US3195634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fracturing process
Assignee: Individual
•
Filing: 1962-08-09
•
Granted: 1965-07-20
•
Expires: 1982-08-09
Abstract
No abstract record available.
Inventors
- 👤 Hill William Armistead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/2605; E21B37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
PROCESS OF TREATING FORMATION CONTAINING A DEPOSIT CHOOSEN FROM THE GROUP CONSISTING OF OIL AND GAS WHICH PROCESS COMPRISES THE STEPS OF (A) FORMING A LIQUID-LIQUID MIXTURE COMPRISING LIQUID CARBON DIOXIDE AND WATER (B) INJECTING SAID MIXTURE AT SUCH PRESSURE, AND BELOW A TEMPERATURE SUFFICIENT TO MAINTAIN SAID CARBON DIOXIDE IN A LIQUID STATE INTO A WALL WHICH PENETRATES FROM THE SURFACE INTO AN EARTH FORMATION CONTAINING DEPOSITS CHOSEN FROM THE GROUP CONSISTING OF OIL AND GAS, AND (C) FRACTURING SAID FORMATION WITH SAID MIXTURE, (D) AND THEN RELEASING THE PRESSURE ON SAID FORMATION AND DISCHARGING A MIXTURE COMPRISING GASEOUS CARBON DIOXIDE, SUBSTANTIALLY ALL OF THE WATER PROVIDED IN SAID LIQUID-LIQUID MIXTURE, AND WLL DEBRIS FROM SAID EARTH FORMATION INTO THE WELL AND FROM SAID WELL AT THE SURFACE, AND WHEREIN THE AMOUNT OF LIQUID CARBON DIOXIDE ADMIXED WITH THE WATER PROVIDES A CO2 GAS-WATEER RATIO, MEASURED
Claim 2
Dependent Claim
147 words
PROCESS OF TREATING FORMATION CONTAINING A DEPOSIT CHOOSEN FROM THE GROUP CONSISTING OF OIL AND GAS WHICH PROCESS COMPRISES THE STEPS OF (A) FORMING A LIQUID-LIQUID MIXTURE COMPRISING LIQUID CARBON DIOXIDE AND WATER (B) INJECTING SAID MIXTURE AT SUCH PRESSURE, AND BELOW A TEMPERATURE SUFFICIENT TO MAINTAIN SAID CARBON DIOXIDE IN A LIQUID STATE INTO A WALL WHICH PENETRATES FROM THE SURFACE INTO AN EARTH FORMATION CONTAINING DEPOSITS CHOSEN FROM THE GROUP CONSISTING OF OIL AND GAS, AND (C) FRACTURING SAID FORMATION WITH SAID MIXTURE, (D) AND THEN RELEASING THE PRESSURE ON SAID FORMATION AND DISCHARGING A MIXTURE COMPRISING GASEOUS CARBON DIOXIDE, SUBSTANTIALLY ALL OF THE WATER PROVIDED IN SAID LIQUID-LIQUID MIXTURE, AND WLL DEBRIS FROM SAID EARTH FORMATION INTO THE WELL AND FROM SAID WELL AT THE SURFACE, AND WHEREIN THE AMOUNT OF LIQUID CARBON DIOXIDE ADMIXED WITH THE WATER PROVIDES A CO2 GAS-WATEER RATIO, MEASURED
References Cited (Backward Citations)
US2884067A
Cited
US2999812A
Cited
US2964109A
Cited
US3075918A
Cited
US3063499A
Cited
US3090439A
Cited
US3108636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |