05.07.2009
Sorry, this entry is only available in עברית.
Hard upper surface on an oil or gas platform
Map that shows the change in elevation over a geographic area through the use of contour lines. The contour lines trace points of equal elevation across the map
Second-in-command of a drilling crew under the drilling superintendent. Responsible for the day-to-day running of the rig and for ensuring that all the necessary equipment is available