ConocoPhillips set a long-distance drilling record in Alaska with a 5-mile well at its CD5 field, where oil production has beat the original target by 25 percent. The record well, drilled by Doyon Rig 19, reached a depth of 7,400 feet, with a horizontal leg extending a little more than 3 miles. The well took 24 days to drill.
The longer wells can ultimately mean more oil production over longer periods, while reducing impacts to the environment, ConocoPhillips officials said in a statement announcing the record. More than 60 square miles of subsurface area can be reached from a single drilling pad.
Read more at ADN.com: ConocoPhillips well extends a record.