Patents by Inventor Christopher A. Hall
Christopher A. Hall 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).
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Patent number: 10364640Abstract: A packer is used for setting downhole in tubing subject to downhole flow at a high flow rate. The packer includes a setting element, a slip element, and a packing element. The setting element is disposed on the packer toward an uphole end and is activated hydraulically to move in a downhole direction toward a downhole end of the packer. The slip element is disposed toward the downhole end and is moveable outward toward the tubing in a first stage in response to the movement of the setting element. The packing element is disposed on the other elements and is at least partially carried by the setting element. The packing element is compressible outward toward the tubing in a second stage, after the first stage, in response to the movement of the setting element. Additionally, a choke ring or other element disposed on the packer at least downhole of the packing element can move outward toward the tubing in response to the setting movement to restrict the downhole flow in the annulus to a lower flow rate.Type: GrantFiled: September 26, 2016Date of Patent: July 30, 2019Assignee: Weatherford Technology Holdings, LLCInventors: James A. Rochen, Shawn J. Treadaway, Tracy M. Martin, Christopher A. Hall
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Patent number: 10280718Abstract: A device and method allows a bore valve in the washpipe and in certain instances a port valve or sliding sleeve to open or close upon command from the surface so that gravel slurry may be placed in a wellbore.Type: GrantFiled: August 20, 2016Date of Patent: May 7, 2019Assignee: Weatherford Technology Holdings, LLCInventors: John P. Broussard, Christopher A. Hall, Ronald van Petegem
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Patent number: 10082007Abstract: A treatment assembly treats zones of a horizontal borehole. For example, the assembly can gravel pack a zone by delivering slurry down a workstring. The slurry exits the workstring's outlet and pass to the borehole annulus of the zone through a flow port in the assembly. The gravel in the slurry can pack the borehole in an alpha-beta wave from toe to heel, and the fluid returns from the borehole flow through a screen back into the assembly. After gravel packing, operators remove excess slurry from the workstring by reverse circulating down the assembly to carry the excess slurry uphole through the workstring. Closures on the assembly prevent the reverse circulation from communicating through the screens to the borehole annulus. Additionally, flow valves can be used on the flow ports to selectively open and close them.Type: GrantFiled: May 20, 2014Date of Patent: September 25, 2018Assignee: Weatherford Technology Holdings, LLCInventors: John P. Broussard, Christopher A. Hall
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Publication number: 20180087347Abstract: A packer is used for setting downhole in tubing subject to downhole flow at a high flow rate. The packer includes a setting element, a slip element, and a packing element. The setting element is disposed on the packer toward an uphole end and is activated hydraulically to move in a downhole direction toward a downhole end of the packer. The slip element is disposed toward the downhole end and is moveable outward toward the tubing in a first stage in response to the movement of the setting element. The packing element is disposed on the other elements and is at least partially carried by the setting element. The packing element is compressible outward toward the tubing in a second stage, after the first stage, in response to the movement of the setting element. Additionally, a choke ring or other element disposed on the packer at least downhole of the packing element can move outward toward the tubing in response to the setting movement to restrict the downhole flow in the annulus to a lower flow rate.Type: ApplicationFiled: September 26, 2016Publication date: March 29, 2018Inventors: James A. Rochen, Shawn J. Treadaway, Tracy M. Martin, Christopher A. Hall
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Patent number: 9725989Abstract: A sand control device is used for restricting the flow of particles from a subsurface formation into a tubular body within a wellbore during production operations. The sand control device is divided into compartments along its length that provide redundancy for particle filtration. Each compartment first comprises a base pipe. The base pipe defines an elongated tubular body having a permeable section and an impermeable section within each compartment. Each compartment also comprises a first filtering conduit and a second filtering conduit. The filtering conduits comprise filtering media and generally circumscribe the base pipe. The filtering conduits are arranged so that the first filtering conduit is adjacent to the non-permeable section of the base pipe, while the second filtering conduit is adjacent to the permeable section of the base pipe.Type: GrantFiled: February 24, 2014Date of Patent: August 8, 2017Assignee: ExxonMobil Upstream Research CompanyInventors: Christian S. Mayer, Charles S. Yeh, David A. Howell, Pavlin B. Entchev, Eric R. Grueschow, Ted A. Long, Tracy J. Moffett, Michael D. Barry, Michael T. Hecker, John S. Sladic, Christopher A. Hall, Stephen McNamee
