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    IN-SITU ACID STIMULATION OF CARBONATE FORMATIONS WITH ACID-PRODUCING MICROORGANISMS
    3.
    发明申请
    IN-SITU ACID STIMULATION OF CARBONATE FORMATIONS WITH ACID-PRODUCING MICROORGANISMS 审中-公开

    公开(公告)号：US20140202685A1

    公开(公告)日：2014-07-24

    申请号：US13748839

    申请日：2013-01-24

    申请人： HALLIBURTON ENERGY SERVICES, INC

    发明人： Achala V. Danait ,  Lalit Pandurang Salgaonkar ,  Ramesh Uppuluri

    IPC分类号： E21B43/16 ,  C09K8/582

    CPC分类号： C09K8/582

    摘要： Methods of treating a subterranean formation penetrated by a wellbore of a well, wherein the subterranean formation includes carbonate. The methods can include the following steps of: (1) optionally, fracturing the subterranean formation; (2) optionally, acidizing the subterranean formation with a Bronsted-Lowry acid; (3) treating the subterranean formation with an acid-producing microorganism, a nutrient for the microorganism, and, if needed, a suitable electron acceptor for respiration by the microorganism; (4) optionally, flushing the wellbore with a wash fluid to push the microorganism deeper into the subterranean formation and wash it away from the metal tubulars of the well; (5) preferably, shutting-in the well for a required incubation period for in-situ acid generation by the microorganism; and (6) preferably, after the shut-in, flowing back fluid from the subterranean formation into the wellbore.

    ALKALINE PERSULFATE FOR LOW-TEMPERATURE BREAKING OF POLYMER VISCOSIFIED FLUID
    4.
    发明申请
    ALKALINE PERSULFATE FOR LOW-TEMPERATURE BREAKING OF POLYMER VISCOSIFIED FLUID 有权
    聚合物粘稠液体低温断裂的碱性聚合物

    公开(公告)号：US20130098611A1

    公开(公告)日：2013-04-25

    申请号：US13709480

    申请日：2012-12-10

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： Lalit Pandurang Salgaonkar ,  Achala V. Danait ,  Chetan Prakash

    IPC分类号： C09K8/00 ,  E21B43/16 ,  E21B43/04 ,  E21B33/138 ,  E21B43/26

    CPC分类号： C09K8/00 ,  B08B9/02 ,  C09K8/68 ,  C09K8/685 ,  C09K2208/26 ,  E21B33/138 ,  E21B43/04 ,  E21B43/16 ,  E21B43/26

    摘要： A persulfate compound activated by a strong base is used for low-temperature breaking of fluids viscosified with one or more water-soluble synthetic polymers, wherein the water-soluble synthetic polymers are selected from the group consisting of polyacrylamides, copolymers of polyacrylamide, derivatives of polyacrylamide or of copolymers of polyacrylamide, and any combination thereof. The breaker system can be used in an oilfield or pipeline application where such a synthetic polymer, a multi-chain polysaccharide, or combination thereof may be present in a fluid. It is particularly useful at low temperatures of less than 100° F.

    摘要翻译： 使用由强碱活化的过硫酸盐化合物用于用一种或多种水溶性合成聚合物粘稠的流体的低温断裂，其中所述水溶性合成聚合物选自聚丙烯酰胺，聚丙烯酰胺的共聚物，聚丙烯酰胺的衍生物 聚丙烯酰胺或聚丙烯酰胺的共聚物及其任何组合。 断路器系统可以用在油田或管道应用中，其中这种合成聚合物，多链多糖或其组合可以存在于流体中。 它在低于100°F的低温下特别有用。

    CATIONIC VISCOELASTIC SURFACTANT WITH NON-CATIONIC CORROSION INHIBITOR AND ORGANIC ANION FOR ACIDIZING
    7.
    发明申请
    CATIONIC VISCOELASTIC SURFACTANT WITH NON-CATIONIC CORROSION INHIBITOR AND ORGANIC ANION FOR ACIDIZING 审中-公开
    非阳离子腐蚀抑制剂和有机阴离子的阳离子粘弹性表面活性剂

    公开(公告)号：US20140256604A1

    公开(公告)日：2014-09-11

    申请号：US13787549

    申请日：2013-03-06

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： Sushant Dattaram Wadekar ,  Nisha Kaustubh Pandya ,  Lalit Pandurang Salgaonkar ,  Anupom Sabhapondit

    IPC分类号： C09K8/74

    CPC分类号： C09K8/74 ,  C09K2208/30

    摘要： A treatment fluid and method treating a zone of a subterranean formation penetrated by a wellbore. The treatment fluid includes: (i) water; (ii) a strong acid; (iii) a cationic viscoelastic surfactant; (iv) an anionic organic component having at least 4 carbon atoms; and (v) a non-cationic corrosion inhibitor; wherein the pH of the treatment fluid is less than 0.5. Preferably, the viscosity of the treatment fluid is less than 5 cP at 40 sec-1. The method includes the steps of: (A) forming the treatment fluid; (B) introducing the treatment fluid through the wellbore into the zone; and (C) allowing time for the strong acid in the treatment fluid to spend in the formation. Preferably, as the acid spends in the subterranean formation, the viscosity of the treatment fluid increases in the well to above 5 cP. Such a treatment fluid shows good rheological properties at temperatures above 93° C. (200° F.).

