公开(公告)号：US07928040B2

公开(公告)日：2011-04-19

申请号：US11656872

申请日：2007-01-23

Applicant: Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

Inventor： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

IPC: E21B43/26 ,  C09K8/68

CPC classification number: C09K8/524 ,  C09K8/68 ,  C09K2208/26

Abstract: A composition for treating a portion of a wellbore or a portion of a subterranean formation is provided, the composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted to be within an appropriate range for the type of activator. A method for treating a portion of a wellbore or a portion of a subterranean formation, the method comprising the steps of: forming or providing a composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted within an appropriate range for the type of activator; and introducing the composition through a wellbore to treat a portion of a wellbore or a portion of a subterranean formation. The activator can be a water-soluble alkanoyl-donor compound or a chelated transition metal. Preferably, the composition further comprises an iron chelating agent. The composition and method are adapted for breaking a viscosity increasing polymer, such as xanthan. The method has particular applications where the static temperature of the portion of the wellbore or the portion of the subterranean formation to be treated is less than 100° F. (38° C.).

Abstract translation: 提供了一种用于处理一部分井孔或一部分地层的组合物，该组合物包含：（a）水; （b）过氧化氢源，和（c）用于过氧化氢源的活化剂; 其中将组合物的pH调节到活化剂类型的适当范围内。 一种用于处理井筒或地下地层的一部分的一部分的方法，所述方法包括以下步骤：形成或提供组合物，其包含：（a）水; （b）过氧化氢源，和（c）用于过氧化氢源的活化剂; 其中将组合物的pH调节到活化剂类型的适当范围内; 并通过井筒引入组合物以处理井筒或地下地层的一部分的一部分。 活化剂可以是水溶性烷酰基供体化合物或螯合过渡金属。 优选地，组合物还包含铁螯合剂。 该组合物和方法适用于破坏增粘聚合物如黄原胶。 该方法具有特定的应用，其中井眼部分或待处理的地下部分的静态温度小于100°F（38℃）。

公开(公告)号：US20110071056A1

公开(公告)日：2011-03-24

申请号：US12566258

申请日：2009-09-24

Applicant: Rajesh K Saini ,  Narongsak Tonmukayakul ,  Thomas D. Welton ,  Jason E. Bryant ,  Sherry G. Gaskins

Inventor： Rajesh K Saini ,  Narongsak Tonmukayakul ,  Thomas D. Welton ,  Jason E. Bryant ,  Sherry G. Gaskins

IPC: C09K8/035 ,  C09K8/70 ,  C09K8/62

CPC classification number: C09K8/602 ,  C09K8/035 ,  C09K8/62 ,  C09K8/70 ,  C09K8/94

Abstract: Methods and compositions are provided that include degradable gemini surfactants including degradable gemini surfactants. Methods of use include subterranean operations, especially those involving the placement of resin systems, formation of emulsions (e.g., emulsified acids, emulsified fracturing fluids, drilling fluids, etc.), and in the formation of surfactant gelled fluids. Such treatments include, but are not limited to, drilling, stimulation treatments (e.g., fracturing treatments, acidizing treatments), and completion operations (e.g., sand control treatments like gravel packing).

Abstract translation: 提供了包括可降解的双子表面活性剂包括可降解的双子表面活性剂的方法和组合物。 使用的方法包括地下操作，特别是那些涉及树脂体系的放置，乳液（例如乳化酸，乳化压裂液，钻井液等）的形成，以及表面活性剂凝胶流体的形成。 这样的处理包括但不限于钻井，刺激处理（例如，压裂处理，酸化处理）和完成操作（例如沙子处理如砂砾填充）。

公开(公告)号：US07825073B2

公开(公告)日：2010-11-02

申请号：US11891511

申请日：2007-08-10

Applicant: Thomas D. Welton ,  Michael W. Sanders ,  Jeffery L. Mundy ,  Sean R. Beach ,  Richard W. Pauls ,  Phillip C. Harris ,  Stanley J. Heath ,  David E. McMechan ,  Christina A. Parkinson ,  Harold G. Walters ,  Jason E. Bryant ,  Trinidad Munoz ,  Rajesh K. Saini ,  Bobby J. Burns

