3918521

Information

• Patent Grant
• 3918521

• References
• Source

• Patent Number

  3,918,521

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1975
  49 years ago

• CPC

  • B01D53/501 - by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
  • C01B17/62 - Methods of preparing sulfites in general
  • C09K8/60 - Compositions for stimulating production by acting on the underground formation
  • E21B43/17 - Interconnecting two or more wells by fracturing or otherwise attacking the formation
  • E21B43/24 - using heat
  • E21B43/40 - Separation associated with re-injection of separated materials

• US Classifications

  • 166 - Wells
  • 423 - Chemistry of inorganic compounds