High-torque gear reducer expands turbodrill capabilities

07/05/1999
New developments in turbodrill technologies, aided by high-torque gear reducers, hold promise for horizontal and vertical drilling applications.For several decades, the Russian turbodrill has traditionally been used for drilling oil and gas wells in the Former Soviet Union. Throughout the early 1990s, this technology drilled more than 32 million m annually with current footage encompassing about 75% of the total drilling volume.Over the last few years, however, new bit designs fitted with oil-filled bearings, along with the development of horizontal drilling technologies, have resulted in reduced turbodrill drilling volumes as compared to other systems. These reduced drilling volumes were...
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