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公开(公告)号：US06983798B2
公开(公告)日：2006-01-10
申请号：US10379856
申请日：2003-03-05
申请人： Bradley L. Todd
发明人： Bradley L. Todd
IPC分类号： E21B33/13
CPC分类号： E21B33/138 , C09K8/06 , C09K8/516 , C09K8/52 , C09K2208/18 , E21B37/00
摘要： The current invention provides methods of using and drilling and servicing fluid compositions for depositing and removing filter cake from the walls of a well bore. The compositions make use of particulate solid bridging agent comprised of a salt of an organic acid. The bridging particles are dissolvable by a clean-up solution comprised of a mild solvent that is less corrosive than the conventional strong mineral acids used for this purpose.
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公开(公告)号：US06971448B2
公开(公告)日：2005-12-06
申请号：US10376182
申请日：2003-02-26
IPC分类号： F16D69/02 , E21B33/138
CPC分类号： C09K8/512
摘要： Methods and compositions for sealing subterranean zones having temperatures in the range of from about 80° F. to about 300° F. are provided. A method of the invention is basically comprised of the steps of providing a subterranean zone sealing composition that becomes substantially rigid when exposed to subterranean zone temperatures above about 80° F. and has a pH above about 8.5 comprised of water, a substantially fully hydrated depolymerized polymer and a cross-linking agent. The sealing composition is introduced into the subterranean zone whereby it becomes rigid and seals the zone. The sealing composition can subsequently be removed by contact with a fluid having a pH below about 8 when a boron compound is utilized as the cross-linking agent.
摘要翻译： 提供了用于密封温度在约80°F至约300°F范围内的地下区域的方法和组合物。 本发明的方法基本上包括以下步骤：提供地下区域密封组合物，当暴露于高于约80°F的地下区域温度时变得基本上刚性，并且具有高于约8.5的pH，由水组成，基本上完全水合的解聚 聚合物和交联剂。 密封组合物被引入地下区域，由此它变得刚性并密封该区域。 当硼化合物用作交联剂时，密封组合物随后可以通过与pH低于约8的流体接触来除去。
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公开(公告)号：US06924254B2
公开(公告)日：2005-08-02
申请号：US10393302
申请日：2003-03-20
申请人： Bradley L. Todd
发明人： Bradley L. Todd
CPC分类号： C09K8/608 , C09K8/08 , C09K8/52 , C09K8/905 , C09K2208/26 , Y10S507/927 , Y10S507/929
摘要： Viscous well treating fluids and methods of treating subterranean zones penetrated by well bores are provided. The viscous fluids are basically comprised of water, a gelling agent and a delayed viscosity breaker comprising pentanedione peroxide.
摘要翻译： 提供粘性井处理流体和处理由井眼渗透的地下区域的方法。 粘性流体基本上由水，胶凝剂和包含戊二酮过氧化物的延迟粘度破坏剂构成。
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公开(公告)号：US4445465A
公开(公告)日：1984-05-01
申请号：US478404
申请日：1983-03-24
CPC分类号： F28G15/04 , F22B37/483
摘要： A sludge cleaning lance advancing apparatus includes a frame having a lead screw rotatably disposed in the frame. An electric stepping motor is connected to the frame and a belt and pulley drive is connected between the stepping motor and the lead screw for rotating the lead screw upon rotation of a shaft of the stepping motor. A lance carrier has an internal screw thread engaging the lead screw, and the lance carrier and lead screw are so arranged and constructed that the lance carrier is moved longitudinally relative to the lead screw as the lead screw is rotated relative to the lance carrier. A lance is carried by the lance carrier. A handwheel is attached to the lead screw for manually rotating the lead screw to initially position the lance. An alignment rod is provided to aid in this initial positioning.
摘要翻译： 污泥清洗枪推进装置包括具有可旋转地设置在框架中的导螺杆的框架。 电动步进电机连接到框架上，带式和带轮驱动器连接在步进电机和导螺杆之间，用于在步进电机的轴旋转时旋转导螺杆。 喷枪托架具有接合导螺杆的内螺纹，并且喷枪托架和导螺杆被布置和构造成使得当导螺杆相对于喷枪托架旋转时，喷枪托架相对于丝杠纵向移动。 长矛由长枪承运人承担。 手轮连接到导螺杆上，用于手动旋转导螺杆以初始定位喷枪。 提供了一个对准杆以帮助进行初始定位。
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85.发明授权公开(公告)号：US08853137B2
公开(公告)日：2014-10-07
申请号：US13017611
申请日：2011-01-31
申请人： Bradley L. Todd , Thomas D. Welton
发明人： Bradley L. Todd , Thomas D. Welton
IPC分类号： C09K8/60 , C09K8/68 , E21B43/267 , E21B43/26 , C09K8/80 , C09K8/516 , C09K8/92 , C09K8/03 , C09K8/536 , C09K8/72
CPC分类号： C09K8/03 , C09K8/516 , C09K8/536 , C09K8/72 , C09K8/80 , C09K8/92 , E21B43/267 , Y10S507/922 , Y10S507/924
摘要： A method of increasing the fracture complexity in a treatment zone of a subterranean formation is provided. The subterranean formation is characterized by having a matrix permeability less than 1.0 microDarcy. The method includes the step of pumping one or more fracturing fluids into a far-field region of a treatment zone of the subterranean formation at a rate and pressure above the fracture pressure of the treatment zone. A first fracturing fluid of the one or more fracturing fluids includes a first solid particulate, wherein: (a) the first solid particulate includes a particle size distribution for bridging the pore throats of a proppant pack previously formed or to be formed in the treatment zone; and (b) the first solid particulate comprises a degradable material. In an embodiment, the first solid particulate is in an insufficient amount in the first fracturing fluid to increase the packed volume fraction of any region of the proppant pack to greater than 73%. Similar methods using stepwise fracturing fluids and remedial fracturing treatments are provided.
摘要翻译： 提供了一种增加地下地层处理区的断裂复杂性的方法。 地层的特征在于具有小于1.0微加仑的基质渗透性。 该方法包括以高于处理区的断裂压力的速率和压力将一个或多个压裂流体泵送到地层的处理区的远场区域的步骤。 一个或多个压裂流体的第一压裂流体包括第一固体颗粒，其中：（a）第一固体颗粒包括用于桥接预先形成或将要在处理区中形成的支撑剂组的孔喉的粒度分布 ; 和（b）第一固体颗粒包含可降解材料。 在一个实施方案中，第一固体颗粒在第一压裂流体中的量不足以将支撑剂组的任何区域的填充体积分数增加至大于73％。 提供了使用逐步压裂流体和补救压裂处理的类似方法。
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86.发明授权Methods for initiating new fractures in a completed wellbore having existing fractures present 有权在存在现有骨折的完井井筒中引发新骨折的方法公开(公告)号：US08720556B2
公开(公告)日：2014-05-13
申请号：US13307790
申请日：2011-11-30
申请人： Bradley L. Todd
发明人： Bradley L. Todd
IPC分类号： E21B33/138 , E21B43/26 , E21B43/267
摘要： Fracturing operations can be problematic in completed wellbores containing at least one existing fracture, since it can be difficult to seal an existing fracture and initiate a new fracture within a reasonable timeframe due to the presence of particulate materials in the wellbore. Methods for fracturing a completed wellbore can comprise introducing a treatment fluid comprising a plurality of degradable sealing particulates into a completed wellbore penetrating a subterranean formation having an existing fracture therein; sealing the existing fracture with at least a portion of the degradable sealing particulates, thereby forming a degradable particulate seal; after sealing, allowing any degradable sealing particulates remaining in the treatment fluid to degrade, such that the treatment fluid becomes substantially particulate free; and after the treatment fluid becomes substantially particulate free, fracturing the subterranean formation so as to introduce at least one new fracture therein.
摘要翻译： 由于在井眼中存在颗粒材料，因此在合理的时间内可能难以密封现有的裂缝并引发新的断裂，因此在完成的至少存在一个现有裂缝的井眼中，压裂作业可能是成问题的。 压裂完井筒的方法可以包括将包含多个可降解的密封颗粒的处理流体引入穿透其中存在裂缝的地下地层的完井孔中; 用可降解的密封微粒的至少一部分密封现有的裂缝，从而形成可降解的颗粒状密封; 在密封之后，允许残留在处理流体中的任何可降解的密封颗粒降解，使得处理流体基本上不含颗粒物; 并且在处理流体变得基本上不含颗粒之后，压裂地层以在其中引入至少一个新的裂缝。
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87.发明授权公开(公告)号：US08545935B2
公开(公告)日：2013-10-01
申请号：US13435400
申请日：2012-03-30
申请人： Rajesh K. Saini , Bradley L. Todd
发明人： Rajesh K. Saini , Bradley L. Todd
IPC分类号： B05D7/00
摘要： Methods of creating particulates coated with acid-releasing degradable material comprising the steps of: combining an acid-releasing degradable material with a solvent or a plasticizer to create a coating solution; providing a first flowing stream comprising the coating solution; providing a second flowing stream comprising particulates; and, combining the first and second flowing streams to create a third flowing stream comprising particulates coated with the coating solution. Wherein the acid-releasing degradable material comprises at least one acid-releasing degradable material selected from the group consisting of: poly(orthoester); a lactide, a poly(lactide); a glycolide; a poly(glycolide); a poly(ε-caprolactone); a poly(hydroxybutyrate); a substantially water insoluble anhydride; a poly(anhydride); a poly(amino acid); a copolymer of two or more of the above-listed compounds; and any combination thereof.
摘要翻译： 制备涂有释放酸的可降解材料的颗粒的方法，包括以下步骤：将释放酸的可降解材料与溶剂或增塑剂结合以产生涂布溶液; 提供包含所述涂布溶液的第一流动流; 提供包含微粒的第二流动流; 以及组合第一和第二流动流以产生包含涂覆有涂层溶液的微粒的第三流动流。 其中所述释放酸的可降解材料包含至少一种选自以下的释放酸的可降解材料：聚（原酸酯）; 丙交酯，聚（丙交酯）; 乙交酯; 聚（乙交酯）; 聚（ε-己内酯）; 聚（羟基丁酸酯）; 基本上不溶于水的酸酐; 聚（酸酐）; 聚（氨基酸）; 两种或更多种上述化合物的共聚物; 及其任何组合。
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88.发明申请Cleanup Fluids for Anhydrous Borate Compounds and Methods for Use Thereof in Subterranean Formations 有权无水硼酸盐化合物的清洁液及其在地下地层中的应用方法公开(公告)号：US20130118747A1
公开(公告)日：2013-05-16
申请号：US13293524
申请日：2011-11-10
申请人： Bradley L. Todd , Thomas D. Welton
发明人： Bradley L. Todd , Thomas D. Welton
IPC分类号： E21B37/06
摘要： Anhydrous borate compounds can be used in a variety of subterranean treatment operations, where particulates of the anhydrous borate compounds slowly become soluble in an aqueous fluid after facilitating the treatment operation. Cleanup fluids can be used for affecting a more rapid removal of the anhydrous borate compounds from a subterranean formation. Methods for performing a cleanup of anhydrous borate compounds within a subterranean formation can comprise providing a cleanup fluid comprising a polyhydroxylated compound, introducing the cleanup fluid into a subterranean formation having a plurality of anhydrous borate particulates therein, and interacting the polyhydroxylated compound with the anhydrous borate particulates such that the anhydrous borate particulates become soluble in an aqueous fluid.
摘要翻译： 无水硼酸盐化合物可用于各种地下处理操作，其中无机硼酸盐化合物的颗粒在促进处理操作之后缓慢变得可溶于含水流体。 净化液体可用于影响从地下地层更快速地除去无水硼酸盐化合物。 在地层内进行无水硼酸盐化合物的净化的方法可以包括提供包含多羟基化合物的净化流体，将净化液引入到其中具有多个无水硼酸盐颗粒的地层中，并使多羟基化合物与无水硼酸盐相互作用 颗粒使得无水硼酸盐颗粒变得可溶于水性流体。
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公开(公告)号：US08418764B2
公开(公告)日：2013-04-16
申请号：US13292185
申请日：2011-11-09
CPC分类号： C09K8/5083 , C09K8/508 , C09K8/5086 , C09K8/512 , C09K8/516 , C09K8/575 , C09K8/5751 , C09K8/68 , E21B21/003
摘要： Methods of reducing the permeability of a subterranean formation to aqueous-based fluids using a water-soluble relative permeability modifier that comprises a reaction product of a hydrophilic compound and a hydrophilic polymer. In some methods the hydrophilic polymer may be selected from the group consisting of: a polyacrylamide, a polyvinylamine, a poly(vinylamine/vinyl alcohol), an alkyl acrylate polymer, and a combination thereof. In other methods the hydrophilic polymer may be selected from the group consisting of: a polyvinylamine; a poly(vinylamine/vinyl alcohol); a cellulose; a chitosan; a polyamide; a polyetheramine; a polyethyleneimine; a polyhydroxyetheramine; a polylysine; a polysulfone; a gum; a starch, and a combination thereof.
摘要翻译： 使用包含亲水性化合物和亲水性聚合物的反应产物的水溶性相对渗透性调节剂降低地层对水性流体的渗透性的方法。 在一些方法中，亲水聚合物可选自：聚丙烯酰胺，聚乙烯胺，聚（乙烯胺/乙烯醇），丙烯酸烷基酯聚合物及其组合。 在其它方法中，亲水聚合物可以选自：聚乙烯胺; 聚（乙烯胺/乙烯醇）; 纤维素; 壳聚糖 聚酰胺; 聚醚胺 聚乙烯亚胺 聚羟基胺; 聚赖氨酸 聚砜; 口香糖 淀粉及其组合。
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90.发明申请公开(公告)号：US20130081821A1
公开(公告)日：2013-04-04
申请号：US13252327
申请日：2011-10-04
申请人： Feng Liang , Rajesh K. Saini , Bradley L. Todd
发明人： Feng Liang , Rajesh K. Saini , Bradley L. Todd
IPC分类号： E21B37/00 , C08L67/04 , C09D167/04 , B82Y99/00 , B82Y30/00
CPC分类号： C09K8/03 , C08J3/201 , C08J2367/04 , C08L101/16 , C09D167/04 , C09K8/50 , C09K8/516
摘要： The present invention relates to the use of composite material in downhole applications, and more particularly, relates to methods of making composite material comprising reinforced amorphous polylactic acid and methods of use related thereto. Some methods comprise providing an amorphous polylactic acid and a solid reinforcing material; forming a composite material by melting the amorphous polylactic acid and mixing it with the solid reinforcing material; and, using the composite material in a downhole application.
摘要翻译： 本发明涉及复合材料在井下应用中的应用，更具体地涉及制备包含增强的无定形聚乳酸的复合材料的方法及其相关使用方法。 一些方法包括提供无定形聚乳酸和固体增强材料; 通过熔化无定形聚乳酸并将其与固体增强材料混合而形成复合材料; 并且在井下应用中使用复合材料。
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