Vertical pipe chain pumping unit

A chain type, pumping unit technology, applied in the fields of production fluids, wellbore/well components, earth-moving drilling, etc., can solve the problems of bulkiness, difficulty in manufacturing and installation, and high failure rate of the whole machine

Inactive Publication Date: 2004-06-30
李华林
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The beamless pumping units in the prior art mainly include chain pumping units, belt pumping units and other types of linear drive pumping units. Their common feature is that the pumping units are installed on the side of the oil production wellhead, so the whole machine is The lateral force not only makes the structure of the pumping unit complicated and heavy, but also makes it more d

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
  • Vertical pipe chain pumping unit
  • Vertical pipe chain pumping unit
  • Vertical pipe chain pumping unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] Figure 1 and figure 2 As shown, the standpipe type chain pumping unit of the present invention is mainly made up of wellhead cross, wellhead nipple, standpipe, top wheel, suspension rope, reciprocating frame, sucker rod and chain transmission mechanism. The large cross at the wellhead is installed and fixed at the oil wellhead, and the small cross 2 at the wellhead is provided in its center. The wellhead sub-joint 3 is located on the large wellhead cross and is connected to the large wellhead cross 1 through the flange 4; a movable door is provided on its side, and the small wellhead cross 2 can be maintained when the movable door is opened. The standpipe 5 is seated on the wellhead sub-joint 3 and connected to the wellhead sub-joint 3 through the flange 6. A standpipe cap 7 is provided on its top, and an annular balance weight 8 that can slide up and down along the standpipe 5 is set on its periphery; The outer wall of the riser 5 below the balance weight 8 is provide...

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 is a vertical tube type chain oil pumping unit, a beam-free one composed of wellhead large four-way, wellhead short section, vertical tube, hoisting sheave, suspension weight rope, return frame, oil pumping rod and chain drive mechanism. The large four-way is fixed at the wellhead and set with wellhead small four-way at the center; the well short section situated on the large four-way; the vertical tube situated on the short section, the top of the vertical tube set with a cap, and a ring balance weight slipping over the periphery of the vertical tube and able to slide upwards and downwards along the vertical tube; the hoisting sheave installed on the cap through the bracket and able to rotate forwards and reversely; one end of the suspension weight rope linked with balance weight and the other one linked with the upper end of the return frame round the chain wheel; the lower end of the return frame linked with the upper end of the oil pumping rod and able to reciprocate upwards and downwards; and the lower end of the oil pumping rod passing through the small four-way to link up with the underground reciprocating pump.

Description

technical field [0001] The invention relates to a beamless pumping unit used for oil production in an oil field, in particular to a riser type chain pumping unit. Background technique [0002] Press, pumping units used in oil fields are mainly divided into two categories, namely beam pumping units and beamless pumping units. Beamless pumping units have the advantages of good balance effect and easy realization of long stroke, so they are widely used In the field of deep well oil production. The beamless pumping units in the prior art mainly include chain pumping units, belt pumping units and other types of linear drive pumping units. Their common feature is that the pumping units are installed on the side of the oil production wellhead, so the whole machine is The lateral force not only makes the structure of the pumping unit complicated and heavy, but also makes it more difficult to manufacture and install. In addition, due to the high speed of the motor, it must be decel...

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): E21B43/00
Inventor 李华林
Owner 李华林
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