Inventor： Thomas D. Welton ,  Michael W. Sanders ,  Jeffery L. Mundy ,  Sean R. Beach ,  Richard W. Pauls ,  Phillip C. Harris ,  Stanley J. Heath ,  David E. McMechan ,  Christina A. Parkinson ,  Harold G. Walters ,  Jason E. Bryant ,  Trinidad Munoz ,  Rajesh K. Saini ,  Bobby J. Burns

IPC: C09K8/52 ,  C09K8/60 ,  E21B43/16 ,  E21B43/28

CPC classification number: C09K8/08 ,  C09K8/40 ,  C09K8/52 ,  C09K8/68 ,  C09K8/685 ,  C09K8/70 ,  C09K8/76 ,  C09K8/90

Abstract: Methods are provided that include a method comprising providing a viscosified treatment fluid comprising a base fluid and a gelling agent that comprises a clarified xanthan; and placing the viscosified treatment fluid into at least a portion of a subterranean formation. In some embodiments, the method comprises placing the viscosified treatment fluid into at least a portion of a subterranean formation at a pressure sufficient to create or enhance at least one fracture in the subterranean formation. In some embodiments, the viscosified treatment fluid may also comprise a plurality of particulates. In some embodiments, the viscosified treatment fluids may be placed into at least a portion of a pipeline. Additional methods are also provided.

Abstract translation: 提供了包括提供包含基础流体和包含澄清的黄原胶的胶凝剂的增稠处理流体的方法的方法， 以及将所述稠化处理流体放置在地下地层的至少一部分中。 在一些实施方案中，该方法包括将粘稠化处理流体置于足以产生或增强地下地层中的至少一个裂缝的压力下至少部分地下地层。 在一些实施方案中，稠化处理流体还可以包含多个颗粒。 在一些实施方案中，可以将稠化的处理流体放置在管道的至少一部分中。 还提供了附加的方法。

公开(公告)号：US07816305B2

公开(公告)日：2010-10-19

申请号：US12152536

申请日：2008-05-15

Applicant: Rajesh K. Saini ,  Narongsak Tonmukayakul

Inventor： Rajesh K. Saini ,  Narongsak Tonmukayakul

IPC: C09K8/524 ,  C09K8/60 ,  E21B43/26

CPC classification number: C09K8/584 ,  C09K8/602 ,  C09K8/70

Abstract: Certain reversible surfactants, treatment fluids, and methods of use employing such reversible surfactants in subterranean applications are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a reversible surfactant that comprises a hydrophobic portion and a nitrogen-containing functional group that is capable of reacting with carbon dioxide to form a salt; and introducing the treatment fluid into at least a portion of a subterranean formation.

Abstract translation: 提供了某些可逆表面活性剂，处理流体和在地下应用中使用这种可逆表面活性剂的使用方法。 在一个实施方案中，所述方法包括：提供包含基础流体和可逆表面活性剂的处理流体，所述可逆表面活性剂包含疏水部分和能够与二氧化碳反应形成盐的含氮官能团; 并将处理流体引入到地下地层的至少一部分中。

公开(公告)号：US20100071901A1

公开(公告)日：2010-03-25

申请号：US12284814

申请日：2008-09-25

Applicant: Hongyu Luo ,  Ashok Santra ,  Lewis R. Norman ,  Mark Parker ,  Ronald J. Powell ,  Rajesh K. Saini

Inventor： Hongyu Luo ,  Ashok Santra ,  Lewis R. Norman ,  Mark Parker ,  Ronald J. Powell ,  Rajesh K. Saini