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Patent number: 9695675Abstract: A screen assembly can be used for “gravel pack” or “frac pack” operations and can then withstand high rate injections. The disclosed screen assembly is able to withstand the flow of the packing operation by not allowing fluid passage from the annulus to inside the screen assembly. Then, the screen assembly can be opened and facilitate high rate injection for the life of the well. To achieve this, the disclosed screen assembly does not allow slurry flow to enter the screen assembly during the packing operation. Then, after the packing is completed, the screen assembly provides enough open flow area so that a high injection rate with solid content can be introduced into the annulus without eroding the screen.Type: GrantFiled: December 30, 2014Date of Patent: July 4, 2017Assignee: Weatherford Technology Holdings, LLCInventor: Christopher A. Hall
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Patent number: 9677383Abstract: A gravel pack apparatus for a wellbore has a shunt tube disposed along the apparatus near a wellscreen. The shunt tube is typically composed of stainless steel and has an internal passage for conducting slurry. Along its length, the tube has flow ports for passing the conducted slurry into the wellbore. The exit ports can use erosion inserts composed of erodible material, barrier inserts having breakable barriers, flow nozzles with external sheaths or caps, erosion-resistant bushings disposed on the flow nozzles, etc. The tube can also include a tube body having the exit ports and flow nozzles integrally formed thereon. The tube body can couple end-to-end with sections of shunt tube.Type: GrantFiled: February 26, 2014Date of Patent: June 13, 2017Assignee: Weatherford Technology Holdings, LLCInventors: John S. Sladic, Stephen McNamee, John Broussard, Christopher A. Hall, Floyd R. Simonds
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Patent number: 9638013Abstract: A completion joint 100 has two sand control jackets 120A-B connected on each end of an intermediately-mounted inflow control device 130. Both jackets 120A-B communicate with a housing chamber 155 through dedicated open end-rings 140A-B. The basepipe's flow openings 118 are isolated from this housing chamber 155 by a sleeve 160 fitted with flow ports 170. The housing 150 is removable to allow access to the flow ports 170 for pinning to configure the ports 170 open or closed for a given implementation.Type: GrantFiled: February 24, 2014Date of Patent: May 2, 2017Assignee: ExxonMobil Upstream Research CompanyInventors: Charles S. Yeh, Tracy J. Moffett, John S. Sladic, Christopher A. Hall, Stephen McNamee
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Publication number: 20160356129Abstract: A device and method allows a bore valve in the washpipe and in certain instances a port valve or sliding sleeve to open or close upon command from the surface so that gravel slurry may be placed in a wellbore.Type: ApplicationFiled: August 20, 2016Publication date: December 8, 2016Inventors: John P. Broussard, Christopher A. Hall, Ronald van Petegem
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Patent number: 9447661Abstract: An apparatus and method allow gravel pack slurry to be placed in a borehole annulus from the toe towards the heel to reduce the pressure acting upon the heel of the borehole during the gravel placement operation. By reducing the pressure on the heel, the gravel pack slurry may be placed in longer sections of the borehole in a single operation. Additionally, excess slurry in the inner string can be disposed in the borehole annulus around the shoe track of the apparatus, and fluid returns can flow up the apparatus through a bypass.Type: GrantFiled: September 13, 2012Date of Patent: September 20, 2016Assignee: Weatherford Technology Holdings, LLCInventors: John P. Broussard, Christopher A. Hall, Patrick J. Zimmerman, Brian J. Ritchey, Ronald van Petegem
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Patent number: 9441454Abstract: A device and method allows a bore valve in the washpipe and in certain instances a port valve or sliding sleeve to open or close upon command from the surface so that gravel slurry may be placed in a wellbore.Type: GrantFiled: January 10, 2013Date of Patent: September 13, 2016Assignee: Weatherford Technology Holdings, LLCInventors: John P. Broussard, Christopher A. Hall, Ronald van Petegem
