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Rosalvina Ramona Guimerans, Arthur James Mansure: Methods for forming wellbores in heated formations. Shell Oil Company, September 25, 2012: US08272455 (20 worldwide citation)

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 fr ...


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Rosalvina Ramona Guimerans, Arthur James Mansure: Methods for forming wellbores in heated formations. Shell Oil Company, August 6, 2009: US20090194329-A1

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 fr ...