Liquid additive comprising a sulfonated asphalt and processes therefor
and therewith
    41.
    发明授权
    Liquid additive comprising a sulfonated asphalt and processes therefor and therewith 失效
    含有磺化沥青的液体添加剂及其处理方法

    公开(公告)号:US5502030A

    公开(公告)日:1996-03-26

    申请号:US137533

    申请日:1993-10-18

    申请人: Bharat B. Patel

    发明人: Bharat B. Patel

    CPC分类号: C09K8/24 C09K8/06 C09K8/12

    摘要: A process for preparing a fluid additive comprises (1) mixing a viscosifier such as a water-soluble polymer with water to form a viscosified water; (2) contacting a glycol-based polymer with the viscosified water followed by mixing to prepare a glycol-viscosified water mixture; and (3) contacting at least one sulfonated asphalt with the glycol-viscosified water mixture wherein the fluid additive comprises water, a viscosifier, a glycol-based polymer, and at least one sulfonated asphalt. Also disclosed is a process for using the fluid additive in drilling applications.

    摘要翻译: 制备流体添加剂的方法包括(1)将水溶性聚合物之类的增粘剂与水混合以形成增稠水; (2)使乙二醇类聚合物与增稠水接触,然后混合,制备二醇稠化水混合物; 和(3)使至少一种磺化沥青与二醇增稠水混合物接触,其中流体添加剂包括水,增粘剂,基于二醇的聚合物和至少一种磺化沥青。 还公开了在钻井应用中使用流体添加剂的方法。

    Lost circulation material with rice fraction
    42.
    发明授权
    Lost circulation material with rice fraction 失效
    失水循环物料含米级

    公开(公告)号:US5118664A

    公开(公告)日:1992-06-02

    申请号:US676944

    申请日:1991-03-28

    IPC分类号: C09K8/06 C09K8/20

    摘要: An additive to reduce fluid loss from drilling fluids is comprised of comminuted products from the rice plant or blends of other comminuted plant materials with the rice products. Polymers to reduce fluid loss even lower and friction-reducing materials may be added to the plant materials.

    摘要翻译: 用于减少钻井液流失的添加剂包括来自水稻植物的粉碎产品或其他粉碎植物材料与米制品的混合物。 降低流体损失的聚合物甚至更低,并且减少摩擦材料可以添加到植物材料中。

    Modified non-polluting liquid phase shale swelling inhibition drilling
fluid and method of using same

    公开(公告)号:US4963273A

    公开(公告)日:1990-10-16

    申请号:US245267

    申请日:1988-09-16

    IPC分类号: C09K8/06

    CPC分类号: C09K8/06 Y10S507/905

    摘要: The present invention provides a modified liquid phase drilling fluid having desirable properties of shale swelling inhibition, lubrication, and high temperature performance. The fluid does not rely on the incorporation of inorganic salts or high molecular weight water soluble polymers for control of shale swelling or shale disintegration and exhibits performance characteristics, approaching those of oil base drilling fluids, without the objectionable properties of hydrocarbon oils or its potential hazardous impact on the environment. The fluid is comprised of the following: (1) a liquid phase containing; (a) a water phase comprising fresh water, seawater, brine, simulated brine, or mixtures thereof; and (b) a water-soluble component selected from the class consisting of polyhydric alcohols, glycol, glycol ethers, polypropylene glycols, polyethylene glycols, ethylene oxide-propylene oxide copolymers ("EO-PO"), alcohol-initiated EO-PO copolymers and/or mixtures thereof, the ratio of said water-soluble component in the total liquid phase being from about 5% to about 50% by volume; (2) a viscosifier for suspension of solids in said liquid phase; and (3) a filtration control agent. The fluid with the water soluble component will exhibit a lubricity coefficient lower than that for substantially the same fluid without the water soluble component as determined by the American Petroleum Institute's "Procedure for Determination of Lubricity Coefficient (Tentative)" (1980), and the linear swelling on a reconstituted "gumbo" shale inserted for about 60 minutes of said drilling fluid being from lower than that for substantially the same fluid without the water soluble component, as measured by the "Swelling Test", "Rigsite Shale Evaluation Techniques for Control of Shale-related Wellbore Instability Problems", SPE/IADC Paper No. 16054, pages 52-53, (1987).

    Antifloc additives for sodium bromide compositions
    44.
    发明授权
    Antifloc additives for sodium bromide compositions 失效
    用于溴化钠组合物的抗散剂添加剂

    公开(公告)号:US4804484A

    公开(公告)日:1989-02-14

    申请号:US71507

    申请日:1987-07-09

    申请人: Ahmad Dadgar

    发明人: Ahmad Dadgar

    摘要: Solid sodium bromide and aqueous sodium bromide solutions incorporate sodium tartrate and one or more amides of nitrolotriacetic acid in order to inhibit floc formation in aqueous sodium bromide solutions in the pH range 6-12 and in order to insure that the solid sodium bromide is free flowing.

    摘要翻译: 固体溴化钠和溴化钠水溶液加入酒石酸钠和一种或多种硝基三乙酸酰胺,以便在6-12 pH范围内抑制溴化钠水溶液中的絮凝形成,并确保固体溴化钠自由流动 。

    High temperature stable aqueous brine fluids viscosified by
N-heterocyclic organophosphorus compounds
    48.
    发明授权
    High temperature stable aqueous brine fluids viscosified by N-heterocyclic organophosphorus compounds 失效
    由N-杂环有机磷化合物增稠的高温稳定的盐水水溶液

    公开(公告)号:US4481120A

    公开(公告)日:1984-11-06

    申请号:US490625

    申请日:1983-05-02

    申请人: Israel Heilweil

    发明人: Israel Heilweil

    摘要: There is provided an aqueous brine fluid containing an N-heterocyclic organophosphorus compound which serves to increase the viscosity thereof. These viscosified brine fluids are particularly useful in drilling operations, most especially as solids-free drilling, completion, packer and workover fluids for drilling operations involving deep wells.

    摘要翻译: 提供了含有N-杂环有机磷化合物的盐水水溶液,其用于增加其粘度。 这些粘稠盐水流体在钻井作业中特别有用,尤其是无固体钻井,完井,封隔器和修井液用于钻井作业涉及深井。