RU1798542C
|
|
Well sucker-rod pump
|
RU1787146C
|
|
Asphalt-cement mixture
|
SU1779779A1
|
|
Well sucker-rod pump
|
RU1798484C
|
|
Composite cementing plug
|
RU1790987C
|
|
Cavitation mixer
|
SU1745896A1
|
|
Well cementing device
|
RU1793042C
|
|
Method for preparation of plugging cement slurry
|
RU1785727C
|
|
Device for mixing liquids
|
RU1795087C
|
|
Method of screening sand showing
|
SU1752669A1
|
|
Floating tank screen for storing liquids
|
RU1779743C
|
|
Method for supplementary of oil from clayey oil-bearing sands
|
RU1789677C
|
|
Method of run-in of well
|
SU1758214A1
|
|
Grouting mortar
|
RU1789671C
|
|
Hole filter
|
SU1751403A1
|
|
Well rod pump
|
RU1783109C
|
|
Process of washing-through of borehole
|
SU1684482A1
|
|
Method for eliminating fluid inflow
|
SU1740643A1
|
|
Oil well bottomhole treatment method
|
SU1716122A1
|
|
Device for bottomhole parameters control via hydraulic channel
|
SU1673725A1
|
|
Casing shoe
|