US3237690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming an impermeable barrier in subsurface formations
Assignee: Gulf Research and Development Co
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Filing: 1962-10-01
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Granted: 1966-03-01
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Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Jacy C Karp
- 👤 Marusov Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:17
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138; B; B62; B62D; B62D63/00; B62D63/06; B62D63/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A METHOD OF CREATING A BARRIER FOR REDUCING THE FLOW OF FLUID OTHER THAN OIL INTO A WELL PENETRATING A FORMATION HAVING AN OIL ZONE ADJACENT A ZONE OF FLUID OTHER THAN OIL COMPRISING FORMING A SUBSTANTIALLY HORIZONTAL FRACTURE EXTENDING INTO THE OIL ZONE FROM THE WELL, DISPLACING THROUGH THE FACES OF THE FRACTURE A MATERIAL INSOLUBLE IN OIL AND IN WATER TO REDUCE THE PERMEABILITY OF THE FORMATION ADJACENT THE FRACTURE, THEREAFTER DISPLACING A SLURRY OF PORTLAND CEMENT INTO THE FRACTURE, AND HOLDING THE SLURRY OF PORTLAND CEMENT IN THE FRACTURE UNTIL THE PORTLAND CEMENTS SETS.
Claim 2
Independent Claim
97 words
A METHOD OF CREATING A BARRIER FOR REDUCING THE FLOW OF FLUID OTHER THAN OIL INTO A WELL PENETRATING A FORMATION HAVING AN OIL ZONE ADJACENT A ZONE OF FLUID OTHER THAN OIL COMPRISING FORMING A SUBSTANTIALLY HORIZONTAL FRACTURE EXTENDING INTO THE OIL ZONE FROM THE WELL, DISPLACING THROUGH THE FACES OF THE FRACTURE A MATERIAL INSOLUBLE IN OIL AND IN WATER TO REDUCE THE PERMEABILITY OF THE FORMATION ADJACENT THE FRACTURE, THEREAFTER DISPLACING A SLURRY OF PORTLAND CEMENT INTO THE FRACTURE, AND HOLDING THE SLURRY OF PORTLAND CEMENT IN THE FRACTURE UNTIL THE PORTLAND CEMENTS SETS.
Claim 3
Dependent Claim
85 words
A THREE-LAYER BARRIER TO THE FLOW OF FLUID OTHER THAN OIL INTO AN OIL WELL FROM A ZONE ADJACENT TO THE OIL ZONE WHICH COMPRISES A LAYER OF SUBSTANTIALLY FULLY CURED NEAT PORTLAND CEMENT OCCUPYING AN ARTIFICIALLY PRODUCED FRACTURE EXTENDING INTO SAID OIL ZONE ADJACENT TO THE ZONE CONTAINING SAID OTHER FLUID, AND A SUBSTANTIALLY IMPERMEABLE LAYER ADJACENT EACH SURFACE OF THE PORTLAND CEMENT LAYER CONSISTING OF THE FORMATION ADJACENT SAID FRACTURE HAVING ITS PORES PLUGGED WITH A MATERIAL INSOLUBLE IN OIL AND IN WATER.
Claim 4
Dependent Claim
85 words
A THREE-LAYER BARRIER TO THE FLOW OF FLUID OTHER THAN OIL INTO AN OIL WELL FROM A ZONE ADJACENT TO THE OIL ZONE WHICH COMPRISES A LAYER OF SUBSTANTIALLY FULLY CURED NEAT PORTLAND CEMENT OCCUPYING AN ARTIFICIALLY PRODUCED FRACTURE EXTENDING INTO SAID OIL ZONE ADJACENT TO THE ZONE CONTAINING SAID OTHER FLUID, AND A SUBSTANTIALLY IMPERMEABLE LAYER ADJACENT EACH SURFACE OF THE PORTLAND CEMENT LAYER CONSISTING OF THE FORMATION ADJACENT SAID FRACTURE HAVING ITS PORES PLUGGED WITH A MATERIAL INSOLUBLE IN OIL AND IN WATER.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |