How to exploit efficiently unconventional hydrocarbon has become an important step to solve the problem of increasing reserve and production of oil & gas in China. Aiming at unconventional oil & gas well e.
[pdf] In hard rock mining and quarrying, this is achieved through a controlled process of drilling and blasting. A blast hole drill rig is a specialised piece of equipment that creates a series of holes in a specific pattern, depth, and diameter across a section of rock known as a “bench.”
[pdf] Choosing the optimal oil for your screw compressor should consider various factors: Manufacturer specifications: Always consult the manufacturer's recommendations regarding viscosity and oil type. Operating conditions: Evaluate ambient temperature, duty cycles, and typical compressor loads.
[pdf] 
