20030173085-A1 is referenced by 2 patents.

A method for treating a coal formation to alter properties of coal in the formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to transfer from the one or more heaters to a part of the formation. In certain embodiments, the heat from the one or more heaters may pyrolyze at least some hydrocarbons within the part of the formation. The method may include producing a fluid from the formation. In some embodiments, the produced fluid may include at least some pyrolyzed hydrocarbons from the formation. In an embodiment, after at least some coal has been treated at least a portion of such coal may be produced from the formation.

Title
Upgrading and mining of coal
Application Number
10/279286
Publication Number
20030173085
Application Date
October 24, 2002
Publication Date
September 18, 2003
Inventor
Scott Lee Wellington
Bellaire
TX, US
Kevin Albert Maher
Bellaire
TX, US
Harold J Vinegar
Bellaire
TX, US
Agent
Shell Oil Company
TX, US
Agent
Del Christensen
TX, US
IPC
E21C 37/20
E21C 37/16
E21B 43/24
E21B 36/00
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