Drilling an oil well can take anywhere from 15 days to 12 months, sometimes longer. The amount of time it takes depends on a number of different factors, including the depth of the well and whether it's on land or offsho... More »

Oil-drilling rigs and gas-drilling rigs are similar in that they both include equipment to create holes in the ground to access deposits of naturally occurring substances; they mainly differ in their extraction tools. An... More »

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Horizontal drilling is a method of creating wells for water, oil or natural gas by altering the usual vertical angle of the well. By drilling sideways, the well can increase the "pay zone," thus increasing the amount of ... More »

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Horizontal drilling is a method of creating wells for water, oil or natural gas by altering the usual vertical angle of the well. By drilling sideways, the well can increase the "pay zone," thus increasing the amount of ... More »

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In oil drilling, the spud date is when a machine capable of reaching total depth begins drilling a new well. This process is also known as spudding in. More »

A well is fracked by sand, water and lube that is sent into the well under high pressure to release gas from the gas formations in the ground, explains Shale Stuff. Fracking horizontal wells increases production as much ... More »

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In construction, preliminaries present the general details of a project as well as going into the specifics that should be known, like what will be required to execute the project and what conditions are relevant. Prelim... More »