Artificial Lift Of Oil Wells

Oil wells can range in depth from approximately 200 ft (60 m) to more than 20,000 ft (6000 m). They require pumps that are unique in their configuration. About 90% of pumping oil wells are equipped with either 2-in (50.8-mm)

rod pumps, hydraulic reciprocating pumps, or hydraulic jet pumps that must run inside this tubing cannot have their outside diameters exceed 1g in (47.6 mm) or 216 in (58.7 mm). These pumps are installed as close as possible to the bottom in order to achieve the maximum possible drawdown of fluid in the well. The output pressure required of the pump varies directly with the depth that the fluid must be lifted. For example, to compensate for the lift required and the fluid friction in the tubing, a 10,000-ft (3049-m) well might require a 4000-lb/in2 (276-barĀ°) pump.

In a newly discovered field, wells will usually flow of their own accord and require no artificial lift. The volume from these wells is controlled by holding back pressure at the wellhead with a choke. The annulus between the production tubing and the oil well casing is closed off at the wellhead; thus all of the gas produced by the well flows up the production tubing with the oil. When the bottom hole pressure is no longer adequate to produce the well by natural flow, some form of artificial lift must be installed. This can be a sucker rod pump, a subsurface hydraulic reciprocating pump, a subsurface hydraulic jet pump, an electric submersible centrifugal pump, or a gas lift. The sucker rod pump is by far the most common form of artificial lift. More than 80% of the wells that must be artificially lifted are pumped with sucker rod pumps.

Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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