JPH0127315B2 - - Google Patents

Info

Publication number
JPH0127315B2
JPH0127315B2 JP9236381A JP9236381A JPH0127315B2 JP H0127315 B2 JPH0127315 B2 JP H0127315B2 JP 9236381 A JP9236381 A JP 9236381A JP 9236381 A JP9236381 A JP 9236381A JP H0127315 B2 JPH0127315 B2 JP H0127315B2
Authority
JP
Japan
Prior art keywords
curvature
metal
joint
seal part
oil country
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP9236381A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57208384A (en
Inventor
Juichi Kawashima
Yoshasu Morita
Masaichi Arisue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP9236381A priority Critical patent/JPS57208384A/ja
Publication of JPS57208384A publication Critical patent/JPS57208384A/ja
Publication of JPH0127315B2 publication Critical patent/JPH0127315B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
JP9236381A 1981-06-17 1981-06-17 Joint for steel oil well pipe containing chromium to high degree Granted JPS57208384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9236381A JPS57208384A (en) 1981-06-17 1981-06-17 Joint for steel oil well pipe containing chromium to high degree

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9236381A JPS57208384A (en) 1981-06-17 1981-06-17 Joint for steel oil well pipe containing chromium to high degree

Publications (2)

Publication Number Publication Date
JPS57208384A JPS57208384A (en) 1982-12-21
JPH0127315B2 true JPH0127315B2 (enrdf_load_html_response) 1989-05-29

Family

ID=14052321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9236381A Granted JPS57208384A (en) 1981-06-17 1981-06-17 Joint for steel oil well pipe containing chromium to high degree

Country Status (1)

Country Link
JP (1) JPS57208384A (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPS57208384A (en) 1982-12-21

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