Title:
OIL WELL PIPE, OIL WELL PIPE SCREW JOINT, AND COATING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/043133
Kind Code:
A1
Abstract:
Provided is an oil well pipe screw joint having a solid lubrication coat having excellent lubrication and anti-rust properties. This oil well pipe constitutes a box (2) having a female screw or a pin (1) having a male screw that is used in the oil well pipe screw joint formed by linking the box (2) to the pin (1). The outermost layer of a screw section has a resin coat constituted of a binder resin containing an alkaline soap as a solid lubricant. The resin coat has an alkaline soap layer on the surface thereof.
Inventors:
KOGA TAKASHI (JP)
KAWAI TAKAMASA (JP)
GOTO SEIGO (JP)
FUJIMOTO SACHIKO (JP)
FUJISAWA KOTARO (JP)
SHODA KOICHI (JP)
MATSUMURA KAZUHIDE (JP)
OKUBO AKIRA (JP)
KOBAYASHI RYOTA (JP)
KUBO RYOTA (JP)
TOYOSAWA KOTA (JP)
KAWAI TAKAMASA (JP)
GOTO SEIGO (JP)
FUJIMOTO SACHIKO (JP)
FUJISAWA KOTARO (JP)
SHODA KOICHI (JP)
MATSUMURA KAZUHIDE (JP)
OKUBO AKIRA (JP)
KOBAYASHI RYOTA (JP)
KUBO RYOTA (JP)
TOYOSAWA KOTA (JP)
Application Number:
PCT/JP2023/029435
Publication Date:
February 29, 2024
Filing Date:
August 14, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
TOYO DRILUBE CO LTD (JP)
TOYO DRILUBE CO LTD (JP)
International Classes:
F16L15/04; C09D7/63; C09D201/08; C10M129/28; C10N30/06; C10N30/12; C10N40/00; C10N50/02
Domestic Patent References:
| WO2015030252A1 | 2015-03-05 |
Foreign References:
| JP2004053013A | 2004-02-19 | |||
| JP2008537062A | 2008-09-11 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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