DEVICE FOR APPLICATION OF ORIENTATION MARK ON CORE Russian patent published in 1994 - IPC

Abstract RU 2015299 C1

FIELD: drilling wells with cutting oriented cores. SUBSTANCE: device has cylindrical body 1 with appliance 2 for fastening to rope of eccentrically located weight 5 and marking tooth 6. Weight 5 and tooth 6 are located on cylindrical core 3 installed on bearings 4 in body 1 for turning relative to its longitudinal axis. EFFECT: extended field of application in wells with small angles of deviation from vertical and higher accuracy of core orientation. 2 dwg

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RU 2 015 299 C1

Authors

Skovorodnikov I.G.

Dates

1994-06-30—Published

1991-12-18—Filed