IPC: E21B43/267 ,  C09K8/62

CPC classification number: C09K8/80 ,  Y10T428/2927 ,  Y10T428/2991

Abstract: A method of making a proppant is provided, wherein the method includes the steps of: (a) forming a particulate comprising: (i) a binder; and (ii) a filler; and (b) sintering the particulate to form a sintered proppant, wherein the sintered proppant comprises: (i) at least 20 wt % of alkaline earth oxide equivalent; and (ii) at least 20 wt % of silicon dioxide equivalent. A method of treating (e.g., fracturing) a subterranean formation is provided, the method including the steps of: (a) suspending a sintered proppant in a treatment fluid, wherein the sintered proppant comprises: (i) at least 20 wt % of alkaline earth oxide equivalent; and (ii) at least 20 wt % of silicon dioxide equivalent; and (b) introducing the sintered proppant into the subterranean formation (e.g., into a fracture). In addition, a sintered proppant is provided comprising: (i) at least 20 wt % of alkaline earth oxide equivalent; and (ii) at least 20 wt % of silicon dioxide equivalent. The sintered proppant is made with a raw material selected from the group consisting of: unhydrated cement, hydrated cement (e.g., construction cement or concrete waste), kiln dust, fly ash, limestone, lime, talc, olivine, dolomite, clay that contains a substantial concentration of alkaline earth oxide equivalent, and any combination thereof in any proportion.

Abstract translation: 提供一种制备支撑剂的方法，其中该方法包括以下步骤：（a）形成颗粒，包括：（i）粘合剂; 和（ii）填料; 和（b）烧结颗粒以形成烧结的支撑剂，其中烧结的支撑剂包括：（i）至少20重量％的碱土金属氧化物当量; 和（ii）至少20重量％的二氧化硅当量。 提供了处理（例如，压裂）地下地层的方法，该方法包括以下步骤：（a）将烧结的支撑剂悬浮在处理流体中，其中烧结的支撑剂包括：（i）至少20wt％的碱 地氧化物当量; 和（ii）至少20重量％的二氧化硅当量; 和（b）将烧结的支撑剂引入地层（例如，进入裂缝）。 此外，提供了烧结的支撑剂，其包含：（i）至少20wt％的碱土金属氧化物当量; 和（ii）至少20重量％的二氧化硅当量。 烧结的支撑剂由选自以下的原料制成：水合水泥，水合水泥（例如建筑水泥或混凝土废料），窑灰，飞灰，石灰石，石灰，滑石，橄榄石，白云石，含有 相当浓度的碱土金属氧化物当量，以及其任意组合。

公开(公告)号：US20080035342A1

公开(公告)日：2008-02-14

申请号：US11502285

申请日：2006-08-10

Applicant: Rajesh K. Saini ,  Bradley L. Todd ,  David E. McMechan ,  Thomas D. Welton ,  Richard W. Pauls

Inventor： Rajesh K. Saini ,  Bradley L. Todd ,  David E. McMechan ,  Thomas D. Welton ,  Richard W. Pauls

IPC: E21B43/22 ,  E21B43/27

CPC classification number: E21B43/26 ,  C09K8/72

Abstract: Methods of acidizing subterranean formations or well bores, and more specifically, to acidizing systems involving acid-generating fluids that comprise acid-generating compounds and associated methods are provided. An example of a method of the present invention comprises: providing an acid-generating fluid that comprises an acid-generating compound; placing the acid-generating fluid into a well bore penetrating a subterranean formation; and allowing the acid-generating compound to produce an acid that then acidizes at least a portion of the subterranean formation or damage contained in the formation or well bore.

Abstract translation: 提供酸化地下地层或井眼的方法，更具体地说，涉及包含酸产生化合物和相关方法的产酸流体的酸化体系。 本发明的方法的一个实例包括：提供包含产酸化合物的产酸流体; 将产酸流体置于贯穿地下地层的井眼中; 并且允许产酸化合物产生一种酸，然后酸化至少一部分地层或包含在地层或井眼中的损伤。

公开(公告)号：US09018147B2

公开(公告)日：2015-04-28

申请号：US13418084

申请日：2012-03-12

Applicant: Hongyu Luo ,  Lewis R. Norman ,  Ronald J. Powell ,  Rajesh K. Saini ,  Ashok K. Santra ,  Craig W. Roddy

Inventor： Hongyu Luo ,  Lewis R. Norman ,  Ronald J. Powell ,  Rajesh K. Saini ,  Ashok K. Santra ,  Craig W. Roddy

IPC: C09K8/42 ,  E21B43/267 ,  C04B18/02 ,  C09K8/46 ,  C09K8/66 ,  C09K8/80 ,  C04B111/00

CPC classification number: C04B18/021 ,  C04B2111/00146 ,  C09K8/46 ,  C09K8/665 ,  C09K8/80 ,  C09K8/805 ,  Y02W30/94 ,  Y02W30/97 ,  C04B14/042 ,  C04B14/047 ,  C04B14/06 ,  C04B14/10 ,  C04B14/24 ,  C04B14/303 ,  C04B14/386 ,  C04B14/42 ,  C04B18/141 ,  C04B18/24 ,  C04B18/023 ,  C04B20/1029

Abstract: Methods of making particulates for use in a subterranean application comprising: providing particulates of a settable composition comprising a cementitious material, a filler material, and an activator of the cementitious material; and pre-curing the particulates until the particulates reach a crush strength of about 50 psi or greater; and curing the pre-cured particulates at a temperature in the range of about 230° F. to about 600° F., so that at least a portion of the particulates comprise a newly formed crystalline phase.

公开(公告)号：US08975217B2

公开(公告)日：2015-03-10

申请号：US12490099

申请日：2009-06-23

Applicant: B. Raghava Reddy ,  Rajesh K. Saini ,  Sherry G. Gaskins

Inventor： B. Raghava Reddy ,  Rajesh K. Saini ,  Sherry G. Gaskins

IPC: C09K8/60 ,  C09K8/68 ,  C09K8/72 ,  C09K8/528 ,  E21B33/13 ,  C09K8/70 ,  C09K8/88 ,  C09K8/92

CPC classification number: C09K8/706 ,  C09K8/685 ,  C09K8/887 ,  C09K8/92 ,  C09K2208/26

Abstract: Methods are provided for treating a portion of a well. The method according to this aspect comprises the steps of: (A) forming a treatment fluid, the treatment fluid comprising: (i) water; (ii) a water-soluble polymer; (iii) a complexed metal cation that: (a) has a valence state of at least three; and (b) is capable of cross-linking the water-soluble polymer; and (iv) an aromatic compound that is capable of dissolving, melting, or chemically decomposing, dissociating, or reacting, to form a chelating agent, wherein the chelating agent comprising vicinal substituents containing donor heteroatoms, and wherein the chelating agent is capable of chelating the metal cation; and (B) introducing the treatment fluid into the well.

Abstract translation: 提供了处理井的一部分的方法。 根据该方面的方法包括以下步骤：（A）形成处理流体，所述处理流体包括：（i）水; （ii）水溶性聚合物; （iii）络合的金属阳离子：（a）具有至少三价的价态; 和（b）能够交联水溶性聚合物; 和（iv）能够溶解，熔融或化学分解，解离或反应形成螯合剂的芳族化合物，其中所述螯合剂包含含有供体杂原子的连位取代基，并且其中所述螯合剂能够螯合 金属阳离子; 和（B）将处理流体引入井中。

公开(公告)号：US08545935B2

公开(公告)日：2013-10-01

申请号：US13435400

申请日：2012-03-30

Applicant: Rajesh K. Saini ,  Bradley L. Todd

Inventor： Rajesh K. Saini ,  Bradley L. Todd

IPC: B05D7/00

CPC classification number: C09K8/536 ,  C09K8/706 ,  C09K8/72 ,  C09K8/805 ,  E21B43/04

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08450252B2

公开(公告)日：2013-05-28

申请号：US13456839

申请日：2012-04-26

Applicant: Gary P. Funkhouser ,  Rajesh K. Saini ,  Arnab Mukherjee

Inventor： Gary P. Funkhouser ,  Rajesh K. Saini ,  Arnab Mukherjee

IPC: C09K8/588

CPC classification number: C09K8/685 ,  C09K8/5756

Abstract: Subterranean treatment fluids comprising: an aqueous base fluid and a reaction product of a gelling agent comprising a copolymer or salt thereof comprising N-[tris(hydroxymethyl)methyl]acrylamide, 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, acrylamide; and a crosslinking agent. Such treatment fluids are particularly well-suited for high temperature applications. In particular, they are suited for subterranean temperatures up to about 400° F.

Abstract translation: 地下处理流体包括：碱性水溶液和由包含N- [三（羟甲基）甲基]丙烯酰胺，2-丙烯酰胺基-2-甲基丙磺酸或其盐的共聚物或其盐的胶凝剂的反应产物，丙烯酰胺; 和交联剂。 这种处理流体特别适用于高温应用。 特别地，它们适用于高达约400°F的地下温度。