A High-frequency Vibrator for Efficient Rock Breaking in Resonant Drilling
A vibration exciter and high-efficiency technology, applied in the field of oil drilling, can solve the problems of low ROP, increased drilling encounter rate, and high drilling cost, and achieve the effect of high-efficiency rock breaking.
Active Publication Date: 2022-04-22
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
[0002] As the country's demand for oil and gas resources continues to increase, oil and gas exploration is also increasing year by year. However, the drilling rate of complex formations and difficult-to-drill formations is also gradually increasing. Traditional drilling methods have low ROP and high drilling costs. Existing technologies It is increasingly unable to meet the needs of today's drilling operations, and it is urgent to develop new and efficient rock-breaking technology to solve the problem of low rock-breaking efficiency in current oil drilling
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[0014] Below in conjunction with accompanying drawing, the present invention will be further described:
[0015] combine figure 1 As shown, this high-frequency exciter for resonant drilling and efficient rock breaking includes a drilling tool main body 1, a guide tube 21, a giant magnetostrictive driver, and a drill joint 12. The inside of the drilling tool main body 1 has an annular boss, an annular Below the boss is the driving cavity, in which the giant magnetostrictive driver is installed, the upper end of the guide tube 21 is connected to the annular boss, the lower end of the guide tube 21 is connected to the inner wall of the drill joint 12, and the drill joint 12 is connected to the main body of the drilling tool 1 The port is connected, and the giant magnetostrictive driver is arranged in the annular cavity between the drill body 1 and the flow guide tube 21 . The giant magnetostrictive driver includes a giant magnetostrictive material rod 5, an electromagnetic coil ...
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The present invention relates to a high-frequency exciter for high-efficiency rock breaking in resonance drilling. The high-frequency exciter for high-efficiency rock breaking in resonance drilling includes a drilling tool main body, a draft tube, and a giant magnetostrictive driver. , drill joint, the inside of the main body of the drilling tool has an annular boss, the upper end of the guide tube is connected to the annular boss, the lower end of the guide tube is connected to the inner wall of the drill joint, the drill joint is connected to the lower port of the drill main body, and the giant magnetostrictive drive is set on In the annular cavity between the main body of the drilling tool and the guide tube; the giant magnetostrictive driver includes giant magnetostrictive material rods, electromagnetic coils, disc springs, output rods, magnetic conduction cylinders, occupying cylinders, linear bearings, magnetic conduction Inner sleeve, magnetically conductive outer sleeve, magnetically conductive lower end cap, magnetically conductive upper end cap. The invention adopts the principle of magnetostriction, and acts on the drill bit joint with the high-frequency impact force generated by the expansion and contraction, so that the drill bit impacts the rock at high frequency, causes the rock to resonate, and realizes high-efficiency rock breaking through resonance.
Description
technical field [0001] The invention relates to the technical field of petroleum drilling, in particular to a high-frequency vibrator used for high-efficiency rock breaking in resonance drilling. Background technique [0002] As the country's demand for oil and gas resources continues to increase, oil and gas exploration is also increasing year by year. However, the drilling rate of complex formations and difficult-to-drill formations is also gradually increasing. Traditional drilling methods have low ROP and high drilling costs. Existing technologies It is increasingly unable to meet the needs of today's drilling operations, and it is urgent to develop new high-efficiency rock-breaking technology to solve the problem of low rock-breaking efficiency in current oil drilling. Therefore, the resonance rock-breaking drilling technology is proposed as a new high-efficiency rock-breaking technology. [0003] When performing resonance excitation percussion drilling, when the shock...
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IPC IPC(8): E21B28/00E21B7/24
CPCE21B28/00E21B7/24
Inventor 徐金超李思琪赵欢李玮孙永河张军
Owner NORTHEAST GASOLINEEUM UNIV