CNN Wire Staff
[cnn-photo-caption image=http://www.cnn.com/video/us/2010/07/15/vo.oil.stops.flowing.bp.576×324.jpg caption="BP VP Wells says he's "obviously very excited" by stoppage but focusing on the test" width=300 height=169]
A highly anticipated test designed to measure pressure within BP's ruptured Gulf of Mexico oil well began Thursday after a delay caused by leaking equipment.
A short time later, BP Senior Vice President Kent Wells announced that for the first time in almost three months, no oil was flowing into the Gulf. This was part of the test, as BP measures pressure in the well to see how it's holding. Higher pressure readings mean the well is containing the oil, while lower pressure means some is leaking out.
The data is being particularly closely scrutinized at six-hour intervals, so a key time will occur later Thursday night, after the first six hours.
Filed under: Gulf Oil Spill
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