公开(公告)号：US10371308B2

公开(公告)日：2019-08-06

申请号：US15565299

申请日：2016-04-21

申请人： VALLOUREC OIL AND GAS FRANCE ,  NIPPON STEEL CORPORATION

发明人： Arnaud Verleene ,  Nicolas Baudin ,  Cedric Vogt ,  Adil Jaafar

IPC分类号： F16L58/18 ,  C10M171/00 ,  C10M107/04 ,  C10M107/28 ,  C10M107/30 ,  C10M107/44 ,  C10M125/02 ,  C10M125/22 ,  C10M129/40 ,  C10M145/14 ,  C10M159/06

摘要： The invention concerns a threaded portion of a tubular element for a threaded tubular connection having an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion. The threading and the first sealing surface are coated with a metallic anti-galling layer wherein zinc (Zn) is the major element by weight, the metallic anti-galling layer being at least partially coated with a lubricant layer comprising a resin and a dry solid lubricant powder dispersed in the resin.

公开(公告)号：US11124733B2

公开(公告)日：2021-09-21

申请号：US15565263

申请日：2016-04-21

申请人： VALLOUREC OIL AND GAS FRANCE ,  NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Arnaud Verleene ,  Nicolas Baudin ,  Cedric Vogt ,  Adil Jaafar

IPC分类号： F16L58/08 ,  C10M171/00 ,  C23C28/00 ,  C25D7/00 ,  C25D3/56 ,  C25D5/12 ,  F16L57/00 ,  C10N10/02 ,  C10N10/04 ,  C10N10/12 ,  C10N10/14 ,  C10N40/34 ,  C10N50/08 ,  C10N50/00 ,  C10N70/00 ,  C10N80/00 ,  E21B17/042

摘要： A threaded tubular connection for drilling or operating hydrocarbon wells contains a portion of a tubular element with a male end having an axis of revolution and provided with a first threading extending about the axis of revolution, the male end portion being complementary with a portion of a tubular element with a female end having an axis of revolution and provided with a second threading extending about the axis of revolution, the male and female end portions being capable of being connected by makeup, each of the male and female end portions further comprising a sealing surface with a metal-metal interference, wherein the threading and the sealing surfaces of the male and female end portions are coated with a metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is the major element by weight. One of the metallic anti-corrosion and anti-galling layers is coated with a passivation layer and the other is at least partially coated with a lubricant layer.