US3313348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming vertical well bore fractures by use of circumferential notching
Assignee: Gulf Research and Development Co
•
Filing: 1963-12-27
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Granted: 1967-04-11
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jimmie L Huitt
- 👤 Abraham J Teplitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A METHOD FOR INCREASING THE CAPACITY OF A WELL FOR RECOVERY OF OIL FROM AN UNDERGROUND OIL-BEARING FORMATION COMPRISING DRILLING A WELL, DEVIATING THE BOREHOLE OF THE WELL FROM THE VERTICAL WHEREBY AT LEAST A PORTION OF THE BOREHOLE OF THE WELL EXTENDS THROUGH THE OIL-BEARING FORMATION AT AN ANGLE OF AT LEAST 45* WITH THE VERTICAL, CUTTING A NOTCH EXTENDING FROM THE BOREHOLE OF THE WELL CUTTING A NOTCH EXTENDING FROM THE BOREHOLE OF THE WELL INTO THE OIL-BEARING FORMATION AT SUBSTANTIALLY RIGHT ANGLES TO THE BOREHOLE OF THE WELL, SAID NOTCH BEING LOCATED AT A POSITION IN THE WELL WHERE THE BOREHOLE OF THE WELL MAKES AN ANGLE OF AT LEAST 45* WITH THE VERTICAL, DISPLACING A FLUID UNDER PRESSURE INTO THE WELL AND INCREASING THE PRESSURE ON SAID FLUID TO CREATE A SINGLE FRACTURE EXTENDING FROM SAID NOTCH SUBSTANTIALLY PERPENDICULARLY TO SAID BOREHOLE, AND DEPOSITING A PROPPING AGENT IN THE FRACTURE.
Claim 2
Independent Claim
154 words
A METHOD FOR INCREASING THE CAPACITY OF A WELL FOR RECOVERY OF OIL FROM AN UNDERGROUND OIL-BEARING FORMATION COMPRISING DRILLING A WELL, DEVIATING THE BOREHOLE OF THE WELL FROM THE VERTICAL WHEREBY AT LEAST A PORTION OF THE BOREHOLE OF THE WELL EXTENDS THROUGH THE OIL-BEARING FORMATION AT AN ANGLE OF AT LEAST 45* WITH THE VERTICAL, CUTTING A NOTCH EXTENDING FROM THE BOREHOLE OF THE WELL CUTTING A NOTCH EXTENDING FROM THE BOREHOLE OF THE WELL INTO THE OIL-BEARING FORMATION AT SUBSTANTIALLY RIGHT ANGLES TO THE BOREHOLE OF THE WELL, SAID NOTCH BEING LOCATED AT A POSITION IN THE WELL WHERE THE BOREHOLE OF THE WELL MAKES AN ANGLE OF AT LEAST 45* WITH THE VERTICAL, DISPLACING A FLUID UNDER PRESSURE INTO THE WELL AND INCREASING THE PRESSURE ON SAID FLUID TO CREATE A SINGLE FRACTURE EXTENDING FROM SAID NOTCH SUBSTANTIALLY PERPENDICULARLY TO SAID BOREHOLE, AND DEPOSITING A PROPPING AGENT IN THE FRACTURE.
References Cited (Backward Citations)
US2758653A
Cited
US3002454A
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US2970645A
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US3058521A
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US3097694A
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US3130786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |