Oil majors betting big on shale technology
The technological push comes amid worries that US shale gains are slowing as investors press for higher financial returns
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Houston
SHALE oil engineer Oscar Portillo spends his days drilling as many as five wells at once - without ever setting foot on a rig.
Part of a team working to cut the cost of drilling a new shale well by a third, Mr Portillo works from a Royal Dutch Shell Plc office in suburban Houston, his eyes darting among 13 monitors flashing data on speed, temperature and other metrics as he helps control rigs more than 805 km away in the Permian Basin, the largest US oilfield.
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