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    Buffer-regulated carbonate acidization
    51.
    发明授权
    Buffer-regulated carbonate acidization 失效
    缓冲液调节碳酸盐酸化

    公开(公告)号：US3885630A

    公开(公告)日：1975-05-27

    申请号：US43628974

    申请日：1974-01-24

    Applicant: SHELL OIL CO

    Inventor： RICHARDSON EDWIN A

    IPC: C09K8/72 ,  E21B43/27

    CPC classification number: C09K8/72 ,  Y10S507/933

    Abstract: The rate of acidizing a material such as a carbonate reservoir is reduced by treating it with an aqueous solution that contains enough weak acid to react with a significant amount of the material and enough weak acid salt to provide a weak acid to weak salt ratio that maintains the concentration of ionized weak acid at a relatively low level at which its rate of reaction is relatively low.

    Abstract translation: 通过用含有足够的弱酸与足够的弱酸反应的水溶液处理碳酸盐储存器等材料的酸化速度降低，并且足够的弱酸盐提供弱酸与弱盐的比例，从而保持 电离弱酸的浓度在相对较低的水平，其反应速率较低。

    Acidizing composition
    52.
    发明授权
    Acidizing composition 失效
    酸化组合物

    公开(公告)号：US3779916A

    公开(公告)日：1973-12-18

    申请号：US3779916D

    申请日：1971-11-04

    Applicant: DOW CHEMICAL CO

    Inventor： CROWE C

    IPC: C09K8/72 ,  E21B43/27

    CPC classification number: C09K8/72 ,  Y10S507/933

    Abstract: An acid-in-oil emulsion having a greatly enhanced retardation rate is prepared by employing in the emulsion a mixture of an effective amount of an oil wetting surfactant, e.g., a saturated hydrocarbon sulfonate, and an emulsifier, e.g., an alkylaryl sulfonic acid or water soluble salt thereof.

    Abstract translation: 通过在乳液中使用有效量的油润湿表面活性剂（例如饱和烃磺酸盐）和乳化剂（例如烷基芳基磺酸或其盐）的混合物来制备具有大大增强的延迟速率的油包水乳液 水溶性盐。

    Acid composition and use thereof in treating fluid-bearing geologic formations
    53.
    发明授权
    Acid composition and use thereof in treating fluid-bearing geologic formations 失效
    酸性组合物及其在处理流体轴承地质学中的应用

    公开(公告)号：US3779915A

    公开(公告)日：1973-12-18

    申请号：US3779915D

    申请日：1972-09-21

    Applicant: DOW CHEMICAL CO

    Inventor： KUCERA C

    IPC: C09K8/76 ,  E21B43/26 ,  E21B43/27

    CPC classification number: C09K8/76 ,  E21B43/26 ,  Y10S507/922 ,  Y10S507/933

    Abstract: A composition is provided which is especially useful as a fluid loss additive for acidic aqueous solutions. The composition is prepared by first mixing together an emulsifier, an oil soluble surfactant dispersing agent and a carrier oil. Clay particles are then dispersed in the mixture followed by an adhesive binder which functions to bind the clay particles together when screened out on a formation face.

    Abstract translation: 提供了一种特别可用作酸性水溶液的流体损失添加剂的组合物。 通过首先将乳化剂，油溶性表面活性剂分散剂和载体油混合在一起来制备组合物。 然后将粘土颗粒分散在混合物中，然后粘合粘合剂，当粘合剂粘合剂在形成面上筛选时，其粘合粘合剂粘合在一起。

    Gelled acidic compositions
    55.
    发明授权
    Gelled acidic compositions 失效
    凝胶酸组合物

    公开(公告)号：US3635835A

    公开(公告)日：1972-01-18

    申请号：US3635835D

    申请日：1969-08-20

    Applicant: DU PONT

    Inventor： PETERSON MARVIN L

    IPC: C06B23/00 ,  C06B45/10 ,  C08L5/00 ,  C08L33/26 ,  B01J13/00

    CPC classification number: C06B45/10 ,  C06B23/001 ,  C08L5/00 ,  C08L33/26 ,  Y10S507/903 ,  Y10S507/933 ,  C08L2666/02

    Abstract: Aqueous acidic compositions gelled with a polymer having pendent amide or nitrile functions cross-linked by a monomer containing a plurality of -(CH2OR) groups bonded to amido nitrogen and a process for their preparation. The gelling system of this invention finds particular utility in explosive compositions based on an oxidizing agent and one or more fuels or sensitizers.

    Abstract translation: 用具有侧酰胺或腈的聚合物胶凝的水性酸性组合物通过含有与酰氨基氮键合的多个 - （CH 2 OR）基团的单体交联，并且其制备方法。 本发明的胶凝体系在基于氧化剂和一种或多种燃料或敏化剂的爆炸性组合物中具有特别的用途。

    Corrosion inhibitor deterioration reducer
    56.
    发明授权
    Corrosion inhibitor deterioration reducer 失效
    腐蚀抑制剂降解剂

    公开(公告)号：US3567634A

    公开(公告)日：1971-03-02

    申请号：US3567634D

    申请日：1967-07-24

    Applicant: HALLIBURTON CO

    Inventor： BILLINGS WILLIAM E ,  MORRIS DAVID

    IPC: C23F11/04 ,  E21B43/28

    CPC classification number: C23F11/04 ,  Y10S507/933 ,  Y10S507/939

    Abstract: THIS PATENT DESCRIBES A NON-CORROSIVE FLUID COMPOSITION FOR TREATING EARTHEN FORMATIONS CONTAINING SULFIDES, CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF HYDROCHLORIC ACID, A CORROSION INHIBITING AMOUNT OF A HYDROCHLORIC ACID INHIBITING AGENT SUBJECT TO DETERIORATION BY SULFIDES, SAID SULFIDES BEING PRESENT IN A SUFFICIENT AMMOUNT TO REDUCE THE EFFECTIVENESS OF SAID INHIBITING AGENT, AND A CORROSION INHIBITOR DETERIORATION REDUCING AGENT HAVING THE FORMULA OF

    R-S(=O)-R

    WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL GROUP AND ARYL GROUP, EACH GROUP HAVING FROM 2 TO 10 CARBON ATOMS AND SAID CORROSION INHIBITOR DETERIORATION REDUCING AGENT BEING PRESENT IN A SUFFICIENT AMMOUNT TO REDUCE THE DETERIORATION EFFECT OF SAID SULFIDES ON SAID INHIBITING AGENT.

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