US 12,221,853 B2
Downhole plug
Chris Molzahn, Edmonton (CA)
Filed by Revolution Strategic Consulting Inc., Edmonton (CA)
Filed on Jun. 1, 2023, as Appl. No. 18/204,902.
Claims priority of provisional application 63/347,991, filed on Jun. 1, 2022.
Prior Publication US 2023/0392469 A1, Dec. 7, 2023
Int. Cl. E21B 33/128 (2006.01); E21B 33/12 (2006.01); E21B 33/129 (2006.01); E21B 33/134 (2006.01)
CPC E21B 33/128 (2013.01) [E21B 33/1208 (2013.01); E21B 33/129 (2013.01); E21B 33/134 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A downhole plug, comprising:
a mandrel body comprising;
a first mandrel segment having a first set of threads;
a second mandrel segment having a second set of threads that are sized to threadably engage the first set of threads;
an outer mandrel surface defined by the first mandrel segment and the second mandrel segment when the first set of threads and the second set of threads are threadably engaged in a threaded connection;
an upper shoulder carried by the first mandrel segment; and
a lower shoulder carried by the second mandrel segment at a fixed distance relative to the upper shoulder; and
a load ring carried by the mandrel body;
a seal assembly carried by the mandrel body between the upper shoulder and the lower shoulder, the load ring being moveable relative to the mandrel body, the seal assembly being activatable from a deactivated state to a sealed state at a sealing location on the outer mandrel surface by applying a force to move the load ring along the mandrel body toward the lower shoulder, wherein the threaded connection is positioned downstream of the sealing location such that, with upstream pressure applied, a top end of the threaded connection is at or below a lower edge of the sealing location in an axial direction.