A new drill which is being tested at Leona Valley Ranch is driven by a turbine engine which is propelled by liquid mud pumped into it from the surface.

• 在得克萨斯州第里昂纳谷地牧场进行试验第一台新钻机由涡轮机驱动，而涡轮机则由从地面上用泵打进去打泥浆推动。