPC分类号: C09K8/52 C09K8/524 E21B37/06

    摘要: Of the many methods and compositions provided herein, one method includes 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 a compound that corresponds to a formula R1R2XCCOOH, wherein X is a halogen, R1 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group, and R2 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group.

    摘要翻译: 在本文提供的许多方法和组合物中,一种方法包括使金属表面与酸性流体接触的方法,所述酸性流体包含碱性水溶液,酸,腐蚀抑制剂和防腐剂增强剂组合物,所述组合物包含对应于 式R1R2XCCOOH,其中X是卤素,R1包括选自C1-C20烷基,C3-C20环烷基,C1-C20烷氧基和C6-C20芳基中的至少一个基团,以及 R2包含至少一个选自C1-C20烷基,C3-C20环烷基,C1-C20烷氧基和C6-C20芳基的基团。

    Corrosion inhibitor intensifier compositions and associated methods
    4.
    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:US20090156432A1

    公开(公告)日:2009-06-18

    申请号:US12001842

    申请日:2007-12-12

    IPC分类号: C09K8/54

    摘要: Of the many methods and compositions provided herein, one method includes 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 a compound that corresponds to a formula R1R2XCCOOH, wherein X is a halogen, R1 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group, and R2 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group.

    摘要翻译: 在本文提供的许多方法和组合物中,一种方法包括使金属表面与酸性流体接触的方法,所述酸性流体包含碱性水溶液,酸,腐蚀抑制剂和防腐剂增强剂组合物,所述组合物包含对应于 式R1R2XCCOOH,其中X是卤素,R1包括选自C1-C20烷基,C3-C20环烷基,C1-C20烷氧基和C6-C20芳基中的至少一个基团,以及 R2包含至少一个选自C1-C20烷基,C3-C20环烷基,C1-C20烷氧基和C6-C20芳基的基团。

    Compositions and methods of stabilizing subterranean formations containing reactive shales
    5.
    发明授权
    Compositions and methods of stabilizing subterranean formations containing reactive shales 有权
    稳定包含反应性页岩的地下地层的组合物和方法

    公开(公告)号:US07741251B2

    公开(公告)日:2010-06-22

    申请号:US10862132

    申请日:2004-06-04

    IPC分类号: C09K8/588 C09K8/88 C09K8/90

    摘要: The present invention relates to well bore stabilization and, more particularly, to treatment fluids that may reduce the tendency of shales to swell and associated methods. In some embodiments, the present invention provides a method of stabilizing a subterranean formation that comprises a shale, the method comprising contacting the subterranean formation that comprises the shale with a treatment fluid, the treatment fluid comprising a base fluid, and a hydrophobically modified polymer. In other embodiments, the treatment fluids comprise a base fluid and a hydrophilically modified polymer. In yet other embodiments, the present invention provides shale-inhibiting components, treatment fluids, and methods of reducing the tendency of shale to swell when exposed to a treatment fluid.

    摘要翻译: 本发明涉及井眼稳定性,更具体地说,涉及可减少页岩膨胀倾向的相关方法的处理流体。 在一些实施方案中,本发明提供了一种稳定包含页岩的地下地层的方法,该方法包括将包含页岩的地层与处理流体接触,处理流体包含基础流体和疏水改性的聚合物。 在其它实施方案中,处理流体包括基础流体和亲水改性的聚合物。 在其它实施方案中,本发明提供了页岩抑制组分,处理流体和当暴露于处理流体时页岩膨胀趋势的方法。

    Methods of treating a subterranean formation including a biocidal treatment
    7.
    发明申请
    Methods of treating a subterranean formation including a biocidal treatment 审中-公开
    处理包括杀生物处理的地下地层的方法

    公开(公告)号:US20090062156A1

    公开(公告)日:2009-03-05

    申请号:US11897595

    申请日:2007-08-31

    IPC分类号: C09K8/90

    摘要: A method of treating a subterranean formation including with a bactericidal fluid is provided. The method comprises the steps of: (a) continuously mixing to obtain a stream of a treatment fluid: (i) a base fluid comprising water; (ii) an aqueous solution comprising a hypochlorite having a pH equal to or greater than 7; and (iii) a pH-adjusting agent selected to be capable of lowering the pH of water to less than 7; and (b) injecting the treatment fluid into a wellbore. The step of continuously mixing the base fluid, the aqueous solution of hypochlorite, and the pH-adjusting agent is preferably under conditions and in proportions sufficient to obtain a stream of a treatment fluid having a free chlorine concentration of at least 1 ppm by weight of the water in the treatment fluid and having a pH in the range of 4-7.

    摘要翻译: 提供了一种处理含有杀菌流体的地层的方法。 该方法包括以下步骤:(a)连续混合以获得处理流体流:(i)包含水的基础流体; (ii)包含pH等于或大于7的次氯酸盐的水溶液; 和(iii)选择为能够将水的pH降低至小于7的pH调节剂; 和(b)将处理流体注入井眼。 连续混合基础液,次氯酸盐水溶液和pH调节剂的步骤优选的条件和比例足以获得游离氯浓度至少为1重量ppm的处理流体流 处理液中的水,pH在4-7范围内。

    Method for testing for bioaccumulation
    8.
    依法登记的发明

    公开(公告)号:USH2216H1

    公开(公告)日:2008-05-06

    申请号:US10779192

    申请日:2004-02-14

    摘要: For use in estimating or predicting bioaccumulation of a chemical analyte, even a surfactant, log Pow values for the analyte may be determined by calculating the log of the ratio of the concentrations of the analyte in n-octanol and in water, equilibrated using a slow-stir method. In this method, samples of the analyte are prepared and stirred in n-octanol and water (or other largely immiscible solvents) at a rate sufficiently low to avoid emulsions over time at a constant temperature. After stirring, the n-octanol layer and the water layer are sampled and the quantity of analyte in each measured.

    Wettability and fluid displacement in a well
    9.
    依法登记的发明
    Wettability and fluid displacement in a well 有权
    井中润湿性和流体位移

    公开(公告)号:USH1932H

    公开(公告)日:2001-01-02

    申请号:US09281719

    申请日:1999-03-30

    IPC分类号: E21B4700

    CPC分类号: E21B33/13

    摘要: An inverter fluid that intermixes with a non-aqueous (e.g., oil) external/aqueous internal fluid to cause external/internal inversion is designed. This includes testing a selected inverter fluid with a test fluid having a composition nominally equivalent to the composition of the non-aqueous external/aqueous internal fluid. A quantity of the designed inverter fluid is made and placed in the annulus of a well, such as an oil or gas well, to remove the non-aqueous external/aqueous internal fluid on at least a portion of one or more surfaces of the annulus. This can include pumping the inverter fluid along with a stream of cement. The inverter fluid displaces at least part of the non-aqueous external/aqueous internal fluid in the annular region and inverts the coating of non-aqueous external/aqueous internal fluid sufficient to remove the coating ahead of the cement. Determining a suitable inverter fluid comprises: measuring a parameter related to electrical conductivity of an initial mixture including (1) a test fluid having a composition nominally equivalent to the non-aqueous external/aqueous internal fluid and (2) part of a selected inverter fluid; and adding a further part of the selected inverter fluid to the initial mixture until the measured parameter indicates the external/internal phases of the test fluid have inverted.

    摘要翻译: 设计了与非水(例如油)外部/水性内部流体混合以引起外部/内部反转的逆变器流体。 这包括用具有名义上等同于非水外部/水性内部流体的组成的组成的测试流体来测试所选择的逆变器流体。 将一定数量的设计的逆变流体制成并放置在诸如油井或气井之类的井的环形空间中,以在环形空间的一个或多个表面的至少一部分上移除非水的外部/水性内部流体 。 这可以包括泵送逆变器流体和水泥流。 逆变器流体使环形区域中的至少一部分非水性外部/水性内部流体移位,并使非水性外部/水性内部流体的涂层反转,足以移除水泥前方的涂层。 确定合适的逆变器流体包括:测量与初始混合物的电导率相关的参数,包括(1)具有名义上等同于非水性外部/水性内部流体的组成的试验流体和(2)选定的反应器流体的一部分 ; 并将所选择的逆变器流体的另一部分添加到初始混合物,直到所测量的参数指示测试流体的外部/内部相位反转为止。