|
2020
|
Invention
|
Dual-speed dual—core enhanced drilling equipment. A dual-speed and dual-core enhanced drilling eq... |
|
2016
|
Invention
|
Method for manufacturing 3d printing die for impregnated diamond drill bit. Provided is a method ... |
|
|
Invention
|
Double-cutting impregnated diamond drill. Disclosed is an impregnated diamond drill bit having a ... |
|
|
Invention
|
Particle drilling method.
A particle drilling method includes steps of: (a) injecting particles,... |
|
|
Invention
|
Double-injection-pump continuous injection method suitable for particle-impact drilling. The pres... |
|
|
Invention
|
Particle-impact drilling method. A particle-impact drilling method comprises the following steps:... |
|
2009
|
P/S
|
Petrochemical plants consisting of an assembly of different
machines; oil drilling machines; slu... |
