Push-leaning type rotary guiding device

Abstract

The invention relates to a pushing type rotary guiding device which comprises an upper driving shaft and a lower driving shaft, the upper driving shaft and the lower driving shaft are coaxially arranged and fixedly connected, and a circuit control module and a hydraulic pushing module are sequentially arranged on the peripheral wall of the upper driving shaft; a gamma measurement module is arranged on the peripheral wall of the lower driving shaft, and a measurement control circuit and an orientation measurement module electrically connected with the measurement control circuit are arranged in the gamma measurement module; and the electric connection system comprises an electric connection part, a communication module and a cable, the electric connection part is arranged on the connection end part of the upper driving shaft and the lower driving shaft, and the communication module is arranged in the circuit control module and the hydraulic pushing module. The measurement control circuit is connected with the electric connection component through a cable, the electric connection component is connected with the circuit control module through a cable, and the circuit control module is connected with the hydraulic pushing module through the communication module. According to the pushing type rotary guiding device, the distance between a gamma measuring point and a drill bit can be shortened, and the deflecting capacity of the pushing type rotary guiding device is improved.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploration and development, and particularly relates to a push-type rotary guide device. Background technique [0002] The existing push-type rotary guide tool is mainly composed of an upper drive shaft, a circuit control module, a hydraulic push-up module, a lower drive shaft and other components. The upper drive shaft is connected to the drive device, the lower drive shaft is provided with a drill bit, and the circuit control module receives commands to control the magnitude and direction of the resultant force provided by the hydraulic pushing module, so that the rotary steering tool can perform directional drilling as required. [0003] In the prior art, the push-type rotary steerable tools usually have the following defects in specific use: 1) The push-push rotary steerable tools in the prior art usually only have the function of measuring the inclination near the drill bit, and with the ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the push-to-type rotary steerable tool usually has the following defects in specific use: 1) The push-to-type rotary steerable tool in the prior art usually only has the function of measuring the inclination near the drill bit, and with the With the development of oil exploration and development technology, more measurement functions need to be integrated. Due to the complex structure of the push-to-type rotary steerable tool, other measurement functions are often integrated into the rotary steerable instrument in the prior art, thereby increasing the measurement distance.

For geosteering, increasing the measurement distance often occurs after the drill bit has drilled out of the reservoir for a certain distance, and the measurement module can find this situation, so that the drilling trajectory cannot be corrected in time; 2) the deflection of the existing rotary steering tool The capacity mainly depends on the hydraulic pushing module. If you want to improve the tilting ability of the rotary steerable tool, you need to increase the pushing force of the hydraulic pushing module.

This requires increasing the hydraulic pressure or increasing the piston area, which increases the size of the hydraulic system, which is not conducive to the design and application of rotary steerable tools

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