The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
Mar. 02, 2018
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Qingbo Liu, Beijing, CN;
Qingyun Di, Beijing, CN;
Tsili Wang, Beijing, CN;
Wenxuan Chen, Beijing, CN;
Jiansheng Du, Beijing, CN;
Yongyou Yang, Beijing, CN;
Xinzhen He, Beijing, CN;
Linfeng Hong, Beijing, CN;
Qijun Xie, Beijing, CN;
Abstract
A hybrid rotary guiding device, includes: rotating shaft, the rotating shaft is used to drive the head of a drill tool to rotate, the rotating shaft includes an upper shaft portion, a lower shaft portion, and a steerable portion, a separation distance exists between the upper shaft portion and the lower shaft portion in the axial direction, the upper shaft portion and the lower shaft portion are steerably connected by the steerable portion; the upper shaft portion is installed with at least three first hydraulic mechanisms, and the lower shaft portion is installed with at least three second hydraulic mechanisms, the second hydraulic mechanism is adapted to drive a pushing member against the wall of the well to guide the head of a drill tool, the first hydraulic mechanism and the second hydraulic mechanism are configured so that the first hydraulic mechanism can drive the second hydraulic mechanism to drive the pushing member. The present invention combines the advantages of directional and push-oriented guidance, the influence of formation properties on the build-up slope is largely eliminated, a higher build rate can be provided, and the demand for energy consumption is greatly reduced.