Methods for crosslinking water soluble polymers for use in well applications
    1.
    发明授权
    Methods for crosslinking water soluble polymers for use in well applications 有权
    交联水溶性聚合物用于井用途的方法

    公开(公告)号:US08932998B2

    公开(公告)日:2015-01-13

    申请号:US12573544

    申请日:2009-10-05

    摘要: A method for forming a well and pipeline treating fluid is provided. The method comprises combining a cross-linkable gelling polymer, a scavenging compound capable of reducing a concentration of divalent and polyvalent metal ions and salts thereof available for reaction, a hydration solvent and optionally an acid. The resulting mixture has a pH ranging from about 3 to about 7 and a first viscosity. The mixture is maintained at conditions suitable for hydration of the cross-linkable gelling polymer until the mixture has a second viscosity that is greater than the first viscosity. The mixture is combined with an aqueous based fluid and at least one cross-linking agent. The pH of the mixture is raised to a sufficient level to allow a desired degree of cross-linking to occur. Other methods, a well and pipeline treating gel and a well and pipeline treating fluid are also provided.

    摘要翻译: 提供了一种形成井和管道处理流体的方法。 该方法包括将可交联的胶凝聚合物,能够还原二价和多价金属离子的浓度的清除化合物及其可用于反应的盐,水合溶剂和任选的酸的组合。 所得混合物具有约3至约7的pH和第一粘度。 将混合物保持在适于水合可交联胶凝聚合物的条件下,直到混合物具有大于第一粘度的第二粘度。 将混合物与含水基流体和至少一种交联剂组合。 将混合物的pH提高到足够的水平以允许发生所需程度的交联。 还提供了其它方法,井和管道处理凝胶和井和管道处理流体。

    Method of reclaiming brine solutions using an organic chelant
    2.
    发明授权
    Method of reclaiming brine solutions using an organic chelant 有权
    使用有机螯合剂回收盐水溶液的方法

    公开(公告)号:US07674384B2

    公开(公告)日:2010-03-09

    申请号:US11701888

    申请日:2007-02-02

    申请人: Paul H. Javora Qi Qu

    发明人: Paul H. Javora Qi Qu

    IPC分类号: B01D15/00 E21B43/34

    摘要: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(R21)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R2)R3, EO—N═C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(R21)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1-C30 alkyl or aralkyl group or a derivative thereof and R20 and R21 are independently selected from —OH, —OR1 and R1.

    摘要翻译: 通过使用能够区分(i)铁和非锌重金属的有机螯合剂回收完井盐水溶液的方法; 和(ii)钙和锌。 螯合剂含有选自-CO 2 H或-PO(R 21)R 20的官能团或其盐或酯,-C(O) - , - OE,-SE,-N = C(R 2)R 3,EO- N = C(R2)R3,-N(R2)R3和-N(C(O)R1)任选被-COOH或-PO(R21)R20取代的R2基团或其盐或酯,-SE或 -OE基,其中R2和R3独立地选自E或与氮,磷,氧或硫形成,杂环; E为R1或-H; R1是C1-C30烷基或芳烷基或其衍生物,R20和R21独立地选自-OH,-OR1和R1。

    Method of reclaiming brine solutions using an organic chelant
    3.
    发明授权
    Method of reclaiming brine solutions using an organic chelant 有权
    使用有机螯合剂回收盐水溶液的方法

    公开(公告)号:US07144512B2

    公开(公告)日:2006-12-05

    申请号:US10623044

    申请日:2003-07-18

    IPC分类号: B01D15/00

    摘要: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(OH)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R2)R3, EO—N═C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(OH)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1–C30 alkyl or aralkyl group or a derivative thereof and R20 is —OH or R1.

    摘要翻译: 通过使用能够区分(i)铁和非锌重金属的有机螯合剂回收完井盐水溶液的方法; 和(ii)钙和锌。 螯合剂含有选自-CO 2 H或-PO(OH)R 20的官能团或其盐或酯,-C(O) - , -OE,-SE,-NC(R 2)R 3,EO-NC(R 2)R 3, -N(R 2)R 3,和-N(C(O)R 1)R 2, 任选被-COOH或-PO(OH)R 20或其盐或酯取代的-SE或-OE基团,其中R 2和R 3, 独立地选自E或其形式,具有氮,磷,氧或硫,杂环; E是R 1或-H; R 1是C 1 -C 30烷基或芳烷基或其衍生物,R 20是 - OH或R 1。

    Method of using water-in-oil emulsion to remove oil base or synthetic oil base filter cake
    4.
    发明授权
    Method of using water-in-oil emulsion to remove oil base or synthetic oil base filter cake 有权
    使用油包水乳液去除油基或合成油基滤饼的方法

    公开(公告)号:US07481273B2

    公开(公告)日:2009-01-27

    申请号:US11820085

    申请日:2007-06-18

    IPC分类号: E21B37/00 C09K8/52

    摘要: Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition, such emulsions are effective in the displacement of oil base drilling muds and/or residues from such muds from wells. The emulsion may also be used to break the interfacial and/or rheological properties of oil base mud and synthetic oil base mud filter cakes, and act as a demulsifier to break the water-in-oil emulsion present in such oil base and synthetic oil base muds. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.

    摘要翻译: 流体生产或注入井可用油包水乳液处理,以除去或抑制不需要的颗粒,包括管道涂料,沥青质和石蜡。 此外,这种乳液在油井钻井泥浆和/或来自井的这种泥浆的残留物的位移中是有效的。 该乳液也可用于破坏油基泥浆和合成油基泥浆滤饼的界面和/或流变性能,并且用作破乳剂以破坏这种油基和合成油基中存在的油包水乳液 泥土 油包水乳液可以任选地含有分散剂以及表面活性剂。

    Method of removing filter cake
    5.
    发明申请
    Method of removing filter cake 审中-公开
    去除滤饼的方法

    公开(公告)号:US20080210428A1

    公开(公告)日:2008-09-04

    申请号:US11731388

    申请日:2007-03-30

    IPC分类号: E21B37/06

    CPC分类号: C09K8/52

    摘要: A filter cake deposited by a drilling fluid, drill-in fluid or fluid loss control pill may be removed from a wellbore by introducing into the wellbore a dispersing agent of an organic amino phosphonic acid, ester or salt. The dispersing agent forms a dispersion containing at least a portion of the drilled solids. The dispersing agent may be introduced into the wellbore as a component of a filter cake removal treatment fluid or either prior to or after introduction of the filter cake removal treatment fluid.

    摘要翻译: 通过将钻井液,钻入流体或流体损失控制丸沉积的滤饼可以通过向井筒中引入有机氨基膦酸酯或盐的分散剂而从井筒中除去。 分散剂形成含有至少一部分钻孔固体的分散体。 可以将分散剂作为滤饼除去处理流体的组分或在引入滤饼去除处理流体之前或之后引入井眼。

    High density, viscosified, aqueous compositions having superior
stability under stress conditions
    6.
    发明授权
    High density, viscosified, aqueous compositions having superior stability under stress conditions 失效
    高密度,粘稠的含水组合物在应力条件下具有优异的稳定性

    公开(公告)号:US6100222A

    公开(公告)日:2000-08-08

    申请号:US783459

    申请日:1997-01-16

    IPC分类号: C09K8/08 C09K8/12 C09K7/02

    CPC分类号: C09K8/08 C09K8/12 C09K2208/18

    摘要: Advantageous aqueous mixed salt systems viscosified with water-soluble or water-dispersable polymers which are superior to corresponding single salt systems of similar densities are provided. The mixed salt systems comprise water; a water-soluble or water-dispersable polymer capable of viscosifying an aqueous medium; one or more cations including a member selected from the group consisting of lithium, sodium, potassium, cesium, magnesium, calcium, zinc, or mixtures thereof; and one or more anions including a member selected from the group consisting of chloride, bromide, iodide, formate, nitrate, acetate, cyanate, thiocyanate, a zinc complex anion or mixtures thereof; there being present either at least two cations or at least two anions. Inventive viscosified mixed salt systems display--under such stressing factors as aging, heat, mechanical agitation, and shear--greater stability compared to the single salt systems of similar densities. Also provided are methods for making viscosified mixed salt systems and methods for advantageously using the same as drilling, drill-in, completion, hydraulic fracturing, work-over, packer, well treating, testing, spacer, or hole abandonment fluids.

    摘要翻译: 提供了优于具有相似密度的相应单盐体系的水溶性或水分散性聚合物增稠的有利的水性混合盐体系。 混合盐系统包括水; 水溶性或水分散性聚合物,其能够使水性介质变稠; 一种或多种阳离子,包括选自锂,钠,钾,铯,镁,钙,锌或其混合物的成员; 和一种或多种阴离子,其包括选自氯化物,溴化物,碘化物,甲酸盐,硝酸盐,乙酸盐,氰酸盐,硫氰酸盐,锌络合物阴离子或其混合物的成员; 存在至少两个阳离子或至少两个阴离子。 本发明的粘稠混合盐体系在与类似密度的单盐体系相比,在诸如老化,热,机械搅拌和剪切更大的稳定性等应力因素下显示。 还提供了用于制造粘稠混合盐体系的方法和有利地使用它们的方法,例如钻井,钻进,完井,水力压裂,研磨,封隔器,井处理,测试,间隔物或抛空液。

    Drilling fluid additives
    7.
    发明授权
    Drilling fluid additives 失效
    钻井液添加剂

    公开(公告)号:US4220585A

    公开(公告)日:1980-09-02

    申请号:US27189

    申请日:1979-04-04

    IPC分类号: C09K8/20 C07G1/00 C09K7/00

    CPC分类号: C08H6/00 C09K8/203

    摘要: A drilling fluid additive effective as a viscosity controlling agent is composed of complex titanium or zirconium lignosulfonates and/or salts of lignosulfonic acid. Alternatively, the additive may be a titanium-iron lignosulfonate and/or salt or lignosulfonic acid or a zirconium-iron lignosulfonate and/or salt of lignosulfonic acid. The additive is effective with the lignin component of the lignosulfonate being in either oxidized or unoxidized form.

    摘要翻译: 作为粘度控制剂有效的钻井液添加剂由木质素磺酸复合物或木质素磺酸锆和/或木质素磺酸盐组成。 或者,添加剂可以是木质素磺酸铁和/或盐或木质素磺酸铁或木质素磺酸锆 - 铁和/或木素磺酸盐。 该添加剂对于木质素磺酸盐的木质素组分是氧化的或未氧化的形式是有效的。

    METHODS FOR CROSSLINKING WATER SOLUBLE POLYMERS FOR USE IN WELL APPLICATIONS
    8.
    发明申请
    METHODS FOR CROSSLINKING WATER SOLUBLE POLYMERS FOR USE IN WELL APPLICATIONS 有权
    用于交联水溶性聚合物的方法用于更好的应用

    公开(公告)号:US20110082057A1

    公开(公告)日:2011-04-07

    申请号:US12573544

    申请日:2009-10-05

    摘要: A method for forming a well and pipeline treating fluid is provided. The method comprises combining a cross-linkable gelling polymer, a scavenging compound capable of reducing a concentration of divalent and polyvalent metal ions and salts thereof available for reaction, a hydration solvent and optionally an acid. The resulting mixture has a pH ranging from about 3 to about 7 and a first viscosity. The mixture is maintained at conditions suitable for hydration of the cross-linkable gelling polymer until the mixture has a second viscosity that is greater than the first viscosity. The mixture is combined with an aqueous based fluid and at least one cross-linking agent. The pH of the mixture is raised to a sufficient level to allow a desired degree of cross-linking to occur. Other methods, a well and pipeline treating gel and a well and pipeline treating fluid are also provided.

    摘要翻译: 提供了一种形成井和管道处理流体的方法。 该方法包括将可交联的胶凝聚合物,能够还原二价和多价金属离子的浓度的清除化合物及其可用于反应的盐,水合溶剂和任选的酸的组合。 所得混合物具有约3至约7的pH和第一粘度。 将混合物保持在适于水合可交联胶凝聚合物的条件下,直到混合物具有大于第一粘度的第二粘度。 将混合物与含水基流体和至少一种交联剂组合。 将混合物的pH提高到足够的水平以允许发生所需程度的交联。 还提供了其它方法,井和管道处理凝胶和井和管道处理流体。

    Method of using water-superabsorbent polymer in production tubing and pipes
    9.
    发明授权
    Method of using water-superabsorbent polymer in production tubing and pipes 失效
    在生产管道和管道中使用水超吸收聚合物的方法

    公开(公告)号:US07762332B2

    公开(公告)日:2010-07-27

    申请号:US11589461

    申请日:2006-10-30

    IPC分类号: E21B36/00 E21B43/24 C09K8/68

    CPC分类号: E21B36/003 C09K8/592

    摘要: A thermal insulating packer fluid contains at least one water superabsorbent polymer and optionally water and/or brine, and a viscosifying polymer. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus.

    摘要翻译: 绝热封隔器流体包含至少一种水超吸收性聚合物和任选的水和/或盐水,以及增粘聚合物。 该组合物能够抑制生产管道不期望的热损失或不受控制的热传递至外环。 组合物的粘度足以降低环形空间内的对流流速。

    Method of Using Water-in-Oil Emulsion to Remove Oil Base or Synthetic Oil Base Filter Cake
    10.
    发明申请
    Method of Using Water-in-Oil Emulsion to Remove Oil Base or Synthetic Oil Base Filter Cake 审中-公开
    使用油包水乳液去除油基或合成油基过滤蛋糕的方法

    公开(公告)号:US20090114394A1

    公开(公告)日:2009-05-07

    申请号:US12345505

    申请日:2008-12-29

    IPC分类号: E21B37/08 C09K8/52

    摘要: Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition, such emulsions are effective in the displacement of oil base drilling muds and/or residues from such muds from wells. The emulsion may also be used to break the interfacial and/or rheological properties of oil base mud and synthetic oil base mud filter cakes, and act as a demulsifier to break the water-in-oil emulsion present in such oil base and synthetic oil base muds. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.

    摘要翻译: 流体生产或注入井可用油包水乳液处理,以除去或抑制不需要的颗粒,包括管道涂料,沥青质和石蜡。 此外,这种乳液在油井钻井泥浆和/或来自井的这种泥浆的残留物的位移中是有效的。 该乳液也可用于破坏油基泥浆和合成油基泥浆滤饼的界面和/或流变性能,并且用作破乳剂以破坏这种油基和合成油基中存在的油包水乳液 泥土 油包水乳液可以任选地含有分散剂以及表面活性剂。