08272455 is referenced by 20 patents and cites 1182 patents.

A method for forming a wellbore in a heated formation includes flowing liquid cooling fluid to a bottom hole assembly in a wellbore in a heated formation. At least a portion of the liquid cooling fluid is vaporized at or near a region to be cooled. Vaporizing the liquid cooling fluid absorbs heat from the region to be cooled.

Title
Methods for forming wellbores in heated formations
Application Number
12/250288
Publication Number
8272455 (B2)
Application Date
October 13, 2008
Publication Date
September 25, 2012
Inventor
Arthur James Mansure
Alburquerque
NM, US
Rosalvina Ramona Guimerans
The Woodlands
TX, US
Assignee
Shell Oil Company
TX, US
IPC
E21B 36/00
E21B 21/12
E21B 7/00
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