US3112796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically actuated well packers
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1961-03-30
•
Granted: 1963-12-03
•
Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 William D Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:10
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN APPARATUS ADAPTED TO BE SET IN A WELL BORE: A BODY; NORMALLY RETRACTED MEANS DISPOSED ABOUT SAID BODY AND ADAPTED TO BE EXPANDED OUTWARDLY INTO ENGAGEMENT WITH THE WALL OF THE WELL BORE; UPPER ACTUATING MEANS ENGAGING AN UPPER PORTION OF SAID NORMALLY RETRACTED MEANS AND COMPRISING AN UPPER SETTING SLEEVE SURROUNDING SAID BODY; LOWER ACTUATING MEANS ENGAGING A LOWER PORTION OF SAID NORMALLY RETRACTED MEANS AND COMPRISING A LOWER SETTING SLEEVE; HYDRAULICALLY OPERABLE MEANS ON SAID SLEEVES FOR SHIFTING SAID UPPER AND LOWER ACTUATING MEANS RELATIVE TO EACH OTHER TO EXPAND SAID NORMALLY RETRACTED MEANS, SAID HYDRAULICALLY OPERABLE MEANS ON EACH SLEEVE BEING SLIDABLE ALONG THE OTHER SLEEVE; AND MEANS FOR ENABLING FLUID PRESSURE TO ACT ON SAID HYDRAULICALLY OPERABLE MEANS.
Claim 2
Dependent Claim
123 words
IN APPARATUS ADAPTED TO BE SET IN A WELL BORE: A BODY; NORMALLY RETRACTED MEANS DISPOSED ABOUT SAID BODY AND ADAPTED TO BE EXPANDED OUTWARDLY INTO ENGAGEMENT WITH THE WALL OF THE WELL BORE; UPPER ACTUATING MEANS ENGAGING AN UPPER PORTION OF SAID NORMALLY RETRACTED MEANS AND COMPRISING AN UPPER SETTING SLEEVE SURROUNDING SAID BODY; LOWER ACTUATING MEANS ENGAGING A LOWER PORTION OF SAID NORMALLY RETRACTED MEANS AND COMPRISING A LOWER SETTING SLEEVE; HYDRAULICALLY OPERABLE MEANS ON SAID SLEEVES FOR SHIFTING SAID UPPER AND LOWER ACTUATING MEANS RELATIVE TO EACH OTHER TO EXPAND SAID NORMALLY RETRACTED MEANS, SAID HYDRAULICALLY OPERABLE MEANS ON EACH SLEEVE BEING SLIDABLE ALONG THE OTHER SLEEVE; AND MEANS FOR ENABLING FLUID PRESSURE TO ACT ON SAID HYDRAULICALLY OPERABLE MEANS.
References Cited (Backward Citations)
US2735497A
Cited
US2507270A
Cited
US2695064A
Cited
US2739651A
Cited
US2765853A
Cited
US2795281A
Cited
US3008523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |