JOINTS HAVING IMPROVED SEALABILITY, LUBRICATION AND CORROSION RESISTANCE
    32.
    发明申请
    JOINTS HAVING IMPROVED SEALABILITY, LUBRICATION AND CORROSION RESISTANCE 审中-公开
    具有改进的密封性,润滑和耐腐蚀性的接头

    公开(公告)号:WO2012010981A2

    公开(公告)日:2012-01-26

    申请号:PCT/IB2011002471

    申请日:2011-07-20

    Abstract: Embodiments of the present disclosure provide systems and methods for assembly of tubular joints which overcome the drawbacks and limitations of conventional joints. In certain embodiments, the tubular joints may comprise threaded joints used in oil exploration. Joints may be assembled using a combination of a) position control, b) specific production tolerances for thread parameters, and c) coatings applied on threaded areas of the joint. In further embodiments, the tubular joints may have no torque shoulder and/or metal to metal seals. In additional embodiments, the joints may be further assembled and disassembled several times without application of dope or grease and exhibit enhanced sealability. Beneficially, embodiments of the present disclosure may provide high tolerance, precisely assembled joints that provide improved performance (e.g., mechanical performance, sealability, corrosion resistance, lubrication) and reliability over non-premium connections without the expense associated with premium connections.

    Abstract translation: 本公开的实施例提供了用于组装管状接头的系统和方法,其克服了常规接头的缺陷和限制。 在某些实施例中,管状接头可以包括用于石油勘探中的螺纹接头。 接头可以使用以下组合进行组装:a)位置控制,b)螺纹参数的特定生产公差,以及c)施加在接头螺纹区域上的涂层。 在另外的实施例中,管状接头可以没有扭矩肩部和/或金属对金属密封件。 在另外的实施例中,可以将接头进一步组装和拆卸多次,而不施加涂料或油脂并显示出增强的密封性。 有利地,本公开的实施例可以提供高公差,精确组装的接头,其提供改进的性能(例如,机械性能,密封性,耐腐蚀性,润滑性)以及非优质连接的可靠性,而无需与高级连接相关联的费用。

    ADDITIVE FOR REDUCING TORQUE ON A DRILL STRING
    40.
    发明申请
    ADDITIVE FOR REDUCING TORQUE ON A DRILL STRING 审中-公开
    添加减少钻头的扭矩

    公开(公告)号:WO2006091562A1

    公开(公告)日:2006-08-31

    申请号:PCT/US2006/006030

    申请日:2006-02-22

    Abstract: A method of reducing the torque of a drill string used in drilling a subterranean well that includes injecting into the drilling fluid a composition including a base fluid and a polymer coated colloidal solid material. The polymer coated colloidal solid material includes: a solid particle having an weight average particle diameter (d5o) of less than ten microns, and a polymeric dispersing agent coated onto the surface of the solid particle during the cominution (i.e. grinding) process utilized to make the colloidal particles. The polymeric dispersing agent may be a water soluble polymer having a molecular weight of at least 2000 Daltons. The solid particulate material may be selected from materials having of specific gravity of at least 2.68 and preferably the solid particulate material may be selected from barium sulfate (barite), calcium carbonate, dolomite, ilmenite, hematite, olivine, siderite, strontium sulfate, combinations and mixtures of these and other similar solids that should be apparent to one of skill in the art.

    Abstract translation: 一种减少用于钻探地下井的钻柱的扭矩的方法,其包括向钻井液注入包括基础流体和聚合物涂覆的胶态固体材料的组合物。 聚合物涂覆的胶体固体材料包括:重均粒径(d 50)小于10微米的固体颗粒,以及在用于制备的粉末(即研磨))过程中涂覆在固体颗粒表面上的聚合物分散剂 胶体颗粒。 聚合物分散剂可以是分子量至少为2000道尔顿的水溶性聚合物。 固体颗粒材料可以选自比重至少为2.68的材料,并且优选固体颗粒材料可以选自硫酸钡(重晶石),碳酸钙,白云石,钛铁矿,赤铁矿,橄榄石,菱铁矿,硫酸锶,组合 以及这些和其它类似固体的混合物,其对于本领域技术人员应该是显而易见的。

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