|
SU794197A1
|
|
Formation opening-up device
|
|
SU927950A1
|
|
Hydraulic device for producing high-pressure jets
|
|
SU717298A1
|
|
Liquid for treating well-face area
|
|
SU777200A1
|
|
Swivel head
|
|
SU726311A1
|
|
Cementing composition
|
|
SU685273A1
|
|
Drawing desk
|
|
SU697697A1
|
|
Perforator
|
|
SU832055A1
|
|
Blowout preventer
|
|
SU732494A1
|
|
Plugging mortar
|
|
SU746100A1
|
|
Formation tester
|
|
SU693153A2
|
|
Viscosimeter
|
|
SU663823A1
|
|
Gaslift
|
|
SU631675A1
|
|
Well sucker-rod-pump cylinder
|
|
SU663825A1
|
|
Device for securing multi-hole wells
|
|
SU726319A1
|
|
Sampler for formation tester
|
|
SU653382A1
|
|
Method of periodic gas-lift operation of well
|
|
SU648715A1
|
|
Packer
|
|
SU592965A1
|
|
Plugging mixture
|
|
SU612010A1
|
|
Turbulator for increasing well yield
|
|
SU607001A1
|
|
Method of obtaining acidic dril mud
|
