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An Ultrasonic Vibration Wireline Coring Tool

A coring tool and ultrasonic technology, applied in vibratory drilling, extracting undisturbed core devices, earthwork drilling and mining, etc., can solve the problems of high cost and low drilling efficiency in high drillability formations, and achieve reduced strength and improved Drilling efficiency, the effect of increasing the drilling speed

Inactive Publication Date: 2018-01-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an ultrasonic vibrating wireline core drilling tool, which is used to solve the problems of low drilling efficiency and high cost in formations with high hardness and high drillability

Method used

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  • An Ultrasonic Vibration Wireline Coring Tool
  • An Ultrasonic Vibration Wireline Coring Tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] see figure 1 and figure 2 As shown, the spear head 1 of the present invention is connected with the cartridge recovery pipe 3, and the cartridge recovery pipe 3 forms a movable connection with the cartridge seat 7 through the first elastic pin 2. When the cartridge recovery pipe 3 goes up, the bullet caliper 5 Gravity falls, and the bullet caliper 5 is connected with the bullet holder 7 through the second elastic pin 6,

[0018] When the bullet card seat 7 goes down, it drives the bullet caliper 5 to go down together. When the bullet caliper 5 is closed by the thrust of the bullet card recovery tube 3, the two pieces of the bullet caliper 5 remain open, and the two pieces of the bullet caliper 5 are stuck on the first spring 4 to ensure The inner tube 23 will not go up due to the thrust generated during the drilling process; the piezoelectric ceramic vibrator 31 reaches the inner diameter reinforcement of the outer tube 12, and the battery 27 and the piezoelectric cer...

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Abstract

The invention discloses an ultrasonic vibration cord coring drill tool. The ultrasonic vibration cord coring drill tool is characterized in that power can be supplied to a piezoelectric ceramic vibrator by a battery of the ultrasonic vibration cord coring drill tool, high-frequency voltages with different frequencies can be provided, and accordingly the piezoelectric ceramic vibrator can be excited to ultrasonically vibrate; generated ultrasonic vibration is transmitted to rock via an outer tube and a drill bit, and resonance breaking can be carried out on the rock; single-action characteristics of rock core tubes are kept among the battery, the piezoelectric ceramic vibrator and a solid shaft by the aid of bearings. The ultrasonic vibration cord coring drill tool has the advantages that the ultrasonic vibration cord coring drill tool is convenient to replace, the application range of ultrasonic drilling can be greatly expanded, the drilling periods can be shortened, and the cord coring drilling speeds can be increased.

Description

technical field [0001] The invention relates to an ultrasonic vibration rope core drilling tool, which is suitable for deep-hole geological core drilling, and specifically relates to the use of ultrasonic vibration to perform fatigue damage to hard rocks and rapidly drill. Background technique [0002] With the rapid development of the economy, the consumption of energy is also increasing day by day, and shallow oil, coal, natural gas and other energy sources are exploited in large quantities. Judging from their remaining reserves, the proven shallow energy can no longer continue to support modern industry for a long time. Therefore, it is particularly important to use geological core drilling to explore the energy storage in deeper formations, and the rope coring method is the first choice for geological core drilling. Wireline core drilling has become the main drilling method for geological drilling in my country. However, due to the relatively thick wall of the wireline ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B1/00E21B7/24E21B25/02
CPCE21B1/00E21B7/24E21B25/02
Inventor 赵大军周宇张书磊翟国兵王美艳刘华南孙梓航尹崧宇袁鹏戚波孙雪娇
Owner JILIN UNIV
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