Oil_pump_schematics.part3.rar -

: The actual pump sitting at the bottom of the wellbore, submerged in oil. The Invisible Magic: The Traveling Valve

: In the late 19th and early 20th columns, oil strikes often resulted in massive "gushers." While cinematic, they wasted thousands of barrels of oil and posed massive fire hazards. oil_pump_schematics.part3.rar

: Located at the bottom of the pump, fixed in place. : The actual pump sitting at the bottom

: Walter Trout, an engineer for the Lufkin Foundry and Machine Company, revolutionized the industry. He invented the counterbalanced crank beam pumping unit. By adding a heavy counterweight to the rotating crank, he balanced the massive weight of the thousands of feet of steel rods hanging in the well. : Walter Trout, an engineer for the Lufkin

When the pump arm nods down, the traveling valve pushes down. The pressure closes the standing valve (so oil doesn't push back into the ground) and forces the traveling valve to open. The oil passes through the traveling valve, ready to be lifted to the surface on the next upstroke. ⏳ A Century of the "Nodding Donkey"

Before these mechanical marvels took over the landscape, extracting oil was a messy, inefficient, and often dangerous guessing game.

: Attached to the moving sucker rod, traveling up and down.