    摘要翻译： 一种处理流体和处理井眼穿透的地层的区域的方法。 处理液包括：（i）水; （ii）强酸; （iii）阳离子粘弹性表面活性剂; （iv）具有至少4个碳原子的阴离子有机组分; 和（v）非阳离子缓蚀剂; 其中处理流体的pH小于0.5。 优选地，处理流体的粘度在40秒-1时小于5cP。 该方法包括以下步骤：（A）形成处理流体; （B）将处理流体通过井筒引入该区域; 和（C）允许处理液中强酸的时间花费在地层中。 优选地，当酸在地层中消耗时，处理液的粘度在孔中增加到高于5cP。 这种处理流体在高于93℃（200°F）的温度下显示出良好的流变性能。

    IN-SITU ACID STIMULATION OF CARBONATE FORMATIONS WITH ACID-PRODUCING MICROORGANISMS
    8.
    发明申请
    IN-SITU ACID STIMULATION OF CARBONATE FORMATIONS WITH ACID-PRODUCING MICROORGANISMS 审中-公开
    用酸生产微生物的碳酸钠形式的原位酸刺激

    公开(公告)号：US20140202684A1

    公开(公告)日：2014-07-24

    申请号：US13748765

    申请日：2013-01-24

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： Achala V. Danait ,  Lalit Pandurang Salgaonkar ,  Ramesh Uppuluri

    IPC分类号： E21B43/16 ,  C09K8/582

    CPC分类号： E21B43/16 ,  C09K8/74 ,  C09K8/92

    摘要： Methods of treating a subterranean formation penetrated by a wellbore of a well, wherein the subterranean formation includes carbonate. The methods can include the following steps of: (1) optionally, fracturing the subterranean formation; (2) optionally, acidizing the subterranean formation with a Bronsted-Lowry acid; (3) treating the subterranean formation with an acid-producing microorganism, a nutrient for the microorganism, and, if needed, a suitable electron acceptor for respiration by the microorganism; (4) optionally, flushing the wellbore with a wash fluid to push the microorganism deeper into the subterranean formation and wash it away from the metal tubulars of the well; (5) preferably, shutting-in the well for a required incubation period for in-situ acid generation by the microorganism; and (6) preferably, after the shut-in, flowing back fluid from the subterranean formation into the wellbore.

    摘要翻译： 处理由井的井筒渗透的地层的方法，其中所述地层包括碳酸盐。 该方法可以包括以下步骤：（1）任选地，将地层断裂; （2）任选地，用布朗斯台德 - 洛瑞酸酸化地下地层; （3）用产酸微生物处理地层，微生物营养物，如果需要，用微生物呼吸的合适的电子受体; （4）任选地，用洗涤液冲洗井筒，以将微生物深入地下层并将其从井的金属管中洗出来; （5）优选地，在井中关闭微生物原位酸产生所需的培养期; 和（6）优选地，在关闭之后，将流体从地下层流回到井筒中。

    Low density oil external emulsion with gelled internal phase as a gravel packing carrier fluid
    9.
    发明授权
    Low density oil external emulsion with gelled internal phase as a gravel packing carrier fluid 有权

    公开(公告)号：US10240077B2

    公开(公告)日：2019-03-26

    申请号：US15310411

    申请日：2014-06-11

    申请人： Halliburton Energy Services, Inc.

    发明人： Anant Kanhoba Ghumare ,  Lalit Pandurang Salgaonkar ,  Prerana Umesh Suryawanshi

    IPC分类号： C09K8/502 ,  C09K8/74 ,  E21B43/04

    摘要： A subterranean treatment fluid may include an invert emulsion including a clarified diutan-based gelled aqueous internal phase and a mineral oil-based external phase, and an acid composition. The acid composition may include at least one acid selected: formic acid, acetic acid, propionic acid, lactic acid, glycolic acid, and combinations thereof, at least one acid-generating compound selected from: an ester; an aliphatic polyester; an ortho ester; a poly(ortho ester); an ortho ether; a poly(ortho ether); a lactide; a poly(lactide); a glycolide; a poly(glycolide); an ε-caprolactone; a poly(ε-caprolactone); a hydroxybutyrate; a poly(hydroxybutyrate); an anhydride; a poly(anhydride); an aliphatic carbonate; an aliphatic polycarbonate; an amino acid; a poly(amino acid), and combinations thereof, or a combination of the at least one acid and the at least one acid-generating compound. The subterranean treatment fluid may have a density less than water.