Patent ID: 9689252
Date: 2017-06-27
CPC Classifications: E21B

Claim:
1. A method to determine placement of a subsea test tree (“SSTT”) within a blow out preventer (“BOP”), the method comprising: deploying a sensing joint down through a tubular and into landing the sensing joint adjacent the BOP using the hanger; closing at least one BOP ram upon the sensing joint, thereby providing an indication of a position of the at least one BOP ram; transmitting a signal indicating detection of contact between the at least one BOP ram and the sensing joint; retracting the at least one BOP ram from the sensing joint; forcing the heavy weight fluid out of the sensing joint; allowing the sensing joint to move back up through the tubular; and determining a desired placement of an SSTT within the BOP based upon the indication of the position of the at least one BOP ram.