Treating Sleeping Sickness. The type of treatment depends on the stage of the disease. Drugs used in the first stage of the disease are of lower toxicity and are easier to administer. However, treatment success in the second stage of the disease depends on a drug that can cross the blood-brain barrier.
Definition of casinghead gas. : natural gas rich in hydrocarbon vapors that is taken without processing from an oil well.
Cementing is the process of mixing and pumping cement slurry down to fill the annular space behind. the pipe. When setting, the cement will establish a bond between the pipe and the formation. Unlike. oil and gas wells, the casings in geothermal wells are usually fully cemented back to the surface.