DRILLING RIG Russian patent published in 1995 - IPC

Abstract RU 2030544 C1

FIELD: well drilling. SUBSTANCE: drilling rig has platform with mast 2 and guides 3 for rotary head 4, upper support 13 in form of hook, and lower support 14 in form of bracket carrying changeable nozzle 15 made in form of truncated cone with cutout 16. There is removable sleeve. V-shaped beds 6 are attached to bearing beam 5. There is gripping device for mounting and dismantling of drill rods 9 and having double-cantilevered bracket 7 with pins 8 and base 10 movable along axis of bearing beam and provided with projection 11 and pins 12. EFFECT: higher efficiency due to accelerated mounting-dismantling of drill rods 9. 2 cl, 8 dwg

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RU 2 030 544 C1

Authors

Eroshkin L.A.

Kogan A.D.

Bojchevskij V.O.

Dates

1995-03-10—Published

1990-06-26—Filed