US 12,000,230 B2
Annular blowout preventer
Nicolas Arteaga, Jersey Village, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 18/042,823
Filed by SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
PCT Filed Aug. 24, 2021, PCT No. PCT/US2021/047238
§ 371(c)(1), (2) Date Feb. 24, 2023,
PCT Pub. No. WO2022/046691, PCT Pub. Date Mar. 3, 2022.
Claims priority of provisional application 63/070,058, filed on Aug. 25, 2020.
Prior Publication US 2023/0265732 A1, Aug. 24, 2023
Int. Cl. E21B 33/06 (2006.01)
CPC E21B 33/06 (2013.01) 17 Claims
OG exemplary drawing
 
1. A packer assembly for an annular blowout preventer (BOP), the packer assembly comprising:
an elastomeric sealing packer including an inner surface defining a bore through the elastomeric sealing packer, wherein the bore extends along an axial axis; and
a plurality of inserts that support the elastomeric sealing packer and are moveable to compress the elastomeric sealing packer to seal the bore, wherein each insert of the plurality of inserts comprises:
an intermediate member that comprises a first end and a second end;
an upper member rotatably coupled to the first end, wherein the upper member is rotatable relative to the intermediate member about a first axis that is parallel to the axial axis from a first radially retracted position to a first radially extended position; and
a lower member rotatably coupled to the second end, wherein the lower member is rotatable relative to the intermediate member about a second axis that is parallel to the axial axis from a second radially retracted position to a second radially extended position, and wherein the first axis is parallel to the second axis.