China s Downhole Drilling Methods

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]

Steam drilling rig

The advent of cable-tool drilling introduced the wooden derrick into the changing American landscape. Using the same basic notion of chiseling a hole deeper into the earth, along with adding steam power and cl. [pdf]