US 12,258,842 B1
Downhole wash tool with a speed limiting brake
Carson Edward Riggins, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Dec. 19, 2023, as Appl. No. 18/545,684.
Int. Cl. E21B 37/06 (2006.01)
CPC E21B 37/06 (2013.01) 20 Claims
OG exemplary drawing
 
1. An apparatus for washing a downhole tubular, the apparatus comprising:
a head coupled to a rotatable shaft, the head including a plurality of jets configured to emit fluid to wash the downhole tubular, wherein one or more jets of the plurality of jets are oriented to cause the head to rotate on the rotatable shaft; and
one or more brakes coupled with the rotatable shaft and configured to control rotation of the head, wherein the one or more brakes include:
one or more pads, and
one or more springs coupled with the rotatable shaft and the pads, each spring configured to maintain a respective pad in contact with a housing of the apparatus.