| 摘要 |
A plug for isolating a wellbore is provided. The plug can include a mandrel having a bore formed therethrough, at least one sealing element disposed about the mandrel, at least one slip disposed about the mandrel, at least one conical member disposed about the mandrel, and an insert disposed at least partially within the bore of the mandrel. The insert can include a body, at least one circumferential groove disposed on an outer surface of the body, wherein the at least one circumferential groove is adapted to retain an elastomeric seal, and at least one interface disposed on an end of the body for securing the insert into the mandrel. The body can also have a bore formed only partially therethrough or a bore formed completely therethrough with the body being adapted to receive an impediment that restricts fluid flow in at least one direction through the body. At least one of the body and the impediment can include one or more decomposable materials. |
