Method and composition for treating formations penetrated by wells

• US 3,283,817 A
• Filed: 01/03/1964
• Issued: 11/08/1966
• Est. Priority Date: 01/03/1964
• Status: Expired due to Term

• Current Assignee: William G. Roberts
• Original Assignee: William G. Roberts
• Inventors: Roberts, William G.
• Application Number:
  US04/335,681
• Time in Patent Office: 1,040 Days
• US Class Current: 166/279
• CPC Class Codes: C09K 8/62 Compositions for forming crevices or fractures
• CPC Class Codes: E21B 43/267 reinforcing fractures by propping
• CPC Class Codes: Y10S 507/922 Fracture fluid

Claims

1. A METHOD OF FRACTURING A FORMATION PENETRATED BY A WELL BORE, WHICH METHOD COMPRISES INTRODUCING INTO SAID WELL BORE UNDER SUFFICIENT PRESSURE TO FRACTURE SAID FORMATION A FRACTURING LIQUID COMPOSITION HAVING SUSPENDED THEREIN FINELY DIVIDED CRUSH-RESISTANT PARTICLES OF A COMBINATION PROPPING AND ALKALINE EARTH METAL ION SCAVENGING AGENT WHICH CAN BE REGENERATED IN PLACE IN SAID FORMATION.

13. A COMPOSITION OF MATTER, USEFUL IN THE FRACTURE TREATMENT OF A FORMATION PENETRATED BY A WELL BORE, COMPRISING A LIQUID CARRIER MEDIUM HAVING SUSPENDED THEREIN FINELY DIVIDED CRUSH-RESISTANT PARTICLES OF A COMBINATION PROPPING AND ALKALI METAL ION SCAVENGING AGENT COMPRISING AN ALKALI METAL SALT OF A SULFONATED COPOLYMER OF A MONOVINYL-SUBSTITUTED AROMATIC HYDROCARBON WITH A DIVINYL-SUBSTITUTED AROMATIC HYDROCARBON COMONOMER WHEREIN SAID COMONOMER IS INCORPORATED IN SAID COPOLYMER IN AN AMOUNT OF UP TO 20 WEIGHT PERCENT OF SAID COPOLYMER.