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Microwave-assisted rock breaking drill bit, electricity conductive drill rod and microwave-assisted rock breaking device

A microwave-assisted, drill bit technology, applied in the direction of drill bits, drill pipes, drill pipes, etc., to reduce the difficulty of rock breaking, reduce rock strength, and improve the effect of ROP

Inactive Publication Date: 2015-04-29
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been no literature reports on the field application of microwave-assisted rock breaking technology products in the field of drilling engineering at home and abroad.

Method used

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  • Microwave-assisted rock breaking drill bit, electricity conductive drill rod and microwave-assisted rock breaking device
  • Microwave-assisted rock breaking drill bit, electricity conductive drill rod and microwave-assisted rock breaking device
  • Microwave-assisted rock breaking drill bit, electricity conductive drill rod and microwave-assisted rock breaking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, in conjunction with attached figure 1 , 2 , a microwave-assisted rock-breaking drill bit, comprising:

[0028] The drill insert 18 and the blades 19, cutting teeth 20, and joints distributed on the drill insert 18. Each blade 19 is embedded with an auxiliary rock-breaking microwave generator 9, the drill bit insert 19 is embedded with a cable 7, and an independent conductive coil 8 is embedded at the joint, and the cable 7 is connected between the conductive coil 8 and the auxiliary rock-breaking microwave generator 9 between.

[0029] The microwave-assisted rock-breaking drill bit based on the foregoing embodiments further includes:

[0030] The drill bit is a PDC drill bit.

[0031] See attached image 3 , Bottomhole auxiliary rock-breaking microwave generation, 9 consists of a magnetron 10, a rectangular waveguide 11, a coaxial waveguide 12, a tuning mirror 13 and an electrode needle 14, wherein the coaxial waveguide 12 is composed of an external c...

Embodiment 2

[0034] Embodiment 2, in conjunction with attached Figure 4 , a conductive drill pipe 6, comprising a drill pipe body and joints connected to both ends of the drill pipe body, wherein a cable 7 is embedded in the drill pipe body, and independent conductive coils 8 are respectively embedded in the two joints of the drill pipe.

Embodiment 3

[0035] Embodiment 3, a microwave-assisted rock-breaking device utilizing the above-mentioned microwave-assisted rock-breaking drill bit includes a drilling rig, a power supply system and a control system, wherein the control system includes a microwave generation controller, and the microwave-assisted rock-breaking drill bit is connected to the drilling machine, including through The mechanical connection established between the microwave-assisted rock-breaking drill bit and the drilling machine, and the line connection established through the cable of the microwave-assisted rock-breaking drill bit, the independent conductive coil, the power supply system and the microwave generation controller.

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Abstract

The invention discloses a microwave-assisted rock breaking drill bit, an electricity conductive drill rod and a microwave-assisted rock breaking device. The microwave-assisted rock breaking drill bit comprises a drill bit inserting body, cutter wings, cutting teeth and connectors, wherein the cutter wings, the cutting teeth and the connectors are distributed on the drill bit inserting body, assisted rock breaking microwave generators are embedded in the cutter wings, cables are embedded in the drill bit inserting body, independent electricity conductive coils are embedded at the positions of the connectors, and the cables are connected between the electricity conductive coils and the assisted rock breaking microwave generators; the inserting conductive drill rod comprises a drill rod body and connectors connected to two ends of the drill rod body, wherein the cables are embedded in the drill rod body, and the independent electricity conductive coils are embedded at the positions of the connectors of the drill rod; the microwave-assisted rock breaking device comprises a drill machine, a power supply system and a control system, wherein the control system comprises a microwave generation controller. For the microwave-assisted rock breaking drill bit, the electricity conductive drill rod and the microwave-assisted rock breaking device, heat generated by microwave radiation is applied to reduce the strength of rock or directly break the rock, so that not only the mechanical drilling rate can be increased, but also vibration in a drilling process can be effectively reduced, the service life of the drill bit is prolonged, and the costs of drilling a well and breaking the rock are reduced.

Description

technical field [0001] The invention relates to a microwave-assisted rock-breaking drill bit, a conductive drill pipe and a microwave-assisted rock-breaking device in the technical field of rock-breaking devices, and is mainly used in oil and gas drilling, geological exploration, mine drilling, mining and other industries. Background technique [0002] At present, under the condition of rotary drilling, the high-efficiency auxiliary rock-breaking technology mainly breaks rock mechanically by increasing the bottom water power and increasing the energy of the drill bit, and its service life and rock-breaking effect need new breakthroughs. So far, there have been no literature reports on the field application of microwave-assisted rock breaking technology products in the field of drilling engineering at home and abroad. Contents of the invention [0003] The purpose of the present invention is to increase the rate of penetration and reduce the cost of drilling or rock breakin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/00E21B17/00E21B7/00
CPCE21B10/00E21B7/00E21B10/42E21B10/54E21B17/003
Inventor 王宗刚韩来聚李作会孙铭新周延军王智锋冯光通牛洪波魏振孙连坡
Owner CHINA PETROCHEMICAL CORP
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