Survey of an uncased hole which measures the resistivity and spontaneous potential of the rock formations penetrated.
Elevation above sea level of the derrick floor or rotary table.
Also called ethyl alcohol and is the alcohol found in most spirituous beverages (C2H5OH). One component of gasohol.
The case that the sponsors believe is the most likely outcome based upon their view of future events and development of the project.
A well drilled either in search of a new undiscovered pool of oil or gas, or to extend greatly the limits of a known pool.