Features
- This Photo Puzzle features an image chosen by Science Photo Library. Estimated image size 356x254mm.
- 10x14 Photo Puzzle with 252 pieces. Packed in black cardboard box of dimensions 5 5/8 x 7 5/8 x 1 1/5. Puzzle image 5x7 affixed to box top. Puzzle pieces printed on RA4 paper at 300 dpi
- Image Description: Oil pump. An oil pump, known as a jack pump ora nodding donkey, showing it in motion. The pumpdraws oil out of the ground through a series ofnon-return valves (not shown here). Newly-drilledoil wells often contain oil at a high enoughpressure to force the fluid out without needing tobe pumped. As the oil is removed, the pressurefalls. For a time, the pressure can be maintainedby pumping water or air into the subterraneanreservoir of oil.
- For any queries regarding this item please contact Science Photo Library c/o Media Storehouse quoting Media Reference 1121298
- David Nunuk/Science Photo Library
Price:
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Product Description
Photo Puzzle, A jack pump extracting oil, pump head in motion. Oil pump. An oil pump, known as a jack pump ora nodding donkey, showing it in motion. The pumpdraws oil out of the ground through a series ofnon-return valves (not shown here). Newly-drilledoil wells often contain oil at a high enoughpressure to force the fluid out without needing tobe pumped. As the oil is removed, the pressurefalls. For a time, the pressure can be maintainedby
