23 patents
Utility
Cup Plug Having a Large Flow-through Inside Diameter
24 Nov 22
A downhole tool is configured on a wireline adapter kit in the run-in position is disclosed.
Donald Roy Greenlee, Donald Jonathan Greenlee
Filed: 27 Jun 22
Utility
Multi-Cycle Counter System
10 Nov 22
The present disclosed technology relates to a downhole tool activation device, and a method of using the device, where the valve is configured to open when the counter device has moved an activation distance in an activation direction, a piston engaged with the counter device, having a wellbore pressure from a fluid source applied to a first side, and a pressure in a fluid reservoir applied to the second side, the piston configured to move a step distance in a first direction when the wellbore pressure exceeds the pressure in the fluid reservoir, and configured to move a step distance in an opposite direction driven solely by a greater pressure in the fluid reservoir than the wellbore pressure, and a flow restrictor in fluid communication with the fluid reservoir and fluid source, configured to restrict the flow of fluid between the fluid source to the fluid reservoir.
Viggo Brandsdal, Geir Valestrand Aasheim
Filed: 10 May 22
Utility
Compact Downhole Tool
10 Nov 22
A compact downhole tool, such as a frac plug, may include a single frustoconical member and a single set of slips.
Donald Roy Greenlee, Donald Jonathan Greenlee
Filed: 21 Jun 22
Utility
Sleeve for downhole tools
4 Oct 22
Aspects of the present disclosure relate to a downhole tool having a plurality of turbulence-generating channels.
Donald Roy Greenlee
Filed: 2 Apr 20
Utility
Systems and Methods for Plugging an Oil Well
28 Jul 22
A plug assembly for opening a subterranean wellbore comprises a tubular housing and a first frangible element comprising an activation component.
Viggo Brandsdal, Geir Valestrand Aasheim
Filed: 25 Jan 22
Utility
Compact downhole tool
21 Jun 22
A compact downhole tool, such as a frac plug, may include a single frustoconical member and a single set of slips.
Donald Roy Greenlee, Donald Jonathan Greenlee
Filed: 14 Jun 19
Utility
Plugging Device
3 Feb 22
A barrier plug assembly for sealing a subterranean wellbore arranged inside a tubing, the barrier plug assembly comprising: at least one frangible barrier element stacked on a carrier ring; a locking sleeve arranged above the carrier ring and located in a closed fluid chamber; a valve arranged on the closed fluid chamber and in pressure communication with the tubing, the valve configured or allowing or preventing pressure communication in between the tubing and the fluid chamber; a retaining device configured for locking the a carrier ring in place; a crushing element arranged a distance below the one frangible barrier element and configured for crushing the at least one frangible barrier element.
Viggo Brandsdal, Geir Valestrand Aasheim
Filed: 18 Oct 21
Utility
Downhole Assembly for Selectively Sealing Off a Wellbore
9 Dec 21
Downhole assemblies and methods for isolating a wellbore.
W. LYNN FRAZIER
Filed: 24 Aug 21
Utility
Shearable Sleeve
4 Nov 21
A shearable sleeve supports a disintegrable plug element in a pipe string, and may include a first portion including a first circumferential end surface, a seat for supporting the disintegrable plug element, a second portion including a second circumferential end surface, and a surface extending axially between the first and second circumferential end surfaces and formed with one or more radial protrusions adapted to shear off from the rest of the sleeve when being exposed to a predefined axial force, and one or more recesses for receiving one or more loading devices for initiating disintegration of the disintegrable plug element upon contact with the plug, wherein one or more radial protrusions is/are axially offset relative to the first circumferential end surface.
Viggo Brandsdal
Filed: 16 Apr 21
Utility
Plugging device
19 Oct 21
A barrier plug assembly for sealing a subterranean wellbore arranged inside a tubing, the barrier plug assembly comprising: at least one frangible barrier element stacked on a carrier ring; a locking sleeve arranged above the carrier ring and located in a closed fluid chamber; a valve arranged on the closed fluid chamber and in pressure communication with the tubing, the valve configured or allowing or preventing pressure communication in between the tubing and the fluid chamber; a retaining device configured for locking the a carrier ring in place; a crushing element arranged a distance below the one frangible barrier element and configured for crushing the at least one frangible barrier element.
Viggo Brandsdal, Geir Valestrand Aasheim
Filed: 20 Feb 20
Utility
Sleeve for Downhole Tools
7 Oct 21
Aspects of the present disclosure relate to a downhole tool having a plurality of turbulence-generating channels.
Donald Roy Greenlee
Filed: 2 Apr 20
Utility
Plugging Device
26 Aug 21
A barrier plug assembly for sealing a subterranean wellbore arranged inside a tubing, the barrier plug assembly comprising: at least one frangible barrier element stacked on a carrier ring; a locking sleeve arranged above the carrier ring and located in a closed fluid chamber; a valve arranged on the closed fluid chamber and in pressure communication with the tubing, the valve configured or allowing or preventing pressure communication in between the tubing and the fluid chamber; a retaining device configured for locking the a carrier ring in place; a crushing element arranged a distance below the one frangible barrier element and configured for crushing the at least one frangible barrier element.
Viggo BRANDSDAL, Geir VALESTRAND AASHEIM
Filed: 20 Feb 20
Utility
Downhole assembly for selectively sealing off a wellbore
24 Aug 21
Downhole assemblies and methods for isolating a wellbore.
W. Lynn Frazier
Filed: 19 Jul 17
Utility
Filament-reinforced composite material with load-aligned filament windings
25 May 21
A filament-reinforced composite material having with load-aligned filament windings enables improvement of mechanical properties for specific loading of parts made from the material.
Donald Roy Greenlee, Donald Jonathan Greenlee, Brian David Oligschlaeger
Filed: 16 May 18
Utility
Interventionless frangible disk isolation tool
4 Jan 21
A downhole pressure isolation tool is disclosed for use in a tubing string or casing string.
Lakhena Yong, W. Lynn Frazier
Filed: 18 Jul 18
Utility
Downhole assembly for selectively sealing off a wellbore
21 Dec 20
Downhole assemblies and methods for isolating a wellbore.
W. Lynn Frazier
Filed: 4 Mar 20
Utility
Slips with Internal Buttons
16 Dec 20
A slip for use in a downhole tool that includes internal buttons on an internal surface of the slip that engages a setting cone.
Donald Roy Greenlee, Donald Jonathan Greenlee
Filed: 13 Jun 19
Utility
Compact Downhole Tool
16 Dec 20
A compact downhole tool, such as a frac plug, may include a single frustoconical member and a single set of slips.
Donald Roy Greenlee, Donald Jonathan Greenlee
Filed: 13 Jun 19
Utility
Downhole Assembly for Selectively Sealing Off a Wellbore
8 Jul 20
Downhole assemblies and methods for isolating a wellbore.
W. LYNN FRAZIER
Filed: 4 Mar 20
Utility
Split ring sealing assemblies
25 May 20
A settable downhole tool with preset metallic split rings having gaps from their leading edges to their trailing edges.
W. Lynn Frazier
Filed: 8 Aug 17