sucker rod

technology

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July 14, 2026

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A sucker rod is a jointed rod used in oil extraction technology. It connects a pump plunger located at the bottom of a well to a walking beam or pumping jack on the surface. This system is a form of artificial lift, employed when the natural pressure within a petroleum reservoir is insufficient to force crude oil to the surface. The walking beam moves up and down, operating the pump via the sucker rod string, which in turn lifts the oil.12

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petroleum production
Primary recovery: natural drive and artificial lift
A string of solid metal “sucker rods” connects the walking beam to the piston of the pump. Another method, called gas lift, uses gas bubbles to lower the density of the oil, allowing the reservoir pressure to push it to the surface. Usually, the gas is injected down the annulus…
Read More
A string of solid metal “sucker rods” connects the walking beam to the piston of the pump. Another method, called gas lift, uses gas bubbles to lower the density of the oil, allowing the reservoir pressure to push it to the surface. Usually, the gas is injected down the annulus…
Read More