term paper. Also found in: Thesaurus, Encyclopedia. term paper. n. A lengthy piece of written work required of a student on a topic drawn from the subject matter of a course of study. termâ² paâ²per. n. a long essay or report written by a student as a major assignment over the span of a semester. [1925â30]
1 Drilling contractors can drill multiple wells in a shorter time than they might, otherwise, with just one well per site. 2  Surface drilling is a critical component of the pad drilling process. 3  Wellbore integrity begins surface drilling providers.
Sub-surface mining consists of digging tunnels or shafts into the earth to reach buried ore deposits. Ore, for processing, and waste rock, for disposal, are brought to the surface through the tunnels and shafts. Sub-surface mining can be classified by the type of access shafts used, the extraction method or the technique used to reach the mineral deposit.