Patent ID: 9708875
Date: 2017-07-18
CPC Classifications: E21B

Claim:
1. A device comprising: a plug provided with a cap portion having a slotted interface, wherein the slotted interface of the cap portion comprises vertical and horizontal grooves; a plug body attached below the cap portion, the plug body comprises an upper and lower plug body, wherein a locking module is disposed between the upper and lower plug body; a first sealing member disposed on an outer circumference of the upper plug body, wherein the first sealing member is a de-energized bulk sealing member which is energized by a downward load to provide a sealing function which seals a space directly between an inner surface of a wellhead and the plug body; an annular mandrel, an upper portion of the mandrel is housed within the conical cap and plug body, wherein a lower portion of the mandrel includes a stem portion extending out of the lower plug body; and a valve assembly disposed within a hollow profile of the mandrel.