An Elastic Compound Frequency Division Control System Based on Hydraulic Drive
A control system and flexible technology, applied in directional drilling and other directions, can solve the problems of data distortion, monitoring failure, abnormal function, etc., and achieve the effect of accurate control function, improved reliability, and easy control.
Active Publication Date: 2021-10-12
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
At present, the monitoring devices in rotary steerable tools are basically controlled by electromagnetics. Under the complex conditions of the formation, there is a danger of monitoring failure, which greatly endangers the drilling safety. The electronic components in it are easily damaged and scrapped, resulting in data distortion and abnormal function. Therefore, an elastic compound frequency division control system based on hydraulic drive is needed
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[0017] The present invention will be further described according to the following examples, and the mode of the present invention includes but not limited to the following examples.
[0018] Such as figure 1 As shown, the present invention includes a housing, an elastic composite mechanism, a frequency division control mechanism, and a hydraulic transmission mechanism. A sealing assembly is arranged on the housing, and the outlet end of the hydraulic transmission mechanism is connected to the inlet of the frequency division control mechanism. end connection, the hydraulic transmission mechanism is provided with the elastic composite mechanism for elastic reciprocating movement, the frequency division control mechanism and the hydraulic transmission mechanism are provided with a limit assembly, and the hydraulic transmission mechanism includes a center Shaft 24, reversing pressure-bearing device 2 and pressure storage conversion sleeve, the outlet end of the central shaft 24 is...
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The invention discloses an elastic compound frequency division control system based on hydraulic drive. The invention includes a housing, an elastic compound mechanism, a frequency division control mechanism, and a hydraulic transmission mechanism. A sealing assembly is arranged on the housing, and the hydraulic The outlet end of the transmission mechanism is connected to the inlet end of the frequency division control mechanism, the elastic composite mechanism is provided on the hydraulic transmission mechanism for elastic reciprocating motion, the frequency division control mechanism and the hydraulic transmission mechanism are Both are equipped with limit components, and the hydraulic transmission mechanism includes a central shaft, a reversing pressure bearing device and a pressure storage conversion sleeve. The present invention applies control pressure to the frequency division control mechanism through the reversing pressure bearing device and the reversing control sleeve, and The frequency division combination is used to control the operation of the pushing system in real time, and realize the control of the hydraulic system and working state of the RSS. Realize the control function.
Description
technical field [0001] The invention relates to the field of rotary steerable drilling systems, in particular to an elastic compound frequency division control system based on hydraulic drive. Background technique [0002] Rotary Steerable Systems (RSS for short) is a steerable drilling system that completes the steering function in real time while drilling when the drill string is rotating. The rotary steerable drilling system works because the downhole tool is always rotating. At present, the monitoring devices in rotary steerable tools are basically controlled by electromagnetics. Under the complex conditions of the formation, there is a danger of monitoring failure, which greatly endangers the drilling safety. The electronic components are easily damaged and scrapped, resulting in data distortion and abnormal function. Therefore, an elastic compound frequency division control system based on hydraulic drive is needed. Contents of the invention [0003] The purpose of ...
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IPC IPC(8): E21B7/04
CPCE21B7/04
Inventor 范翔宇谢炜周跃云张千贵强瑜汪丹
Owner SOUTHWEST PETROLEUM UNIV