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41. 发明授权

US07799744B2 Polymer coated particulates 有权
标题翻译：聚合物涂层微粒
公开(公告)号：US07799744B2
公开(公告)日：2010-09-21
申请号：US11076005
申请日：2005-03-09
申请人： Thomas D. Welton , Philip D. Nguyen
发明人： Thomas D. Welton , Philip D. Nguyen
IPC分类号： C09K8/588
CPC分类号： C09K8/805 , B01J13/02 , B01J13/22 , Y10T428/2998
摘要： The present invention relates to polymer-coated particulates suitable for use in subterranean operations such as gravel packing, frac-packing, and hydraulic fracturing. One embodiment of the present invention provides improved particulates for use in a subterranean formation, comprising particulates at least partially coated with a polymer, wherein the polymer is deposited on the particulates by at least partially coating the particulates with a polymer solution comprising the polymer and a solvent and then exposing the particulates to an aqueous medium such that the solvent substantially dissociates from the polymer solution and such that the polymer substantially remains on the particulates.
摘要翻译：本发明涉及适合用于地下操作的聚合物涂覆的颗粒，例如砾石填充，压裂填料和水力压裂。本发明的一个实施方案提供了用于地下地层的改进的颗粒，其包括至少部分地涂覆有聚合物的颗粒，其中所述聚合物通过用包含所述聚合物的聚合物溶液至少部分地涂覆所述颗粒而沉积在所述颗粒上，以及溶剂，然后将颗粒暴露于水性介质，使得溶剂基本上从聚合物溶液中解离，并且使得聚合物基本上保留在颗粒上。

42. 发明授权

US07735558B2 Crosslinked acids comprising derivatized xanthan and subterranean acidizing applications 有权
公开(公告)号：US07735558B2
公开(公告)日：2010-06-15
申请号：US11709551
申请日：2007-02-22
申请人： Thomas D. Welton
发明人： Thomas D. Welton
IPC分类号： E21B43/16 , E21B43/26 , E21B37/00
CPC分类号： C23F11/04 , C09K8/74 , C23F11/173
摘要： Many methods are provided herein including, in one embodiment, a method comprising: providing a fluid that comprises an acid, crosslinked oxidized xanthan, and optionally, a base fluid; placing the fluid in a well bore penetrating a subterranean formation; and allowing the fluid to acidize at least a portion of the formation or damage contained therein. In another embodiment, herein provided is a fluid for subterranean uses comprising an acid and crosslinked, oxidized xanthan.

43. 发明授权

US07727935B2 Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids 有权
公开(公告)号：US07727935B2
公开(公告)日：2010-06-01
申请号：US11648019
申请日：2006-12-29
申请人： Thomas D. Welton , David E. McMechan , Jason E. Bryant
发明人： Thomas D. Welton , David E. McMechan , Jason E. Bryant
IPC分类号： C09K8/60
CPC分类号： C09K8/508 , C09K8/08 , C09K8/68 , C09K8/74 , C09K2208/30
摘要： Among many things, in some embodiments, dual-function additives that enhance fluid loss control and the stability of viscoelastic surfactant fluids, and their associated methods of use in subterranean formations, are provided. In one embodiment, the methods comprise: providing a viscoelastic surfactant fluid that comprises an aqueous base fluid, a viscoelastic surfactant, and a dual-function additive that comprises a soap component; and introducing the viscoelastic surfactant fluid into at least a portion of a subterranean formation.

44. 发明申请

US20090291863A1 Methods of Diverting Chelating Agents in Subterranean Treatments 有权
标题翻译：在地下处理中转移螯合剂的方法
公开(公告)号：US20090291863A1
公开(公告)日：2009-11-26
申请号：US12533150
申请日：2009-07-31
申请人： Thomas D. Welton , Bradley L. Todd , Larry S. Eoff
发明人： Thomas D. Welton , Bradley L. Todd , Larry S. Eoff
IPC分类号： C09K8/68
CPC分类号： C09K8/86 , C09K8/528 , C09K8/74
摘要： Methods and compositions including a method comprising: providing a treatment fluid comprising an aqueous fluid, a relative permeability modifier, and a chelating agent; introducing the treatment fluid into a well bore that penetrates a subterranean formation; and allowing at least a first portion of the treatment fluid to penetrate into a portion of the subterranean formation so as to substantially divert a second portion of the treatment fluid to another portion of the subterranean formation.
摘要翻译：方法和组合物，包括一种方法，包括：提供包含水性流体，相对渗透性改性剂和螯合剂的处理流体; 将处理流体引入渗透地下地层的井眼; 并且允许处理流体的至少第一部分渗透到地下地层的一部分中，以便基本上将处理流体的第二部分转移到地下地层的另一部分。

