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Hydraulic pump for well drilling downhole tools

A technology for downhole tools and hydraulic pumps, applied to pumps, pump components, rotary piston pumps, etc., can solve the problems of complex structure, unreasonable flow distribution, and large space occupation of vane pumps, and achieve reasonable sealing and connection structures. Simple and reliable, stable working performance

Pending Publication Date: 2020-05-08
中石化石油工程技术服务有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex structure of the vane pump, poor oil absorption characteristics, unreasonable flow distribution, and large space occupation, it cannot work normally in the narrow installation space of some drilling downhole tools, resulting in the failure of normal completion of oil operations, prolonging the operation time, and increasing operating costs.

Method used

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  • Hydraulic pump for well drilling downhole tools
  • Hydraulic pump for well drilling downhole tools
  • Hydraulic pump for well drilling downhole tools

Examples

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Embodiment Construction

[0027] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, and are not exhaustive of all the embodiments. And in the case of no conflict, the embodiments and the features in the embodiments of the present invention can be combined with each other.

[0028] The inventor noticed during the invention that the existing vane pumps cannot work normally in the narrow installation space of some drilling downhole tools, and due to the poor oil absorption characteristics and unreasonable flow distribution, the oil operations cannot be completed normally and the operation time is prolonged. , increasing operating costs.

[0029] In view of the above disadvantages, an embodiment of the present invention proposes a h...

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Abstract

The invention provides a hydraulic pump for well drilling downhole tools. The hydraulic pump comprises a drive shaft, a rotor, blades, a stator, two thrust plates and two transition plates, wherein the rotor and the blades are connected to the drive shaft; the stator is arranged on the outer sides of the rotor and the blades; the two thrust plates are symmetrically installed on the two sides of the rotor and further fixedly connected with the stator; and the two transition plates are connected to the outer sides of the two thrust plates correspondingly, and the transition plates and the thrustplates on the same side are connected with the drive shaft through bearings. The hydraulic pump is suitable for petroleum and natural gas well drilling downhole operating tools, operating is stable and reliable and the displacement is large.

Description

technical field [0001] The invention belongs to the technical field of oil and gas drilling tools, in particular to a hydraulic pump for drilling downhole tools. Background technique [0002] In oil and natural gas drilling operations, in order to complete special operations, it is necessary to ensure the reliability and effectiveness of the power source for drilling downhole tools. The hydraulic pump is one of the most commonly used power sources, and it determines the power supply capacity in the hydraulic system. Among several kinds of hydraulic pumps, vane pumps are widely used because of their stable operation, small displacement fluctuation and long service life. However, due to the complex structure of the vane pump, poor oil absorption characteristics, unreasonable flow distribution, and large space occupation, it cannot work normally in the narrow installation space of some drilling downhole tools, resulting in the failure of normal completion of oil operations, pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/344F04C15/06F04C15/00
CPCF04C2/344F04C15/06F04C15/00F04C2240/10
Inventor 朱杰然张玉张佳佳葛鹏崔海波孙在王义峰
Owner 中石化石油工程技术服务有限公司
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