公开(公告)号：US20240035356A1

公开(公告)日：2024-02-01

申请号：US17874061

申请日：2022-07-26

申请人： FORUM US, INC.

发明人： Andrew Webber ,  Jeffery Morrison ,  Jeffry Ehlinger

IPC分类号： E21B33/14 ,  E21B23/06 ,  E21B34/06 ,  E21B23/04

CPC分类号： E21B33/146 ,  E21B23/06 ,  E21B34/063 ,  E21B23/0413

摘要： Embodiments presented provide for an apparatus that provides a dislodgable plug seat that is used to capture a cement wiper plug for wellbore cementing operations.

公开(公告)号：US12055012B1

公开(公告)日：2024-08-06

申请号：US18113142

申请日：2023-02-23

申请人： FORUM US, INC.

发明人： Samer Elkhalil ,  Jeffery Morrison

IPC分类号： E21B34/06 ,  E21B33/12 ,  E21B43/26

CPC分类号： E21B34/063 ,  E21B33/12 ,  E21B43/261 ,  E21B2200/08

摘要： Aspects of the present disclosure relate to a casing string comprising a buoyant mandrel and one or more dissolvable plugs, and methods of conducting wellbore operations using the casing string. The casing string may have an upper mandrel comprising a rupture disk. A slotted mandrel may be coupled to a lower end of the upper mandrel and comprise a plug disposed in a port of the slotted mandrel. A casing shoe may be coupled to a lower end of the slotted mandrel and comprise a check valve assembly. A gas filled chamber may be formed between the rupture disk and the check valve assembly. The plug may be configured to dissolve after a predetermined amount of time when in contact with a wellbore fluid.

公开(公告)号：US12078026B2

公开(公告)日：2024-09-03

申请号：US18080291

申请日：2022-12-13

申请人： FORUM US, INC.

发明人： Jeffery Morrison ,  Andrew Webber

IPC分类号： E21B34/06 ,  E21B33/12 ,  E21B47/117

CPC分类号： E21B34/063 ,  E21B33/12 ,  E21B47/117 ,  E21B2200/08

摘要： Aspects of the present disclosure relate to wellbore plugs, and specifically to pump down wiper plug assemblies used for conducting casing integrity pressure tests and completing wellbores. A plug assembly comprises one or more of a mandrel, a wiper, a dissolvable member, a rupture disk, and a movable sleeve. The dissolvable member and the rupture disk are configured to temporarily close fluid flow through an inner bore of the mandrel. The entire or only a portion of the outer surface of the dissolvable member comprises a protective coating.

公开(公告)号：US12123280B2

公开(公告)日：2024-10-22

申请号：US17874061

申请日：2022-07-26

申请人： FORUM US, INC.

发明人： Andrew Webber ,  Jeffery Morrison ,  Jeffry Ehlinger

IPC分类号： E21B33/14 ,  E21B23/04 ,  E21B23/06 ,  E21B34/06

CPC分类号： E21B33/146 ,  E21B23/0413 ,  E21B23/06 ,  E21B34/063

摘要： Embodiments presented provide for an apparatus that provides a dislodgable plug seat that is used to capture a cement wiper plug for wellbore cementing operations. The apparatus further includes a collar having a ball seat and a closing sleeve configured to be shifted from an open position to a closed position. In the open position, a fluid pathway between an interior volume and a wellbore annulus is unblocked, and in the closed position the fluid pathway is blocked. A split ring is shiftable with the closing sleeve between a retained configuration when the closing sleeve is in the open position and an expanded configuration when the closing sleeve is in the closed position. The split ring holds the dislodgable plug seat in place within the body in the retained configuration and releases the dislodgable plug seat in the expanded configuration.

公开(公告)号：US12024977B2

公开(公告)日：2024-07-02

申请号：US17987367

申请日：2022-11-15

申请人： FORUM US, INC.

发明人： Andrew Webber ,  Jeffery Morrison

IPC分类号： E21B33/16 ,  E21B33/14

CPC分类号： E21B33/165 ,  E21B33/146

摘要： Aspects of the disclosure relate to stage collars and related methods of operation thereof for stage cementing operations. In one implementation, a stage collar for stage cementing operations includes a barrel, and an activation sleeve disposed at least partially in the barrel. The activation sleeve includes first fluid openings. The stage collar includes an activation ring that includes an activation seat. The stage collar includes a first set of shear fasteners coupling the activation ring to the activation sleeve, and a second set of shear fasteners coupling the activation sleeve to the barrel. The stage collar includes a setting piston, and a closing sleeve disposed at least partially in the barrel. The closing sleeve includes second fluid openings. The stage collar includes a third set of shear fasteners coupling the closing sleeve to the barrel.