US 12,241,331 B1
Tight tolerance packer
Frank Vinicia Acosta Villarreal, Houston, TX (US); Saul Emmanuel Vazquez Niebla, Houston, TX (US); and Ahmad Rizal Maharam, Senai (MY)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
Filed on Aug. 29, 2023, as Appl. No. 18/239,199.
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 33/12 (2006.01); E21B 23/06 (2006.01)
CPC E21B 33/1208 (2013.01) [E21B 23/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A packer assembly comprising:
a packer mandrel;
a packer element movable from an unset to a set position on the packer mandrel in which the packer element seals against a well bore;
a setting sleeve having first and second ends disposed about and movable on the packer mandrel from a first to a second position to move the packer element to the set position, the setting sleeve and the packer mandrel defining an annular space therebetween, the annular space having first and second ends defining a length therebetween, wherein the second end of the setting sleeve is positioned between the packer element and the packer mandrel in the unset position of the packer element, and moves axially relative to the packer element further beneath the packer element when moved to the set position;
an annular lock ring having a plurality of lock ring teeth thereon positioned in the annular space, the mandrel having a plurality of mandrel teeth thereon in engagement with the lock ring teeth, the lock ring having first and second ends defining a length therebetween and the length of the lock ring being less than the length of the annular space.