The concept of the water hose 'deluge technique' to assist capping rogue oil wells at risk of ignition (for example sparking from drilling machinery) is shown in this 36 minute IMAX documentary movie (also available at a local DVD store):
This remarkable movie was nominated for an Academy award and relates to a 9 month, 10,000 strong workforce, project. Initial estimates were 5 to 10 year schedule.
There are many differences between the West Atlas oil leak situation and the Kuwait situation in that the oil leak has not ignited here, and no doubt that's the way it's intended to stay; The Atlas leak is a few hundreds metres under the ocean while in Kuwait there were some 700 burning land based oil wells.
However the movie does indicate the high drama involved. When initially extinguished by various means including ventura pipe, jet engine blast or explosive charge, this intervention was accompanied by a deluge of sea water via high pressure hoses to keep temperatures low enough for machines to approach. And secondly to prevent re-ignition with super heated surroundings just prior to extinguishment.