Types Of Wells Can Be Used For Drill Holes Deep Into The Earth

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The pipe spewed its water mixture for almost 30 hours. It fell like rain in a storm, sounding like a faucet running water in the tub. The workers scrambled around the drill trying to shut off the valve, but it would not shut. They decided they needed to replace it instead. The containment well was capturing most of the water mixture, but the water was falling on the drill, the trailer roofs and was being absorbed into the worker 's exposed skin. The soil under the plastic was also absorbing the leakage too. This is what could happen when a valve broke in the open position. In the United States, there are three types of oil and gas wells; horizontal, directional, and vertical. All three types of wells can be fracked. Horizontal drilling is normally used to drill holes deep into the earth, for the hydraulic fracturing process. Fracturing or “fracking” uses a high pressure water mixture that is injected deep into the ground through pipes to create fractures that release the oil and natural gas from the shale deposits. The gases are directed into wells that have been built for collection. The water mixture includes a water-and-sand makeup of 98 to 99.5 percent and a chemical additive makeup of 0.5 to 2 percent. Some of the mixture pumped in and some of the material broken up, returns to the surface, while some remains underground where it props open the fracture created (ProQuest, 2013). Recovery of the used water is only reported to be one third of the total amount. The
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