US3301327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well stimulation method
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1963-08-12
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Granted: 1967-01-31
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 John T Patton
- 👤 Francis E Campion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:04
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD FOR THE TREATMENT OF A WELL THAT PENETRATES A FORMATION HAVING AN OIL-PRODUCING ZONE AND A WATERPRODUCING ZONE, WHICH COMPRISES FIRST INJECTING INTO SAID FORMATION AT LEAST ONE BARREL OF SURFACANT-FREE OIL PER FOOT OF FORMATION THICKNESS, THEN INJECTING AT LEAST ONE BARREL OF SURFACTANT SOLUTION PER FOOT OF FORMATION THICKNESS, AND THEREAFTER RESUMING THE PRODUCTION OF FLUIDS FROM SAID WELL.
Claim 2
Independent Claim
63 words
A METHOD FOR THE TREATMENT OF A WELL THAT PENETRATES A FORMATION HAVING AN OIL-PRODUCING ZONE AND A WATERPRODUCING ZONE, WHICH COMPRISES FIRST INJECTING INTO SAID FORMATION AT LEAST ONE BARREL OF SURFACANT-FREE OIL PER FOOT OF FORMATION THICKNESS, THEN INJECTING AT LEAST ONE BARREL OF SURFACTANT SOLUTION PER FOOT OF FORMATION THICKNESS, AND THEREAFTER RESUMING THE PRODUCTION OF FLUIDS FROM SAID WELL.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |