US 10,890,037 B2
Slips positioning apparatus for a well operation
Jason Peter Clarke, Calgary (CA); and Daniel John Clarke, Calgary (CA)
Assigned to PROSTAR ENERGY TECHNOLOGIES (USA) LLC
Filed by PROSTAR ENERGY TECHNOLOGIES (USA) LLC, Leduc (CA)
Filed on Apr. 14, 2019, as Appl. No. 16/383,636.
Application 16/383,636 is a continuation of application No. 15/452,600, filed on Mar. 7, 2017, granted, now 10,323,472.
Claims priority of provisional application 62/406,814, filed on Oct. 11, 2016.
Prior Publication US 2019/0234156 A1, Aug. 1, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 19/10 (2006.01); E21B 33/06 (2006.01)
CPC E21B 19/10 (2013.01) [E21B 33/06 (2013.01)] 12 Claims
OG exemplary drawing
 
7. A method for positioning slips relative to a well center of a wellbore, the method comprising:
operating a positioning apparatus for the slips including:
a slips-mounting stricture for accepting connection of the slips;
an installation structure for mounting the positioning apparatus rigidly relative to the well center, the installation structure having an upper surface defining a first plane;
a first linear guide positioned between the slips-mounting structure and the installation structure, the first linear guide configured for movement. of the slips-mounting structure relative to the installation structure along a first direction in a plane substantially parallel with the first plane;
a second linear guide positioned between the slips-mounting structure and the installation structure, the first linear guide configured for movement of the slips-mounting structure relative to the installation structure along a second direction in a plane substantially parallel with the first plane;
a first linear actuator for moving the slips-mounting structure along the first linear guide; and,
a second linear actuator for moving the slips-mounting structure along the second guide; and
actuating the first linear actuator to position the slips along the first direction.