US3089542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil well fracturing method
Assignee: Wyeth Holdings LLC
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Filing: 1960-04-13
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Granted: 1963-05-14
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Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Kolodny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/267; C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A METHOD OF FRACTURING SUBTERRANEAN FORMATIONS TO INCREASE THE FLOW OF OIL TO A WELL BORE, IN WHICH A FRACTURING FLUID IS PUMPED DOWN THE WELL INTO THE FORMATION UNDER SUFFICIENT PRESSURE TO CAUSE THE FORMATION TO FRACTURE, THE IMPROVEMENT WHICH COMPRISES THE STEP OF: INCORPORATING INTO SAID FLUID AS PROPPING AGENTS DISCRETE BEADS CONSISTING ESSENTIALLY OF THERMOSET RESINS SELECTED FROM THE CLASS CONSISTING OF POLYESTER RESINS AND CROSSLINKED STYRENE RESINS, SAID BEAD BEING CAPABLE OF WITHSTANDING ELEVATED PRESSURES OF AT LEAST 33,000 POUNDS PER SQUARE INCH IN THE ABSENCE OF SUBSTANTIAL DEGRADATION WHEREIN LESS THAN ABOUT 1 PERCENT OF ALL THE BEADS THEREIN EMPLOYED WILL PASS THROUGH A 60 MESH SCREEN, AND FURTHER BEING CHARACTERIZED BY A SUBSTANTIAL SPHERICAL CONFIGURATION, A PARTICLE SIZE OF WITHIN THE RANGE OF ABOUT 2 AND ABOUT 60 MESH AND BY A DENSITY IN EXCESS OF THE DENSITY OF THE FRACTURING FLUID.
Claim 2
Dependent Claim
149 words
IN A METHOD OF FRACTURING SUBTERRANEAN FORMATIONS TO INCREASE THE FLOW OF OIL TO A WELL BORE, IN WHICH A FRACTURING FLUID IS PUMPED DOWN THE WELL INTO THE FORMATION UNDER SUFFICIENT PRESSURE TO CAUSE THE FORMATION TO FRACTURE, THE IMPROVEMENT WHICH COMPRISES THE STEP OF: INCORPORATING INTO SAID FLUID AS PROPPING AGENTS DISCRETE BEADS CONSISTING ESSENTIALLY OF THERMOSET RESINS SELECTED FROM THE CLASS CONSISTING OF POLYESTER RESINS AND CROSSLINKED STYRENE RESINS, SAID BEAD BEING CAPABLE OF WITHSTANDING ELEVATED PRESSURES OF AT LEAST 33,000 POUNDS PER SQUARE INCH IN THE ABSENCE OF SUBSTANTIAL DEGRADATION WHEREIN LESS THAN ABOUT 1 PERCENT OF ALL THE BEADS THEREIN EMPLOYED WILL PASS THROUGH A 60 MESH SCREEN, AND FURTHER BEING CHARACTERIZED BY A SUBSTANTIAL SPHERICAL CONFIGURATION, A PARTICLE SIZE OF WITHIN THE RANGE OF ABOUT 2 AND ABOUT 60 MESH AND BY A DENSITY IN EXCESS OF THE DENSITY OF THE FRACTURING FLUID.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |