Single crank double distance flexible type beam-pumping unit

A flexible, single-crank technology, applied in the direction of mechanical equipment, production fluid, wellbore/well components, etc., can solve the problems of high parameter adjustment and test intensity, low effective load rate, high effective load rate, etc., and achieve self-weight And the effect of reducing one-time investment, increasing effective load rate, and simple and compact structure

Inactive Publication Date: 2006-06-28
DAQING OILFIELD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing pumping units such as poor motion performance, low effective load rate, high energy consumption, unit size and self-heavy weight, large one-time investment, and high intensity of parameter adjustment and testing, the invention provides a single crank Beicheng flexible pumping unit, the pumping unit not only has good motion performance, high effective load rate, low energy consumption, but also small unit size and dead weight, less one-time investment, easy to adjust parameters and test operations, and at the same time Oil rods are outlawed

Method used

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  • Single crank double distance flexible type beam-pumping unit
  • Single crank double distance flexible type beam-pumping unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Depend on figure 1 combine figure 2 As shown, the single-crank double-range flexible pumping unit includes a motor 1 and a bracket 2. There is a connecting arm 3 on one side of the bracket 2. The connecting arm 3 is connected to the wellhead cross through bolts, and the center of gravity is transferred to the wellhead. The basic requirements of the pumping unit are reduced, and the basic construction cost of the pumping unit is greatly saved; the upper hinge of the support 2 has a telescopic cantilever 5, the cantilever 5 is connected with a cantilever shaft 6, and the shaft 6 is connected with a fixed pulley 7, and the cantilever 5 There is an adjustable pull rod 17 in the hinge between the support 2 and the wellhead. The connection between the support 2 and the wellhead can adjust the center distance between the chain 10 and the wellhead through the expansion and contraction of the cantilever shaft 6 and the pull rod 17, making the adjustment convenient; There are f...

Embodiment 2

[0014] Depend on figure 1 combine figure 2 As shown, the single-crank double-range flexible pumping unit includes a motor 1 and a bracket 2. There is a connecting arm 3 on one side of the bracket 2, and the connecting arm 3 is connected to the wellhead cross through bolts; the upper hinge of the bracket 2 has a telescopic cantilever 5. The cantilever shaft 6 is connected to the cantilever 5, and the fixed pulley 7 is connected to the shaft 6. There is an adjustable pull rod 17 at the hinge between the cantilever 5 and the bracket 2; fixed pulleys (8, 9) are respectively fixed on both sides of the upper end of the bracket 2 The motor 1 is fixed at the horizontal rear end of the middle part of the support 2, and a brake device is arranged on the motor 1 rear end shaft. The crankshaft 12 is connected, and the crank 14 has 1-3 adjustment holes 15 in the longitudinal direction, the crank pin 16 is connected in the adjustment hole 15, the crank pin 16 is connected with a movable p...

Embodiment 3

[0016] Depend on figure 1 combine figure 2 As shown, the single-crank double-range flexible pumping unit includes a motor 1 and a bracket 2. There is a connecting arm 3 on one side of the bracket 2, and the connecting arm 3 is connected to the wellhead cross through bolts; the upper hinge of the bracket 2 has a telescopic cantilever 5. The cantilever shaft 6 is connected to the cantilever 5, and the fixed pulley 7 is connected to the shaft 6. There is an adjustable pull rod 17 at the hinge between the cantilever 5 and the bracket 2; fixed pulleys (8, 9) are respectively fixed on both sides of the upper end of the bracket 2 The motor 1 is fixed at the horizontal rear end of the middle part of the support 2, and a brake device is arranged on the motor 1 rear end shaft. The crankshaft 12 is connected, and the front end of the crankshaft 12 is connected with a crank 14 through an expansion joint sleeve. The crank 14 has 1-3 adjustment holes 15 in the longitudinal direction. The ...

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Abstract

The invention is a single crank double-travel flexible oil driver, mainly solving the problems of low effective load ratio and high energy consumption in the existing oil driver, and characterized in that: one side of a bracket is provided with a connection arm, the connection arm is connected with a big wellhead four-way joint through bolt; a cantilever of the bracket is connected with a cantilever shaft connected with a crown block, and an adjustable pull rod is hinged between the cantilever and the bracket, the transverse rear end in the middle of the bracket is fixed with a motor, a shaft of the motor is directly connected with a reducer, an output shaft of the reducer is connected through a connection disc with a crank shaft connected with a winch, the crank vertically has 1-3 adjusting holes, and a crank shaft pin with a traveling block at the top end is connected in each adjusting hole. It has high load ratio and low energy consumption.

Description

Technical field: [0001] The invention relates to a lifting device used in the field of oil production in an oil field, in particular to a single-crank double-range flexible pumping unit. Background technique: [0002] With the development of oilfields and the continuous development of technology, there are various types of mechanical oil production equipment ranging from beam pumping units to electric submersible pumps and screw pumps to meet the needs of different production periods. At present, the pumping units used for artificial lifting are mainly beam pumping units, which can be divided into conventional beam pumping units and front beam pumping units according to the structure of the four-bar crank mechanism of the donkey head. pumping unit, out-of-phase beam pumping unit and double donkey head beam pumping unit. This type of pumping unit has poor motion performance, low effective load rate, and high energy consumption; due to the large size and dead weight of the un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00F16H37/12
Inventor 王玉普董焕忠孙洪志张佳民韩修庭焦振强胡松华白存安
Owner DAQING OILFIELD CO LTD
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