US3138204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving injectivity of water-solvent mixtures
Assignee: Jersey Production Research Co
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Filing: 1959-07-29
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Granted: 1964-06-23
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:16
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A METHOD OF IMPROVING THE INJECTIVITY OF A WTERSOLVENT MIXTURE INTO AN OIL-CONTAINING FORMATION COMPRISING THE STEPS OF: INJECTING A MIXTURE OF WATER AND A SOLVENT, SAID SOLVENT BEING A HYDROCARBON HAVING FROM 1 TO 4 CARBON ATOMS DOWN AN INJECTION WELL AND INTO THE OIL-CONTAINING FORMATION WITH A VOLUME RATION OF WATER TO SOLVENT SUCH THAT THE RATE OF FLOW OF THE WATER AND THE SOLVENT THROUGH SAID FORMATION ARE SUBSTANTIALLY THE SAME; THEN INJECTING WATER-SOLUBLE GAS INTO THE INJECTION WELL TO THEREBY DISPLACE SUBSTANTIALLY ALL OF THE SOLVENT IN THE WATER-SOLVENT MIXTURE FROM THE VICINITY OF THE INJECTION WELL; AND THEN INJECTING WATER INTO THE INJECTION WELL AND INTO SAID FORMATION TO DISSOLVE THE WATER-SOLUBLE GAS WHEREBY THE INJECTIVITY OF THE FORMATIONIN THE VICINITY OF THE INJECTION WELL TO A WATER-SOLVENT MIXTURE IS SUBSTANTIALLY INCREASED.
Claim 2
Independent Claim
137 words
A METHOD OF IMPROVING THE INJECTIVITY OF A WTERSOLVENT MIXTURE INTO AN OIL-CONTAINING FORMATION COMPRISING THE STEPS OF: INJECTING A MIXTURE OF WATER AND A SOLVENT, SAID SOLVENT BEING A HYDROCARBON HAVING FROM 1 TO 4 CARBON ATOMS DOWN AN INJECTION WELL AND INTO THE OIL-CONTAINING FORMATION WITH A VOLUME RATION OF WATER TO SOLVENT SUCH THAT THE RATE OF FLOW OF THE WATER AND THE SOLVENT THROUGH SAID FORMATION ARE SUBSTANTIALLY THE SAME; THEN INJECTING WATER-SOLUBLE GAS INTO THE INJECTION WELL TO THEREBY DISPLACE SUBSTANTIALLY ALL OF THE SOLVENT IN THE WATER-SOLVENT MIXTURE FROM THE VICINITY OF THE INJECTION WELL; AND THEN INJECTING WATER INTO THE INJECTION WELL AND INTO SAID FORMATION TO DISSOLVE THE WATER-SOLUBLE GAS WHEREBY THE INJECTIVITY OF THE FORMATIONIN THE VICINITY OF THE INJECTION WELL TO A WATER-SOLVENT MIXTURE IS SUBSTANTIALLY INCREASED.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |