Hollow sucker rod

A hollow sucker rod and hollow technology, which is used in drill pipes, drilling equipment, earth-moving drilling, etc., can solve the problems of heavy pipe and rod, cable burnout, affecting oil well production, etc., to improve pump efficiency, increase oil production, The effect of reducing the number of well workover and well cleaning

Inactive Publication Date: 2009-11-18
SHANDONG BAOSHIDA GASOLINEEUM EQUIP MFG
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the hollow sucker rod continuously moves up and down in the oil well and passes through the pump to send the crude oil in the well to the ground, as the difficulty of mining increases, the extraction of high-condensation oil and heavy oil requires electric heating. Therefore, some oil wells need to use hollow sucker rods and insert thermal cables in the hollow sucker rods,

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
  • Hollow sucker rod
  • Hollow sucker rod
  • Hollow sucker rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Referring to the accompanying drawings, such as figure 1 As shown, the hollow sucker rod includes a hollow joint 1 and a rod body 2. The rod body 2 has a hollow inner cavity 7. By adding various chemicals and hot oil to the inner cavity 7 of the rod body 2, the viscosity of crude oil can be reduced. Control wax deposition in oil wells and improve pump efficiency; the flow channel is small, the flow rate is fast, and it is not easy to deposit sand particles, which is suitable for sandy oil wells; it can replace oil pipes by matching with tubeless pumps; and the hollow sucker rod of the present invention has a large torsion resistance, Can drive screw pump.

[0014] The rod body 2 and one end of the hollow joint 1 are fixedly connected by friction welding. Through this connection method, the strength of the weld seam and the strength of the base material can be achieved, and the welding efficiency is high, the quality is stable, and the consistency is good. It can realize...

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 relates to the technical field of oil production engineering machinery in oil fields, in particular to a hollow sucker rod. The technical proposal is that the hollow sucker rod comprises a hollow joint and a rod body, wherein the rod body is provided with a hollow cavity and is fixedly connected with one end of the hollow joint, a centralizer is arranged on the rod body, and the outside diameter of the centralizer is larger than that of the rod body and the hollow joint. As an improvement, the centralizer is a carbon fiber centralizer. As a further improvement, the other end of the hollow joint is provided with a threaded connecting part which is provided with a thrust bearing surface and a sealing device. The hollow sucker rod has reasonable structure and reliable sealing, not only can play good centralizing effect, but also has high precision, reduces eccentric wears during oil pumping, reduces the machine halt frequency caused by the eccentric wear, greatly improves the service life of the hollow sucker rod, prolongs the working cycle, and reduces the oil production cost.

Description

1. Technical field: [0001] The invention relates to the technical field of oil field production engineering machinery, in particular to a hollow sucker rod. 2. Background technology: [0002] At present, with the continuous development of my country's petroleum industry, heavy oil, high wax and other difficult-to-recover reserves are continuously exploited, and the production of heavy oil, high wax and other difficult-to-recover reserves requires the use of hollow sucker rods in technology. The traditional ordinary hollow sucker rod is a new type of oil production equipment used for the exploitation of high-viscosity and high-condensation crude oil in oil fields. It injects heat carriers (hot oil, hot water, hot gas), chemical agents Or run into the cable for heating to achieve viscosity reduction and wax melting, thereby improving the fluidity of crude oil and improving the recovery efficiency of "three high" crude oil. It can also be used for water injection, wax removal, ...

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
IPC IPC(8): E21B17/00E21B17/10
Inventor 尚兴忠周国辉缪立军陈爱民
Owner SHANDONG BAOSHIDA GASOLINEEUM EQUIP MFG
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