Title:
結合のための組立ツールを有し、直径の異なる2つの井戸用管の移行領域での中間空間のために用いられる密閉装置
Document Type and Number:
Japanese Patent JP4278487
Kind Code:
B2
Abstract:
A sealing system for the interspace in the transition region between two well pipes of different diameters, and a mounting tool for producing the sealing connection. The mounting tool is lowered via a drilling string through a larger diameter pipe and, with a sealing system, is placed on a holding docket on the upper end of a lower, smaller diameter, pipe. A rotation exerted on the mounting tool via the drilling string; causes the sealing system to be fixed to the lower pipe. Via the drilling string, the mounting tool is pressed vertically downwards against a sealing ring of the sealing system which, as a result, bears in a sealing manner against the inner wall of the upper pipe of larger diameter. This sealing position is fixed by rotating the mounting tool in one direction and by rotating the mounting tool in the other direction.
Inventors:
Friedrich Hennaike
Application Number:
JP2003374386A
Publication Date:
June 17, 2009
Filing Date:
November 04, 2003
Export Citation:
Assignee:
Her Butting Game Embeer und Company Cargage
International Classes:
E03B3/15; F16L25/00; E21B23/00; E21B33/04; E21B43/10; F16J15/00
Foreign References:
| GB2287264A | ||||
| GB2284222A | ||||
| US4474239 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto