US 12,338,692 B2
Swivel sub with biasing member
Nick Strohla, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on May 31, 2023, as Appl. No. 18/204,307.
Prior Publication US 2024/0401420 A1, Dec. 5, 2024
Int. Cl. E21B 17/07 (2006.01); E21B 17/02 (2006.01); E21B 17/05 (2006.01); E21B 17/06 (2006.01)
CPC E21B 17/073 (2013.01) [E21B 17/021 (2013.01); E21B 17/023 (2013.01); E21B 17/05 (2013.01); E21B 17/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a connector sub rigidly securable to a conveyance for running the connector sub along a wellbore;
a spool mandrel coupled to a downhole end of the connector sub, wherein the spool mandrel is rotatable with respect to the connector sub;
a control line extending between the connector sub and the spool mandrel, and wherein the control line is displaceable to permit rotation of the spool mandrel with respect to the connector sub; and
at least one biasing member for biasing the spool mandrel to a neutral position with respect to the connector sub, wherein a portion of the control line is coiled around the spool mandrel, and wherein the at least one biasing member comprises a coiled portion of the control line, wherein at least a portion of the control line includes an elastic material configured to elastically strain in response to tension and/or compression on the control line, wherein the elastic strain generates a biasing force to return the coiled portion of the control line to a neutral state, which drives rotation of the spool mandrel to the neutral position of the spool mandrel with respect to the connector sub.