|
SU1518492A1
|
|
Formation hydraulic fracturing apparatus
|
|
SU1530759A1
|
|
Deep-well filter
|
|
SU1534184A1
|
|
Method of equipping injection wells, and deep-well filter
|
|
SU891900A1
|
|
Device for sampling in wells
|
|
SU883345A1
|
|
Device for launching well operation
|
|
SU866136A1
|
|
Filter for injection wells
|
|
SU874991A1
|
|
Method of making filterless wells
|
|
SU840306A1
|
|
Method of making engineering wells
|
|
SU832069A1
|
|
Device for running down countersunk casings
|
|
SU775298A1
|
|
Device for casing-in a well
|
|
SU804819A1
|
|
Arrangement for covering filter with gravel
|
|
SU662717A1
|
|
Device for borehole hydraulic excavation of minerals
|
|
SU617579A1
|
|
Device for securing borehole walls with plugging materials
|
|
SU691550A1
|
|
Apparatus for drilling boreholes
|
|
SU618605A1
|
|
Pipe connection
|
|
SU648787A1
|
|
Pipeline joint
|
|
SU569700A1
|
|
Device for cleaning screens from sand clogs
|
|
SU578583A1
|
|
Stratum liquid sampling device
|
|
SU571579A1
|
|
Device for flushing bore-holes
|
|
SU588337A1
|
|
Tubular mill cutter connection
|
