High build-up, high drilling speed rotary steerable system

Abstract

The invention relates to a directional drilling technology in the field of oil and gas resources, in particular to a high-build-up-rate high-drilling-speed rotating guide system. The high-build-up-rate high-drilling-speed rotating guide system can adapt to the condition that two guide forms work together, and the requirement that a well is drilled at a time is met on the premise of improving the drilling efficiency and ensuring the quality of a borehole. According to the adopted technical scheme, the high-build-up-rate high-drilling-speed rotating guide system comprises a drill bit, a rotatingguide head, a well bottom stabilizer, an MWD and LWD and an upper stabilizer, the drill bit, the rotating guide head, the well bottom stabilizer, the MWD and LWD and the upper stabilizer are sequentially connected, and the high-build-up-rate high-drilling-speed rotating guide system further comprises a downhole generator short section, wireless transmission systems and a downhole power drilling tool, the two wireless transmission systems are provided and mounted at the two ends of the downhole power drilling tool correspondingly, one wireless transmission system is connected with the MWD andLWD, and the other wireless transmission system is connected with the rotating guide head through the downhole generator short section and the well bottom stabilizer.

Description

technical field [0001] The invention relates to a directional drilling technology in the field of oil and gas resources, in particular to a high deflection and high drilling speed rotary steering system. Background technique [0002] The drilling of directional wells often uses downhole power drilling tools or rotary steering systems to control the wellbore trajectory. Directional drilling is the process of drilling the wellbore in a controllable manner to achieve the desired wellbore trajectory. This term is mainly used to describe the wellbore The process of deviating from vertical in the desired direction. [0003] A well needs to be oriented for a number of reasons, including avoiding collision with another well, penetrating a predetermined geological target, intersecting another well for rescue operations or following a trajectory required for geosteering, and many other possible reasons. [0004] The directional drilling tool assembly in the existing directional well ...

AI Technical Summary

Problems solved by technology

[0008] The existing directional drilling technology cannot realize rotary steering and sliding steering at the same time, and the rotary steering head or the downhole power unit are all driven by a single machine. When the single machine is driven, the wellbore quality and drilling efficiency of the directional drilling operation are not high, and cannot meet certain requirements. Requirements for Trip Drilling and Completion

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