NO932863L - LOADING STREETS FOR DOWN HOLE SEGREGATES - Google Patents
LOADING STREETS FOR DOWN HOLE SEGREGATESInfo
- Publication number
- NO932863L NO932863L NO93932863A NO932863A NO932863L NO 932863 L NO932863 L NO 932863L NO 93932863 A NO93932863 A NO 93932863A NO 932863 A NO932863 A NO 932863A NO 932863 L NO932863 L NO 932863L
- Authority
- NO
- Norway
- Prior art keywords
- wedges
- stem
- stop
- locking
- stop ring
- Prior art date
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Det er skaffet tilveie en låsestamme for bruk i brønnmontasjer, omfattende et sylindrisk legeme (12) som rundt en omkrets er forsynt med en rekke åpninger (20) hvori låsekiler (21) er bevegelig anbragt, hvilke kiler (21) er forspent radialt innover, samt en indre stamme (13,14) for for- flytting av kilene (21) fra en tilbaketrukket, spent beredskapsstilling til en utskjøvet, innstilt stilling. I tillegg innbefatter legemet (12) en rekke bevegelige stoppelementer (22) under kilene (21), hvilke stoppelementer (22) er utskjøvet i nevnte spente beredskapsstilling, slik at de kan samvirke med en stoppring (RJ i en produksjonsrørstreng i brønnen for å låse legemet (12) aksialt. Den ytre flate av den indre stamme (13,14) er hensiktsmessig profilert, og arrangementet er slik at den indre stamme (13,14) , når stoppelementene (22) griper inn i stoppringen, er bevegelig i forhold til legemet (12), fortrinnsvis etter avskjæring av et bruddorgan (15) mellom legemet og stammen, for å forskyve kilene (21) radialt til den innstilte stilling hvor kilene (21) stir i inngrep med en mottagende utforming (R,) på produksjonsrørstrengen, og etter denne inn- stilling/låsing å bringe stoppelementene (22) til å bevege seg radialt innover, fri fra stoppringen (RJ. Eventuell aksial belastning blir da tatt opp i det vesentlige fullstendig gjennom kilene (21).A locking stem is provided for use in well assemblies, comprising a cylindrical body (12) provided around a circumference with a plurality of openings (20) in which locking wedges (21) are movably disposed, which wedges (21) are biased radially inwardly. and an inner stem (13, 14) for moving the wedges (21) from a retracted, tense standby position to an extended, set position. In addition, the body (12) includes a plurality of movable stop members (22) below the wedges (21), which stop members (22) are extended in said tense emergency position so that they can cooperate with a stop ring (RJ in a production tubing string in the well to lock The outer surface of the inner stem (13,14) is suitably profiled and the arrangement is such that the inner stem (13,14), when the stop members (22) engage the stop ring, is movable in relation to the body. to the body (12), preferably after cutting a rupture member (15) between the body and the stem, to displace the wedges (21) radially to the set position where the wedges (21) are engaged by a receiving configuration (R 1) on the production tube string , and after this setting / locking to cause the stop elements (22) to move radially inwards, free from the stop ring (RJ. Any axial load is then taken up substantially completely through the wedges (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB919118408A GB9118408D0 (en) | 1991-08-28 | 1991-08-28 | Lock mandrel for downhole assemblies |
| PCT/GB1992/001524 WO1993005266A1 (en) | 1991-08-28 | 1992-08-19 | Lock mandrel for downhole assemblies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO932863D0 NO932863D0 (en) | 1993-08-12 |
| NO932863L true NO932863L (en) | 1993-08-12 |
Family
ID=26299449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO93932863A NO932863L (en) | 1991-08-28 | 1993-08-12 | LOADING STREETS FOR DOWN HOLE SEGREGATES |
Country Status (1)
| Country | Link |
|---|---|
| NO (1) | NO932863L (en) |
-
1993
- 1993-08-12 NO NO93932863A patent/NO932863L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO932863D0 (en) | 1993-08-12 |
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