to drive a borehole
51Oil depletion — per major producing country. This model assumes world oil depletion remains constant at the 2004 level of 80 million barrels per day.[1] However, world oil depletion is currently (as of 2008) at 85 million barrels per day …
52Tropical agriculture — Worldwide more human beings gain their livelihood from agriculture than any other endeavor; the majority are self employed subsistence farmers living in the tropics. While growing food for local consumption is the core of tropical agriculture,… …
53New Lambton, New South Wales — New Lambton Newcastle, New South Wales Population: 9236 (2006 census) Postcode: 2305 Area: 5.2 km² (2.0  …
54Treadle pump — A treadle pump is a human powered pump designed to lift water from a depth of seven meters or less. A treadle is a lever device pressed by the foot to drive a machine, in this case a pump. The treadle pump can do most of the work of a motorized… …
55Geotechnical investigation — Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil and rock around a site to design earthworks and foundations for proposed structures and for… …
56Underground nuclear testing — Preparation for an underground nuclear test at the Nevada Test Site in the 1990s. Nuclear weapons …
57Vatnsfjörður — Vatnsfjordur is a nature reserve located north west of Breiðafjörður on the Hjarðarnes coast of north western Iceland. Vatnsfjörður was legally declared a nature reserve in 1975 and is part of the land owned by the of the head estate Brjánslækur …
58Steam injection (oil industry) — Steam injection is an increasingly common method of extracting heavy oil. It is considered an enhanced oil recovery (EOR) method and is the main type of thermal stimulation of oil reservoirs. There are several different forms of the technology,… …
59Marcellus Formation — Stratigraphic range: Middle Devonian …
60Conductor pipe — The Conductor Pipe[1] is a large diameter pile that is set into the ground to provide the initial stable structural foundation for a borehole or oil well. It can also be referred to as a drive pipe because it is often driven into the ground with… …
