US3199592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing fresh water or petroleum from underground reservoir formations and to prevent coning
Assignee: Individual
•
Filing: 1963-09-20
•
Granted: 1965-08-10
•
Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Charles E Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A METHOD OF REMOVING A LIGHTER LIQUID FROM AN UNDERGROUND RESERVOIR FORMATION IN WHICH SAID LIGHTER LIQUID OVERLIES A HEAVIER, GRAVITY-SEGREGATED, LESS DESIRABLE LIQUID, WITH A NORMAL STATIC INTERFACE BETWEEN SAID LIGHTER AND HEAVIER LIQUIDS, COMPRISING: PROVIDING A WELL WHICH PENETRATES THE RESERVOIR SATURATED BY THE LIGHTER LIQUID; DIVIDING SAID WELL INTO LOWER INTERMEDIATE, AND MAIN UPPER CHAMBERS, BY SEALING SAID WELL AT TWO SPACED LOCATIONS, THE LOWER OF WHICH IS NEAR THE BOTTOM OF THE WELL AND ABOVE THE SAID STATIC INTERFACE; CIRCULATING A PORTION OF LIGHTER LIQUID INTO SAID INTERMEDIATE CHAMBER OF THE WELL AND THENCE INTO SAID LOWER WELL CHAMBER, AND INJECTING SAID PORTION OF LIGHTER LIQUID FROM SAID LOWER WELL CHAMBER DOWNWARDLY FROM THE WELL IN SUFFICIENT QUANTITY TO DEPRESS THE UNDERLYING HEAVIER LIQUID IN THE REGION OF THE WELL; CIRCULATING LIGHTER LIQUID FROM THE RESERVOIR FORMATION INTO THE MAIN UPPER CHAMBER OF THE WELL AND REMOVING SUCH LIGHTER LIQUID TO THE SURFACE; SAID PORTION OF LIGHTER FLUID INJECTED DOWNWARDLY FROM THE WELL COMPRISING UP TO ABOUT 10% OF THE VOLUME OF LIGHTER FLUID REMOVED TO THE SURFACE.
Claim 2
Independent Claim
182 words
A METHOD OF REMOVING A LIGHTER LIQUID FROM AN UNDERGROUND RESERVOIR FORMATION IN WHICH SAID LIGHTER LIQUID OVERLIES A HEAVIER, GRAVITY-SEGREGATED, LESS DESIRABLE LIQUID, WITH A NORMAL STATIC INTERFACE BETWEEN SAID LIGHTER AND HEAVIER LIQUIDS, COMPRISING: PROVIDING A WELL WHICH PENETRATES THE RESERVOIR SATURATED BY THE LIGHTER LIQUID; DIVIDING SAID WELL INTO LOWER INTERMEDIATE, AND MAIN UPPER CHAMBERS, BY SEALING SAID WELL AT TWO SPACED LOCATIONS, THE LOWER OF WHICH IS NEAR THE BOTTOM OF THE WELL AND ABOVE THE SAID STATIC INTERFACE; CIRCULATING A PORTION OF LIGHTER LIQUID INTO SAID INTERMEDIATE CHAMBER OF THE WELL AND THENCE INTO SAID LOWER WELL CHAMBER, AND INJECTING SAID PORTION OF LIGHTER LIQUID FROM SAID LOWER WELL CHAMBER DOWNWARDLY FROM THE WELL IN SUFFICIENT QUANTITY TO DEPRESS THE UNDERLYING HEAVIER LIQUID IN THE REGION OF THE WELL; CIRCULATING LIGHTER LIQUID FROM THE RESERVOIR FORMATION INTO THE MAIN UPPER CHAMBER OF THE WELL AND REMOVING SUCH LIGHTER LIQUID TO THE SURFACE; SAID PORTION OF LIGHTER FLUID INJECTED DOWNWARDLY FROM THE WELL COMPRISING UP TO ABOUT 10% OF THE VOLUME OF LIGHTER FLUID REMOVED TO THE SURFACE.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |