Title:
METHOD OF MANUFACTURING THREADED JOINT FOR OIL WELL PIPE
Document Type and Number:
WIPO Patent Application WO/2002/075195
Kind Code:
A1
Abstract:
A method of manufacturing a threaded joint for oil well pipe having a pin part with a male thread, a box part with a female thread, metal seal parts provided on the pin part and the box part, respectively, and torque shoulder parts provided at the tip of the pin part and at the portion of the box part coming in contact with the tip of the pin part, respectively, comprising the step of providing a design procedure for determining the dimensions of each part, whereby a highly strong threaded joint showing an excellent leak resistance to internal and external pressures can be designed and manufactured.
Inventors:
MAEDA JUN (JP)
Application Number:
PCT/JP2001/002155
Publication Date:
September 26, 2002
Filing Date:
March 19, 2001
Export Citation:
Assignee:
SUMITOMO METAL IND (JP)
VALLOUREC MANNESMANN OIL & GAS (FR)
MAEDA JUN (JP)
VALLOUREC MANNESMANN OIL & GAS (FR)
MAEDA JUN (JP)
International Classes:
F16L15/00; F16L15/04; (IPC1-7): F16L15/04
Foreign References:
| JP2000081173A | 2000-03-21 | |||
| JPH08135855A | 1996-05-31 | |||
| JP2001082644A | 2001-03-30 |
Other References:
See also references of EP 1371892A4
Attorney, Agent or Firm:
Hirose, Shoichi (Nihonbashi Honcho 4-chome Chuo-ku Tokyo, JP)
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