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    COMPOSITIONS AND METHODS FOR TREATING SUBTERRANEAN FORMATIONS
    1.
    发明申请
    COMPOSITIONS AND METHODS FOR TREATING SUBTERRANEAN FORMATIONS 审中-公开

    公开(公告)号：US20190225876A1

    公开(公告)日：2019-07-25

    申请号：US16373126

    申请日：2019-04-02

    Applicant: Schlumberger Technology Corporation

    Inventor： Li Jiang ,  Bruno Lecerf ,  Connor Coley ,  Philip Sullivan ,  Brent Busby ,  Jeremy Bedard

    IPC: C09K8/72 ,  C09K8/74

    Abstract: Methods for treating subterranean wells in which the producing formation is a carbonate comprise preparing a treatment fluid comprising either: (a) an aqueous solution of a multivalent-cation reacting polymer; (b) a solution comprising a fatty acid and an ethanolamine; (c) an aqueous acidic solution of one or more compounds whose calcium salts are insoluble; or (d) an aqueous solution comprising urea or alkane derivatives thereof or both and polyvinylpyrrolidone (PVP). The treatment fluid is placed in the well such that the solution contacts the carbonate formation at a pressure lower than the fracturing pressure. The treatment fluid is allowed to react with the carbonate formation, thereby depositing a film onto the formation surface or part of the formation surface. Then an acid solution is placed in the well such that the acid contacts the carbonate formation at a pressure lower than the fracturing pressure.

    COMPOSITIONS AND METHODS FOR TREATING SUBTERRANEAN FORMATIONS
    2.
    发明申请
    COMPOSITIONS AND METHODS FOR TREATING SUBTERRANEAN FORMATIONS 审中-公开
    组合物和处理亚硝酸盐形成的方法

    公开(公告)号：US20160032700A1

    公开(公告)日：2016-02-04

    申请号：US14449899

    申请日：2014-08-01

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Li Jiang ,  Bruno Lecerf ,  Connor Coley ,  Philip Sullivan ,  Brent Busby ,  Jeremy Bedard

    IPC: E21B43/25 ,  C09K8/90 ,  C09K8/88

    CPC classification number: C09K8/905 ,  C09K8/725 ,  C09K8/74 ,  C09K8/882

    Abstract: Methods for treating subterranean wells in which the producing formation is a carbonate comprise preparing a treatment fluid comprising either: (a) an aqueous solution of a multivalent-cation reacting polymer; (b) a solution comprising a fatty acid and an ethanolamine; (c) an aqueous acidic solution of one or more compounds whose calcium salts are insoluble; or (d) an aqueous solution comprising urea or alkane derivatives thereof or both and polyvinylpyrrolidone (PVP). The treatment fluid is placed in the well such that the solution contacts the carbonate formation at a pressure higher than or equal to the fracturing pressure. The treatment fluid is allowed to react with the carbonate formation, thereby depositing a film onto the formation surface or parts of the formation surface. Then an acid solution is placed in the well such that the acid contacts the carbonate formation at a pressure higher than or equal to the fracturing pressure.

    Abstract translation: 用于处理生产地层为碳酸盐的地下井的方法包括制备处理流体，其包括：（a）多价阳离子反应聚合物的水溶液; （b）包含脂肪酸和乙醇胺的溶液; （c）钙盐不溶的一种或多种化合物的酸性水溶液; 或（d）包含尿素或其烷烃衍生物或二者的水溶液和聚乙烯吡咯烷酮（PVP）。 将处理流体放置在井中，使得溶液以高于或等于压裂压力的压力接触碳酸盐岩层。 使处理流体与碳酸盐岩层反应，从而将膜沉积到地层表面或地层表面上。 然后将酸溶液放置在井中，使得酸在高于或等于压裂压力的压力下接触碳酸盐岩层。

    Methods for Servicing Subterranean Wells
    6.
    发明申请
    Methods for Servicing Subterranean Wells 有权
    维护地下井的方法

    公开(公告)号：US20130025863A1

    公开(公告)日：2013-01-31

    申请号：US13627904

    申请日：2012-09-26

    Applicant: Schlumberger Technology Corporation

    Inventor： Lijun Lin ,  Quanxin Guo ,  Brent Busby ,  Philip F. Sullivan

    IPC: C09K8/512 ,  E21B33/138

    CPC classification number: C09K8/36 ,  C09K8/12 ,  C09K8/5083 ,  C09K8/512 ,  C09K2208/08 ,  C09K2208/30 ,  E21B21/003

    Abstract: Pumpable process-fluid compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of controlling lost circulation in subterranean wells. Upon entering at least one lost circulation zone, the compositions crosslink, thereby forming a barrier that minimizes or stops fluid flow from the wellbore into the lost circulation zone.

    Abstract translation: 可泵送的工艺流体组合物包含聚丙烯酰胺，非金属交联剂和pH调节材料。 这种组合物在控制地下井中的流失的情况下具有实用性。 在进入至少一个失水循环区域时，组合物交联，从而形成最小化或阻止流体从井眼流入损失循环区域的阻挡层。

    Compositions and methods for treating subterranean formations
    7.
    发明授权
    Compositions and methods for treating subterranean formations 有权

    公开(公告)号：US10253249B2

    公开(公告)日：2019-04-09

    申请号：US14449961

    申请日：2014-08-01

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Li Jiang ,  Bruno Lecerf ,  Connor Coley ,  Philip Sullivan ,  Brent Busby ,  Jeremy Bedard

    IPC: E21B43/28 ,  C09K8/72 ,  C09K8/74

    Abstract: Methods for treating subterranean wells in which the producing formation is a carbonate comprise preparing a treatment fluid comprising either: (a) an aqueous solution of a multivalent-cation reacting polymer; (b) a solution comprising a fatty acid and an ethanolamine; (c) an aqueous acidic solution of one or more compounds whose calcium salts are insoluble; or (d) an aqueous solution comprising urea or alkane derivatives thereof or both and polyvinylpyrrolidone (PVP). The treatment fluid is placed in the well such that the solution contacts the carbonate formation at a pressure lower than the fracturing pressure. The treatment fluid is allowed to react with the carbonate formation, thereby depositing a film onto the formation surface or part of the formation surface. Then an acid solution is placed in the well such that the acid contacts the carbonate formation at a pressure lower than the fracturing pressure.

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