FIELD: engines and pumps.
SUBSTANCE: invention relates to oil industry, particularly to sticky oil production equipment. Solid body 4 is forced in and along elastic pipeline 2. Solid body cylindrical surface contacts outer surface of pipeline 2 extending from cartridge 3 with force sufficient to generate peristaltic effect in aforesaid pipeline 2. Said effect forces sticky oil upward, then solid body 4 gets out of contact with surface of pipeline 2 to move downward in cartridge 4. Cycle is then repeated.
EFFECT: efficient pumping of sticky oil, longer life of pipelines.
4 cl, 3 dwg
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