NO972010L - Sealing device at closing valve - Google Patents

Sealing device at closing valve

Info

Publication number
NO972010L
NO972010L NO972010A NO972010A NO972010L NO 972010 L NO972010 L NO 972010L NO 972010 A NO972010 A NO 972010A NO 972010 A NO972010 A NO 972010A NO 972010 L NO972010 L NO 972010L
Authority
NO
Norway
Prior art keywords
opening
production
valve body
valve
end portion
Prior art date
Application number
NO972010A
Other languages
Norwegian (no)
Other versions
NO972010D0 (en
Inventor
Magne Petter Nilsen
Magnus Aase
Original Assignee
Subsurface Technology As
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 Subsurface Technology As filed Critical Subsurface Technology As
Priority to NO972010A priority Critical patent/NO972010L/en
Publication of NO972010D0 publication Critical patent/NO972010D0/en
Publication of NO972010L publication Critical patent/NO972010L/en

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  • Lift Valve (AREA)

Abstract

Tetningsanordning ved en stengeventil med en første funksjonsstilling, hvori stengeventilen (36) tillater en kommunikasjon mellom en grunn formasjon (4) og et produksjonsror (26), som er innført i en brønn (2) i grunnformasjonen via en åpning (124) i veggen av produksjonsroret (26), og en annen funksjonsstilling, hvori den hindrer en sådan kommunikasjon. Stengeventilen (36) omfatter et hylseformet ventillegeme (120), som anordnet koaksialt utenpå produksjonsroret (26) og er innrettet til å bli beveget aksialt i forhold til dette mellom to stillinger tilsvarende ventilens funksjonsstillinger, hvori det ikke dekker resp. dekker åpningen (124). Et endeparti av ventillegemet er stadig tettende forbundet med produksjonsrøret på en side av åpningen. Et annet endeparti (122) av ventillegemet (120) kan bli brakt til tettende anlegg mot et samvirkende seteparti eller overflateparti (125) av produksjonsroret (26) ved den motsatte side av åpningen (124). Overfiatepartiet (125) av produksjonsroret (26) og det annet endeparti (122) av ventillegemet (120) er dimensjonert på en slik måte at det mellom disse er en presspasning når ventillegemet (120) befinner seg i en stilling hvori det dekker åpningen.Sealing device at a closing valve having a first operating position, wherein the closing valve (36) permits communication between a basic formation (4) and a production pipe (26), which is introduced into a well (2) of the basic formation via an opening (124) in the wall of the production rudder (26), and another position of function in which it prevents such communication. The shut-off valve (36) comprises a sleeve-shaped valve body (120), which is arranged coaxially on the outside of the production pipe (26) and is arranged to be moved axially in relation thereto between two positions corresponding to the operating positions of the valve, in which it does not cover, respectively. covers the opening (124). One end portion of the valve body is constantly sealed to the production tube on one side of the opening. Another end portion (122) of the valve body (120) may be brought into sealing abutment against a cooperating seat portion or surface portion (125) of the production tubing (26) at the opposite side of the opening (124). The top portion (125) of the production rudder (26) and the other end portion (122) of the valve body (120) are dimensioned in such a way that there is a pressure fit between them when the valve body (120) is in a position in which it covers the opening.

NO972010A 1997-04-30 1997-04-30 Sealing device at closing valve NO972010L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO972010A NO972010L (en) 1997-04-30 1997-04-30 Sealing device at closing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO972010A NO972010L (en) 1997-04-30 1997-04-30 Sealing device at closing valve

Publications (2)

Publication Number Publication Date
NO972010D0 NO972010D0 (en) 1997-04-30
NO972010L true NO972010L (en) 1998-02-17

Family

ID=19900687

Family Applications (1)

Application Number Title Priority Date Filing Date
NO972010A NO972010L (en) 1997-04-30 1997-04-30 Sealing device at closing valve

Country Status (1)

Country Link
NO (1) NO972010L (en)

Also Published As

Publication number Publication date
NO972010D0 (en) 1997-04-30

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