Patent ID: 9556701
Date: 2017-01-31
CPC Classifications: E21B

Claim:
1. A method comprising: pumping a cementing plug having a mandrel and a nose from a surface of a wellbore via a flow of fluid through the wellbore, wherein the nose is coupled to the mandrel and selectively movable between a retracted position and an extended position relative to the mandrel, wherein a portion of the nose is positioned within the mandrel when in the retracted position, and wherein the portion of the nose is positioned outside the hollow mandrel when in the extended position; wherein the nose is in the retracted position when the cementing plug is first disposed in the wellbore; landing the cementing plug on a landing collar; extending the nose to the extended position after the cementing plug lands on the landing collar; retaining the nose at least partially inside the mandrel when the nose is in the extended position; and coupling the nose to a latching mechanism of the landing collar.