US 12,473,813 B2
Detecting ringout on an expandable tool
Philip Trunk, Houston, TX (US); Balasubramanian Durairajan, Sugar Land, TX (US); and Stephen Michael Cordes, Cypress, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jan. 16, 2024, as Appl. No. 18/414,046.
Application 18/414,046 is a continuation in part of application No. 18/413,703, filed on Jan. 16, 2024.
Prior Publication US 2025/0230741 A1, Jul. 17, 2025
Int. Cl. E21B 44/00 (2006.01); E21B 7/28 (2006.01)
CPC E21B 44/00 (2013.01) [E21B 7/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented in a drilling system operating a reamer and a bit, the method comprising:
receiving a plurality of surface weight-on-bit (SWOB) measurements from a surface weight-on-bit (WOB) sensor and a plurality of downhole weight-on-bit (DWOB) measurements from a downhole WOB sensor;
identifying a decrease in a WOB ratio between the plurality of SWOB measurements and the plurality of DWOB measurements;
determining that the decrease in the WOB ratio exceeds a WOB ratio threshold; and
identifying that a ringout has occurred at the reamer based at least in part on the decrease in the WOB ratio.