Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump

A technology for transporting fluid and sliding vane pumps, which is applied in the direction of mining fluids, pumps, pump components, etc., can solve the problems of large radial size and small lifting force of sliding vane pumps, and achieve the reduction of radial size and radial volume, High lifting capacity, effect of increasing application range

Active Publication Date: 2012-07-04
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the present invention also solves the problems of small lifting force and large radial dimension of the existing sliding vane pumps

Method used

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  • Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump
  • Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump
  • Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump

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Embodiment Construction

[0036] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0037] Such as figure 1 As shown, the present invention proposes a crude oil lifting system for lifting crude oil in an oil well, and the crude oil lifting system includes: an oil pipe 13 arranged in an oil well casing 12, an oil pump connected to the oil pipe 13 , the oil well pump is a sliding vane pump 15.

[0038] Such as figure 2 and image 3 As shown, the first sliding vane pump of the present invention has a cylindrical stator 4, and the stator 4 is provided with: a drive shaft 8 (also called a pump shaft), and the drive shaft 8 is parallel to the length of the stator 4 The direction is set in the rotor 5 in the stator 4 and sleeved on the drive shaft 8; the lower end of the stator 4 is provided with a suction disk 7, ...

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Abstract

The invention provides a raw oil lifting system and a method for conveying a fluid by utilizing a sliding vane pump. The raw oil lifting system comprises an oil pipe and an oil pump connected with the oil pipe, wherein the oil pump is the sliding vane pump; the sliding vane pump is provided with a barrel-shaped stator; a drive shaft arranged in the stator along a direction parallel to the length of the stator, and a rotor sleeved onto the drive shaft are arranged in the stator; the lower end of the stator is provided with a suction disk; the upper end of the stator is provided with an exhaustion disk; the suction disk, the exhaustion disk and the stator form a barrel-shaped inner cavity; the rotor is arranged between the suction disk and the exhaustion disk; the suction disk is provided with a suction hole for sucking raw oil; and the exhaustion disk is provided with an exhaustion hole for exhausting the raw oil. The method for conveying the fluid by utilizing the sliding vane pump comprises the steps of sucking and exhausting the fluid from the direction of the end part of the stator to perform a lifting process.

Description

technical field [0001] The invention relates to the field of crude oil lifting systems for oil wells in the petroleum industry, and belongs to a lifting system for lifting crude oil by using a sliding vane pump. Specifically, it relates to a crude oil lifting system and a method for transporting fluid by using a sliding vane pump. Background technique [0002] At present, there are mainly the following lifting methods in the oil field: pumping unit, screw pump, electric submersible pump and gas lift, etc. Each lifting method has its own unique advantages, but there are also obvious shortcomings: pumping unit The lifting system is solid and durable, but there are many transmission nodes, not only the two-stage deceleration of the gearbox, but also the four-link transmission and donkey head movement. The maximum transmission efficiency is 70-75%, the system efficiency is low, and the energy consumption is large; the screw pump The transmission mechanism of the lifting ground p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/344F04C15/06
CPCF04C2/3446F04C2240/52F04C13/008F04C15/06F01C21/108E21B43/126F04C2/3442
Inventor 沈泽俊郝忠献张立新裴晓含王全斌童征王同斌靳景伟
Owner PETROCHINA CO LTD
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