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    Cement compositions comprising aromatic sulfonated polymers and methods of using the same
    2.
    发明申请
    Cement compositions comprising aromatic sulfonated polymers and methods of using the same 有权
    包含芳族磺化聚合物的水泥组合物及其使用方法

    公开(公告)号：US20060081373A1

    公开(公告)日：2006-04-20

    申请号：US10966937

    申请日：2004-10-15

    Applicant: Ashok Santra ,  B. Reddy ,  Russell Fitzgerald

    Inventor： Ashok Santra ,  B. Reddy ,  Russell Fitzgerald

    IPC: E21B33/138

    CPC classification number: C04B28/02 ,  C04B24/163 ,  C09K8/493

    Abstract: A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.

    Abstract translation: 维护渗透地下地层的井筒的方法包括将包含芳族磺化聚合物的水泥组合物置于井眼中并使水泥组合物凝固。 在一个实施方案中，水泥组合物的过渡时间小于或等于约60分钟，或者小于或等于约50分钟，小于或等于约40分钟，小于或等于约30分钟，更少 大于或等于约20分钟，或小于或等于约10分钟。 因此，过渡时间可能足够短以在其组合之前抑制大量气体迁移到水泥组合物中。 在另一个实施方案中，当水泥组合物组合时，水泥组合物表现出在大约10分钟或更短时间内从35Bc（Bearden单元）的值增加到约100Bc的粘度。

    Methods of generating a gas in a plugging composition to improve its sealing ability in a downhole permeable zone
    3.
    发明申请
    Methods of generating a gas in a plugging composition to improve its sealing ability in a downhole permeable zone 有权
    在封堵组合物中产生气体以提高其在井下渗透区域中的密封能力的方法

    公开(公告)号：US20060084580A1

    公开(公告)日：2006-04-20

    申请号：US10967121

    申请日：2004-10-18

    Applicant: Ashok Santra ,  B. Reddy ,  Frank Zamora ,  Giddo Antonio Gomez ,  Ronnie Morgan ,  Mark Savery

    Inventor： Ashok Santra ,  B. Reddy ,  Frank Zamora ,  Giddo Antonio Gomez ,  Ronnie Morgan ,  Mark Savery

    IPC: E21B43/00 ,  E21B33/00

    CPC classification number: C09K8/516 ,  E21B33/138

    Abstract: Methods of servicing a wellbore include generating gas in a plugging composition in situ within a permeable zone in the wellbore, thereby improving the ability of the plugging composition to seal the permeable zone. The gas may be generated via a chemical reaction by, for example, introducing first and second reactants to the plugging composition that can react at ambient temperatures in the wellbore. In an embodiment, the first and second reactants are concurrently pumped into the wellbore via separate flow paths within two concentric conduits to the permeable zone where they are allowed to contact each other in the presence of the plugging composition. In another embodiment, the first reactant, the second reactant, and a retarder for slowing the reaction between the two reactants are concurrently pumped to the permeable zone. In yet another embodiment, one of the reactants is encapsulated to delay a reaction between the two reactants.

    Abstract translation: 维护井筒的方法包括在井筒内的可渗透区域内原位生成堵塞组合物中的气体，从而提高堵塞组合物密封可渗透区域的能力。 可以通过例如将第一和第二反应物引入到可在井眼中的环境温度下反应的堵塞组合物的化学反应来产生气体。 在一个实施方案中，第一和第二反应物同时通过在渗透区域的两个同心管道内的分离的流动路径泵送到井筒中，在渗透区域允许它们在堵塞组合物的存在下彼此接触。 在另一个实施方案中，用于减缓两种反应物之间的反应的第一反应物，第二反应物和延迟剂同时泵送到可渗透区域。 在另一个实施方案中，一种反应物被包封以延迟两种反应物之间的反应。

    CEMENT COMPOSITIONS FOR REDUCING GAS OR WATER MIGRATION AND METHODS OF USING THE SAME
    7.
    发明申请
    CEMENT COMPOSITIONS FOR REDUCING GAS OR WATER MIGRATION AND METHODS OF USING THE SAME 失效
    用于减少气体或水的迁移的水泥组合物及其使用方法

    公开(公告)号：US20080070814A1

    公开(公告)日：2008-03-20

    申请号：US11947454

    申请日：2007-11-29

    Applicant: Ashok Santra ,  Mfon Antia ,  B. Reddy

    Inventor： Ashok Santra ,  Mfon Antia ,  B. Reddy

    IPC: C09K8/74

    CPC classification number: C04B24/20 ,  C04B28/02 ,  C09K8/467 ,  C04B2103/50 ,  C04B24/163

    Abstract: A method of cementing a wellbore comprising preparing a cement composition comprising a water-soluble aromatic sulfonated polymer, and placing the cement composition into the wellbore, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having a comparable thickening time and lacking a water-soluble aromatic sulfonated polymer. A cement composition comprising a water-soluble aromatic sulfonated polymer, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having comparable thickening time and lacking a water-soluble aromatic sulfonated polymer.

    Abstract translation: 一种固井井的方法，包括制备包含水溶性芳族磺化聚合物的水泥组合物，并将该水泥组合物置于井筒中，其中该水泥组合物在比相似的水泥组合物更短的时间内产生大于约零的抗压强度 具有可比较的增稠时间和缺乏水溶性芳香族磺化聚合物。 一种水泥组合物，其包含水溶性芳族磺化聚合物，其中所述水泥组合物在比具有相当的增稠时间和不含水溶性芳族磺化聚合物的类似水泥组合物的时间内在较短的时间内产生大于约零的压缩强度。

    Cement compositions comprising aromatic sulfonated polymers and methods of using the same
    8.
    发明申请
    Cement compositions comprising aromatic sulfonated polymers and methods of using the same 有权

    公开(公告)号：US20080011202A1

    公开(公告)日：2008-01-17

    申请号：US11780192

    申请日：2007-07-19

    Applicant: Ashok Santra ,  B. Reddy ,  Russell Fitzgerald

    Inventor： Ashok Santra ,  B. Reddy ,  Russell Fitzgerald

    IPC: C04B7/00

    CPC classification number: C04B28/02 ,  C04B24/163 ,  C09K8/493

    Abstract: A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.

    Cement compositions for reducing gas or water migration and methods of using the same
    9.
    发明申请
    Cement compositions for reducing gas or water migration and methods of using the same 失效
    用于还原气体或水迁移的水泥组合物及其使用方法

    公开(公告)号：US20070209796A1

    公开(公告)日：2007-09-13

    申请号：US11372001

    申请日：2006-03-09

    Applicant: Ashok Santra ,  Mfon Antia ,  B. Reddy

    Inventor： Ashok Santra ,  Mfon Antia ,  B. Reddy

    IPC: E21B33/13

    CPC classification number: C04B24/20 ,  C04B28/02 ,  C09K8/467 ,  C04B2103/50 ,  C04B24/163

    Abstract: A method of cementing a wellbore comprising preparing a cement composition comprising a water-soluble aromatic sulfonated polymer, and placing the cement composition into the wellbore, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having a comparable thickening time and lacking a water-soluble aromatic sulfonated polymer. A cement composition comprising a water-soluble aromatic sulfonated polymer, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having comparable thickening time and lacking a water-soluble aromatic sulfonated polymer.

    Abstract translation: 一种固井井的方法，包括制备包含水溶性芳族磺化聚合物的水泥组合物，并将该水泥组合物置于井筒中，其中该水泥组合物在比相似的水泥组合物更短的时间内产生大于约零的抗压强度 具有可比较的增稠时间和缺乏水溶性芳香族磺化聚合物。 一种水泥组合物，其包含水溶性芳族磺化聚合物，其中所述水泥组合物在比具有相当的增稠时间和不含水溶性芳族磺化聚合物的类似水泥组合物的时间内在较短的时间内产生大于约零的压缩强度。

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