Title:
SCREW JOINT FOR OIL WELL PIPE CASING
Document Type and Number:
Japanese Patent JP2017072187
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a screw joint for oil well pipe casing capable of contributing to resource saving of components of a screw joint for oil well pipe.SOLUTION: By making an inner diameter Dbid of a box larger than an inner diameter Dpid of a nose of a pin, a joint structure has the following relationship of a nose thickness tb of the box and a nose thickness tp of the pin: 0.70
Inventors:
YONEYAMA TAKESHI
KANAYAMA TARO
YOSHIKAWA MASAKI
TAKANO JUN
UEDA MASATERU
SEKI HARUHIKO
NAGAHAMA TAKUYA
KANAYAMA TARO
YOSHIKAWA MASAKI
TAKANO JUN
UEDA MASATERU
SEKI HARUHIKO
NAGAHAMA TAKUYA
Application Number:
JP2015199151A
Publication Date:
April 13, 2017
Filing Date:
October 07, 2015
Export Citation:
Assignee:
JFE STEEL CORP
International Classes:
F16L15/04; E21B17/042
Attorney, Agent or Firm:
Kenichiro Ochiai
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