High temperature deep well screw drilling tool

A technology for screw drilling tools and deep wells, which is applied in the direction of drilling driving devices, drilling equipment, earthwork drilling and production in boreholes, etc. It can solve the problem that the overall structure application does not have much change, and the high temperature resistance performance of the screw drill cannot be fully exerted. Damage and other issues

Inactive Publication Date: 2009-05-27
江苏长城石油装备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the transmission part of the screw drilling tool, 8 sets of string bearings are used, and the TC bearing is relatively short. Although there are some high-temperature screw drill designs, there is not much change in the overall structural application. The overall high-temperature resistance of the screw drill

Method used

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  • High temperature deep well screw drilling tool
  • High temperature deep well screw drilling tool
  • High temperature deep well screw drilling tool

Examples

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Embodiment Construction

[0029] The utility model relates to a tool used in oil drilling and workover operations, and mainly relates to a high-temperature deep well screw drilling tool. The universal joint part adopts the intermediate shunt cooling method to reduce the temperature of the mud passing through the screw drilling tool. In the motor part of the screw drilling tool, the stator part is vulcanized with high temperature resistant, alkali and acid resistant rubber, and the rotor part is made of tungsten alloy electroplating process, which has excellent Deep plating ability and Jun plating ability. In the transmission part of the screw drilling tool, 10 sets of string bearings are used, and the TC bearing is lengthened by 50mm. The upper end of the radial bearing and the lower end of the lower radial bearing, so that the screw drilling tool can better withstand the vibration transmitted from the downhole drill bit to the screw drilling tool in deep well work. The screw drilling tool bypass valv...

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Abstract

The invention discloses a tool applicable to petroleum drilling and well repairing operation and mainly relates to a screw drilling tool for a high-temperature deep well. The gimbal part adopts a middle shunting cooling method so as to reduce the temperature of slurry passing through the screw drilling tool; the motor part of the screw drilling tool adopts high-temperature, alkali and acid resistant rubber for vulcanization; the rotor part adopts a tungsten alloy electroplating process; the transmission part of the screw drilling tool adopts 10 sets of serial shafts to lengthen a TC bearing; the transmission shaft part adopts a sealing device, is arranged outside an isolation sleeve or a transmission shaft and inside a transmission shaft shell or a lower nipple and is positioned on the upper end of an upper radial bearing and the lower end of a lower radial bearing respectively; therefore, the screw drilling tool can well bear and buffer vibration transmitted to the screw drilling tool from an underground bit in the operation of the deep well.

Description

Technical field: [0001] The invention relates to an ideal tool for deep well drilling and well repairing operations in oil drilling and well repairing operations. It mainly relates to a high-temperature deep well screw drilling tool. Background technique: [0002] The ordinary screw drilling tools used in oil drilling and workover operations in oil fields now have a temperature resistance within 120°, and the universal joints of the screw drilling tools used are fully sealed. The stator part is lined with rubber, and the rotor part is chrome-plated. In the transmission part of the screw drilling tool, 8 sets of string bearings are used, and the TC bearing is relatively short. Although there are some high-temperature screw drill designs, there is not much change in the overall structural application. The overall high-temperature resistance of the screw drill is not as good as Unable to make full use of it, faced with a well depth of more than 3500 and a temperature of more ...

Claims

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Application Information

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IPC IPC(8): E21B4/02
Inventor 郭小芳郭健陈党明郭大进徐维标郭乃林
Owner 江苏长城石油装备制造有限公司
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