|
RU1834970C
|
|
Method of oil wells gas-hydrate depositions elimination
|
|
RU1788194C
|
|
Filter for string of drill pipes
|
|
RU1836537C
|
|
Fixing method of electrocentrifugal pump cable to the drill tubing strings and the device for its accomplishment
|
|
RU1836541C
|
|
Device for borehole mouth sealing
|
|
RU1838576C
|
|
Spear
|
|
RU1810454C
|
|
Device for collaring additional wellbore
|
|
RU1790667C
|
|
Device for installation of junction pipe to drill pipe
|
|
RU1797646C
|
|
Method for well completion with the help of ejector pump and device for its realization
|
|
RU1836542C
|
|
A method for erection of cement bridges
|
|
RU1810453C
|
|
Valve device for cutting off downhole mechanisms
|
|
RU1790661C
|
|
Method for adjustment of drawworks braking system
|
|
RU1797703C
|
|
Device for pressure tests of tubular parts
|
|
RU1838575C
|
|
Wall hook
|
|
RU1789012C
|
|
Method for spotting oil bath
|
|
RU1790664C
|
|
Method for releasing of stuck drill pipe string in well
|
|
RU1799994C
|
|
Wall hook
|
|
RU1813168C
|
|
Collar equipment for plugging gusher
|
|
RU2014425C1
|
|
Equipment for casing pressure testing
|
|
RU2014428C1
|
|
Device for assembling casing bottom
|
|
RU1776301C
|
|
Method for development of wells
|
