Patent US3228470A successfully refreshed from Google Patents.
US3228470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mitigating the production of undesirable gas or water in oil wells
Assignee: Gulf Research and Development Co
•
Filing: 1962-12-31
•
Granted: 1966-01-11
•
Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Papaila John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:26
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF PREVENTING ENTRY OF A FOREIGN FLUID INTO A WELL PRODUCING A DESIRED FLUID FROM A SUBTERRANEAN ROCK FORMATION WHICH COMPRISES FRACTURING THE FORMATION ADJACENT THE WELL IN A REGION INTERMEDIATE THE SOURCE OF THE FOREIGN FLUID AND THE SOURCE OF THE DESIRED FLUID, DEPOSITING A FLUID-LOSS-REDUCING AGENT ON THE FACES OF SAID FRACTURE THEREBY RESTRICITING FLUID FLOW FROM SAID FRACTURE TO THE FORMATION ABUTTING THE FACES OF SAID FRACTURE, INJECTING A PROPPING AGENT INTO SAID FRACTURE, PROVIDING IN SAID WELL FROM THE EARTH''S SURFACE TO SAID FRACTURE A FIRST FLOW CHANNEL, SAID FIRST FLOW CHANNEL BEING ISOLATED FROM A SECOND FLOW CHANNEL THROUGH WHICH THE DESIRED FLUID IS TO BE PRODUCED, AND SUBSEQUENTLY DURING PRODUCTION OF THE DESIRED FLUID THROUGH SAID SECOND FLOW CHANNEL CONTINUOUSLY INJECT-
Claim 2
Independent Claim
129 words
A METHOD OF PREVENTING ENTRY OF A FOREIGN FLUID INTO A WELL PRODUCING A DESIRED FLUID FROM A SUBTERRANEAN ROCK FORMATION WHICH COMPRISES FRACTURING THE FORMATION ADJACENT THE WELL IN A REGION INTERMEDIATE THE SOURCE OF THE FOREIGN FLUID AND THE SOURCE OF THE DESIRED FLUID, DEPOSITING A FLUID-LOSS-REDUCING AGENT ON THE FACES OF SAID FRACTURE THEREBY RESTRICITING FLUID FLOW FROM SAID FRACTURE TO THE FORMATION ABUTTING THE FACES OF SAID FRACTURE, INJECTING A PROPPING AGENT INTO SAID FRACTURE, PROVIDING IN SAID WELL FROM THE EARTH''S SURFACE TO SAID FRACTURE A FIRST FLOW CHANNEL, SAID FIRST FLOW CHANNEL BEING ISOLATED FROM A SECOND FLOW CHANNEL THROUGH WHICH THE DESIRED FLUID IS TO BE PRODUCED, AND SUBSEQUENTLY DURING PRODUCTION OF THE DESIRED FLUID THROUGH SAID SECOND FLOW CHANNEL CONTINUOUSLY INJECT-
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |