Drilling fluid additives
    1.
    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
    2.
    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
    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: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
    4.
    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。

    Methods of using water-superabsorbent polymers to reduce heat transfer
    5.
    发明授权
    Methods of using water-superabsorbent polymers to reduce heat transfer 失效
    使用水超吸收聚合物减少热传递的方法

    公开(公告)号:US08136596B2

    公开(公告)日:2012-03-20

    申请号:US12788357

    申请日:2010-05-27

    IPC分类号: E21B36/00 C09K8/10

    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 reclaiming a well completion brine solutions using an organic chelant

    公开(公告)号:US07172703B2

    公开(公告)日:2007-02-06

    申请号:US11145281

    申请日:2005-06-03

    申请人: Paul H. Javora Qi Qu

    发明人: Paul H. Javora Qi Qu

    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/or non-zinc heavy metals; and (ii) calcium and zinc. The chelant is of the formula: and may be either a neutral compound, a corresponding salt, or a corresponding quaternary salt, wherein: D is F—A (Y3)u(Y4)v; R is independently selected from Cp or CpC(O); Cp is a C1–C36 hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; each A is independently selected from —N and —P; Y1 is independently selected from J, —[(F)—A(J)]wY6 and R; J, R1, Y2, Y3, Y4, Y5 and Y6 are independently selected from the group consisting of —H, R, —(F)nCO2Z and —(CH2)nPO(OZ)2; each F is independently selected from a C1–C12 hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; Z is —H or a balanced counterion of an alkali or alkaline earth metal or NH4+; m is 0 to 7; n is 1 to 7; r+s+t is 1 or 2; u+v is 1 or 2; and w is 0 to 7 provided when m is 0, no more than one of R1, Y1, Y2 and Y5 can be —H.

    METHODS FOR CROSSLINKING WATER SOLUBLE POLYMERS FOR USE IN WELL APPLICATIONS
    7.
    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
    8.
    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
    9.
    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。

    Viscosification of high density brines
    10.
    发明授权
    Viscosification of high density brines 失效
    高密度盐水的粘度

    公开(公告)号:US5785747A

    公开(公告)日:1998-07-28

    申请号:US785197

    申请日:1997-01-17

    CPC分类号: C09K3/00 C09K8/08 C09K8/12

    摘要: The present invention provides compositions useful for viscosifying aqueous fluids, methods for making them and methods for using them. In one aspect of the invention, inventive compositions comprise a prehydrating alcohol having at least two hydroxyl groups and having a molecular weight of from about 60 to about 600; an inorganic salt; and a polymer. In a preferred aspect of the invention, the viscosifier composition additionally comprises a solvent having a molecular weight of from about 75 to about 1000. According to another aspect of the invention, inventive compositions comprise a prehydrating alcohol; an inorganic salt; and a polymer; and the composition is essentially free from water. Inventive compositions find advantageous use in viscosifying fluids utilized in subterranean drilling activities such as, for example, drilling, drill-in, completion, hydraulic fracturing, work-over, packer, well treating, testing, spacer, or hole abandonment fluids.

    摘要翻译: 本发明提供了可用于增稠水性流体的组合物,其制备方法和使用它们的方法。 在本发明的一个方面,本发明的组合物包含具有至少两个羟基并且分子量为约60至约600的预水解醇; 无机盐; 和聚合物。 在本发明的优选方面,增粘剂组合物另外包含分子量为约75至约1000的溶剂。根据本发明的另一方面,本发明组合物包含预水合醇; 无机盐; 和聚合物; 并且组合物基本上不含水。 本发明的组合物在地下钻井活动例如钻井,钻进,完井,水力压裂,加工,封隔器,井处理,测试,间隔件或抛空液中的粘稠流体中发现有利的用途。