Patent US3147803A successfully refreshed from Google Patents.
US3147803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of secondary recovery of hydrocarbons
Assignee: ConocoPhillips Co
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Filing: 1961-05-15
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Granted: 1964-09-08
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Philip W Reed
- 👤 William E Brigham
- 👤 John N Dew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:24
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/164; E21B43/166; E21B43/168; Y; Y02; Y02P; Y02P90/00; Y02P90/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A METHOD FOR THE RECOVERY OF HYDROCARBONS FROM A SUBTERRANEAN RESERVOIR OF STRATIFIED PERMEABILITY HAVING A FIRST STRATUM OF GREATER PERMEABILITY THAN A SECOND STRATUM ADJACENT THERETO AND BEING TRAVERSED BY AT LEAST ONE INJECTION WELL AND RECOVERY WELL WHICH COMPRISES: (A) INJECTING A HYDROCARBON MISCIBLE LIQUID THROUGH SAID INJECTION WELL INTO SAID FIRST STRATUM AND SAID SECOND STRATUM AT SUBSTANTIAL PRESSURE WHEREBY ESSENTIALLY ALL HYDROCARBONS CONTACTED IN SAID FIRST STRATUM AND A PORTION OF SAID HYDROCARBONS IN SAID SECOND STRATUM ARE DISPLACED AND PRODUCED THROUGH SAID RECOVERY WELL; (B) INJECTING A GASEOUS HYDROCARBON THROUGH SAID INJECTION WELL INTO SAID FIRST STRATUM AND SAID SECOND STRATUM AT SUBSTANTIAL PRESSURE WHEREBY SAID HYDRODISPLACED FROM SAID FIRST STRATUM AND PRODUCED THROUGH SAID RECOVERY WELL; (C) SUSPENDING THE INJECTION OF SAID GASEOUS HYDROCARBON AFTER SUBSTANTIALLY DISPLACING SAID HYDROCARBON MISCIBLE LIQUID FROM SAID FIRST STRATUM; (D) DEPRESSURING SAID RESERVOIR THROUGH SAID RECOVERY WELL WHEREBY SAID HYDROCARBONS, SAID HYDROCARBON MISCIBLE LIQUID, AND A LARGE PORTION OF SAID GASEOUS HYDROCARBON ARE PRODUCED FROM SAID FIRST STRATUM AND A PORTION OF SAID HYDROCARBONS FROM SAID SECOND STRATUM ARE DISPLACED INTO SAID FIRST STRATUM; (E) CONDUCTING A PLURALITY OF THIS SEQUENCE OF OPERATIONS WHEREBY SAID HYDROCARBONS OF SAID SECOND STRATUM ARE DISPLACED AND PRODUCED THROUGH SAID FIRST STRATUM AND SAID RECOVERY WELL.
Claim 2
Independent Claim
214 words
A METHOD FOR THE RECOVERY OF HYDROCARBONS FROM A SUBTERRANEAN RESERVOIR OF STRATIFIED PERMEABILITY HAVING A FIRST STRATUM OF GREATER PERMEABILITY THAN A SECOND STRATUM ADJACENT THERETO AND BEING TRAVERSED BY AT LEAST ONE INJECTION WELL AND RECOVERY WELL WHICH COMPRISES: (A) INJECTING A HYDROCARBON MISCIBLE LIQUID THROUGH SAID INJECTION WELL INTO SAID FIRST STRATUM AND SAID SECOND STRATUM AT SUBSTANTIAL PRESSURE WHEREBY ESSENTIALLY ALL HYDROCARBONS CONTACTED IN SAID FIRST STRATUM AND A PORTION OF SAID HYDROCARBONS IN SAID SECOND STRATUM ARE DISPLACED AND PRODUCED THROUGH SAID RECOVERY WELL; (B) INJECTING A GASEOUS HYDROCARBON THROUGH SAID INJECTION WELL INTO SAID FIRST STRATUM AND SAID SECOND STRATUM AT SUBSTANTIAL PRESSURE WHEREBY SAID HYDRODISPLACED FROM SAID FIRST STRATUM AND PRODUCED THROUGH SAID RECOVERY WELL; (C) SUSPENDING THE INJECTION OF SAID GASEOUS HYDROCARBON AFTER SUBSTANTIALLY DISPLACING SAID HYDROCARBON MISCIBLE LIQUID FROM SAID FIRST STRATUM; (D) DEPRESSURING SAID RESERVOIR THROUGH SAID RECOVERY WELL WHEREBY SAID HYDROCARBONS, SAID HYDROCARBON MISCIBLE LIQUID, AND A LARGE PORTION OF SAID GASEOUS HYDROCARBON ARE PRODUCED FROM SAID FIRST STRATUM AND A PORTION OF SAID HYDROCARBONS FROM SAID SECOND STRATUM ARE DISPLACED INTO SAID FIRST STRATUM; (E) CONDUCTING A PLURALITY OF THIS SEQUENCE OF OPERATIONS WHEREBY SAID HYDROCARBONS OF SAID SECOND STRATUM ARE DISPLACED AND PRODUCED THROUGH SAID FIRST STRATUM AND SAID RECOVERY WELL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |