Patent US3303880A successfully refreshed from Google Patents.
US3303880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for assisting in the injection of well treating fluids
Assignee: Jackson Memorial Hospital
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Filing: 1963-09-03
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Granted: 1967-02-14
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Lyle B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:07
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
FLUID INJECTION APPARATUS INSERTABLE IN A WELL BORE AND OPERABLE TO GENERATE A VOLUME OF GAS IN THE WELL BORE COMPRISING: AN ELONGATED ASSEMBLY HAVING A CENTRAL FLOW PASAGE FOR INJECTION OF SAID FLUID, AN OUTLET ASSEMBLY COMMUNICATING SAID CENTRAL FLOW PASSAGE WITH SAID WELL BORE, A PROPELLANT CONTAINER BELOW SAID OUTLET ASSEMBLY COMPRISING AN ELONGATED TUBULAR CASE FILLED WITH SOLID MONOPROPELLANT, FIRING MEANS, IGNITOR MEANS OPERABLE BY SAID FIRING MEANS FOR IGNITING SAID PROPELLANT, AND MEANS AT THE LOWER END OF SAID ELONGATED ASSEMBLY FOR LIBERATING GAS GENERATED BY SAID PROPELLANT UPON IGNITION.
Claim 2
Dependent Claim
94 words
FLUID INJECTION APPARATUS INSERTABLE IN A WELL BORE AND OPERABLE TO GENERATE A VOLUME OF GAS IN THE WELL BORE COMPRISING: AN ELONGATED ASSEMBLY HAVING A CENTRAL FLOW PASAGE FOR INJECTION OF SAID FLUID, AN OUTLET ASSEMBLY COMMUNICATING SAID CENTRAL FLOW PASSAGE WITH SAID WELL BORE, A PROPELLANT CONTAINER BELOW SAID OUTLET ASSEMBLY COMPRISING AN ELONGATED TUBULAR CASE FILLED WITH SOLID MONOPROPELLANT, FIRING MEANS, IGNITOR MEANS OPERABLE BY SAID FIRING MEANS FOR IGNITING SAID PROPELLANT, AND MEANS AT THE LOWER END OF SAID ELONGATED ASSEMBLY FOR LIBERATING GAS GENERATED BY SAID PROPELLANT UPON IGNITION.
Claim 3
Independent Claim
65 words
THE METHOD OF FRACTURING EARTH FORMATION INTO WHICH OR THROUGH WHICH A WELL HAS BEEN DRILLED COMPRISING; INJECTING FLUID UNDER PRESSURE INTO SAID WELL TO FORCE THE SAME INTO SAID FORMATION TO FRACTURE THE SAME, LIBERATING IN SAID TREATING FLUID ADJACENT SAID FORMATION A LARGE VOLUME OF GAS TO FORCE THE TREATING FLUID INTO SAID FORMATION, AND REPONSIVE TO THE LIBERATION OF SAID GAS RELEASING
Claim 4
Independent Claim
65 words
THE METHOD OF FRACTURING EARTH FORMATION INTO WHICH OR THROUGH WHICH A WELL HAS BEEN DRILLED COMPRISING; INJECTING FLUID UNDER PRESSURE INTO SAID WELL TO FORCE THE SAME INTO SAID FORMATION TO FRACTURE THE SAME, LIBERATING IN SAID TREATING FLUID ADJACENT SAID FORMATION A LARGE VOLUME OF GAS TO FORCE THE TREATING FLUID INTO SAID FORMATION, AND REPONSIVE TO THE LIBERATION OF SAID GAS RELEASING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |