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2. Extraction of petroleum - Wikipedia

   en.wikipedia.org/wiki/Extraction_of_petroleum

   Tertiary recovery begins when secondary oil recovery is not enough to continue adequate extraction, but only when the oil can still be extracted profitably. This depends on the cost of the extraction method and the current price of crude oil. When prices are high, previously unprofitable wells are brought back into use, and when they are low ...

3. Pumpjack - Wikipedia

   en.wikipedia.org/wiki/Pumpjack

   Pump size is also determined by the depth and weight of the oil to remove, with deeper extraction requiring more power to move the increased weight of the discharge column (discharge head). A beam-type pumpjack converts the rotary motion of the motor (usually an electric motor ) to the vertical reciprocating motion necessary to drive the ...

4. Urucu Oil Province - Wikipedia

   en.wikipedia.org/wiki/Urucu_Oil_Province

   The Urucu Oil Province (Portuguese: Provincia Petroleira de Urucu) is a Brazilian oil and natural gas field located in the municipality of Coari, in the interior of the state of Amazonas. It is the largest proven onshore oil and natural gas reserve in Brazil, according to Petrobras .

5. List of oilfield service companies - Wikipedia

   en.wikipedia.org/wiki/List_of_oilfield_service...

   Oilfield service companies may produce, maintain, and repair equipment used in oil extraction and oil transportation. [1] In 2019, the global oilfield services market was US $ 267.8 billion. [ 2 ]

6. Artificial lift - Wikipedia

   en.wikipedia.org/wiki/Artificial_lift

   Artificial lift is the use of artificial means to increase the flow of liquids, such as crude oil or water, from a production well. Generally this is achieved by the use of a mechanical device inside the well (known as pump or velocity string) or by decreasing the weight of the hydrostatic column by injecting gas into the liquid some distance down the well.

7. Completion (oil and gas wells) - Wikipedia

   en.wikipedia.org/wiki/Completion_(oil_and_gas_wells)

   Pumping flow: the tubing and pump are run to a depth beneath the working fluid. The pump and rod string are installed concentrically within the tubing. A tubing anchor prevents tubing movement while pumping. Tubing flow: a tubing string and a production packer are installed. The packer means that all the flow goes through the tubing.