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    Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation
    1.
    发明授权
    Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation 有权
    使用溶胀剂防止水泥浆料丢失到地层的方法

    公开(公告)号：US06983799B2

    公开(公告)日：2006-01-10

    申请号：US10375206

    申请日：2003-02-27

    申请人： B. Raghava Reddy ,  Frank Zamora ,  James J. Venditto ,  Robert J. Sepulvado

    发明人： B. Raghava Reddy ,  Frank Zamora ,  James J. Venditto ,  Robert J. Sepulvado

    IPC分类号： E21B33/14 ,  E21B33/16

    CPC分类号： E21B33/14 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/514 ,  E21B33/138

    摘要： Methods of cementing in a subterranean formation include passing a swelling agent to a permeable zone in a subterranean formation. The swelling agent is combined with a carrier fluid before being passed to the permeable zone. Upon contacting an aqueous fluid, the swelling agent swells in the permeable zone. The aqueous fluid may already be present in the subterranean formation, or alternatively, it may be introduced to the subterranean formation after passing the swelling agent into the subterranean formation. The swelling agent substantially inhibits a cement slurry subsequently pumped into the subterranean formation from passing through the permeable zone. The cement slurry therefore continues flowing down through the casing and up through the annulus where it sets and forms a strong cement column.

    摘要翻译： 在地层中固井的方法包括使溶胀剂通过地层中的可渗透区域。 溶胀剂在被传送到渗透区之前与载体流体结合。 在与含水流体接触时，溶胀剂在可渗透区域中膨胀。 含水流体可能已经存在于地层中，或者可以在将溶胀剂通入地层之后引入地下地层。 溶胀剂基本上抑制随后泵送到地层中的水泥浆通过可渗透区。 因此，水泥浆料继续向下流过套管并向上流过其所在的环形区并形成一个坚固的水泥柱。

    Methods of delivering material downhole
    2.
    发明授权
    Methods of delivering material downhole 有权
    井下输送材料的方法

    公开(公告)号：US07891424B2

    公开(公告)日：2011-02-22

    申请号：US11090496

    申请日：2005-03-25

    申请人： Prentice G. Creel ,  B. Raghava Reddy ,  Eldon D. Dalrymple ,  Ramzi I. Abdulkadir ,  James J. Venditto ,  Ronald J. Crook

    发明人： Prentice G. Creel ,  B. Raghava Reddy ,  Eldon D. Dalrymple ,  Ramzi I. Abdulkadir ,  James J. Venditto ,  Ronald J. Crook

    IPC分类号： E21B33/13

    CPC分类号： E21B27/02

    摘要： A package and methods for treating a wellbore using the same. In one embodiment, the method comprises servicing a wellbore in contact with a subterranean formation by placing a material in the wellbore, wherein the material is disposed within a closed container. The material is suitable for use in a wellbore and is capable of plugging a flow pathway. The method further comprises releasing the material from the container. In an embodiment, the material is a swelling agent, which may plug a permeable zone.

    摘要翻译： 一种用于处理使用其的井眼的包装和方法。 在一个实施例中，该方法包括通过将材料放置在井眼中来维修与地下地层接触的井眼，其中所述材料设置在密闭容器内。 该材料适用于井眼，并且能够堵塞流动路径。 该方法还包括从容器中释放材料。 在一个实施方案中，该材料是可以堵塞可渗透区域的溶胀剂。

    Drilling fluid component
    4.
    发明授权
    Drilling fluid component 有权
    钻井液成分

    公开(公告)号：US07220708B2

    公开(公告)日：2007-05-22

    申请号：US10375787

    申请日：2003-02-27

    申请人： Frank Zamora ,  Larry S. Eoff ,  Eldon Dwyann Dalrymple ,  B. Raghava Reddy

    发明人： Frank Zamora ,  Larry S. Eoff ,  Eldon Dwyann Dalrymple ,  B. Raghava Reddy

    IPC分类号： C09K8/588 ,  C09K8/22 ,  E21B21/14

    CPC分类号： C09K8/32 ,  C09K8/035 ,  C09K8/12 ,  C09K8/5083

    摘要： A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternative embodiment, a method is provided for producing a water soluble polymer formed from a hydrophilic monomer for use as a relative permeability modifying polymer.

    摘要翻译： 提供了一种用于与钻井液一起使用的相对渗透性改性聚合物的方法和组合物，其包含由疏水或疏水改性的亲水单体和亲水单体形成的水溶性聚合物。 在替代实施方案中，提供了一种用于制备由亲水性单体形成的用作相对渗透性改性聚合物的水溶性聚合物的方法。

    Methods of generating gas in well fluids
    5.
    发明授权
    Methods of generating gas in well fluids 有权
    在井液中产生气体的方法

    公开(公告)号：US07156175B2

    公开(公告)日：2007-01-02

    申请号：US10789712

    申请日：2004-02-27

    申请人： B. Raghava Reddy ,  Krishna M. Ravi ,  James E. Griffith ,  Frank Zamora ,  Karen Luke ,  John L. Dennis, Jr. ,  Ricky A. Cox

    发明人： B. Raghava Reddy ,  Krishna M. Ravi ,  James E. Griffith ,  Frank Zamora ,  Karen Luke ,  John L. Dennis, Jr. ,  Ricky A. Cox

    IPC分类号： E21B43/22 ,  E21B43/27

    CPC分类号： C09K8/38

    摘要： The present invention relates to methods of chemically generating gas in aqueous fluids utilized in the drilling and completion of wells such as drilling fluids, spacer fluids, and aqueous acid solutions. In one embodiment, the invention provides a method of preventing the formation of fractures in a subterranean formation during a drilling operation. In other embodiments, the present invention provides methods of separating a first fluid and a second fluid in a subterranean formation; methods of forming lightweight well treatment fluids; methods of enhancing the permeability of a subterranean zone; lightweight drilling fluids; lightweight spacer fluids; foamed aqueous acidic well treatment fluids; and methods of making foamed aqueous and aqueous acidic well treatment fluids.

    摘要翻译： 本发明涉及在钻井液，间隔液和含水酸溶液的钻井和完井中使用的含水流体中化学产生气体的方法。 在一个实施例中，本发明提供了一种在钻井操作期间防止在地层中形成裂缝的方法。 在其它实施例中，本发明提供了分离地下地层中的第一流体和第二流体的方法; 形成轻型井处理液的方法; 提高地下区域渗透性的方法; 轻型钻井液; 轻质间隔液; 发泡水性酸性处理液; 以及制造发泡的含水和酸性水溶液的处理流体的方法。

    Systems and methods for placing a braided, tubular sleeve in a well bore
    7.
    发明授权
    Systems and methods for placing a braided, tubular sleeve in a well bore 失效
    将编织的管状套管放置在井眼中的系统和方法

    公开(公告)号：US07082998B2

    公开(公告)日：2006-08-01

    申请号：US10630083

    申请日：2003-07-30

    申请人： Frank Zamora ,  B. Raghava Reddy ,  Mark D. Kalman

    发明人： Frank Zamora ,  B. Raghava Reddy ,  Mark D. Kalman

    IPC分类号： E21B29/00 ,  E21B17/02 ,  F16L11/02

    CPC分类号： E21B43/108 ,  D04C1/06 ,  E21B23/00 ,  E21B29/10 ,  E21B43/103

    摘要： Systems and methods for placing a tubular, braided sleeve in a well bore. The sleeve is positioned within an interior of a carrier configured to hold the sleeve in an undeployed position, followed by lowering the carrier into the well bore. The sleeve may be used in conjunction with a curable resin that can be solidified to set the sleeve into a tubular cross section. After securing the sleeve to the well bore, the carrier may be moved away from the bottom of the well bore, deploying the sleeve and extending it along the contour of the well bore. The tubular sleeve may then be subsequently expanded in situ to increase its diameter. The curable resin can then cured to make the sleeve substantially rigid.

    摘要翻译： 将管状编织套管放置在井眼中的系统和方法。 套筒定位在载体的内部，其构造成将套管保持在未部署的位置，随后将载体降低到井眼中。 套筒可以与可固化的可固化树脂一起使用，以将套管固定成管状横截面。 在将套筒固定到井眼之后，载体可以移动远离井筒的底部，展开套筒并沿着井眼的轮廓延伸。 随后可以将管状套筒原位膨胀以增加其直径。 然后可固化树脂固化，使套筒基本上刚性。

    Methods of generating a gas in a plugging composition to improve its sealing ability in a downhole permeable zone
    8.
    发明授权
    Methods of generating a gas in a plugging composition to improve its sealing ability in a downhole permeable zone 有权
    在封堵组合物中产生气体以提高其在井下渗透区域中的密封能力的方法

    公开(公告)号：US07642223B2

    公开(公告)日：2010-01-05

    申请号：US10967121

    申请日：2004-10-18

    申请人： Ashok K. Santra ,  B. Raghava Reddy ,  Frank Zamora ,  Giddo Antonio Ocana Gomez ,  Ronnie G. Morgan ,  Mark R. Savery

    发明人： Ashok K. Santra ,  B. Raghava Reddy ,  Frank Zamora ,  Giddo Antonio Ocana Gomez ,  Ronnie G. Morgan ,  Mark R. Savery

    IPC分类号： E21B33/13

    CPC分类号： C09K8/516 ,  E21B33/138

    摘要： Methods of servicing a wellbore include generating gas in a plugging composition in situ within a permeable zone in the wellbore, thereby improving the ability of the plugging composition to seal the permeable zone. The gas may be generated via a chemical reaction by, for example, introducing first and second reactants to the plugging composition that can react at ambient temperatures in the wellbore. In an embodiment, the first and second reactants are concurrently pumped into the wellbore via separate flow paths within two concentric conduits to the permeable zone where they are allowed to contact each other in the presence of the plugging composition. In another embodiment, the first reactant, the second reactant, and a retarder for slowing the reaction between the two reactants are concurrently pumped to the permeable zone. In yet another embodiment, one of the reactants is encapsulated to delay a reaction between the two reactants.

    摘要翻译： 维护井筒的方法包括在井筒内的可渗透区域内原位生成堵塞组合物中的气体，从而提高堵塞组合物密封可渗透区域的能力。 可以通过例如将第一和第二反应物引入到可在井眼中的环境温度下反应的堵塞组合物的化学反应来产生气体。 在一个实施方案中，第一和第二反应物同时通过在渗透区域的两个同心管道内的分离的流动路径泵送到井筒中，在渗透区域允许它们在堵塞组合物的存在下彼此接触。 在另一个实施方案中，用于减缓两种反应物之间的反应的第一反应物，第二反应物和延迟剂同时泵送到可渗透区域。 在另一个实施方案中，一种反应物被包封以延迟两种反应物之间的反应。

    Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
    10.
    发明申请
    Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same 有权
    包含热活化增粘化合物的井眼维修流体及其使用方法

    公开(公告)号：US20080121395A1

    公开(公告)日：2008-05-29

    申请号：US12021889

    申请日：2008-01-29

    申请人： B. Raghava Reddy ,  Frank Zamora ,  Ronney R. Koch ,  Joe M. Sandy ,  Ian D. Robb

    发明人： B. Raghava Reddy ,  Frank Zamora ,  Ronney R. Koch ,  Joe M. Sandy ,  Ian D. Robb

    IPC分类号： E21B43/267

    CPC分类号： C09K8/035 ,  C09K8/68 ,  C09K8/685 ,  C09K8/706

    摘要： Well bore servicing fluids are provided that include a thermally activated viscosification compound. Further, methods of servicing a well bore are provided that include displacing such a servicing fluid into the well bore, wherein a viscosity of the servicing fluid increases as it passes down the well bore due to its temperature increasing. Thus, the viscosity of the servicing fluid is effective to suspend solids therein when the servicing fluid is in the well bore. The servicing fluid may be, for example, a cement slurry, a drilling fluid, a gravel packing fluid, a fracturing fluid, a completion fluid, or a work-over fluid. In an embodiment, the thermally activated viscosification compound includes at least one water-soluble hydrophobically modified polymer comprising a hydrophobic substituent having from about 1 to about 22 carbon atoms.

    摘要翻译： 提供井眼维修流体，其包括热活化增稠化合物。 此外，提供了维修井眼的方法，其包括使这种维修流体移动到井眼中，其中当维修流体由于其温度升高而向下通过井眼时，维修流体的粘度增加。 因此，当维修流体在井眼中时，维修流体的粘度有效地将固体悬浮在其中。 维修流体可以是例如水泥浆，钻井液，砾石填充流体，压裂流体，完井流体或修补流体。 在一个实施方案中，热活化的增粘化合物包括至少一种包含具有约1至约22个碳原子的疏水取代基的水溶性疏水改性聚合物。