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