A Small Diameter Metal Piston Type Pulse Generator

A pulse generating device and piston-type technology, which is applied in construction and other fields, can solve problems such as complicated maintenance and long maintenance period of the device

Active Publication Date: 2021-09-10
DONGYING ZHICHENG ELECTROMECHANICAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the maintenance period of this pulse generating device is long, the maintenance is complicated, and it cannot be used in deep wells, high-temperature wells, and complex well conditions.

Method used

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  • A Small Diameter Metal Piston Type Pulse Generator

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Embodiment Construction

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] A small diameter metal piston pulse generator, including high pressure plug 1, sealing plug 5, electromagnetic actuator, plug seat 6, electromagnetic actuator outer cylinder 7, balance piston 13, sealing device 14, balance piston outer cylinder 15 , Overflowing sleeve 16, a retractable valve 17, a mud filter 18, and a joint 19, the sealing plug 5 is provided on the electromagnetic actuator outer cylinder 7, and the electromagnetic actuator outer cylinder 7 is fixed to high pressure plug 1, The high pressure plug 1 includes a lock nut 2, a connector fixing sleeve 3, a connector, and the connector fixing sleeve 3 is fixed by a lock nut 2, and the connector fixing sleeve 3 other end fixing a connector A4 The connector A4 is sequentially connected to the connector B20, the plug seat 6, the plug seat 6 and the electromagnetic actuator; the electromagnetic actuator includes...

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Abstract

The invention provides a small-diameter metal piston-type pulse generating device, wherein one end of the connector fixing sleeve is fixed by a lock nut, and the other end of the connector fixing sleeve is fixed with a connector A, and the connector A is sequentially connected with Connector B, plug seat, the plug seat is connected with the electromagnetic actuator; the static armature is fixed on the shell of the electromagnetic actuator and the wire winding. Spring assembly; there is a sealing device between the ceramic telescopic rod and the balance piston, the overflow sleeve is installed on the telescopic valve, the telescopic valve is fixed in the outer cylinder of the electromagnetic actuator, and a mud filter is installed on the outer cylinder of the electromagnetic actuator. The outer cylinder of the electromagnetic actuator is connected; the advantages are: the invention has strong downhole applicability and meets the needs of various types of drilling; the structure size is small and meets the needs of slim hole drilling; high temperature resistance, high pressure resistance, and erosion resistance are enhanced; the application range is wide, Strong applicability and low downhole risk.

Description

Technical field [0001] The present invention relates to the field of pulse generators, and more particularly to a small diameter metal piston pulse generating device. Background technique [0002] The pulse generating device is an indispensable power unit in the wireless and drilling measurement system. When working properly under the well, the flow rate that can periodically control the mud causes local pressure and discharge to generate pressure fluctuations, and then fluctuate is transmitted to the ground by decoding data to ensure the correct drilling method. The conventional pulse generating device's downhole pressure balancing unit adopts a special non-metallic soft expandable material, which is not high temperature, high pressure, and is easily broken by hard objects, causing the pulse to operate normally, short use of the underground. High risk. According to statistics, the normal working time of this pulser is about 500 hours, and the operating temperature does not excee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/20
CPCE21B47/20
Inventor 赵席周小昆王红卫
Owner DONGYING ZHICHENG ELECTROMECHANICAL TECH DEV
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