RU1799412C
|
|
Method for withdrawal of mineralized water from underground mine working
|
RU1778241C
|
|
Method for forming recultivating level of hydraulic-mine dump
|
SU1740693A1
|
|
Method for extraction of gas from and rock samples and relevant device
|
SU1723089A1
|
|
Reagent for preparation of polymer-bentonite drilling fluid
|
SU1749225A1
|
|
Drilling fluid
|
SU1721245A1
|
|
Method for joint storage of overburden rocks and concentration waste
|
SU1698439A1
|
|
Method for preparation of excavated pillar by powered mining complex
|
SU1696452A1
|
|
Method of treatment of polyacrylamide drilling mud
|
SU1687768A1
|
|
Gelforming plugging compund
|
SU1657604A1
|
|
Closure device of gas- and core-sampler
|
SU1673692A1
|
|
Method for consolidation of unstable soil mass
|
SU1652581A1
|
|
Stand for investigation of process of pumping binding solutions into fissured rocks
|
SU1740626A1
|
|
Plugging-back device
|
SU1740619A1
|
|
Drilling tool
|
SU1742073A1
|
|
Mixing device
|
SU1606681A1
|
|
Detachable sealed core- and gas-taker
|
SU1652509A1
|
|
Plugging-back unit
|
RU1783177C
|
|
Pulser
|
SU1602974A1
|
|
Plugging device
|
SU1553662A1
|
|
Method and sensor for registering vibration of drill pipes at well head
|