US4928762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrievable bridge plug and packer
Assignee: Halliburton Co
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Filing: 1989-02-13
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Granted: 1990-05-29
•
Expires: 2009-02-13
Abstract
Abstract A retrievable bridge plug and packer apparatus. The tool includes a packer settable by right-hand rotation and vertical manipulation of the tool string and a bridge plug also settable by right-hand rotation and vertical manipulation of the tool string. A disabling tool is provided to disable the packer during setting of the bridge plug so that the packer is not prematurely set. After setting of the bridge plug below the formation, the packer and disabling tool may be disengaged from the bridge plug. At this point, the disabling tool is disengaged so that the packer may be set above the formation. The packer is unset by pulling on the tool string, and the packer and disabling tool may be reconnected to the bridge plug. Again lifting on the tool string unsets the bridge plug so that the apparatus may be retrieved or reused. A method of treating a well formation is also disclosed.
Inventors
- 👤 Kevin R. Mamke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:06
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/004; E21B23/006; E21B23/06; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1291; E21B33/1292; E21B33/1295; E21B33/12955; E21B33/13; E21B33/134
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
104 words
An apparatus for use in a well bore, said apparatus comprising: plug means for sealingly engaging said well bore when in a set position; plug setting means for setting said plug means by applying torque in one direction to a portion thereof; packer means, disconnectable from said plug means, for sealingly engaging said well bore when in a set position at a location spaced from said plug means; means for disconnecting said packer means from said plug means after setting of said plug means; and packer setting means for setting said packer means by applying torque in said one direction to a portion thereof.
Claim 2
Independent Claim
104 words
An apparatus for use in a well bore, said apparatus comprising: plug means for sealingly engaging said well bore when in a set position; plug setting means for setting said plug means by applying torque in one direction to a portion thereof; packer means, disconnectable from said plug means, for sealingly engaging said well bore when in a set position at a location spaced from said plug means; means for disconnecting said packer means from said plug means after setting of said plug means; and packer setting means for setting said packer means by applying torque in said one direction to a portion thereof.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 further comprising disabling means for disabling said packer setting means while said plug means is being set.
Claim 4
Dependent Claim
43 words
The apparatus of claim 2 wherein said disabling means comprises upper and lower engaging means for preventing relative rotation therebetween when in a packer disabling position, said upper and lower engaging means being spaced from one another when in a packer setting position.
Claim 5
Dependent Claim
43 words
The apparatus of claim 3 wherein: said packer means comprises mandrel means for extending from said packer means and into said upper and lower engaging means; and further comprising means for preventing relative rotation between said mandrel means and said lower engaging means.
Claim 6
Dependent Claim
48 words
The apparatus of claim 4 wherein said means for preventing relative rotation comprises: one of said mandrel means and said lower engaging means defining a slot thereon; and the other of said mandrel means and said lower engaging means having a pin extending therefrom and into said slot.
Claim 7
Dependent Claim
84 words
The apparatus of claim 3 wherein said packer means comprises mandrel means for extending from said packer means and into said upper and lower engaging means, and further comprising: J-slot means on one of said mandrel means and lower engaging means; and J-slot engaging means on the other of said mandrel means and lower engaging means for engaging said J-slot means; whereby, said lower engaging means and said upper engaging means are relatively moved between said packer disabling position and said packer setting position.
Claim 8
Dependent Claim
49 words
The apparatus of claim 3 further comprising drag means on said upper and lower engaging means for frictionally engaging said well bore and holding said upper and lower engaging means relatively stationary with respect to said packer means during at least a portion of the operation of said apparatus.
Claim 9
Dependent Claim
128 words
A downhole tool comprising: a packer attachable to a tool string and including packer setting means for setting said packer in a well bore; a plug releasably connected to said packer and including plug setting means for setting said plug in said well bore; means for disabling said packer setting means during setting of said plug and reengaging said packer setting means for subsequent setting of said packer, wherein said packer setting means is actuated at least in part in response to rotation of said tool string in a single direction and said plug setting means is actuated at least in part in response to rotation of said tool string in said single direction; and means for releasing said plug from said packer and said means for disabling.
Claim 10
Dependent Claim
128 words
A downhole tool comprising: a packer attachable to a tool string and including packer setting means for setting said packer in a well bore; a plug releasably connected to said packer and including plug setting means for setting said plug in said well bore; means for disabling said packer setting means during setting of said plug and reengaging said packer setting means for subsequent setting of said packer, wherein said packer setting means is actuated at least in part in response to rotation of said tool string in a single direction and said plug setting means is actuated at least in part in response to rotation of said tool string in said single direction; and means for releasing said plug from said packer and said means for disabling.
Claim 11
Dependent Claim
22 words
The apparatus of claim 8 wherein said single direction is to the right when viewed from the top of said well bore.
Claim 12
Independent Claim
128 words
A method of treating a well formation comprising the steps of: positioning a tool on a tool string in a well bore, said tool comprising a bridge plug and a packer above said bridge plug; setting said bridge plug into sealing engagement with said well bore below said formation by applying torque in a single direction to said tool string; during said step of setting said bridge plug, disabling said packer so that the packer cannot be prematurely set; after setting of said bridge plug, re-enabling said packer and disconnecting said packer from said bridge plug; and setting said packer into sealing engagement with said well bore above said bridge plug by applying torque to said tool string in the same direction used for setting said bridge plug.
