Patent ID: 9626091
Date: 2017-04-18
CPC Classifications: E21B,G01B,G06F,H04L

Claim:
1. An apparatus for actuating a centralizer to centralize a pipe downhole, the pipe having a longitudinal axis and a cylindrical exterior wall, the centralizer including a plurality of circumferentially-spaced centralizing members mounted to the cylindrical exterior wall of the pipe, the apparatus comprising: a lock coupled to the centralizing members, wherein the lock transitions from a locked position locking each of the centralizing members in a radially retracted position to an unlocked position allowing each of the centralizing members to transition from the radially retracted position to a radially expanded position; and an actuator coupled to the lock, wherein the actuator selectively transitions the lock from the locked position to the unlocked position in response to an increase in pressure within the pipe.