Oil based synthetic hydrocarbon drilling fluid
    3.
    发明公开
    Oil based synthetic hydrocarbon drilling fluid 失效
    合成碳的钻井液油基

    公开(公告)号:EP1029908A3

    公开(公告)日:2000-11-29

    申请号:EP00110366.2

    申请日:1991-03-27

    申请人: M-I L.L.C.

    IPC分类号: C09K7/06

    摘要: The present invention relates to an improved continuous phase for an oil based drilling fluid and specifically a synthetic hydrocarbon continuous phase which is non-polluting and minimally toxic. The invention provides excellent drilling fluid properties under a wide variety of drilling conditions. The synthetic hydrocarbons are selected from the group consisting of branched chain oligomers synthesized from one or more olefins containing a C 2 to C 14 chain length and wherein the oligomers have an average molecular weight of from 120 to 1000. In the drilling fluid compositions, suitable emulsifiers, wetting agents, viscosifiers, weight materials and fluid loss additives are utilized in conjunction with water and/or a brine phase for the desired rheological properties.

    Oil based synthetic hydrocarbon drilling fluid
    6.
    发明公开
    Oil based synthetic hydrocarbon drilling fluid 失效
    Bohrflüssigkeitaus synthetischen Kohlenstoffen aufÖl-Basis

    公开(公告)号:EP1029908A2

    公开(公告)日:2000-08-23

    申请号:EP00110366.2

    申请日:1991-03-27

    申请人: M-I L.L.C.

    IPC分类号: C09K7/06

    摘要: The present invention relates to an improved continuous phase for an oil based drilling fluid and specifically a synthetic hydrocarbon continuous phase which is non-polluting and minimally toxic. The invention provides excellent drilling fluid properties under a wide variety of drilling conditions. The synthetic hydrocarbons are selected from the group consisting of branched chain oligomers synthesized from one or more olefins containing a C 2 to C 14 chain length and wherein the oligomers have an average molecular weight of from 120 to 1000. In the drilling fluid compositions, suitable emulsifiers, wetting agents, viscosifiers, weight materials and fluid loss additives are utilized in conjunction with water and/or a brine phase for the desired rheological properties.

    摘要翻译: 本发明涉及一种用于油基钻井液的改进的连续相,特别涉及无污染和最低毒性的合成烃连续相。 本发明在各种钻井条件下提供优异的钻井液性质。 合成烃选自由一种或多种含C2至C14链长度的烯烃合成的支链低聚物,其中低聚物的平均分子量为120-1000。在钻井液组合物中,合适的乳化剂, 润湿剂,增粘剂,重量材料和流体损失添加剂与水和/或盐水相结合使用以获得所需的流变性质。

    Shale hydration inhibition agent and method of use
    9.
    发明公开
    Shale hydration inhibition agent and method of use 有权
    页岩水化抑制剂及其使用方法

    公开(公告)号:EP2484742A1

    公开(公告)日:2012-08-08

    申请号:EP12166274.6

    申请日:2005-10-04

    申请人: M-I L.L.C.

    摘要: A water-base fluid for use in drilling, cementing, workover, fracturing and abandonment of subterranean wells through a formation containing shale which swells in the presence of water. In one illustrative embodiment, the drilling fluid is composed of an aqueous based continuous phase, a weighting agent, and a shale hydration inhibition agent. The shale hydration inhibition agent should have the general formula:

    in which R and R' independently selected from hydrogen, methyl, ethyl or propyl, and X has a value from 1 to 6. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the drilling fluid. The drilling fluid may be formulated to include a wide variety of components of aqueous based drilling fluids, such as weighting agents, fluid loss control agents, suspending agents, viscosifying agents, rheology control agents, as well as other compounds and materials known to one of skill in the art. The fluids may also be used in fracturing and the disposal by reinjection of drilling cutting into a selected subterranean disposal formation.

    摘要翻译: 一种水基流体,用于通过含有在水存在下膨胀的页岩的地层钻井,固井,修井,压裂和放弃地下井。 在一个说明性实施例中,钻井液由水基连续相,增重剂和页岩水化抑制剂组成。 页岩水化抑制剂应该具有以下通式:其中R和R'独立地选自氢,甲基,乙基或丙基,并且X具有1至6的值。页岩水化抑制剂以足够的浓度存在以基本上 在与钻井液接触时减少页岩钻屑的膨胀。 钻井液可以配制成包括水基钻井液的各种组分,如增重剂,失水控制剂,悬浮剂,增粘剂,流变控制剂,以及其它化合物和已知的其它化合物和材料 本领域的技能。 流体也可以用于压裂和处理,通过将钻孔切割回注到选定的地下处置地层中。