Patent ID: 9598931
Date: 2017-03-21
CPC Classifications: E21B

Claim:
1. A multi-acting downhole tool arrangement comprising: a tubular; an actuatable sliding member radially disposed relative to the tubular in a radial sealing relationship, the tubular and the sliding member being arranged relative to one another in a non-slidable first configuration, the sliding member and the tubular cooperating to define a chamber therebetween; and at least a pair of seals delimiting the chamber, a first one of the pair of seals being a degradable seal; wherein, upon actuation of the sliding member the sliding member slides in a first axial direction relative to the tubular to a second configuration and as a result of the sliding of the sliding member to the second configuration the degradable seal is exposed to a condition that degrades the degradable seal, and degradation of the degradable seal opens a passage to the chamber such that fluid enters the chamber and urges the sliding member in a second axial direction relative to the tubular to a third configuration.