Tube like pump for feeding and sucking

• Main Authors: RENQIAN WANG, YUNMING ZHANG, QINGXIN SONG
• Format: Patent
• Language: English
• Published: 26.01.2005
• Edition: 7
• Subjects: BLASTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The tube like pump for feeding and sucking of the utility model is a device used to finish the two different kinds of work that the high temperature steam is injected into the stratum and the underground petroleum is sucked to the ground. The utility model is composed of an upper outer tube, a lower outer tube, a short pump barrel, a long pump barrel, a plunger body and attachments. When using, the utility model can change the positions of the plunger body in the short pump barrel and the long pump barrel, and thereby two different working states can be finished and two different operating purposes can be realized. During the exploiting process of heavy oil and extra-heavy oil, the tube like pump for feeding and sucking connecting with a pipe column for feeding and sucking are put downwards into a well; a great amount of operation cost which are caused by the finish of two different kinds of work that the high temperature steam is injected into the stratum and the underground petroleum is sucked to the ground can be directly reduced, and the considerable economic benefit can be obtained.