DEVICE FOR WELL DRILLING Russian patent published in 1995 - IPC

Abstract RU 2034152 C1

FIELD: drilling of oil and gas wells. SUBSTANCE: device for well drilling includes drill string with rock cutting tool and appliance for string bending to horizontal position made in form of tubular director bent over radius whose upper end is horizontal and lower end is vertical or inclined. EFFECT: higher efficiency. 2 dwg

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RU 2 034 152 C1

Authors

Lazarev A.P.

Dates

1995-04-30Published

1990-05-14Filed