Electric drilling tool cable plug sealing structure

Abstract

The invention provides an electric drill cable plug sealing structure. The structure is provided with a female adapter and a male adapter. The female adapter is fixedly provided with a female plug. The male adapter is provided with a male plug. The front end surface of the female plug is provided with one embedded groove in recessed arrangement, and the internal side wall of the embedded groove is provided with an internal conductive sheet thereon, and groove opening of the embedded groove is embedded with a sealing piece, and the female plug is also provided with a lower side cable therein, and one end of the lower side cable is in electrical connection with the internal conductive sheet. A rear end surface of the male plug is protrudingly provided with a connecting peg, and the external side surface of the connecting peg is embedded with an external conductive sheet, and the male plug is also provided with an upper side cable, and one end of the upper side cable is in electrical connection with the external conductive sheet. when one end of the male plug is correspondingly connected to one end of the female plug, the front end of the connection peg is inserted inside the embedded groove in corresponding sealing, and the internal conductive sheet and the external conductive sheet are in contact, and the rear end of the connection peg is bonded tightly with the sealing piece, and the groove bottom of the embedded groove and the front end of the connection plug constitute an enclosed cavity therebetween, and the enclosed cavity can be filled with insulation resin.

Description

technical field [0001] The invention belongs to the field of oil exploitation, and in particular relates to a sealing structure for a cable plug of an electric drilling tool. Background technique [0002] The downhole electric drilling tool is a drilling equipment that uses a submersible motor to drive the drill bit to rotate at the bottom of the well. It can be used for vertical wells, directional wells and horizontal wells. Electric drilling tools are driven by electricity, and the main advantages are: compared with ordinary drilling, the speed, torque and other parameters of the drilling tool have nothing to do with the injection volume, viscosity and physical and chemical properties of the drilling fluid, but are only related to the performance of the motor; Advanced screw drilling tools and turbo drills can perform reverse circulation; the electric drive can also be used as a power source for downhole measuring instruments, which can greatly lengthen the working time of...

AI Technical Summary

Problems solved by technology

During the drilling operation, the plug is always powered on. Since the drill pipe is still full of drilling fluid, if the drilling fluid enters the plug at this time, it will cause a short circuit, causing damage to the electric drilling tool, and may also cause casualties.

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