Patent US3182726A successfully refreshed from Google Patents.
US3182726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple zone selective flow control apparatus
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1962-12-26
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Granted: 1965-05-11
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Dewey C Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:28
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN APPARATUS TO BE DISPOSED IN A WELL BORE HAVING UPPER AND LOWER PRODUCING ZONES AND IN WHICH ONE ZONE IS TO BE PRODUCED THROUGH A TUBULAR STRING DISPOSED IN THE WELL BORE AND THE OTHER ZONE THROUGH THE ANNULUS AROUND THE TUBULAR STRING: TUBULAR BODY MEANS ADAPTED TO FORM PART OF THE TUBULAR STRING; MANDREL MEANS MOVABLY MOUNTED IN SAID BODY MEANS; SAID MANDREL MEANS AND BODY MEANS PROVIDING SEPARATE PASSAGES ADAPTED TO CONDUCT FLUIDS FROM THE UPPER AND LOWER ZONES TO THE INTERIOR OF THE TUBULAR STRING ABOVE SAID BODY MEANS AND TO THE ANNULUS AROUND THE TUBULAR STRING ABOVE SAID BODY MEANS; COENGAGEABLE MEANS ON SAID BODY MEANS AND MANDREL MEANS FOR LOCATING SAID MANDREL MEANS IN A FIRST POSITION IN SAID BODY MEANS WHEREIN SAID PASSAGES CONDUCT FLUID SEPARATELY FROM THE LOWER ZONE TO SAID INTERIOR OF THE
Claim 2
Dependent Claim
142 words
IN APPARATUS TO BE DISPOSED IN A WELL BORE HAVING UPPER AND LOWER PRODUCING ZONES AND IN WHICH ONE ZONE IS TO BE PRODUCED THROUGH A TUBULAR STRING DISPOSED IN THE WELL BORE AND THE OTHER ZONE THROUGH THE ANNULUS AROUND THE TUBULAR STRING: TUBULAR BODY MEANS ADAPTED TO FORM PART OF THE TUBULAR STRING; MANDREL MEANS MOVABLY MOUNTED IN SAID BODY MEANS; SAID MANDREL MEANS AND BODY MEANS PROVIDING SEPARATE PASSAGES ADAPTED TO CONDUCT FLUIDS FROM THE UPPER AND LOWER ZONES TO THE INTERIOR OF THE TUBULAR STRING ABOVE SAID BODY MEANS AND TO THE ANNULUS AROUND THE TUBULAR STRING ABOVE SAID BODY MEANS; COENGAGEABLE MEANS ON SAID BODY MEANS AND MANDREL MEANS FOR LOCATING SAID MANDREL MEANS IN A FIRST POSITION IN SAID BODY MEANS WHEREIN SAID PASSAGES CONDUCT FLUID SEPARATELY FROM THE LOWER ZONE TO SAID INTERIOR OF THE
References Cited (Backward Citations)
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Cited
US2766831A
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US2649916A
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US2717041A
Cited
US2840167A
Cited
US3008522A
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US2936832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |