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61.发明授权公开(公告)号：US09023770B2
公开(公告)日：2015-05-05
申请号：US13017745
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： C09K8/528 , C09K8/68 , E21B43/26 , C09K8/03 , C04B28/02 , C09K8/42 , C09K8/467 , C09K8/516 , C09K8/536 , E21B43/267 , C04B103/00
CPC分类号： C09K8/03 , C04B28/02 , C04B2103/0045 , C09K8/42 , C09K8/467 , C09K8/516 , C09K8/536 , C09K8/685 , C09K2208/18 , E21B43/267 , Y10S507/922 , Y10S507/924 , C04B24/003 , C04B24/06 , C04B24/123
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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公开(公告)号：US08985213B2
公开(公告)日：2015-03-24
申请号：US13565303
申请日：2012-08-02
申请人： Rajesh Kumar Saini , Bradley L. Todd , Jimmie D. Weaver , James W. Ogle , David Michael Loveless , Philip Nguyen
发明人： Rajesh Kumar Saini , Bradley L. Todd , Jimmie D. Weaver , James W. Ogle , David Michael Loveless , Philip Nguyen
IPC分类号： E21B43/267 , E21B43/26
CPC分类号： E21B43/267
摘要： A subterranean zone surrounding a well bore is fractured with a fracturing fluid. Micro proppant of 200 mesh or smaller is pumped into far field fractures of the subterranean zone and props the far field fractures open.
摘要翻译： 围绕井眼的地下区域用压裂液断裂。 200目或更小的微型支撑剂被泵入地下区域的远场裂缝，并支持远场断裂。
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63.发明授权Compositions and methods relating to establishing circulation in stand-alone-screens without using washpipes 有权关于在不使用洗手盆的情况下在独立屏幕中建立循环的组合和方法公开(公告)号：US08646528B2
公开(公告)日：2014-02-11
申请号：US12970245
申请日：2010-12-16
申请人： Bradley L. Todd
发明人： Bradley L. Todd
摘要： Of the methods provided herein, one example of a method that is disclosed includes the steps of placing a stand-alone-screen that does not comprise a concentric washpipe in a well bore, and forming an in situ coated stand-alone-screen in the well bore by placing a screen-plugging filter cake on the interior surface of the stand-alone-screen, the screen-plugging filter cake comprising particulate plugging agents deposited by a packing slurry.
摘要翻译： 在本文提供的方法中，所公开的方法的一个实例包括以下步骤：将不包括同心冲洗管的独立筛管放置在井眼中，并且在所述孔中形成原位涂覆的独立筛网 通过在独立筛网的内表面上放置筛网滤饼，筛孔滤饼包括通过包装浆料沉积的颗粒状堵塞剂。
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64.发明申请Degradable Fluid Sealing Compositions Having an Adjustable Degradation Rate and Methods for Use Thereof 审中-公开可降解流体密封组合物具有可调节的降解速率及其使用方法公开(公告)号：US20130233546A1
公开(公告)日：2013-09-12
申请号：US13414269
申请日：2012-03-07
申请人： Feng Liang , Rajesh K. Saini , Bradley L. Todd , Stanley J. Heath
发明人： Feng Liang , Rajesh K. Saini , Bradley L. Todd , Stanley J. Heath
IPC分类号： E21B33/00
摘要： When performing subterranean treatment operations, it can be desirable to temporarily divert or block fluid flow by forming a degradable fluid seal. Methods for forming a degradable fluid seal can comprise: providing a sealing composition comprising: a degradable polymer, and a water-soluble material comprising a first portion and a second portion of rigid particulates, each portion having a sealing time and a particulate size distribution associated therewith, the particulate size distributions of the first portion and the second portion differing from one another; determining an amount of the first portion relative to the second portion needed to produce a degradable fluid seal having a desired sealing time that is different than that of the sealing time of either the first portion or the second portion; introducing the sealing composition into a subterranean formation; and allowing the sealing composition to form a degradable fluid seal in the subterranean formation.
摘要翻译： 当进行地下处理操作时，可以期望通过形成可降解流体密封来临时转移或阻止流体流动。 用于形成可降解流体密封件的方法可以包括：提供密封组合物，其包含：可降解聚合物和包含刚性颗粒的第一部分和第二部分的水溶性材料，每个部分具有密封时间和相关的颗粒尺寸分布 由此，第一部分和第二部分的颗粒尺寸分布彼此不同; 确定产生具有与第一部分或第二部分的密封时间不同的期望密封时间的可降解流体密封件所需的相对于第二部分的第一部分的量; 将密封组合物引入地层; 并且允许密封组合物在地层中形成可降解的流体密封。
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65.发明申请公开(公告)号：US20130133887A1
公开(公告)日：2013-05-30
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： E21B43/26
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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66.发明申请公开(公告)号：US20130025860A1
公开(公告)日：2013-01-31
申请号：US13190509
申请日：2011-07-26
申请人： Ian D. Robb , Feng Liang , Bradley L. Todd
发明人： Ian D. Robb , Feng Liang , Bradley L. Todd
摘要： Composite particulates for use in high permeability subterranean formations may contain, at least, a gel particulate having a solid particulate incorporated. Some methods of using the diverting agent may include introducing a treatment fluid comprising a base fluid and a diverting agent into at least a portion of a subterranean formation and allowing the diverting agent to bridge fractures, provide fluid loss control, seal the rock surfaces for fluid diversion, or plug an area along the annulus of a wellbore.
摘要翻译： 用于高渗透性地下地层的复合颗粒可以至少包含结合了固体颗粒的凝胶颗粒。 使用转移剂的一些方法可以包括将包含基础流体和转移剂的处理流体引入至地下地层的至少一部分，并允许转移剂桥接裂缝，提供流体损失控制，将流体的岩石表面密封 转移或堵塞沿井筒环面的区域。
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67.发明申请公开(公告)号：US20120189771A1
公开(公告)日：2012-07-26
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： B05D1/18
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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68.发明申请Increasing Fracture Complexity in Ultra-Low Permeable Subterranean Formation Using Degradable Particulate 有权使用可降解颗粒增加超低渗透地层形成中的断裂复杂性公开(公告)号：US20120024530A1
公开(公告)日：2012-02-02
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： E21B43/26
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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公开(公告)号：US08091638B2
公开(公告)日：2012-01-10
申请号：US11360215
申请日：2006-02-22
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 controlling fluid loss in a subterranean formation comprising: providing a treatment fluid comprising an aqueous fluid and a fluid loss control additive comprising a water-soluble polymer having hydrophobic or hydrophilic modification; introducing the treatment fluid into an interval of a well bore, the well bore penetrating the subterranean formation; creating one or more perforations in the interval of the well bore, wherein the perforations extend from the well bore and into the subterranean formation; and allowing the treatment fluid to contact a portion of the subterranean formation through the one or more perforations. Methods of a reducing fluid loss from a perforated and/or gravel packed interval of a well bore using a fluid loss control additive comprising a water-soluble polymer having hydrophobic or hydrophilic modification.
摘要翻译： 控制地下地层中的流体损失的方法，包括：提供包含水性流体的处理流体和包含具有疏水或亲水改性的水溶性聚合物的流体损失控制添加剂; 将处理流体引入井眼的间隔中，井眼穿透地层; 在所述井眼的间隔中产生一个或多个穿孔，其中所述穿孔从所述井眼延伸并进入所述地下地层; 并且允许处理流体通过一个或多个穿孔接触地下地层的一部分。 使用包含具有疏水性或亲水性改性的水溶性聚合物的流体损失控制添加剂从孔的穿孔和/或砾石填充间隔减少流体损失的方法。
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70.发明授权Methods of setting particulate plugs in horizontal well bores using low-rate slurries 有权使用低速浆料在水平井眼中设置颗粒塞的方法公开(公告)号：US08074715B2
公开(公告)日：2011-12-13
申请号：US12354551
申请日：2009-01-15
申请人： Keith A. Rispler , Loyd E. East , Bradley L. Todd , David E. McMechan , Corine McMechan, legal representative
IPC分类号： E21B33/12 , E21B33/134
CPC分类号： E21B33/134 , E21B33/1208
摘要： Methods for setting particulate plugs in at least partially horizontal sections of well bores are disclosed. In one embodiment, a method comprises the step of selecting a deposition location for a particulate plug within the at least partially horizontal section of the well bore. The method further comprises the step of providing a pumping conduit capable of delivering slurries to the deposition location. The method further comprises the step of pumping a first slurry through the pumping conduit to the deposition location such that a velocity of the first slurry in the well bore at the deposition location is less than or equal to the critical velocity of the first slurry in the well bore at the deposition location.
摘要翻译： 公开了在井眼的至少部分水平部分中设置颗粒塞的方法。 在一个实施例中，一种方法包括为井筒的至少部分水平部分内的颗粒塞选择沉积位置的步骤。 该方法还包括提供能够将浆料输送到沉积位置的泵送导管的步骤。 该方法还包括将第一浆料泵送到沉积位置的步骤，使得在沉积位置的井眼中的第一浆料的速度小于或等于第一浆料在第二浆料的临界速度 在沉积位置钻孔。
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