US 12,188,332 B1
Downhole scraper for radial and axial motion
Håkon Rasmus Berdines Kaltveit, Tananger (NO); and Alan Pace, Aberdeen (NO)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Aug. 31, 2023, as Appl. No. 18/240,470.
Int. Cl. E21B 37/02 (2006.01)
CPC E21B 37/02 (2013.01) 22 Claims
OG exemplary drawing
 
1. A wellbore cleaning tool for cleaning an inner surface of a downhole tubular, comprising:
a housing;
a tool mandrel comprising a generally cylindrical shape, an outer surface, an inner fluid passage, one or more fluid ports, and a mandrel clutch;
a wedge disposed between the tool mandrel and the housing;
a scraper actuator located on the tool mandrel and configured to generate an activation force, wherein the scraper actuator is fluidically coupled to the one or more fluid ports;
a blade assembly located on the tool mandrel proximate the mandrel clutch and comprising one or more scraper blades located in corresponding windows in the housing; and
a control device located on the tool mandrel between the scraper actuator and the blade assembly, and comprising at least one lug located within a control pattern,
wherein an outer surface of each of the one or more scraper blades is configured to contact the inner surface of the downhole tubular.