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Movable barrel rod type anti-scaling oil pump with scale storage cavity

An oil pump and moving cylinder technology, which is applied in the field of moving cylinder rod type anti-scaling oil pump, can solve the problems of loose valve closing and damage to the pump, etc.

Pending Publication Date: 2018-01-19
TANGSHAN YUANYANG SUBMERSIBLE PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wax and sand deposits in the pump will cause the valve to close laxly, or even get stuck, which seriously damages the pump's work

Method used

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  • Movable barrel rod type anti-scaling oil pump with scale storage cavity
  • Movable barrel rod type anti-scaling oil pump with scale storage cavity
  • Movable barrel rod type anti-scaling oil pump with scale storage cavity

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0022] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, a...

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Abstract

The invention discloses a movable barrel rod type anti-scaling oil pump with a scale storage cavity. The oil pump comprises an oil delivery pipe, a pump barrel upper connector arranged inside the oildelivery pipe, a traveling connection section connected to the lower portion of the pump barrel upper connector through a traveling valve, a fixed connection section connected to the lower end of thetraveling connection section, a pump barrel connected to the lower end of the fixed connection section, a plunger connector arranged on the upper portion in the pump barrel, a plunger connection pipeconnected to the lower end, below the plunger connector, of a plunger through a fixed valve, a bearing connector assembly connected to the lower end portions of the pump barrel and the oil delivery pipe, a bearing assembly fixedly connected to the bearing connector assembly, and a scale suction pipe connected to the lower end portion of the bearing assembly and communicating with the pump barrel.Before crude oil enters the pump, the crude oil passes through the scale suction pipe, the scale suction pipe is used for absorbing scale ions to form scale and can perform filtering and reduce scaleions in the crude oil flowing into the pump, and scales formed on the inner and outer walls of the scale suction pipe and inside grid holes fall onto the bottom of an oil layer after falling off.

Description

technical field [0001] The invention belongs to the field of submersible electric pumps, and in particular relates to a moving cylinder rod type anti-scaling oil well pump with a scale storage chamber. Background technique [0002] The oil pump is a common downhole device driven by the pumping unit to pump the crude oil in the well to the surface. During the working process of the oil well pump, a large amount of impurities will be accumulated, and oil scale will be formed over time. The liquid it pumps contains sand, wax, water, gas and corrosive substances, and it works in a well of hundreds of meters to thousands of meters, and the pressure inside the pump may be as high as 10MPa or more. Therefore, its working environment is complicated and the conditions are harsh, and the quality of the pump work directly affects the production of the oil well. The gap between the piston and the bushing and the leakage between the valve and other connecting parts will reduce the actua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B37/00E21B43/02F04B53/20F04B53/00
Inventor 徐旭东杨乃群孙建宗李静
Owner TANGSHAN YUANYANG SUBMERSIBLE PUMP
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