Patents by Inventor Joseph D. Scranton
Joseph D. Scranton 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).
-
Publication number: 20190242209Abstract: Segmented plug devices for insertion within a tubular to provide for flow restriction and isolation of selected sections within the tubular. Systems for plugging a tubular using an expandable segmented plug to form a ring that engages with an element to obstruct flow along the tubing. Tools for deploying and setting segmented plug devices within a tubular.Type: ApplicationFiled: February 5, 2019Publication date: August 8, 2019Applicant: GR Energy Services LLCInventors: James W. Anthony, Joseph D. Scranton, Cameron M. Bryant, Sam M. Schroit, Jeffrey B. Wensrich
-
Patent number: 9062514Abstract: A tool that is usable with a well includes a valve element, a mechanical operator, a pressure chamber and a regulator. The valve element has a first state and a second state. The mechanical operator responds to a predetermined signature in an annulus pressure relative to a baseline level of the annulus pressure to transition the valve element from the first state to the second state. The pressure chamber exerts a chamber pressure to bias the mechanical operator to transition from the second state to the first state. The baseline level is capable of varying over time, and the regulator regulates the chamber pressure based on the baseline level.Type: GrantFiled: August 16, 2013Date of Patent: June 23, 2015Assignee: Schlumberger Technology CorporationInventors: Joseph D. Scranton, Kamil Ifitkhar, Colin Longfield
-
Patent number: 8839868Abstract: A technique enables protection of subsea wells. The technique employs a subsea test tree designed to ensure control over the well in a variety of situations. The subsea test tree is formed with at least one shut-off valve to protect against unwanted release of fluids from the subsea test tree. The subsea test tree also is coupled with and controlled by a control system having a subsea control module mounted to an interior mandrel.Type: GrantFiled: September 9, 2010Date of Patent: September 23, 2014Assignee: Schlumberger Technology CorporationInventors: Joseph D. Scranton, Tauna Leonardi, John Skaggs, John Yarnold, John Kerr
-
Publication number: 20130327539Abstract: A tool that is usable with a well includes a valve element, a mechanical operator, a pressure chamber and a regulator. The valve element has a first state and a second state. The mechanical operator responds to a predetermined signature in an annulus pressure relative to a baseline level of the annulus pressure to transition the valve element from the first state to the second state. The pressure chamber exerts a chamber pressure to bias the mechanical operator to transition from the second state to the first state. The baseline level is capable of varying over time, and the regulator regulates the chamber pressure based on the baseline level.Type: ApplicationFiled: August 16, 2013Publication date: December 12, 2013Applicant: Schlumberger Technology CorporationInventors: Joseph D. Scranton, Kamil Iftikhar, Colin Longfield
-
Publication number: 20130133894Abstract: An isolation assembly that employs a pack-off device at an annular space between a landing string and a riser. The assembly is configured to ensure sealing off of an annular space below the pack-off device such that potentially hazardous well testing applications may safely proceed early on in completions operations. That is, in advance of any significant rig-level pressure control equipment hook-up, the pack-off device may seal off the annulus from any potential hydrocarbon leaks up the riser toward the rig. Further, where such seal holds back pressures exceeding a predetermined level, a burst element may be incorporated into the wall of the riser to allow for controlled venting therefrom.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Inventors: Joseph D. Scranton, Riley Suffridge
-
Patent number: 8336629Abstract: A technique enables a simplified approach for providing subsea hydraulic control. A subsea installation comprises one or more devices that are actuated hydraulically. A simple signal carrier, such as a wireline logging cable, can be routed down to the subsea installation. However, hydraulic fluid for controlling the one or more hydraulic devices in the subsea installation is delivered via an open water umbilical that extends to the subsea installation from a separate workover control system.Type: GrantFiled: October 2, 2009Date of Patent: December 25, 2012Assignee: Schlumberger Technology CorporationInventors: Vladimir Vaynshteyn, Joseph D. Scranton
-
