公开(公告)号：US20180051533A1

公开(公告)日：2018-02-22

申请号：US15680986

申请日：2017-08-18

Applicant: ConocoPhillips Company

Inventor： Zachary L. ZBRANEK ,  Charles COLPITT ,  James G. NANNEY ,  Matthew L. WHITE

IPC: E21B33/134

CPC classification number: E21B33/134 ,  E21B17/14 ,  E21B33/16

Abstract: By incorporating a dissolvable or degradable material into the wiper dart and/or float equipment, a fluid can be pumped during the cement phase (or spotted by other means) to begin degradation of the dissolvable material. Once the material is dissolved, a flow path is exposed, allowing communication to the backside or formation of the wellbore through the plug set and shoe track.