Title:
POSE MONITORING APPARATUS AND METHOD FOR GEOSTEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/211842
Kind Code:
A1
Abstract:
A pose monitoring apparatus for a geosteering system, comprising: a second pose measurement module (55), provided on a quasi-static platform and measuring a gravity tool face angle of the quasi-static platform, the quasi-static platform being in a non-rotating bias unit in a static bias rotating geosteering system or a directional motor stator end in a directional motor geosteering system, and the second pose measurement module (55) comprising at least one second acceleration measurement sub-module which comprises at least two acceleration sensors (151) that can measure a radial acceleration component of the quasi-static platform; a rotary measurement module (210), provided on the quasi-static platform and/or a drive shaft, and configured to measure relative rotation data of the quasi-static platform and the drive shaft; and a calculating device (214), configured to calculate, according to the obtained gravity tool face angle and the relative rotation data, a gravity tool face angle of a logging-while-drilling instrument that rotates synchronously with the drive shaft. Also disclosed is a monitoring method using the apparatus. The apparatus and the method make the pose monitoring result of the logging-while-drilling instrument more accurate.
Inventors:
XU ZICHEN (CN)
Application Number:
PCT/CN2020/085365
Publication Date:
October 22, 2020
Filing Date:
April 17, 2020
Export Citation:
Assignee:
WAN XIAOYUE (CN)
International Classes:
E21B7/04; E21B47/00
Foreign References:
| CN108240213A | 2018-07-03 | |||
| CN104453713A | 2015-03-25 | |||
| CN202081888U | 2011-12-21 | |||
| US20170242153A1 | 2017-08-24 | |||
| US20160123137A1 | 2016-05-05 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF:
Previous Patent: MOLECULAR MARKER DETECTION AND REGULATING METHODS IN DE-SERVITIZATION STATE OF CELLS
Next Patent: A NEW TYPE OF ENZYME COMPOSITION
Next Patent: A NEW TYPE OF ENZYME COMPOSITION