US3051236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating underground formations
Assignee: Texaco Inc
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Filing: 1958-12-30
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Granted: 1962-08-28
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Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Francis J Mitch
- 👤 Landau Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:36
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/92; E; E21; E21B; E21B43/00; E21B43/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF TREATING AN UNDERGROUND WATER-CON TAINING FORMATION TO ALTER THEPERMEABILITY AND POROSITY THEREOF WHICH COMPRISES INTRODUCING INTO SAID FORMATION A SOLUTION CONSISTING ESSENTIALLY OF DIPHENYL PHTHALATE IN AN ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC KETONE AND AN ALIPHATIC ALCOHOL TO CONTACT THE WATER THEREIN TO PRECIPITATE SAID DIPHENYL PHTHALATE FROM SAID SOLUTION THEREBY ALTERING THE AFORESAID CHARACTERISTICS OF SAID FORMATION.
Claim 2
Independent Claim
66 words
A METHOD OF TREATING AN UNDERGROUND WATER-CON TAINING FORMATION TO ALTER THEPERMEABILITY AND POROSITY THEREOF WHICH COMPRISES INTRODUCING INTO SAID FORMATION A SOLUTION CONSISTING ESSENTIALLY OF DIPHENYL PHTHALATE IN AN ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC KETONE AND AN ALIPHATIC ALCOHOL TO CONTACT THE WATER THEREIN TO PRECIPITATE SAID DIPHENYL PHTHALATE FROM SAID SOLUTION THEREBY ALTERING THE AFORESAID CHARACTERISTICS OF SAID FORMATION.
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |