US 12,305,458 B2
Internal slip design with minimum backlash for packers seal enhancement
Shobeir Pirayeh Gar, Carrollton, TX (US); Xiaoguang Allan Zhong, Singapore (SG); Christian Alexander Ramirez, Carrollton, TX (US); and David Joe Steele, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Dec. 2, 2022, as Appl. No. 18/073,679.
Prior Publication US 2024/0183234 A1, Jun. 6, 2024
Int. Cl. E21B 23/01 (2006.01); E21B 33/10 (2006.01)
CPC E21B 23/01 (2013.01) [E21B 33/10 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A sealing/anchoring subassembly, comprising:
a mandrel;
a sealing/anchoring element positioned about the mandrel, the sealing/anchoring element configured to move between a radially retracted state and a radially expanded state; and
a ratch latch body coupled to the sealing/anchoring element, the ratch latch body configured to hold the sealing/anchoring element in the radially expanded state, the ratch latch body including:
a stroke sleeve having a stroke sleeve outer diameter (ODSS) and a stroke sleeve inner diameter (IDSS), the stroke sleeve inner diameter (IDSS) having a plurality of stroke sleeve teeth disposed thereon;
a circumferential slot formed within a thickness (T) of the stroke sleeve between the stroke sleeve outer diameter (ODSS) and the stroke sleeve inner diameter (IDSS), the slot forming an integrated locker ring; and
a base having a base outer diameter (ODB) and a base inner diameter (IDB), the base outer diameter (ODB) having a plurality of base teeth disposed thereon, the stroke sleeve teeth and the base teeth configured to directly ratchet along one another to hold the sealing/anchoring element in the radially expanded state.