Claim 13
Independent Claim
128 words
A method of treating a well formation comprising the steps of: positioning a tool on a tool string in a well bore, said tool comprising a bridge plug and a packer above said bridge plug; setting said bridge plug into sealing engagement with said well bore below said formation by applying torque in a single direction to said tool string; during said step of setting said bridge plug, disabling said packer so that the packer cannot be prematurely set; after setting of said bridge plug, re-enabling said packer and disconnecting said packer from said bridge plug; and setting said packer into sealing engagement with said well bore above said bridge plug by applying torque to said tool string in the same direction used for setting said bridge plug.
Claim 14
Dependent Claim
33 words
The method of claim 10 further comprising the steps of: unsetting said packer from said well bore; re-connecting said packer to said bridge plug; and unsetting said bridge plug from said well bore.
Claim 15
Independent Claim
206 words
An apparatus for use in a well bore, said apparatus comprising: plug means for sealingly engaging said well bore when in a set position; plug setting means for setting said plug means by applying torque in one direction to a portion thereof; packer means for sealingly engaging said well bore when in a set portion at a location spaced from said plug means; packer setting means for setting said packer means by applying torque in one direction to a portion thereof; and disabling means for disabling said packer setting means when said plug means is being set, said disabling means comprising upper and lower engaging means for preventing relative rotation therebetween when in a packer disabling position, said upper and lower engaging means being spaced from one another when in a packer setting position, and wherein: said upper engaging means is characterized by an upper disabling sleeve connected to said packer means and having upper disabling teeth thereon; and said lower engaging means is characterized by a lower disabling sleeve connected to said packer means and having lower disabling teeth thereon engaged with said upper disabling teeth when in said packer disabling position and spaced from said upper disabling teeth when in said packer setting position.
Claim 16
Independent Claim
206 words
An apparatus for use in a well bore, said apparatus comprising: plug means for sealingly engaging said well bore when in a set position; plug setting means for setting said plug means by applying torque in one direction to a portion thereof; packer means for sealingly engaging said well bore when in a set portion at a location spaced from said plug means; packer setting means for setting said packer means by applying torque in one direction to a portion thereof; and disabling means for disabling said packer setting means when said plug means is being set, said disabling means comprising upper and lower engaging means for preventing relative rotation therebetween when in a packer disabling position, said upper and lower engaging means being spaced from one another when in a packer setting position, and wherein: said upper engaging means is characterized by an upper disabling sleeve connected to said packer means and having upper disabling teeth thereon; and said lower engaging means is characterized by a lower disabling sleeve connected to said packer means and having lower disabling teeth thereon engaged with said upper disabling teeth when in said packer disabling position and spaced from said upper disabling teeth when in said packer setting position.
Claim 17
Dependent Claim
173 words
A downhole tool comprising: a packer attachable to a tool string and including packer setting means for setting said packer in a well bore; a plug connected to said packer and including plug setting means for setting said plug in said well bore; and means for disabling said packer setting means during setting of said plug and re-engaging said packer setting means for subsequent setting of said packer, said means for disabling comprising: a mandrel defining a slot therein, said mandrel being connected to said packer; a first sleeve with downwardly extending teeth thereon; a second sleeve with upwardly extending teeth thereon for engaging said downwardly extending teeth when in a first position such that relative rotation between said first and second sleeves is prevented and being relatively movable to a second position wherein said upwardly extending teeth are disengaged from said downwardly extending teeth; and a pin on said second sleeve and extending therefrom for engaging said slot in said mandrel for preventing relative rotation between said mandrel and said second sleeve.
Claim 18
Dependent Claim
173 words
A downhole tool comprising: a packer attachable to a tool string and including packer setting means for setting said packer in a well bore; a plug connected to said packer and including plug setting means for setting said plug in said well bore; and means for disabling said packer setting means during setting of said plug and re-engaging said packer setting means for subsequent setting of said packer, said means for disabling comprising: a mandrel defining a slot therein, said mandrel being connected to said packer; a first sleeve with downwardly extending teeth thereon; a second sleeve with upwardly extending teeth thereon for engaging said downwardly extending teeth when in a first position such that relative rotation between said first and second sleeves is prevented and being relatively movable to a second position wherein said upwardly extending teeth are disengaged from said downwardly extending teeth; and a pin on said second sleeve and extending therefrom for engaging said slot in said mandrel for preventing relative rotation between said mandrel and said second sleeve.
Claim 19
Dependent Claim
38 words
The apparatus of claim 13 wherein said mandrel defines a J-slot therein; and further comprising J-slot engaging means on said second sleeve for engaging said J-slot, whereby said second sleeve is guided between said first and second positions.
Claim 20
Dependent Claim
50 words
The apparatus of claim 14 wherein: said J-slot and J-slot engaging means hold said first and second sleeves in said engaged position during setting of said plug; and said J-slot and said J-slot engaging means hold said first and second sleeves in said disengaged position after setting of said plug.
Claim 21
Dependent Claim
26 words
The apparatus of claim 14 further comprising a drag block on said second sleeve for holding said second sleeve relatively stationary with respect to said mandrel.
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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) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |