U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of treating subterranean gas hydrate formations

Patent 6148911 Issued on November 21, 2000. Estimated Expiration Date: Icon_subject March 30, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Gas recovery from hydrate reservoirs
Patent #: 4007787
Issued on: 02/15/1977
Inventor: Cottle

Method of supplying gas to gas consumers
Patent #: 5450899
Issued on: 09/19/1995
Inventor: Belonenko, et al.

Methods of decomposing gas hydrates
Patent #: 5713416
Issued on: 02/03/1998
Inventor: Chatterji, et al.

Process for the thermo-hydraulic control of gas hydrates Patent #: 6035933
Issued on: 03/14/2000
Inventor: Khalil, et al.

Inventors

Assignee

Application

No. 281088 filed on 03/30/1999

US Classes:

166/248, Electric current or electrical wave energy through earth for treating166/272.1, Involving the step of heating166/272.2In association with fracturing or crevice forming processes

Examiners

Primary: Tsay, Frank

Attorney, Agent or Firm

International Class

E21B 043/12

Abstract

A gas hydrate formation is treated by horizontally fracturing the formation, placing electrically conductive proppant particles in the fracture, and passing an electric current through the proppant particles in the fracture to generate sufficient heat to release gas from the hydrate. The method has particular application in shallow gas-bearing formations underlying or within the permafrost.

Other References

  • M.R. Islam, Emertec Developments Inc., SPE 22924, A New Recovery Technique for Gas Production From Alaskan Gas Hydrates, Oct. 6-9, 199
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