Push-the-bit rotary guiding device and application method thereof
US10253568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2015 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Dec 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2001/526
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A push-the-bit rotary guiding device includes a mandrel having a central passage, a sleeve rotatably sleeved outside the mandrel, a plurality of swing ribs circumferentially arranged in an outer wall of the sleeve with an interval, an actuation mechanism for controlling each swing rib to swing respectively, a plurality of detectors for detecting a distance to a well wall in real-time, and a controller for determining whether the actuation mechanism is required to actuate the swing ribs to swing according to the detected distance. Through a real-time detection of the detectors of the push-the-bit rotary guiding device, a well section having an expanded or reduced diameter is detected in time and guiding of the rotary guiding device herein is avoided. The rotary guiding device has advantages of a simple and compact structure, convenient machining, easy assembling, and a safe and highly-efficient operation, and is easy to be popularized and applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.