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Ice layer drilling method of ultrasonic vibration air reverse circulation

A technology of air reverse circulation and ultrasonic waves, which is applied in the direction of ice drilling, vibration drilling, drilling equipment and methods, etc., can solve the problems of low drilling efficiency and sampling efficiency, reduce auxiliary operation time, and protect the ecological environment , the effect of guaranteeing life safety

Inactive Publication Date: 2018-03-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low drilling efficiency and sampling efficiency in the process of ice drilling in cold environments, and to provide an ice drilling method with ultrasonic vibration and air reverse circulation

Method used

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  • Ice layer drilling method of ultrasonic vibration air reverse circulation
  • Ice layer drilling method of ultrasonic vibration air reverse circulation
  • Ice layer drilling method of ultrasonic vibration air reverse circulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In a delineated cold environment area where ice cores are drilled for scientific research, ultrasonic drilling is used during drilling and air reverse circulation is used for continuous sampling.

[0030] Specific steps are as follows:

[0031] According to requirements, continuous coring of the ice layer 1000m underground is required this time;

[0032] Step 1. After determining the drilling implementation plan based on the on-site exploration, complete the drilling positioning and drilling rig preparation work;

[0033] Step 2. Select the cored piezoelectric ceramic according to the drilling plan, and select the piezoelectric ceramic 1 of the appropriate size according to the requirements. The inner diameter of the piezoelectric ceramic 1 is smaller than the radius of the armored cable central channel 5, the amplitude is 30μm, and the vibration frequency is 30KHz, then install the ultrasonic vibration drilling device, assemble piezoelectric ceramic 1, power amplifier 2, signa...

Embodiment 2

[0039] In a delineated cold environment area for drilling into ice layers, ultrasonic drilling is used during drilling and air reverse circulation is used to remove ice debris. The specific steps are as follows:

[0040] According to the requirements, it is necessary to drill into the ice layer 1000m underground this time;

[0041] Step 1. After determining the drilling implementation plan based on the on-site exploration, complete the drilling positioning and drilling rig preparation work;

[0042] Step 2. Select the full-scale piezoelectric ceramic according to the drilling plan. The full-scale piezoelectric ceramic has a water gap 101, and select a suitable size piezoelectric ceramic 1 according to the requirements, with an amplitude of 30μm and a vibration frequency of 30KHz, and then ultrasonic Installation of vibrating drilling device, assembling piezoelectric ceramic 1, power amplifier 2, signal transmitter 3, armored cable 4, cable winch 8, electronic control system 9, ice sa...

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Abstract

The invention discloses an ice layer drilling method of ultrasonic vibration air reverse circulation, and belongs to the technical field of cold environment ice layer drilling. An ice layer drilling device adopted by the ice layer drilling method comprises an air reverse circulation device, an ultrasonic vibration drilling device and a downwards putting, carrying and recycling device, and after awell drilling implement scheme is determined for an area which needs ice layer drilling or ice layer drilling sampling in a cold environment, preparation work is conducted, the high-frequency micro-friction effect of ultrasonic vibration and the ultrasonic cavatition are fully utilized to quickly melt a drilled ice layer; meanwhile, the air reverse circulation device is applied on the ground to make an ice sample which is frozen again delivered to a porthole through an armored cable center channel to be collected and studied, and it can be prevented that liquid water is frozen again at the porthole bottom and then the drilling process is influenced. By means of the ice layer drilling method of the ultrasonic vibration air reverse circulation, the problem of drilling the ice layer in a coldenvironment can be solved. The technical problems that the drilling efficiency is low, the energy utilization rate is low, the equipment cost is high, the operation is complicated and sampling is difficult caused by the low-temperature environment are solved, and the shortcomings of an ice layer drilling technology in the cold environment are effectively overcome.

Description

Technical field [0001] The invention belongs to the technical field of ice drilling in cold environments, and particularly relates to an ice drilling method with ultrasonic vibration air reverse circulation. Background technique [0002] The current drilling methods for ice formations in the cold mountains mainly include hot water drilling methods and mechanical rotary drilling methods. The main problems are high energy consumption and low energy utilization, which limits the sampling depth; The rock sample is disturbed greatly, destroying the original nature of the ice sample. Although the reverse circulation drilling method has been successfully used in the field of conventional geological core drilling, due to the complex surface conditions in cold areas, the lack of roads and infrastructure, blizzards and other harsh conditions, Drilling in areas is extremely difficult, so it is not suitable for ice drilling in cold areas. Although conventional armored cable electric mechanic...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B7/24E21B44/00
CPCE21B7/008E21B7/24E21B44/00
Inventor 赵大军周宇王美艳
Owner JILIN UNIV