Dual wiper plug system

摘要

A dual wiper plug system having a first wiper including a first body having a first bore therethrough, and at least one wiper fin disposed around the body, a second wiper disposed axially above the first wiper, the second wiper including a second body having a second bore therethrough and a first shoulder formed on the inner surface of the second body, and at least one wiper fin disposed around the body, and a first collet ring coupled to the first wiper and including at least one collet finger extending axially upward, and a collet head disposed on an upper end of the collet finger and configured to engage the first shoulder of the second body.

主权项

1. A dual wiper plug system comprising:
a first wiper comprising:
a first body having a first bore therethrough; andat least one wiper fin disposed around the body; a second wiper disposed axially above the first wiper, the second wiper comprising:
a second body having a second bore therethrough and a first shoulder formed on the inner surface of the second body; andat least one wiper fin disposed around the body; a first sleeve disposed in the first bore of the first wiper and the second bore of the second wiper; and a first collet ring coupled to the first wiper and comprising:
at least one collet finger extending axially upward; anda collet head disposed on an upper end of the collet finger and configured to engage the first shoulder of the second body; and wherein the first sleeve comprises a groove formed on an outer surface thereof configured to radially align with the collet head of the first collet ring when the first sleeve shifts to a first position.