US 11,814,903 B2
Staged underreamer cutter block
Philip G. Trunk, Houston, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on May 10, 2021, as Appl. No. 17/316,220.
Application 17/316,220 is a division of application No. 16/072,524, granted, now 11,002,080, previously published as PCT/US2017/014005, filed on Jan. 19, 2017.
Claims priority of provisional application 62/288,214, filed on Jan. 28, 2016.
Prior Publication US 2021/0262293 A1, Aug. 26, 2021
Int. Cl. E21B 10/32 (2006.01); E21B 10/60 (2006.01); E21B 17/10 (2006.01)
CPC E21B 10/322 (2013.01) [E21B 10/60 (2013.01); E21B 17/1092 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A downhole assembly, comprising:
a bit; and
a cutting tool uphole of the bit, the cutting tool having one or more expandable cutter arms, each cutter arm comprising:
a longitudinal axis;
a first reaming portion;
a first stabilizer portion adjacent the first reaming portion;
a second reaming portion;
a second stabilizer portion between the first reaming portion and the second reaming portion; and
a gauge portion adjacent the second stabilizer portion, the gauge portion including no stabilizer portion or a stabilizer portion having a length less than at least one of the first stabilizer portion or the second stabilizer portion, wherein the gauge portion is a maximum height of the cutter arm from the longitudinal axis, and extends radially farther from the longitudinal axis than the first stabilizer portion and the second stabilizer portion.