Patent US2509471A successfully refreshed from Google Patents.
US3270814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective completion cementing packer
Assignee: Halliburton Co
•
Filing: 1964-01-23
•
Granted: 1966-09-06
•
Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Cecil R Richardson
- 👤 Jr Charles D Manson
- 👤 Eugene E Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:09
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/134; E21B33/12; E21B33/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD FOR ISOLATING AND PRODUCING FROM A FORMATION BY EXPANDING A PACKER ON AW TUBING STRING HAVING A BAFFLE BELOW THE PACKER COMPRISING DROPPING A BALL DOWN THE TUBING TO LODGE ON A SEAT IN THE PACKER, PUMPING FLUID DOWN THE TUBING TO INCREASE THE PRESSURE ON THE BALL, BREAKING THE SEAT TO UNCOVER A FILLING PORT FOR EXPANDING THE PACKER ND TO ALLOW THE BALL TO DROP TO THE BAFFLE, PUMPING FLUID DOWN THE TUBING AND INTO THE PACKER THROUGH THE FILLING PORT, CLOSING THE FILLING PORT IN RESPONSE TO FLUID PRESSURE IN THE PACKER WHEN THE PACKER IS EXPANDED, PUMPING FLUID DOWN THE TUBING TO INCREASE THE PRESSURE ON THE BALL TO BREAK THE BAFFLE AND PUMP THE BALL OUT OF THE TUBING STRING, PUMPING CEMENT DOWN THE TUBING TO CEMENT THE PACKER IN THE WELL, AND OPENING PRODUCTION PORTS IN THE PACKER COMMUNICATING BETWEEN THE FORMATION AND THE TUBING.
Claim 2
Independent Claim
153 words
A METHOD FOR ISOLATING AND PRODUCING FROM A FORMATION BY EXPANDING A PACKER ON AW TUBING STRING HAVING A BAFFLE BELOW THE PACKER COMPRISING DROPPING A BALL DOWN THE TUBING TO LODGE ON A SEAT IN THE PACKER, PUMPING FLUID DOWN THE TUBING TO INCREASE THE PRESSURE ON THE BALL, BREAKING THE SEAT TO UNCOVER A FILLING PORT FOR EXPANDING THE PACKER ND TO ALLOW THE BALL TO DROP TO THE BAFFLE, PUMPING FLUID DOWN THE TUBING AND INTO THE PACKER THROUGH THE FILLING PORT, CLOSING THE FILLING PORT IN RESPONSE TO FLUID PRESSURE IN THE PACKER WHEN THE PACKER IS EXPANDED, PUMPING FLUID DOWN THE TUBING TO INCREASE THE PRESSURE ON THE BALL TO BREAK THE BAFFLE AND PUMP THE BALL OUT OF THE TUBING STRING, PUMPING CEMENT DOWN THE TUBING TO CEMENT THE PACKER IN THE WELL, AND OPENING PRODUCTION PORTS IN THE PACKER COMMUNICATING BETWEEN THE FORMATION AND THE TUBING.
References Cited (Backward Citations)
US2029380A
Cited
US2177601A
Cited
US2707997A
Cited
US3035639A
Cited
US3053322A
Cited
US3136364A
Cited
US3194312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |