US3581817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioned well bore liner and tool
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1969-03-13
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Granted: 1971-06-01
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Expires: 1989-03-13
Abstract
Abstract A well bore liner apparatus and a running tool, the liner apparatus having expansible anchor members at its lower end expansible into an underreamed section of the well bore to anchor the liner against upward movement, the liner also having upper anchor elements engageable in a previously set well casing, the tool being employed to tension the liner body between the lower and upper anchors. Such a construction in which the running tool is releasable from the liner before cementing of the lower anchor in the enlarged bore hole section. It is sometimes desirable to set perforated or slotted liners in well bores which traverse unconsolidated oil producing formations. In some instances, gravel is packed outside the liner to fill the annular space. On occasions, it may be desirable to apply heat to the formation or to the gravel pack by the injection of steam into the well, such heat tending to expand the usual liners and causing problems, such as release of the liner hanger.
Inventors
- 👤 Archer W Kammerer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:14
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/14; E21B43/00; E21B43/02; E21B43/10
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
87 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means retaining said anchor means initially in retracted position, means for tensioning said body, and means responsive to tensioning of said body for releasing said retaining means and expanding said anchor means into engagement with said casing.
Claim 2
Dependent Claim
87 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means retaining said anchor means initially in retracted position, means for tensioning said body, and means responsive to tensioning of said body for releasing said retaining means and expanding said anchor means into engagement with said casing.
Claim 3
Dependent Claim
59 words
In apparatus as defined in claim 1, said holding means comprising initially retracted holding members mounted on said body for lateral expansion outwardly of said body for engagement with the formation shoulder, an expanding member shiftable in said body against said holding members to expand said holding members laterally, and means for shifting said expanding member in said body.
Claim 4
Dependent Claim
29 words
In apparatus as defined in claim 2, said expanding member being shiftable and retained behind said holding members to prevent retraction of said holding members from their expanded position.
Claim 5
Dependent Claim
128 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said holding means comprising initially retracted holding members mounted on said body for lateral expansion outwardly of said body for engagement with the formation shoulder, an expanding member shiftable in said body against said holding members to expand said holding members laterally, means for shifting said expanding member in said body, and means engaging said expanding member to releasably retain said expanding member in its initial position prior to expanding said holding members.
Claim 6
Dependent Claim
128 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said holding means comprising initially retracted holding members mounted on said body for lateral expansion outwardly of said body for engagement with the formation shoulder, an expanding member shiftable in said body against said holding members to expand said holding members laterally, means for shifting said expanding member in said body, and means engaging said expanding member to releasably retain said expanding member in its initial position prior to expanding said holding members.
Claim 7
Dependent Claim
27 words
In apparatus as defined in claim 4, and means engaging said expanding member to retain said expanding member in its final position after expanding said holding members.
Claim 8
Dependent Claim
182 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said bodY engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said holding means comprising initially retracted holding members mounted on said body for lateral expansion outwardly of said body for engagement with the formation shoulder, an expanding member shiftable in said body against said holding members to expand said holding members laterally, means for shifting said expanding member in said body, a fluid passageway comprising a fluid passage in said expanding member, said shifting means comprising a trip member movable through the casing string into engagement with said expanding member to close said fluid passage and enable fluid pressure to be built up in the casing string to hydraulically shift said expanding member in said body to expand said holding members, and means for opening said fluid passageway after said expanding member has expanded said holding members.
Claim 9
Dependent Claim
182 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said bodY engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said holding means comprising initially retracted holding members mounted on said body for lateral expansion outwardly of said body for engagement with the formation shoulder, an expanding member shiftable in said body against said holding members to expand said holding members laterally, means for shifting said expanding member in said body, a fluid passageway comprising a fluid passage in said expanding member, said shifting means comprising a trip member movable through the casing string into engagement with said expanding member to close said fluid passage and enable fluid pressure to be built up in the casing string to hydraulically shift said expanding member in said body to expand said holding members, and means for opening said fluid passageway after said expanding member has expanded said holding members.
Claim 10
Dependent Claim
72 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said anchor means comprising initially retracted slips, and an expander for expanding said slips against the casing.
Claim 11
Dependent Claim
72 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said anchor means comprising initially retracted slips, and an expander for expanding said slips against the casing.
Claim 12
Dependent Claim
25 words
In apparatus as defined in claim 7 and releasable means holding said slips retracted, said releasable means being released responsive to tensioning of said body.
Claim 13
Dependent Claim
117 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said anchor means comprising initially retracted slip elements, shearable means connecting said slip elements to said body, a sleeve shiftable relative to said body, means for shearing said shearable means responsive to shifting of said sleeve relative to said body, and expander means engaging said slip elements following shearing of said shearable means to wedge said slips into engagement with said casing.
Claim 14
Dependent Claim
117 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said anchor means comprising initially retracted slip elements, shearable means connecting said slip elements to said body, a sleeve shiftable relative to said body, means for shearing said shearable means responsive to shifting of said sleeve relative to said body, and expander means engaging said slip elements following shearing of said shearable means to wedge said slips into engagement with said casing.
Claim 15
Dependent Claim
22 words
In apparatus as defined in claim 9, and spring means normally biasing said slip elements into wedging engagement with said expander means.
Claim 16
Dependent Claim
158 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said anchor means comprising initially retracted slip elements, shearable means connecting said slip elements to said body, a sleeve shiftable relative to said body, means for shearing said shearable means responsive to shifting of said sleeve relative to said body, expander means engaging said slip elements following shearing of said shearable means to wedge said slips into engagement with said casing, spring means normally biasing said slip elements into wedging engagement with said expander means, and said tensioning means including shoulder means on said sleeve and said body engageable to tension said body responsive to the application of a force to said sleeve.
Claim 17
Dependent Claim
158 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with said casing, means for tensioning said body, said anchor means comprising initially retracted slip elements, shearable means connecting said slip elements to said body, a sleeve shiftable relative to said body, means for shearing said shearable means responsive to shifting of said sleeve relative to said body, expander means engaging said slip elements following shearing of said shearable means to wedge said slips into engagement with said casing, spring means normally biasing said slip elements into wedging engagement with said expander means, and said tensioning means including shoulder means on said sleeve and said body engageable to tension said body responsive to the application of a force to said sleeve.
Claim 18
Dependent Claim
35 words
In apparatus as defined in claim 11, and said tensioning means further including tool means releasably engaged with said sleeve and connectable to a running-in string of pipe for applying said force to said sleeve.
Claim 19
Dependent Claim
103 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with Said casing, means for tensioning said body, said anchor means comprising initially retracted slip means, a sleeve shiftable relative to said body and having expander means for expanding said slip means into anchoring engagement with said casing upon movement of said sleeve, and said tensioning means including coengageable parts on said sleeve and said body.
Claim 20
Dependent Claim
103 words
In liner setting apparatus for tensioning a liner in a well between a well casing in the well bore and a downwardly facing formation shoulder: a tubular liner body, holding means carried by said body engageable with said formation shoulder, anchor means carried by said body engageable with Said casing, means for tensioning said body, said anchor means comprising initially retracted slip means, a sleeve shiftable relative to said body and having expander means for expanding said slip means into anchoring engagement with said casing upon movement of said sleeve, and said tensioning means including coengageable parts on said sleeve and said body.
Claim 21
Dependent Claim
35 words
In apparatus as defined in claim 13, said tensioning means further including tool means releasably engaged with said sleeve and connectable to a running-in string of pipe for applying a tension force to said sleeve.
Claim 22
Dependent Claim
57 words
In apparatus as defined in claim 13, said tensioning means further including tool means releasably engaged with said sleeve and connectable to a running-in string of pipe for applying a tension force to said sleeve, said tool means including a tubular stinger extending into said body, and means forming a seal between said stinger and said body.
Claim 23
Dependent Claim
66 words
In apparatus as defined in claim 13, said tensioning means further including tool means releasably engaged with said sleeve and connectable to a running-in string of pipe for applying a tension force to said sleeve, said tool means including a tubular stinger extending into said body and having a packing cup thereon sealingly engaged in said body to form a seal between said stinger and body.
Claim 24
Dependent Claim
52 words
In apparatus as defined in claim 13, said tensioning means further including tool means releasably engaged with said sleeve and connectable to a running-in string of pipe for applying a tension force to said sleeve, said tool means and said sleeve having a thread releasably interconnecting said tool means and said sleeve.
Claim 25
Dependent Claim
74 words
In apparatus as defined in claim 13, said tensioning means further including tool means releasably engaged with said sleeve and connectable to a running-in string of pipe for applying a tension force to said sleeve, said tool means and said sleeve having a thread releasably interconnecting said tool means and said sleeve, and including key and a companion keyway between said sleeve and said body for preventing rotation of said sleeve on said body.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |