Anti-scaling, anti-corrosive and sand prevention ceramic oil-well pump and manufacturing method therefor

Abstract

The present invention relates to an anti-scale, anti-corrosion and anti-sand ceramic oil pump which is used in scaling, corrosion and sand producing wells in petroleum exploration and a manufacture method. The pump is composed of an oil pipe buckle-changeable connector 1, an oil pipe 2, a pump barrel assembly 3, and a plunger assembly 4. In the structural material, the working part of the plunger and the pump barrel is manufactured by engineering structure ceramic with extremely high surface hardness, and after being processed, the chosen engineering structure ceramic has very good anti-scale, anti-corrosion and anti-sand performance; in the structure, the pump adopts the special structure combination of blocking, scratching, and sinking to accomplish the function of scale prevention and sand prevention. The manufacture method comprises a manufacture method of the ceramic parts, a processing and assembling method of the ceramic pump barrel and a processing and assembling method of the ceramic plunger. During the working process, the performance of the pump is reliable, the service life is long, and the pumping efficiency is high, and the present invention can solve the difficult problem of the sucker rod pump petroleum production technology in oil wells with scaling and serious sand production.

Description

Technical field: [0001] The invention relates to an anti-scaling, anti-corrosion and anti-sand ceramic oil well pump used in the scale, corrosion and sand production wells of petroleum exploitation and its manufacturing method. Background technique: [0002] In oil extraction, rod pump oil extraction is one of the most important oil extraction methods. With the application of a large number of new oil production methods and chemical oil stimulation measures in oil fields, scaling, corrosion and sand production in oil wells are becoming more and more serious, resulting in early failure of a large number of downhole well pumps, short pump inspection periods, and even shutting down wells. These have seriously affected the normal production and economic benefits of the oil field. At present, although a lot of research and improvement work has been carried out on the oil well pump, due to the characteristics of the metal material itself, the limitation of the heat treatment proc...

AI Technical Summary

Problems solved by technology

With the application of a large number of new oil production methods and chemical oil stimulation measures in oil fields, scaling, corrosion and sand production in oil wells are becoming more and more serious, resulting in early failure of a large number of downhole well pumps, short pump inspection periods, and even shutting down wells. These have seriously affected the normal production and economic benefits of the oil field

At present, although a lot of research and improvement work has been carried out on the oil well pump, due to the characteristics of the metal material itself, the limitation of the heat treatment process in the pump manufacturing and the shortcomings in the structure, there has been little progress for many years, and there is no obvious effect in field application. , has become a technical problem that plagues the development of oilfields

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