Method of preventing the swelling of clays in subterranean formations

• US 3,349,032 A
• Filed: 01/04/1965
• Issued: 10/24/1967
• Est. Priority Date: 01/04/1965
• Status: Expired due to Term

• Current Assignee: Charles D. Krieg
• Original Assignee: Charles D. Krieg
• Inventors: Krieg, Charles D.
• Application Number:
  US04/423,352
• Time in Patent Office: 1,023 Days
• US Class Current: 166/275
• CPC Class Codes: C09K 8/607 specially adapted for clay formations
• CPC Class Codes: Y10S 507/922 Fracture fluid
• CPC Class Codes: Y10S 507/925 Completion or workover fluid
• CPC Class Codes: Y10S 507/936 Flooding the formation

Claims

1. 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.

5. 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.