a torsion impactor

Abstract

The invention provides a torsion impactor. The torsion impactor comprises a transmission shaft, a turbine, a torsion conduction connector and a plurality of pairs of torsion generating devices, wherein the upper end of the transmission shaft is connected with an upper connector through an upper bearing seat, the lower end of the transmission shaft is connected with a lower connector through a lower bearing seat, the lower end of the lower connector is connected with a drill bit, the turbine is mounted on the transmission shaft, the torsion conduction connector is located below the turbine, theupper end and the lower end of the torsion conduction connector are connected with the upper connector and the lower connector respectively, each pair of torsion generating devices are installed inside the torsion conduction connector, each torsion generating device comprises an impact anvil, a connecting shaft and two impact hammers, the cross section of each impact anvil is in a variable-thickness circular ring shape, a first impact face is arranged on the inner surface of each impact anvil, the connecting shaft and the two punch hammers are located in each corresponding impact anvil, the two punch hammers are installed at the two ends of the corresponding connecting shaft correspondingly, and the connecting shafts are perpendicularly connected with the transmission shaft. The torsion impactor has the beneficial effects that torsional impact vibration can be continuously generated in the same direction, the stick-slip phenomenon of the drill bit can be effectively avoided, and the drilling efficiency of the drill bit is improved.

Description

technical field [0001] The invention relates to the technical field of drilling tools, in particular to a torsional impactor. Background technique [0002] With the development of society, human beings' demand for natural resources is increasing day by day. At present, the energy we can use is still mainly fossil fuels such as coal, oil, natural gas, and shale gas. With the increase of mining life, there are less and less surface fossil fuels that are easy to mine, and more and more deep fossil fuels that are difficult to mine, which poses a higher challenge to drilling technology. During the drilling process, drill bit damage, cutter breakage, excessive wear of cutters, etc. often occur due to problems such as drilling pressure, rotational speed, drilling speed, driller's technique, and borehole wall friction, which affect the rock breaking efficiency and even affect the success rate. Holes (into wells). [0003] In addition, when the PDC drill bit (polycrystalline diamon...

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Problems solved by technology

[0004] In view of this, in order to solve the problems of drill bit sticking, stick-slip leading to drill tool failure and low ROP in the drilling process, the embodiment of the present invention provides a torsion impactor to overcome the deficiencies of the prior art and improve Improve drilling efficiency by improving drilling speed, protecting the drill bit and reducing costs

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