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RU1790665C
|
|
Device for location and fishing of parted pipes in well
|
|
RU1782266C
|
|
Guide for bottom part of string of drill pipes
|
|
RU1776304C
|
|
Device for running weighted geophysical instrument into well
|
|
RU1788224C
|
|
Inclinometer
|
|
RU1780546C
|
|
Well exploration device
|
|
RU1796015C
|
|
Borehole incline pickup
|
|
RU1776305C
|
|
Well inclination angle transmitter
|
|
SU1760324A1
|
|
Of azimuth of inclinometer
|
|
SU1763644A1
|
|
Inclinometer azimuth date converter
|
|
SU1765377A1
|
|
Apparatus for passage of instrument into a well
|
|
RU1798491C
|
|
Method for transmitting information from instrument in deep well
|
|
SU1778286A1
|
|
Device for measuring pressure of medium in string-borehole annulus of well
|
|
SU1719627A1
|
|
Turbodrill shaft rotation speed controller
|
|
RU1772347C
|
|
Oil well exploration method
|
|
SU1747683A1
|
|
Oil well investigating device
|
|
SU1747686A1
|
|
Formation tester
|
|
RU1792484C
|
|
Device for study of mechanized oil wells
|
|
SU1752943A1
|
|
Device for surveying boreholes by the wire-line instruments
|
|
RU1782272C
|
|
Locking piece for underground borehole equipment
|
|
SU1761947A1
|
|
Well debit meter
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