Patent number: 8002041Abstract: Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one another, with a pressurized gas in the first chamber and a pressurized fluid in the second chamber. A third chamber in the housing abuts the accumulator and contains silicon oil fluid. A movable piston is located within the housing proximate the second end of the housing. Ambient pressure is communicated to one end of the piston, and ambient pressure plus the pressure in the second chamber is communicated to the second end of the piston. The cross-sectional areas of the two ends of the piston are selected to optimize the pressure at which the piston begins to expel fluid from the second chamber.Type: GrantFiled: September 25, 2009Date of Patent: August 23, 2011Assignee: Schlumberger Technology CorporationInventors: Tauna Leonardi, Joseph D. Scranton
-
Patent number: 7984764Abstract: Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one another, with a pressurized gas in the first chamber and a pressurized fluid in the second chamber. A third chamber in the housing abuts the accumulator and contains silicon oil fluid. A movable piston is located within the housing proximate the second end of the housing. Ambient pressure is communicated to one end of the piston, and ambient pressure plus the pressure in the second chamber is communicated to the second end of the piston. The cross-sectional areas of the two ends of the piston are selected to optimize the pressure at which the piston begins to expel fluid from the second chamber.Type: GrantFiled: September 25, 2009Date of Patent: July 26, 2011Assignee: Schlumberger Technology CorporationInventors: Tauna Leonardi, Joseph D. Scranton
-
Publication number: 20110120722Abstract: A technique enables protection of subsea wells. The technique employs a subsea test tree designed to ensure control over the well in a variety of situations. The subsea test tree is formed with at least one shut-off valve to protect against unwanted release of fluids from the subsea test tree. The subsea test tree also is coupled with and controlled by a control system having a subsea control module mounted to an interior mandrel.Type: ApplicationFiled: September 9, 2010Publication date: May 26, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Joseph D. Scranton, Tauna Leonardi, John Skaggs, John Yarnold, John Kerr
-
Publication number: 20110083859Abstract: A tool that is usable with a well includes a valve element, a mechanical operator, a pressure chamber and a regulator. The valve element has a first state and a second state. The mechanical operator responds to a predetermined signature in an annulus pressure relative to a baseline level of the annulus pressure to transition the valve element from the first state to the second state. The pressure chamber exerts a chamber pressure to bias the mechanical operator to transition from the second state to the first state. The baseline level is capable of varying over time, and the regulator regulates the chamber pressure based on the baseline level.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Joseph D. Scranton, Kamil Iftikhar, Colin Longfield
-
Publication number: 20110079395Abstract: A technique enables a simplified approach for providing subsea hydraulic control. A subsea installation comprises one or more devices that are actuated hydraulically. A simple signal carrier, such as a wireline logging cable, can be routed down to the subsea installation. However, hydraulic fluid for controlling the one or more hydraulic devices in the subsea installation is delivered via an open water umbilical that extends to the subsea installation from a separate workover control system.Type: ApplicationFiled: October 2, 2009Publication date: April 7, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Vladimir Vaynshteyn, Joseph D. Scranton
-
Publication number: 20110005770Abstract: A technique enables protection of subsea wells. The technique employs a subsea test tree and associated control system to ensure control over the well in a variety of situations. The subsea test tree may be formed with an upper portion releasably coupled to a lower portion. The upper portion employs at least one upper shut-off valve, and the lower portion employs at least one lower shut-off valve to protect against unwanted release of fluids from either above or below the subsea test tree. The subsea test tree also is coupled with the control system in a manner which allows control to be exercised over the at least one upper shut-often valve and the at least one lower shut-off valve.Type: ApplicationFiled: May 3, 2010Publication date: January 13, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Joseph D. Scranton, John Yarnold, Tauna Leonardi, John Skaggs
-
