Hydraulic pressure displacement injection pump

A technology for injecting pumps and hydraulic pressure, applied in pumps, pump control, piston pumps, etc., can solve the problems of short service life of reversing electronic components, and achieve the effects of long service life, low manufacturing cost and reliable equipment guarantee

Active Publication Date: 2020-04-17
德州庆润石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a hydraulic pressure-driven injection pump, which has a reversing control unit with a new structure, which solves the problem of short service life of the reversing electronic components of the hydraulic pressure-driven pump in the prior art. technical problem

Method used

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  • Hydraulic pressure displacement injection pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] image 3 A schematic diagram of the working principle of the reversing control unit 8 in the hydraulic pressure-driven injection pump according to an embodiment of the present invention and its enlarged view are illustrated. Figure 4 A schematic diagram of the first state of the reversing control unit 8 in the hydraulic pressure-driven injection pump according to an embodiment of the present invention is illustrated. Figure 5 A schematic diagram of the second state of the reversing control unit 8 in the hydraulic pressure-driven injection pump according to an embodiment of the present invention is illustrated.

[0042] Such as Figures 3 to 5 As shown, the hydraulic pressure-driven injection pump of this embodiment includes a reversing control unit 8, and the reversing control unit 8 is used to control the piston rod 502 to switch the movement direction at the stroke end of the piston rod 502. The reversing control unit 8 includes a first trigger 803 , a second trig...

Embodiment 2

[0052] This embodiment is further improved on the basis of Embodiment 1. During the continuous operation of the pressure-driven injection pump, due to the sticking of the spool of the hydraulic valve or other reasons, there is a possibility of reversing failure.

[0053]In the hydraulic pressure-driven injection pump of this embodiment, the reversing control unit 8 further includes a fixed bracket 801 and a floating bracket 802 . The fixed frame 801 is fixedly connected with the frame 9 , and the floating bracket 802 is horizontally slidably connected with the fixed frame 801 . The first rotating shaft 803b is rotatably connected to the floating bracket 802 , and the second rotating shaft 804b is rotatably connected to the floating bracket 802 . Two ends of the floating bracket 802 are respectively connected to the fixed frame 801 through support springs 810 . The swing gear 807 is rotatably connected to the floating bracket 802 , and the connecting rod 805 is horizontally s...

Embodiment 3

[0058] In the middle of two consecutive commutations, the commutation control unit 8 needs to maintain the position. In order to meet the above requirements, this embodiment is further improved on the basis of embodiment 1.

[0059] Such as Figure 6 and Figure 7 As shown, in this embodiment, the swing gear 807 further includes an arc-shaped protrusion 807d, and the arc-shaped protrusion 807d is located at the opposite end of the tooth-shaped portion 807a. Specifically, the swing gear 807 is sequentially provided with a toothed portion 807a, a supporting hole 807b, a slide groove 807c and an arc-shaped protrusion 807d.

[0060] The reversing control unit 8 further includes a limit assembly 808, and the limit assembly 808 includes a housing 808a, a sliding rod 808b, a roller 808c and a limit support spring 808d. The housing 808a is fixedly connected with the floating bracket 802 . The sliding rod 808b is slidably connected to the housing 808a. One end of the limit support...

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Abstract

The invention relates to the technical field of oilfield pressure displacement operation equipment, in particular to a hydraulic pressure displacement injection pump. The injection pump comprises an oil tank, a motor, an oil pump, a main reversing valve, a hydraulic cylinder and a rack and further comprises a reversing control unit; the reversing control unit comprises a first triggering piece, asecond triggering piece, a connecting rod, a spiral spring, a swinging gear and a pilot reversing valve; the connecting rod is sleeved with the spiral spring; the spiral spring is connected with the connecting rod in an axial limiting manner; the swinging gear is set in the swinging state and comprises a tooth-shaped part and a sliding groove; the tooth-shaped part meshes with the spiral spring; and the sliding groove is connected with a control rod of the pilot reversing valve through a hinge pin. The hydraulic pressure displacement injection pump is high in reliability and long in service life and can provide the reliable equipment guarantee for the oilfield pressure displacement operation.

Description

technical field [0001] The invention relates to the technical field of injection pumps for oilfield pressure-driving operations, in particular to a hydraulic type pressure-driving injection pump. Background technique [0002] The pressure flooding technology is to use the conventional fracturing construction technology to inject a large volume of high-efficiency oil-displacing agent into the formation to recover the energy of the formation, and use the displacement and replacement of the high-efficiency oil-displacing agent to tap the remaining oil and improve the degree of reservoir production. Measures to increase production technology. In the practice of pressure-flooding operations in Daqing Oilfield in my country, the cumulative oil increase in the stage of pressure-flooding technology is four times that of conventional fracturing measures, and the effectiveness has been fully verified. [0003] At present, some oil fields use fracturing trucks for pressure-driving ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B9/113F04B49/00F04B49/10
CPCF04B9/113F04B49/002F04B49/10
Inventor 周淑霞韩振
Owner 德州庆润石油科技有限公司
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