Blowout preventer of rod type defueling pump

A technology of blowout preventer and oil well pump, which is applied in variable capacity pump parts, parts of pumping devices for elastic fluids, pumps, etc., and can solve the problems of installing blowout preventer and inability to install screw pump blowout preventer , to achieve the effects of energy saving, good blowout prevention effect and convenient operation

Inactive Publication Date: 2011-01-05
梁伟成
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When pumping wells and screw pump wells in the oil field are operating, in order to prevent crude oil from blowing out of the wellhead ground, blowout preventers are now used for operations, but the existing problem is that there is no blowout preventer that can be installed on the screw pump. Small-diameter oil well pumps cannot install blowout preventers under the pump, so the existing blowout preventers have certain limitations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Blowout preventer of rod type defueling pump
  • Blowout preventer of rod type defueling pump
  • Blowout preventer of rod type defueling pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] See Figure 1-8 , The specific structure of the present invention is as follows: the upper end of the cylindrical outer cover 6 has an external taper thread, which is connected with the oil well pump barrel, and the lower end has an internal taper thread, which is connected with the valve seat. The positioning sleeve 5 is fixedly connected with the connecting thread and the stopper in the outer sleeve 6, the lower end of the positioning sleeve 5 is closed and an oil inlet E is opened on the side wall; a symmetrical bayonet connection hole 11 is arranged on the outer periphery of the upper end of the positioning sleeve 5 (see Figure 6 ), the hook-shaped bayonet 4 is assembled on the bayonet connecting hole 11, the cylindrical anti-blowout sliding sleeve 1 is assembled in the positioning sleeve 5, and two symmetrical curved chutes 9 are arranged on the outer peripheral surface of the anti-blowout sliding sleeve 1, and the curved chute 9 is the circumferential closed type...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a blowout preventer of a rod type defueling pump. The blowout preventer comprises a coat of which two ends are provided with external taper threads and internal taper threads respectively, and is characterized in that: a positioning sleeve is fixedly connected in the coat, and the lower end of the positioning sleeve is closed and the side wall of the positioning sleeve is provided with an oil inlet port; the upper end of the positioning sleeve is provided with a bayonet pin connecting hole on which a hook-shaped bayonet pin is assembled; a cylindrical blowout prevention sliding sleeve is assembled in the positioning sleeve; the outer peripheral face of the blowout prevention sliding sleeve is provided with a symmetrical curve sliding chute; a pin head of the hook-shaped bayonet pin is inserted in the curve sliding chute; a compression spring is assembled between the blowout prevention sliding sleeve and the positioning sleeve; the upper end of the blowout prevention sliding sleeve is provided with an internal tapered unidirectional claw and a piston connecting plug; and the lower end of the piston connecting plug is provided with an external tapered unidirectional claw matched with the unidirectional claw on the upper end of the blowout prevention sliding sleeve. The blowout preventer is applicable to various defueling pumps, has a simple structure and convenient operation, and realizes safe operation and good blowout prevention effect.

Description

technical field [0001] The invention belongs to a downhole tool for oil recovery operations in oil fields, in particular to a blowout prevention device for rod type oil well pumps, which can prevent crude oil from blowing out of the wellhead ground and causing environmental pollution during well workover operations. Thus saving energy and achieving green operations. Background technique [0002] When pumping wells and screw pump wells in the oil field are operating, in order to prevent crude oil from spraying out of the wellhead ground, blowout preventers are installed for operation, but the existing problem is that there is no blowout preventer that can be installed on the screw pump. Small-diameter oil well pumps cannot install a blowout preventer under the pump, so the existing blowout preventers have certain limitations. Contents of the invention [0003] The object of the present invention is to provide a blowout prevention device for rod type oil well pumps, which c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/00F04B47/00
Inventor 梁伟成毛伟华梁闯
Owner 梁伟成
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap