Method for processing chemical composite flooding ceramic anti-scaling screw pump rotor
A processing method and screw pump technology, which are applied to the components of the pumping device for elastic fluid, pump components, variable displacement pump components, etc. Torque and current fluctuations, etc., to achieve the effect of improving lifting adaptability, good anti-scaling effect and low surface energy
Inactive Publication Date: 2009-12-02
DAQING OILFIELD CO LTD
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Problems solved by technology
However, during the application process in the mine, the lifting equipment has serious fouling problems, which has brought serious adverse effects on the normal production of the oil well, resulting in a significant shortening of the pump inspection cycle
Due to fouling of the rotor during the lifting process of conventional screw pumps, problems such as load torque and current fluctuations, increased wear of the stator and rotor, and reduced pump efficiency occur. During the peak scaling period, the average pump inspection cycle is less than 100 days, which seriously affects The overall development effect of chemical compound flooding
Method used
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Embodiment Construction
[0011] Embodiments of the present invention are provided below in conjunction with the accompanying drawings:
[0012] a. When using this method on site, for the TGLB800-14 screw pump, firstly, the processed TGLB800-14 screw pump rotor casing 1 is subjected to rust removal, oil removal and sanding treatment before surface spraying to make the overall roughness. evenly.
[0013] b. Secondly, before spraying, dry the ceramic powder, and then conduct ceramic spraying on the surface of the screw pump rotor casing 1 by thermal spraying, and the required thickness is 0.15mm. During the spraying process, the thickness of the ceramic coating 2 is 0.03mm for each spraying, and the thickness of the ceramic coating 2 is sprayed six times. After the spraying is completed, the thickness of the ceramic coating 2 is 0.18mm, which is 0.03mm higher than the actual required thickness.
[0014] c. Polish the screw pump rotor after spraying, the polishing amount is 0.03mm, so that the surface ro...
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Abstract
The invention discloses a processing method of a chemical compound flooding antiscale screw pump rotor, which relates to the technical field of mechanical oil extraction and pertains to the processing method of the chemical compound flooding antiscale screw pump rotor. The invention provides the processing method of the chemical compound flooding antiscale screw pump rotor which can effectively improve the performance of scale prevention and wearing resistance of the surface of the screw pump rotor. Ceramic coating is conducted to the surface of the shell 1 of the screw pump rotor through thermal coating and then polishing and hole sealing are conducted to the coated screw pump rotor so as to finally form the ceramic screw pump rotor. The processing method is applicable to the lift of water flooding, polymer flooding and chemical compound flooding yielding well and has the advantages of delaying the scale and wear of the ordinary rotor during the working course, prolonging pump maintenance period, and reducing production costs, etc.
Description
technical field [0001] The invention relates to the technical field of mechanical oil recovery, and belongs to a method for processing a rotor of a ceramic anti-scaling screw pump for chemical compound flooding. Background technique [0002] As one of the important measures to enhance oil recovery in oilfields, chemical composite flooding technology has been applied in a larger scale year by year. However, during the application process in the mine, the lifting equipment has serious fouling problems, which has brought serious adverse effects on the normal production of the oil well, resulting in a significant shortening of the pump inspection cycle. Due to fouling of the rotor during the lifting process of conventional screw pumps, problems such as load torque and current fluctuations, increased wear of the stator and rotor, and reduced pump efficiency occur. During the peak scaling period, the average pump inspection cycle is less than 100 days, which seriously affects The...
Claims
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IPC IPC(8): F04C15/00F04B53/00C23C4/02C23C4/10C23C4/18
Inventor 王国庆师国臣莫非赵云龙李强
Owner DAQING OILFIELD CO LTD