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Cable-piercing hydraulic oscillator

A hydraulic oscillator and cable technology, which is applied in vibration drilling, drilling equipment, earthwork drilling and production, etc., can solve problems such as difficulty, high friction, and high cost, and achieve improved sealing performance, flexible relative movement, and prevention of relative rotation Effect

Pending Publication Date: 2019-04-02
JEREH ENERGY SERVICES
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, in the field of oil and gas, the drilling tools used for drilling are relatively uniform. Conventional drilling tools will generate greater friction when drilling, which will increase the difficulty of drilling, resulting in high cost, high difficulty, and low efficiency.
At present, the vibration tools used in the oil and gas industry in China have a relatively complex structure and cannot be used in the gas drilling industry

Method used

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  • Cable-piercing hydraulic oscillator
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Examples

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Embodiment Construction

[0023] Examples such as Figures 1 to 2 As shown in Fig. 1, a cable-through hydraulic oscillator can be used for both oil and gas and coal gas exploitation. It includes an upper joint 1, a piston 2, a compression spring 3, an outer sleeve 4, a lower joint 5, a first sealing assembly 6 and a second sealing assembly 7, the upper joint 1 and the lower joint 5 are connected through the outer sleeve 4, specifically, the The outer jacket 4 is threadedly connected with the upper joint 1 . The outer casing 4 is arranged outside the upper joint 1 and the lower joint 5, the piston 2 is arranged inside the outer casing 4, the upper end of the piston 2 is arranged between the upper joint 1 and the lower joint 5, and the lower end of the piston 2 is arranged at the lower joint. 5, and is connected with the lower joint 5, and the piston 2 is threaded with the lower joint 5. An annular cavity is enclosed between the outer casing 4, the piston 2 and the lower joint 5, and the compression sp...

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Abstract

The invention discloses a cable-piercing hydraulic oscillator. The cable-piercing hydraulic oscillator comprises an upper connector, a piston, a compression spring, an outer jacket, a lower connector,a first sealing assembly and a second sealing assembly, wherein the upper connector and the lower connector are connected through the outer jacket; the outer jacket is arranged on the outer parts ofthe upper connector and the lower connector; the piston is arranged on the inner part of the outer jacket; a ring-shaped cavity is formed between the outer jacket, the piston and the lower connector;the compression spring is arranged in the ring-shaped cavity; the first sealing assembly is arranged between the upper connector and the outer jacket; the second sealing assembly is arranged between the outer jacket and the lower connector; a sealing cavity is formed between the piston and the upper connector; holes are formed in the upper end of the piston; the holes communicate with the sealingcavity; and the piston and the lower connector can move up and down in the cable-piercing hydraulic oscillator under the action of pressure difference. The cable-piercing hydraulic oscillator has thebeneficial effects that the whole hydraulic oscillator has a good sealing performance, and a flexible vibrating and rectangular limiting connection mode makes the reciprocating motion continuous well.

Description

technical field [0001] The invention relates to the technical field of oil and gas drilling and mining, in particular to a cable-piercing hydraulic oscillator. Background technique [0002] In recent years, in the field of oil and gas, the drilling tools used for drilling are relatively uniform. Conventional drilling tools will generate greater friction when drilling, which will increase the difficulty of drilling, resulting in high cost, difficulty, and low efficiency. . At present, the vibratory tools used in the oil and gas industry in China have a relatively complex structure and cannot be used in the gas drilling industry. [0003] For this reason urgently need a kind of the above-mentioned problem that can effectively solve drilling process to occur, and can be used for the equipment of gas drilling industry. Contents of the invention [0004] The object of the present invention overcomes the deficiencies in the prior art, and provides a kind of hydraulic vibrator ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/24E21B12/00
CPCE21B7/24E21B12/00
Inventor 孟凡超刘宝振许得禄于智慧
Owner JEREH ENERGY SERVICES
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