45. 发明授权

US07621334B2 Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods 有权
标题翻译：含有硬葡聚糖和/或二萜的酸性处理液和相关方法
公开(公告)号：US07621334B2
公开(公告)日：2009-11-24
申请号：US11118028
申请日：2005-04-29
申请人： Thomas D. Welton , Richard W. Pauls , Ian D. Robb
发明人： Thomas D. Welton , Richard W. Pauls , Ian D. Robb
IPC分类号： E21B43/16 , E21B43/26
CPC分类号： C09K8/74 , C09K8/528 , C09K8/887 , C09K8/90
摘要： In one embodiment, a method is provided comprising: providing an acidic treatment fluid that comprises a gelling agent that comprises an aqueous base fluid, an acid, and a gelling agent that comprises scleroglucan and/or diutan; and introducing the acidic treatment fluid into a subterranean formation.
摘要翻译：在一个实施方案中，提供了一种方法，其包括：提供包含胶凝剂的酸性处理流体，所述胶凝剂包含含水基础流体，酸和包含硬葡聚糖和/或二脱氧的胶凝剂; 并将酸性处理流体引入地层中。

46. 发明申请

US20090255668A1 Clean Fluid Systems for Partial Monolayer Fracturing 有权
标题翻译：清洁流体系统部分单层压裂
公开(公告)号：US20090255668A1
公开(公告)日：2009-10-15
申请号：US12101099
申请日：2008-04-10
申请人： Jeff T. Fleming , Richard W. Pauls , Thomas D. Welton , David E. McMechan , Bradley L. Todd , Jason Bryant
发明人： Jeff T. Fleming , Richard W. Pauls , Thomas D. Welton , David E. McMechan , Bradley L. Todd , Jason Bryant
IPC分类号： E21B43/267 , E21B47/00 , E21B43/22
CPC分类号： C09K8/685 , C09K8/703 , C09K8/80 , C09K8/805
摘要： Provided are methods that include a method comprising: placing a clean fluid comprising proppant particulates into a portion of a fracture in a subterranean formation, and depositing one or more of the proppant particulates into the fracture to form a partial monolayer. In another aspect, the invention provides methods that include placing a degradable fluid loss additive comprising collagen into a subterranean formation.
摘要翻译：提供的方法包括一种方法，包括：将包含支撑剂颗粒的清洁流体放置在地层中的断裂的一部分中，以及将一种或多种支撑剂颗粒沉积到断裂中以形成部分单层。在另一方面，本发明提供了包括将包含胶原蛋白的可降解流体损失添加剂放置在地层中的方法。

47. 发明授权

US07591313B2 Methods of treating particulates and use in subterranean formations 有权
标题翻译：处理颗粒物并在地下地层中使用的方法
公开(公告)号：US07591313B2
公开(公告)日：2009-09-22
申请号：US11776956
申请日：2007-07-12
申请人： Jim D. Weaver , Billy F. Slabaugh , Robert E. Hanes, Jr. , Diederik van Batenburg , Mark A. Parker , Matthew E. Blauch , Neil A. Stegent , Philip D. Nguyen , Thomas D. Welton
发明人： Jim D. Weaver , Billy F. Slabaugh , Robert E. Hanes, Jr. , Diederik van Batenburg , Mark A. Parker , Matthew E. Blauch , Neil A. Stegent , Philip D. Nguyen , Thomas D. Welton
IPC分类号： E21B43/04 , E21B43/22 , E21B43/267
CPC分类号： C09K8/80 , C09K8/68 , Y10S507/924
摘要： Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of particulates, at least one of which comprises a mineral surface; providing a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate; and allowing the surface-treating reagent modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate. In other embodiments, the methods comprise the use of particulates comprising a modified mineral surface in fluids introduced into subterranean formations.
摘要翻译：提供了改变地下操作中使用的支撑剂颗粒的表面应力活化反应性的方法。在一个实施方案中，所述方法包括：提供多个微粒，其中至少一个包括矿物表面; 提供能够改变颗粒的矿物表面的应激活化反应性的表面处理试剂; 并且允许表面处理试剂改变至少一种颗粒的矿物表面的至少一部分的应力活化反应性。在其它实施方案中，所述方法包括在引入地下地层的流体中使用包含改性矿物表面的颗粒。

48. 发明申请

US20080280789A1 Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove scale from wellbore tubulars or subsurface equipment 有权
标题翻译：使用具有螯合剂的粘稠水溶液刺激油或气体生产的方法以从井眼管或地下设备去除垢
公开(公告)号：US20080280789A1
公开(公告)日：2008-11-13
申请号：US11801200
申请日：2007-05-10
申请人： Thomas D. Welton , Richard W. Pauls
发明人： Thomas D. Welton , Richard W. Pauls
IPC分类号： C09K8/584
CPC分类号： C09K8/528 , C09K8/536 , C09K8/86 , Y10S507/927
摘要： A method for treating a wellbore tubular or subsurface completion equipment to help remove scale is provided. In general, the method comprises the steps of: (A) determining the likelihood of the presence of carbonate scale in the wellbore tubular or subsurface completion equipment; (B) forming or providing a treatment fluid comprising: (i) water; (ii) a chelating agent capable of forming a heterocyclic ring that contains a metal ion attached to at least two nonmetal ions; and (iii) a viscosity-increasing agent; and (C) introducing the treatment fluid into the wellbore tubular or the subsurface completion equipment.
摘要翻译：提供了一种用于处理井眼管状或地下完井设备以帮助去除垢的方法。通常，该方法包括以下步骤：（A）确定在井筒管或地下完井设备中存在碳酸盐垢的可能性; （B）形成或提供处理流体，包括：（i）水; （ii）能够形成含有附着于至少两种非金属离子的金属离子的杂环的螯合剂; 和（iii）增粘剂; 和（C）将处理流体引入井眼管或地下完井设备中。

49. 发明授权

US07413013B2 Surfactant-based fluid loss control agents for surfactant gels and associated fluids and methods 有权
公开(公告)号：US07413013B2
公开(公告)日：2008-08-19
申请号：US11541085
申请日：2006-09-29
申请人： Thomas D. Welton , David E. McMechan , Jason E. Bryant
发明人： Thomas D. Welton , David E. McMechan , Jason E. Bryant
IPC分类号： E21B43/04 , E21B43/22 , E21B43/26
CPC分类号： C09K8/68 , C09K8/06 , C09K8/506 , C09K8/76
摘要： Of the many methods provided, in one aspect, the present invention provides a method comprising: providing a treatment fluid comprising: an aqueous base fluid, a first surfactant, and a surfactant-based fluid loss control agent capable of forming a viscoelastic fluid; and introducing the treatment fluid into a well bore that penetrates the subterranean formation.

50. 发明申请

US20080161212A1 Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids 有权
标题翻译：用于增强流体损失控制和稳定粘弹性表面活性剂流体的双功能添加剂
公开(公告)号：US20080161212A1
公开(公告)日：2008-07-03
申请号：US11647605
申请日：2006-12-29
申请人： Thomas D. Welton , David E. McMechan , Jason E. Bryant
发明人： Thomas D. Welton , David E. McMechan , Jason E. Bryant
IPC分类号： C09K8/76
CPC分类号： C09K8/68 , C09K8/506 , C09K2208/30
摘要： Among many things, in some embodiments, dual-function additives that enhance fluid loss control and the stability of viscoelastic surfactant fluids, and their associated methods of use in subterranean formations, are provided. In one embodiment, the methods comprise: providing a viscoelastic surfactant fluid that comprises an aqueous base fluid, a viscoelastic surfactant, and a dual-function additive that comprises a soap component; and introducing the viscoelastic surfactant fluid into at least a portion of a subterranean formation.
摘要翻译：在许多情况下，在一些实施方案中，提供了增强流体损失控制和粘弹性表面活性剂流体的稳定性的双重功能添加剂及其在地下地层中的相关使用方法。在一个实施方案中，所述方法包括：提供粘弹性表面活性剂流体，其包含基础液体水溶液，粘弹性表面活性剂和包含皂组分的双功能添加剂; 以及将所述粘弹性表面活性剂流体引入到地层的至少一部分中。

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