Publication number: 20100071907Abstract: Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one another, with a pressurized gas in the first chamber and a pressurized fluid in the second chamber. A third chamber in the housing abuts the accumulator and contains silicon oil fluid. A movable piston is located within the housing proximate the second end of the housing. Ambient pressure is communicated to one end of the piston, and ambient pressure plus the pressure in the second chamber is communicated to the second end of the piston. The cross-sectional areas of the two ends of the piston are selected to optimize the pressure at which the piston begins to expel fluid from the second chamber.Type: ApplicationFiled: September 25, 2009Publication date: March 25, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Tauna Leonardi, Joseph D. Scranton
-
Publication number: 20100012327Abstract: Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one another, with a pressurized gas in the first chamber and a pressurized fluid in the second chamber. A third chamber in the housing abuts the accumulator and contains silicon oil fluid. A movable piston is located within the housing proximate the second end of the housing. Ambient pressure is communicated to one end of the piston, and ambient pressure plus the pressure in the second chamber is communicated to the second end of the piston. The cross-sectional areas of the two ends of the piston are selected to optimize the pressure at which the piston begins to expel fluid from the second chamber.Type: ApplicationFiled: September 25, 2009Publication date: January 21, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Tauna Leonardi, Joseph D. Scranton
-
Patent number: 7628207Abstract: Pressure-balanced accumulator apparatus for use in subsea operations is disclosed which comprises a housing and an accumulator within the housing at the first end of the housing. The accumulator has first and second chambers that are hermetically sealed from one another, with a pressurized gas in the first chamber and a pressurized fluid in the second chamber. A third chamber in the housing abuts the accumulator and contains silicon oil fluid. A movable piston is located within the housing proximate the second end of the housing. Ambient pressure is communicated to one end of the piston, and ambient pressure plus the pressure in the second chamber is communicated to the second end of the piston. The cross-sectional areas of the two ends of the piston are selected to optimize the pressure at which the piston begins to expel fluid from the second chamber.Type: GrantFiled: April 18, 2006Date of Patent: December 8, 2009Assignee: Schlumberger Technology CorporationInventors: Tauna Leonardi, Joseph D. Scranton
-
Patent number: 5069280Abstract: A gravel packer and service tool combination for use in subterranean wells operates sequentially to lock and seal the packer in the well at a producing formation, release a mechanical connection between the packer and service tool, and open a passage through which gravel packing can be performed. Each operational step can be performed in primary and secondary fluid pressure-responsive modes of operation. The secondary mode of operation can be employed in the event the primary mode of operation fails.Type: GrantFiled: February 12, 1990Date of Patent: December 3, 1991Assignee: Dowell Schlumberger IncorporatedInventors: L. Michael McKee, Joseph D. Scranton, Robert L. Brookey, Derrel Gurley, Ernie Sodich
-
Patent number: 4862957Abstract: A packer and service tool assembly for oil or gas well preparation includes a disengageable coupling mechanism which permits the tool to be screwed into and out of the packer and which can be hydraulically disengaged so that the tool can be removed without applying torque to the tool or workstring. A releasable ratchet mechanism is also provided in the packer for trapping the setting loads when the packer is set in the casing. The ratchet mechanism is releasable by pulling up a housing portion which cammingly engages collapsible ratchet fingers thereby disengaging the ratchet finger trapping teeth from a stationary ratchet ring.Type: GrantFiled: February 23, 1988Date of Patent: September 5, 1989Assignee: Dowell Schlumberger IncorporatedInventor: Joseph D. Scranton
-
Patent number: 4660637Abstract: A packer and service tool assembly for oil or gas well preparation includes a disengageable coupling mechanism which permits the tool to be screwed into and out of the packer and which can be hydraulically disengaged so that the tool can be removed without applying torque to the tool or workstring. A releaseable ratchet mechanism is also provided in the packer for trapping the setting loads when the packer is set in the casing. The ratchet mechanism is releasable by pulling up a housing portion which cammingly engages collapsible ratchet fingers thereby disengaging the ratchet finger trapping teeth from a stationary ratchet ring.Type: GrantFiled: September 11, 1985Date of Patent: April 28, 1987Assignee: Dowell Schlumberger IncorporatedInventors: Howard L. McGill, Joseph D. Scranton