Patent US3349032A successfully refreshed from Google Patents.
US3349032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preventing the swelling of clays in subterranean formations
Assignee: Baker Petrolite LLC
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Filing: 1965-01-04
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Granted: 1967-10-24
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Charles D Krieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:06
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/607; Y; Y10; Y10S; Y10S507/00; Y10S507/922; Y10S507/925; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
A METHOD OF PREVENTING THE SWELLING OF CLAY-CON TAINING MATERIALS IN CONTACT WITH WATER WHICH IS CHARACTERIZED BY CONTACTING SAID MATERIALS WITH A POLYQUATERNARY AMINE SELECTED FROM THE GROUP CONSISTING OF (1) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYLENE ETHER RADICAL HAVING 1-10 CARBON ATOMS AND A CYCLOALKYLENE ETHER RADICAL HAVING 4-10 CARBON ATOMS, AND AND IS AN ANION, AND (2) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS AN UNSATGURATED ALIPHATIC HYDROCARBON RADICAL HAVING 2-10 CARBON ATOMS, AND X IS AN ANION.
Claim 2
Independent Claim
138 words
A METHOD OF PREVENTING THE SWELLING OF CLAY-CON TAINING MATERIALS IN CONTACT WITH WATER WHICH IS CHARACTERIZED BY CONTACTING SAID MATERIALS WITH A POLYQUATERNARY AMINE SELECTED FROM THE GROUP CONSISTING OF (1) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYLENE ETHER RADICAL HAVING 1-10 CARBON ATOMS AND A CYCLOALKYLENE ETHER RADICAL HAVING 4-10 CARBON ATOMS, AND AND IS AN ANION, AND (2) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS AN UNSATGURATED ALIPHATIC HYDROCARBON RADICAL HAVING 2-10 CARBON ATOMS, AND X IS AN ANION.
Claim 3
Independent Claim
153 words
A METHOD OF RECOVERING OIL FROM CLAY-CONTAINING SUBTERRANEAN OIL-BEARING FORMATIONS BY WATER FLOODING WHICH IS CHARACTERIZED BY FLOODING SAID FORMATIONS WITH WATER CONTAINING A POLYQUATERNARY AMINE SELECTED FROM THE GROUP CONSISTING OF (1) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYLENE ETHER RADICAL HAVING 1-10 CARBON ATOMS AND A CYCLOALKYLENE ETHER RADICAL HAVING 4-10 CARBON ATOMS, AND X IS AN ANION, AND (2) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS AN UNSATURATED ALIPHATIC HYDROCARBON RADICAL HAVING 2-10 CARBON ATOMS, AND X IS AN ANION IN THE AMOUNT SUFFICIENT TO PREVENT THE SWELLING OF THE CLAYS IN SAID FORMATIONS.
Claim 4
Independent Claim
153 words
A METHOD OF RECOVERING OIL FROM CLAY-CONTAINING SUBTERRANEAN OIL-BEARING FORMATIONS BY WATER FLOODING WHICH IS CHARACTERIZED BY FLOODING SAID FORMATIONS WITH WATER CONTAINING A POLYQUATERNARY AMINE SELECTED FROM THE GROUP CONSISTING OF (1) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYLENE ETHER RADICAL HAVING 1-10 CARBON ATOMS AND A CYCLOALKYLENE ETHER RADICAL HAVING 4-10 CARBON ATOMS, AND X IS AN ANION, AND (2) THE POLYQUATERNARY AMINE HAVING THE FORMULA ((H3C)2-N(+)(-R)-A-N(+)(-R)(-CH3)2) 2X(-) WHERE R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROCARBON RADICAL HAVING AT LEAST 6 CARBON ATOMS, CHLOROPHENYL, AND NITROPHENYL, A IS AN UNSATURATED ALIPHATIC HYDROCARBON RADICAL HAVING 2-10 CARBON ATOMS, AND X IS AN ANION IN THE AMOUNT SUFFICIENT TO PREVENT THE SWELLING OF THE CLAYS IN SAID FORMATIONS.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |