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    Cement composition containing a substituted ethoxylated phenol surfactant for use in an oil-contaminated well
    1.
    发明授权
    Cement composition containing a substituted ethoxylated phenol surfactant for use in an oil-contaminated well 失效
    含有用于油污井的取代的乙氧基化苯酚表面活性剂的水泥组合物

    公开(公告)号：US08360150B2

    公开(公告)日：2013-01-29

    申请号：US12844577

    申请日：2010-07-27

    申请人： Abhijit Tarafdar ,  Trissa Joseph ,  Vineet Vasant Sathe

    发明人： Abhijit Tarafdar ,  Trissa Joseph ,  Vineet Vasant Sathe

    IPC分类号： E21B33/13

    CPC分类号： C09K8/46 ,  C04B24/32 ,  C04B28/04 ,  C04B2103/0028 ,  C04B2103/406 ,  C09K8/467 ,  C04B22/002 ,  C04B2103/12 ,  C04B2103/22 ,  C04B2103/46 ,  C04B2103/50

    摘要： A well treatment composition comprises a surfactant comprising a substituted ethoxylated phenol having at least one substituent, 1 to 14 moles of ethylene oxide, and the substituent being an alkyl, alkene, or alkyne with a carbon chain length in the range of 4 to 25, wherein the substituted ethoxylated phenol is selected from the group consisting of: ortho-, para-, or meta-substituted ethoxylated phenol; cardanol ethoxylate; derivatives thereof; and combinations of any of the foregoing. Preferably, the surfactant comprises cardanol ethoxylate, a substituted cardanol ethoxylate, and derivatives thereof. A method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, wherein the cement composition comprises: (A) cement; (B) water; and (C) the surfactant; and allowing the cement composition to set.

    摘要翻译： 井处理组合物包含含有至少一个取代基的取代的乙氧基化苯酚，1至14摩尔环氧乙烷的表面活性剂，并且所述取代基是碳链长度在4至25范围内的烷基，烯烃或炔烃， 其中取代的乙氧基化苯酚选自：邻 - ，对 - 或间 - 取代的乙氧基化苯酚; 腰果酚乙氧基化物; 衍生物 以及任何前述的组合。 优选地，表面活性剂包括乙烯基腰果酚，取代的羟乙基纤维素及其衍生物。 一种在地层中固井的方法包括：将水泥组合物引入地层，其中所述水泥组合物包括：（A）水泥; （B）水; 和（C）表面活性剂; 并允许水泥组合物固化。

    Fluid loss additive containing a biodegradable grafted copolymer for a cement composition
    3.
    发明授权
    Fluid loss additive containing a biodegradable grafted copolymer for a cement composition 有权
    含有用于水泥组合物的可生物降解的接枝共聚物的流体损失添加剂

    公开(公告)号：US08376045B2

    公开(公告)日：2013-02-19

    申请号：US12817415

    申请日：2010-06-17

    申请人： Girish Dinkar Sarap ,  Abhijit Tarafdar ,  Remitha Ak

    发明人： Girish Dinkar Sarap ,  Abhijit Tarafdar ,  Remitha Ak

    IPC分类号： E21B33/138

    CPC分类号： C09K8/487 ,  C04B28/02 ,  C04B24/18 ,  C04B24/38 ,  C04B2103/0059 ,  C04B2103/0072 ,  C04B2103/46 ,  C04B24/2652 ,  C04B24/287 ,  C04B24/2623 ,  C04B24/2641

    摘要： A fluid loss additive comprises a biodegradable grafted copolymer, wherein the copolymer comprises: (i) a first polymer comprising a monomer or monomers selected from the group consisting of acrylamido-2-methylpropane sulfonic acid, N-N dimethyl acrylamide, N-vinyl-N-methylaceamide, N-vinylformamide, N-vinylpyrrolidone, acrylonitrile, acrylamide, acrylomorpholine, vinyl alcohol, maleic anhydride, acrylic acid, and any combination thereof; and (ii) a second polymer, wherein the first polymer is grafted onto the second polymer. A method of cementing in a low-temperature subterranean formation comprises: introducing a cement composition into the subterranean formation comprising: (i) cement; (ii) water; and (iii) the fluid loss additive; and allowing the cement composition to set. According to another embodiment, a method of cementing in a high-temperature subterranean formation comprises: introducing a cement composition into the subterranean formation comprising: (i) cement; (ii) water; (iii) a clay; and (iv) the fluid loss additive; and allowing the cement composition to set.

    摘要翻译： 一种流体损失添加剂包括可生物降解的接枝共聚物，其中共聚物包括：（i）第一聚合物，其包含选自丙烯酰胺基-2-甲基丙磺酸，N，N-二甲基丙烯酰胺，N-乙烯基-N- 甲基酰胺，N-乙烯基甲酰胺，N-乙烯基吡咯烷酮，丙烯腈，丙烯酰胺，丙烯酰吗啉，乙烯醇，马来酸酐，丙烯酸及其任意组合; 和（ii）第二聚合物，其中第一聚合物接枝到第二聚合物上。 在低温地下地层中固井的方法包括：将水泥组合物引入地层中，包括：（i）水泥; （ii）水; 和（iii）流体损失添加剂; 并允许水泥组合物固化。 根据另一个实施方案，一种在高温地下地层中固井的方法包括：将水泥组合物引入所述地层中，包括：（i）水泥; （ii）水; （iii）粘土; 和（iv）流体损失添加剂; 并允许水泥组合物固化。

    Expoxy Acid Based Biodegradable Set Retarder
    7.
    发明申请
    Expoxy Acid Based Biodegradable Set Retarder 失效
    基于超氧酸的生物降解型阻燃剂

    公开(公告)号：US20120196954A1

    公开(公告)日：2012-08-02

    申请号：US13433560

    申请日：2012-03-29

    申请人： Abhijit Tarafdar ,  Dibyadarshani Senapati ,  Girish Dinkar Sarap ,  Rahul Chandrakant Patil

    发明人： Abhijit Tarafdar ,  Dibyadarshani Senapati ,  Girish Dinkar Sarap ,  Rahul Chandrakant Patil

    IPC分类号： C09K8/467

    CPC分类号： C09K8/467 ,  C04B24/281 ,  C04B28/02 ,  C04B2103/0046 ,  C04B2103/22 ,  Y02W30/92 ,  C04B14/10 ,  C04B14/108 ,  C04B18/08 ,  C04B2103/0085 ,  C04B2103/10 ,  C04B2103/40 ,  C04B2103/42 ,  C04B2103/46 ,  C04B2103/50

    摘要： A cement composition or method of using the cement composition in a subterranean formation, the composition having: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) comprises a monomer or monomers selected from the group consisting of epoxysuccinic acid, a substituted epoxysuccinic acid, and an alkali metal salt, alkaline earth metal salt, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition at a temperature of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition at a temperature of 217° F. and a pressure of 3,000 psi.

    摘要翻译： 一种在地层中使用该水泥组合物的水泥组合物或方法，该组合物具有：（A）水泥; （B）水; 和（C）聚合物，其中所述聚合物：（i）包含选自环氧琥珀酸，取代的环氧琥珀酸和碱金属盐，碱土金属盐或铵盐中的任何一种的单体或单体 前述内容，以及任何前述内容的任何组合; （ii）具有以下特征：（a）是水溶性的; 和（b）是可生物降解的; 和（iii）能够提供：（a）在190°F的温度和5,160psi的压力下对于测试组合物的至少2小时的增稠时间; 和（b）测试组合物在217°F的温度和3,000psi的压力下的初始凝固时间小于24小时。

    EPOXY ACID BASED BIODEGRADABLE SET RETARDER FOR A CEMENT COMPOSITION
    8.
    发明申请
    EPOXY ACID BASED BIODEGRADABLE SET RETARDER FOR A CEMENT COMPOSITION 有权
    用于水泥组合物的基于环氧基的生物可降解组合物

    公开(公告)号：US20110203796A1

    公开(公告)日：2011-08-25

    申请号：US12711945

    申请日：2010-02-24

    申请人： Abhijit Tarafdar ,  Dibyadarshani Senapati ,  Girish Dinkar Sarap ,  Rahul Chandrakant Patil

    发明人： Abhijit Tarafdar ,  Dibyadarshani Senapati ,  Girish Dinkar Sarap ,  Rahul Chandrakant Patil

    IPC分类号： E21B33/13 ,  C09K8/42

    CPC分类号： C09K8/467 ,  C04B24/281 ,  C04B28/02 ,  C04B2103/0046 ,  C04B2103/22 ,  Y02W30/92 ,  C04B14/10 ,  C04B14/108 ,  C04B18/08 ,  C04B2103/0085 ,  C04B2103/10 ,  C04B2103/40 ,  C04B2103/42 ,  C04B2103/46 ,  C04B2103/50

    摘要： Compositions and methods according to the invention are directed to a cement composition for use in a subterranean formation. The cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) comprises a monomer or monomers selected from the group consisting of epoxysuccinic acid, a substituted epoxysuccinic acid, and an alkali metal salt, alkaline earth metal salt, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition at a temperature of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition at a temperature of 217° F. and a pressure of 3,000 psi, wherein the test composition consists of 860 grams of Class-H Portland cement, 325 grams of deionized water, and 0.4% by weight of the cement of the polymer. The method comprises the steps of: (A) introducing the cement composition into the subterranean formation; and (B) allowing the cement composition to set after introduction into the subterranean formation.

    摘要翻译： 根据本发明的组合物和方法涉及用于地下地层的水泥组合物。 水泥组合物包括：（A）水泥; （B）水; 和（C）聚合物，其中所述聚合物：（i）包含选自环氧琥珀酸，取代的环氧琥珀酸和碱金属盐，碱土金属盐或铵盐中的任何一种的单体或单体 前述内容，以及任何前述内容的任何组合; （ii）具有以下特征：（a）是水溶性的; 和（b）是可生物降解的; 和（iii）能够提供：（a）在190°F的温度和5,160psi的压力下对于测试组合物的至少2小时的增稠时间; 和（b）测试组合物在217°F的温度和3,000psi的压力下的初始凝固时间小于24小时，其中测试组合物由860克H类波特兰水泥，325克 去离子水和0.4重量％的聚合物的水泥。 该方法包括以下步骤：（A）将水泥组合物引入地层; 和（B）允许水泥组合物在引入地层之后凝固。

    Biodegradable set retarder for a cement composition
    10.
    发明授权
    Biodegradable set retarder for a cement composition 有权
    用于水泥组合物的可生物降解的阻滞剂

    公开(公告)号：US08869895B2

    公开(公告)日：2014-10-28

    申请号：US12633507

    申请日：2009-12-08

    申请人： Girish Dinkar Sarap ,  Sandip Prabhakar Patil ,  Dibyadarshani Senapati ,  Abhijit Tarafdar

    发明人： Girish Dinkar Sarap ,  Sandip Prabhakar Patil ,  Dibyadarshani Senapati ,  Abhijit Tarafdar

    IPC分类号： E21B33/13 ,  C09K8/00 ,  C04B14/00

    CPC分类号： C04B24/2641 ,  C04B24/2652 ,  C04B24/2664 ,  C04B24/383 ,  C04B28/02 ,  C04B2103/0046 ,  C04B2103/0053 ,  C04B2103/006 ,  C04B2103/22 ,  C09K8/428 ,  C09K8/467 ,  C04B22/0026

    摘要： Compositions and methods are directed to a cement composition for use in a subterranean formation. In an embodiment the cement composition comprises: (A) cement; (B) water; and (C) a polymer, wherein the polymer: (i) consists essentially of a monomer or monomers selected from the group consisting of acrylic acid, esters of acrylic acid, maleic acid, methacrylic acid, esters of methacrylic acid, itaconic acid, fumeric acid, citraconic acid, mesoconic acid, and any alkali metal, alkaline earth metal, or ammonium salt of any of the foregoing, and any combination of any of the foregoing; (ii) has the following characteristics: (a) is water soluble; and (b) is biodegradable; and (iii) is capable of providing: (a) a thickening time of at least 2 hours for a test composition maintained under a temperature condition of 190° F. and a pressure of 5,160 psi; and (b) an initial setting time of less than 24 hours for the test composition maintained under a temperature condition of 217° F. and a pressure of 3,000 psi, wherein the test composition consists of 860 grams of Class-H Portland cement, 325 grams of deionized water, and 0.4% by weight of the cement of the polymer. In another embodiment the method comprises the steps of: (A) introducing the cement composition into the subterranean formation; and (B) allowing the cement composition to set after introduction into the subterranean formation.

    摘要翻译： 组合物和方法涉及用于地下地层的水泥组合物。 在一个实施方案中，水泥组合物包含：（A）水泥; （B）水; 和（C）聚合物，其中聚合物：（i）基本上由选自丙烯酸，丙烯酸的酯，马来酸，甲基丙烯酸，甲基丙烯酸的酯，衣康酸，数字的单体或单体组成 酸，柠康酸，中糖酸，以及任何上述任何一种的碱金属，碱土金属或铵盐，以及任何前述的任何组合; （ii）具有以下特征：（a）是水溶性的; 和（b）是可生物降解的; 和（iii）能够提供：（a）在190°F的温度条件和5,160psi的压力下保持的测试组合物的至少2小时的增稠时间; 和（b）在217°F的温度条件下保持的测试组合物的初始凝固时间小于24小时，并且压力为3,000psi，其中测试组合物由860克H类波特兰水泥，325 克的去离子水和0.4重量％的聚合物的水泥。 在另一个实施方案中，该方法包括以下步骤：（A）将水泥组合物引入地层; 和（B）允许水泥组合物在引入地层之后凝固。