Patents Assigned to Stellarton Technologies Inc.
-
Publication number: 20130140040Abstract: A downhole valve for insertion in a production tubing string permits recirculation of fluid pumped into the casing annulus. The valve includes a cylindrical housing defining an opening, an internal mandrel disposed within the housing, defining a central bore and defining an opening, a valve between the housing and the mandrel, wherein said valve opens to allow fluid communication from the mandrel central bore to the annulus space in response to a pressure differential between the mandrel central bore and the annular space, and biasing means for biasing the valve in a closed position.Type: ApplicationFiled: February 4, 2013Publication date: June 6, 2013Applicant: STELLARTON TECHNOLOGIES INC.Inventor: STELLARTON TECHNOLOGIES INC.
-
Patent number: 8387710Abstract: A downhole valve for insertion in a production tubing string permits recirculation of fluid pumped into the casing annulus. The valve includes a cylindrical housing defining an opening, an internal mandrel disposed within the housing, defining a central bore and defining an opening, a valve between the housing and the mandrel, wherein said valve opens to allow fluid communication from the mandrel central bore to the annulus space in response to a pressure differential between the mandrel central bore and the annular space, and biasing means for biasing the valve in a closed position. The valve may be set within a completion string by wireline techniques.Type: GrantFiled: March 5, 2009Date of Patent: March 5, 2013Assignee: Stellarton Technologies Inc.Inventors: Grant George, Geoff Steele, Jordan James
-
Patent number: 8347954Abstract: An intermittent lift plunger includes at least one seal mandrel, a bottom sub and an upper valve assembly. The valve assembly is closed by a well bottom stop which inserts into the lift plunger and opened by a lubricator stop at the top of the well. The seal mandrel includes a sleeve seal formed from an elastomeric rubber or plastic, which inflates to engage the well bore surface when the valve is closed and a pressure differential exists.Type: GrantFiled: February 6, 2008Date of Patent: January 8, 2013Assignee: Stellarton Technologies Inc.Inventors: Ryan Amies, Grant George, Jordan James, Geoff Steele
-
Publication number: 20120080196Abstract: A plunger lift production system uses a production string including a bottom hole assembly, a production tubing having an inside diameter and including a safety valve having an inside diameter, and a plunger with an outside diameter which closely matches the inside diameter of the safety valve, and an expandable lug and pad assembly, which when expanded closely matches the inside diameter of the production tubing, and when not expanded closely matches the inside diameter of the safety valve.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicant: STELLARTON TECHNOLOGIES INC.Inventors: Eric LAING, Geoff STEELE
-
Patent number: 8056621Abstract: A master ball valve with an integrated main hanger below the valve which may be used to hang jointed tubing, coil tubing, or electrified coil tubing for connection with an electric submersible pump.Type: GrantFiled: May 5, 2009Date of Patent: November 15, 2011Assignee: Stellarton Technologies Inc.Inventors: Curtis Phillip Ring, Grant George, Geoff Steele, Jordan James
-
Publication number: 20090272522Abstract: A master ball valve with an integrated main hanger below the valve which may be used to hang jointed tubing, coil tubing, or electrified coil tubing for connection with an electric submersible pump.Type: ApplicationFiled: May 5, 2009Publication date: November 5, 2009Applicant: STELLARTON TECHNOLOGIES INC.Inventors: Curtis Phillip RING, Grant GEORGE, Geoff STEELE, Jordan JAMES
-
Publication number: 20090242210Abstract: A downhole valve for insertion in a production tubing string permits recirculation of fluid pumped into the casing annulus. The valve includes a cylindrical housing defining an opening, an internal mandrel disposed within the housing, defining a central bore and defining an opening, a valve between the housing and the mandrel, wherein said valve opens to allow fluid communication from the mandrel central bore to the annulus space in response to a pressure differential between the mandrel central bore and the annular space, and biasing means for biasing the valve in a closed position.Type: ApplicationFiled: March 5, 2009Publication date: October 1, 2009Applicant: STELLARTON TECHNOLOGIES INC.Inventors: Grant GEORGE, Geoff STEELE, Jordan JAMES
-
Publication number: 20090142207Abstract: An electric submersible pumping system includes a motor comprising an inner hollow core rotor and an outer stator, a gearbox comprising a hollow core input shaft connected to the motor rotor, and a hollow core output shaft, and a pump driven by the gearbox output shaft, the pump having an intake, and wherein the pump output is directed through the hollow core output shaft and into the hollow core motor rotor. The motor section is disposed above the gearbox and pump.Type: ApplicationFiled: December 1, 2008Publication date: June 4, 2009Applicant: STELLARTON TECHNOLOGIES INC.Inventors: Curt Ring, Grant George, Geoff Steele, Pat McCleer
-
Publication number: 20080185141Abstract: An intermittent lift plunger includes at least one seal mandrel, a bottom sub and an upper valve assembly. The valve assembly is closed by a well bottom stop which inserts into the lift plunger and opened by a lubricator stop at the top of the well. The seal mandrel includes a sleeve seal formed from an elastomeric rubber or plastic, which inflates to engage the well bore surface when the valve is closed and a pressure differential exists.Type: ApplicationFiled: February 6, 2008Publication date: August 7, 2008Applicant: STELLARTON TECHNOLOGIES INC.Inventors: Ryan AMIES, Grant GEORGE, Jordan JAMES, Geoff STEELE
-
Publication number: 20080164017Abstract: A bottom hole assembly for an intermittent lift plunger system includes a retrievable downhole anchor which may be set and reset in one downhole trip, a retrievable packing device, and a plunger stop.Type: ApplicationFiled: March 24, 2008Publication date: July 10, 2008Applicant: STELLARTON TECHNOLOGIES INC.Inventors: Grant GEORGE, Geoff STEELE, Brent KOHLS
-
Patent number: 7347273Abstract: A bottom hole assembly for an intermittent lift plunger system includes a retrievable downhole anchor which may be set and reset in one downhole trip, a retrievable packing device, and a plunger stop.Type: GrantFiled: October 21, 2005Date of Patent: March 25, 2008Assignee: Stellarton Technologies Inc.Inventors: Grant George, Geoff Steele, Brent Kohls