Compressible lubricant with memory combined with anaerobic pipe sealant
    45.
    发明授权
    Compressible lubricant with memory combined with anaerobic pipe sealant 失效
    可记忆润滑剂与记忆结合厌氧管密封胶

    公开(公告)号:US5431831A

    公开(公告)日:1995-07-11

    申请号:US127291

    申请日:1993-09-27

    Inventor: Larry W. Vincent

    Abstract: A compressible graphite lubricant having a memory suspended in an anaerobic adhesive pipe sealant mixture of a polymerizable liquid acrylate ester monomer and a peroxy polymerization initiator. The graphite particles are formed of expanded graphite which gives the pipe sealant both compressibility and lubricating characteristics. The compound has the ability to change from a liquid with sufficient lubricity to assemble standard API and premium threaded connections without galling and then transform and fix itself into a continuous solid blocking or sealing agent in the gaps of the thread form. The expanded (compressible) graphite has a memory and, as part of the anaerobic fixing compound, allows the pipe sealant to maintain its sealing integrity under cycling of tension, compression, bending, and thermal expansion and contraction. The ability of the compressible lubricant/pipe sealant compound to maintain sealing integrity under cycling of tension, compression, bending, and thermal expansion and contraction loads makes it particularly suitable for use in vertical and horizontal oil and gas wells using oil country tubular goods tubing, casing, and drill pipe joint. An additional aspect of the invention involves a threaded pipe having a compressible lubricant/pipe sealant as described above deposited on at least a part of the threaded portion thereof.

    Abstract translation: 一种可压缩石墨润滑剂,其具有悬浮在可聚合液态丙烯酸酯单体和过氧聚合引发剂的厌氧粘合剂管密封剂混合物中的记忆体。 石墨颗粒由膨胀石墨形成,使管密封胶具有压缩性和润滑特性。 该化合物具有从具有足够润滑性的液体改变的能力,以组装标准API和优质螺纹连接件而不会磨损,然后将其自身转化并固定在螺纹形式的间隙中的连续固体阻塞或密封剂中。 膨胀(可压缩)石墨具有记忆,并且作为厌氧固定化合物的一部分,允许管密封剂在张力,压缩,弯曲和热膨胀和收缩的循环下保持其密封完整性。 可压缩润滑剂/管道密封剂化合物在张力,压缩,弯曲和热膨胀和收缩载荷的循环下保持密封完整性的能力使其特别适用于使用油井管材料的垂直和水平油气井, 套管和钻杆接头。 本发明的另一方面涉及一种具有如上所述的可压缩润滑剂/管密封剂的螺纹管,其沉积在其螺纹部分的至少一部分上。

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