Patents by Inventor Gregory M. Dunn
Gregory M. Dunn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11713639Abstract: A system for forming a seal between wellbore components includes an annular seal arranged between a first wellbore component and a second wellbore component, the seal comprising a first leg and a second leg, wherein upon activation of the seal, the first leg engages the first wellbore component and the second leg engages the second wellbore component. The system also includes an energizing ring adapted to activate the seal. The first wellbore component includes a groove profile, the groove profile having a plurality of grooves including respective first surfaces and second surfaces, the respective first surfaces arranged at respective first angles and the respective second surfaces arranged at respective second angles, the respective first and second angles being different to form respective asymmetrical grooves.Type: GrantFiled: January 21, 2020Date of Patent: August 1, 2023Assignee: Baker Hughes Oilfield Operations LLCInventors: Joseph W. Pallini, Baozhi Zhu, Kevin E. O'Dell, Gregory M. Dunn, Luke McElmurry
-
Publication number: 20210301607Abstract: A subsea mud evaluation system includes a blowout preventer (BOP), coupled to a wellbore formed in an underground formation, the blowout preventer being positioned proximate a sea floor. The system also includes a riser fluidly coupled to the BOP, the riser extending from the BOP to a sea surface location to transport drilling mud between the wellbore and the sea surface location. The system further includes a dissolved gas detection and mitigation systems (DMS), fluidly coupled to at least one of the BOP or the riser, the DMS receiving a quantity of drilling mud and determining a subsea bubble point of the quantity of drilling mud, corresponding to a pressure where a dissolved gas within the drilling mud is liberated.Type: ApplicationFiled: March 27, 2020Publication date: September 30, 2021Applicant: Baker Hughes Oilfield Operations LLCInventor: Gregory M. Dunn
-
Publication number: 20210222508Abstract: A system for forming a seal between wellbore components includes an annular seal arranged between a first wellbore component and a second wellbore component, the seal comprising a first leg and a second leg, wherein upon activation of the seal, the first leg engages the first wellbore component and the second leg engages the second wellbore component. The system also includes an energizing ring adapted to activate the seal. The first wellbore component includes a groove profile, the groove profile having a plurality of grooves including respective first surfaces and second surfaces, the respective first surfaces arranged at respective first angles and the respective second surfaces arranged at respective second angles, the respective first and second angles being different to form respective asymmetrical grooves.Type: ApplicationFiled: January 21, 2020Publication date: July 22, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Joseph W. Pallini, Baozhi Zhu, Kevin E. O'Dell, Gregory M. Dunn, Luke McElmurry
-
Patent number: 8327945Abstract: A valve, such as a ball valve, is assembled and carried by a running tool. The valve is actuated by an actuator that is triggered by the running tool, and thus opens and closes communication between the drill pipe and the volume below the running tool. An actuating cam is assembled below the running tool that interfaces the actuator. The actuating cam is threaded such that it travels axially as the drill pipe is turned. A profile on the actuating cam is timed with the function of the running tool and controls the action of the actuator such that the valve is open when the running tool function requires communication with the volume below the running tool and the valve is closed when the running tool needs to be pressurized.Type: GrantFiled: April 30, 2009Date of Patent: December 11, 2012Assignee: Vetco Gray Inc.Inventors: Nicholas P. Gette, Gregory M. Dunn
-
Patent number: 8220550Abstract: A running tool for coaxially setting together subsea wellhead housings, such as a high pressure wellhead housing within a low pressure wellhead housing. The tool includes a conically shaped body that is insertable within the inner most housing, a frame with a base, an axial bore and latches. The base perpendicularly rests on top of an inner housing and the latches extend from the base to connect with an outer housing. The bore is formed to accommodate the tool freely therethrough. Wedge shaped members are provided between the base and inner housing top having their wide ends contactable by the tool. Urging the tool through the bore pushes the wedges radially outward that imparts a force between the base and inner housing top in one direction. The attached latches apply an oppositely directed force onto the outer housing.Type: GrantFiled: June 23, 2009Date of Patent: July 17, 2012Assignee: Vetco Gray Inc.Inventors: Gregory M. Dunn, Joseph W. Pallini, Jr.
-
Patent number: 8127853Abstract: A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.Type: GrantFiled: February 28, 2011Date of Patent: March 6, 2012Assignee: Vetco Gray Inc.Inventors: Joseph W. Pallini, Rockford D. Lyle, Gregory M. Dunn
-
Publication number: 20110155382Abstract: A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.Type: ApplicationFiled: February 28, 2011Publication date: June 30, 2011Applicant: Vetco Gray Inc.Inventors: Joseph W. Pallini, Rockford D. Lyle, Gregory M. Dunn
-
Patent number: 7896081Abstract: A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.Type: GrantFiled: May 9, 2008Date of Patent: March 1, 2011Assignee: Vetco Gray Inc.Inventors: Joseph W. Pallini, Rockford D. Lyle, Gregory M. Dunn
-
Publication number: 20100276153Abstract: A valve, such as a ball valve, is assembled and carried by a running tool. The valve is actuated by an actuator that is triggered by the running tool, and thus opens and closes communication between the drill pipe and the volume below the running tool. An actuating cam is assembled below the running tool that interfaces the actuator. The actuating cam is threaded such that it travels axially as the drill pipe is turned. A profile on the actuating cam is timed with the function of the running tool and controls the action of the actuator such that the valve is open when the running tool function requires communication with the volume below the running tool and the valve is closed when the running tool needs to be pressurized.Type: ApplicationFiled: April 30, 2009Publication date: November 4, 2010Applicant: Vetco Gray Inc.Inventors: Nicholas P. Gette, Gregory M. Dunn
-
Publication number: 20090314494Abstract: A running tool for coaxially setting together subsea wellhead housings, such as a high pressure wellhead housing within a low pressure wellhead housing. The tool includes a conically shaped body that is insertable within the inner most housing, a frame with a base, an axial bore and latches. The base perpendicularly rests on top of an inner housing and the latches extend from the base to connect with an outer housing. The bore is formed to accommodate the tool freely therethrough. Wedge shaped members are provided between the base and inner housing top having their wide ends contactable by the tool. Urging the tool through the bore pushes the wedges radially outward that imparts a force between the base and inner housing top in one direction. The attached latches apply an oppositely directed force onto the outer housing.Type: ApplicationFiled: June 23, 2009Publication date: December 24, 2009Applicant: Vetco Gray Inc.Inventors: Gregory M. Dunn, Joseph W. Pallini, JR.
-
Publication number: 20090277645Abstract: A tieback connector connects a tieback conduit from an offshore platform to a subsea wellhead assembly. The tieback connector has a mandrel that is connected to a string of tieback conduit and a sleeve and load ring that are carried by the mandrel. The load ring is radially expansible and has a conical portion with internal threads. The load ring has an external grooved profile that engages an internal grooved profile in the subsea assembly. The mandrel is rotatable relative to the sleeve while in its lower position, causing the load ring to further expand outward into engagement with the internal profile. A locking member is carried below the load ring on an exterior cam surface of the mandrel. The cam surface moves the locking member outward when the mandrel moves downward into engagement with an internal profile in the subsea assembly.Type: ApplicationFiled: May 9, 2008Publication date: November 12, 2009Applicant: Vetco Gray Inc.Inventors: Joseph W. Pallini, Rockford D. Lyle, Gregory M. Dunn