Patents by Inventor Alistair Gill
Alistair Gill 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: 9359879Abstract: A downhole separator for separating solids from downhole well fluids comprises a cyclonic separation assembly. The assembly comprises a housing with at least one inlet port and an intake member disposed within the housing. The intake member includes a feed tube, a guide member disposed about the feed tube, and a vortex tube coaxially disposed within the feed tube. The assembly also comprises a cyclone body coaxially disposed within the housing and extending axially from the feed tube. In addition, the separator comprises an upper solids collection assembly coupled to the housing and configured to receive the separated solids from the cyclone body. Further, the separator comprises a lower solids collection assembly coupled to the housing and configured to receive the separated solids from the first solids collection assembly.Type: GrantFiled: December 20, 2011Date of Patent: June 7, 2016Assignee: BP CORPORATION NORTH AMERICA INC.Inventors: Alistair Gill, Paul Ellerton, David Fielding
-
Patent number: 9127535Abstract: A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot.Type: GrantFiled: July 9, 2013Date of Patent: September 8, 2015Assignee: BP CORPORATION NORTH AMERICA INC.Inventors: Robert A. Coyle, William Michel, Louis-Claude Porel, Alistair Gill, Paul Ellerton, David Fielding
-
Patent number: 8925637Abstract: A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot.Type: GrantFiled: July 9, 2013Date of Patent: January 6, 2015Assignee: BP Corporation North America, Inc.Inventors: Robert A. Coyle, William Michel, Louis-Claude Porel, Alistair Gill, Paul Ellerton, David Fielding
-
Publication number: 20140174734Abstract: A downhole separator for separating solids from downhole well fluids comprises a cyclonic separation assembly. The assembly comprises a housing with at least one inlet port and an intake member disposed within the housing. The intake member includes a feed tube, a guide member disposed about the feed tube, and a vortex tube coaxially disposed within the feed tube. The assembly also comprises a cyclone body coaxially disposed within the housing and extending axially from the feed tube. In addition, the separator comprises an upper solids collection assembly coupled to the housing and configured to receive the separated solids from the cyclone body. Further, the separator comprises a lower solids collection assembly coupled to the housing and configured to receive the separated solids from the first solids collection assembly.Type: ApplicationFiled: December 20, 2011Publication date: June 26, 2014Applicant: BP Corporation North America Inc.Inventors: Alistair Gill, Paul Ellerton, David Fielding
-
Publication number: 20130299182Abstract: A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot.Type: ApplicationFiled: July 9, 2013Publication date: November 14, 2013Applicant: BP CORPORATION NORTH AMERICA, INC.Inventors: Robert A. Coyle, William Michel, Louis-Claude Porel, Alistair Gill, Paul Ellerton, David Fielding
-
Publication number: 20130299181Abstract: A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot.Type: ApplicationFiled: July 9, 2013Publication date: November 14, 2013Applicant: BP Corporation North America, Inc.Inventors: Robert A. Coyle, William Michel, Louis-Claude Porel, Alistair Gill, Paul Ellerton, David Fielding
-
Patent number: 8511390Abstract: A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot.Type: GrantFiled: December 22, 2010Date of Patent: August 20, 2013Assignee: BP Corporation North America Inc.Inventors: Robert A. Coyle, William Michel, Louis-Claude Porel, Alistair Gill, Paul Ellerton, David Fielding
-
Publication number: 20110186302Abstract: A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot.Type: ApplicationFiled: December 22, 2010Publication date: August 4, 2011Applicant: BP CORPORATION NORTH AMERICA INC.Inventors: Robert A. Coyle, William Michel, Louis-Claude Porel, Alistair Gill, Paul Ellerton, David Fielding
-
Publication number: 20070030547Abstract: An apparatus is described for automatically shifting a lens of a laser focussing optical system, the lens undergoing translational motion along an optical axis, being moved by at least one motor which carries out rotational movement. This rotational movement is converted by a linkage into translational movement to shift the lens.Type: ApplicationFiled: September 30, 2005Publication date: February 8, 2007Inventors: Peter Dullin, Alistair Gill, John Spang
-
Publication number: 20050286576Abstract: An apparatus and method for controlling the power of a laser beam is described. In one embodiment a rotatable Brewster element, rotated by a drive means, is disposed in the propagation path of a laser beam and is aligned along the an axis parallel to the direction of propagation of the laser beam. At least one stationary Brewster element is also disposed in the propagation path of the laser beam. Measuring means is provided to determine the power of the laser beam downstream of the rotatable Brewster element and to generate an actual power value. A control means receives the actual power value from the measuring means, compares it with the desired power value, and provides a control signal for the drive means. The drive means rotates the rotatable Brewster element in response to the control signal in order to minimize the difference between the actual power value and the desired power value.Type: ApplicationFiled: October 8, 2004Publication date: December 29, 2005Inventors: Alistair Gill, Peter Dullin
-
Patent number: 6834062Abstract: The present invention provides a method and apparatus for controlling laser power, using at least two Brewster windows which are aligned along an axis which is parallel to the direction of the laser beam and which are rotatable around said axis, wherein the first Brewster window is rotated in one direction and the second Brewster window is rotated in the opposite direction. Preferably, both Brewster windows only have to rotate each through +/−45° to control transmission of the laser beam from maximum to minimum.Type: GrantFiled: July 22, 2002Date of Patent: December 21, 2004Assignee: Raylase AGInventors: Stephen Hastings, Peter Dullin, Alistair Gill, Erwin Wagner, Peter von Jan, Wolfgang Hauck
-
Publication number: 20030086451Abstract: The present invention provides a method and apparatus for controlling laser power, using at least two Brewster windows which are aligned along an axis which is parallel to the direction of the laser beam and which are rotatable around said axis, wherein the first Brewster window is rotated in one direction and the second Brewster window is rotated in the opposite direction. Preferably, both Brewster windows only have to rotate each through +/−45° to control transmission of the laser beam from maximum to minimum.Type: ApplicationFiled: July 22, 2002Publication date: May 8, 2003Inventors: Stephen Hastings, Peter Dullin, Alistair Gill, Erwin Wagner, Peter Von Jan, Wolfgang Hauck