Advanced ceramic pipe type defueling pump

A technology of ceramic tubes and oil well pumps, which is applied in variable capacity pump parts, pumps, pump components, etc., can solve the problems of broken ceramic sleeves, low impact resistance, cracking and misalignment, etc., and achieves improved opening and closing speeds, The effect of increasing the area of ​​the liquid flow channel and increasing the degree of filling
CN101649828AInactive Publication Date: 2010-02-17吉林省大多天盛金属陶瓷技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
吉林省大多天盛金属陶瓷技术有限公司
Publication Date
2010-02-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an advanced ceramic pipe type defueling pump, comprising a pump cylinder, a plunger piston, an upper traveling valve assembly, a lower traveling valve assembly and a strandingvalve assembly. The advanced ceramic pipe type defueling pump is characterized in that the inner wall of a steel-based pipe of the pump cylinder is provided with an advanced ceramic protection layerwith high temperature resistance, abrasion resistance and corrosion resistance, which is used as an lining; the outer surface of a rod body of the plunger piston is previously provided with grooves atintervals, alloy coatings with abrasion resistance and corrosion resistance is sprayed on the grooves, and zirconia toughening alumina ceramic rings are embedded into the surfaces of the alloy coatings inside the grooves.
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Description

technical field

[0001] The invention relates to the technical field of manufacturing oil production equipment, in particular to an oil well pump. Background technique

[0002] The oil well pump is the key equipment to lift the crude oil to the ground by using the pressure difference between the front and back of the ball valve. Its quality directly affects the output and production cost of the oil field. The most vulnerable damages in the oil field are corrosion, wear and sand sticking. my country's oilfields have entered into the tertiary exploitation, and a series of oil-increasing measures such as water injection, carbon dioxide injection, and polymer injection have made the downhole environment increasingly harsh, and the sand content and corrosive substances in the well fluid are also increasing. It is also getting shorter and shorter, and the oil recovery cost of the oil field is increasing year by year. In order to prolong the service life of the oil pump, the current...

Claims

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