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Patent number: 9428997Abstract: A gravel pack assembly includes screen sections with a packer between them. A first screen section communicates an uphole annulus with the assembly's interior passage, and a second screen section communicates a downhole annulus with the interior passage. A housing of the packer has an internal bore communicating with the assembly's interior passage and has an internal bypass communicating external ports with one another. A first packer element disposed between the external ports restricts gravel passage at least from the uphole to the downhole annulus. A second packer element disposed downhole from a second of the external ports is independently actuated to isolate fluid passage between the uphole and downhole annulus. One or more transport tubes communicate slurry from the uphole annulus to the internal bypass once the uphole annulus is packed with gravel.Type: GrantFiled: September 10, 2013Date of Patent: August 30, 2016Assignee: Weatherford/Lamb, Inc.Inventors: John P. Broussard, Christopher A. Hall
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Patent number: 9163478Abstract: A device and method that allows a gravel slurry to placed in a wellbore from the toe towards the heel to reduce the pressure acting upon the heel of the wellbore during the gravel placement operation. By reducing the pressure acting upon the heel gravel slurry may be placed in longer sections of the wellbore in a single operation.Type: GrantFiled: October 26, 2012Date of Patent: October 20, 2015Assignee: Weatherford Technology Holdings, LLCInventors: John P. Broussard, Christopher A. Hall, Patrick J. Zimmerman, Glen Robitaille
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Publication number: 20150192001Abstract: A screen assembly can be used for “gravel pack” or “frac pack” operations and can then withstand high rate injections. The disclosed screen assembly is able to withstand the flow of the packing operation by not allowing fluid passage from the annulus to inside the screen assembly. Then, the screen assembly can be opened and facilitate high rate injection for the life of the well. To achieve this, the disclosed screen assembly does not allow slurry flow to enter the screen assembly during the packing operation. Then, after the packing is completed, the screen assembly provides enough open flow area so that a high injection rate with solid content can be introduced into the annulus without eroding the screen.Type: ApplicationFiled: December 30, 2014Publication date: July 9, 2015Inventor: Christopher A. Hall
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Publication number: 20150068743Abstract: A gravel pack assembly includes screen sections with a packer between them. A first screen section communicates an uphole annulus with the assembly's interior passage, and a second screen section communicates a downhole annulus with the interior passage. A housing of the packer has an internal bore communicating with the assembly's interior passage and has an internal bypass communicating external ports with one another. A first packer element disposed between the external ports restricts gravel passage at least from the uphole to the downhole annulus. A second packer element disposed downhole from a second of the external ports is independently actuated to isolate fluid passage between the uphole and downhole annulus. One or more transport tubes communicate slurry from the uphole annulus to the internal bypass once the uphole annulus is packed with gravel.Type: ApplicationFiled: September 10, 2013Publication date: March 12, 2015Applicant: WEATHERFORD/LAMB, INC.Inventors: John P. Broussard, Christopher A. Hall
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Publication number: 20140262260Abstract: A sand control device is used for restricting the flow of particles from a subsurface formation into a tubular body within a wellbore during production operations. The sand control device is divided into compartments along its length that provide redundancy for particle filtration. Each compartment first comprises a base pipe. The base pipe defines an elongated tubular body having a permeable section and an impermeable section within each compartment. Each compartment also comprises a first filtering conduit and a second filtering conduit. The filtering conduits comprise filtering media and generally circumscribe the base pipe. The filtering conduits are arranged so that the first filtering conduit is adjacent to the non-permeable section of the base pipe, while the second filtering conduit is adjacent to the permeable section of the base pipe.Type: ApplicationFiled: February 24, 2014Publication date: September 18, 2014Inventors: Christian S. Mayer, Charles S. Yeh, David A. Howell, Pavlin B. Entchev, Eric R. Grueschow, Ted A. Long, Tracy J. Moffett, Michael D. Barry, Michael T. Hecker, John S. Sladic, Christopher A. Hall, Stephen McNamee
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Publication number: 20140262322Abstract: A completion joint 100 has two sand control jackets 120A-B connected on each end of an intermediately-mounted inflow control device 130. Both jackets 120A-B communicate with a housing chamber 155 through dedicated open end-rings 140A-B. The basepipe's flow openings 118 are isolated from this housing chamber 155 by a sleeve 160 fitted with flow ports 170. The housing 150 is removable to allow access to the flow ports 170 for pinning to configure the ports 170 open or closed for a given implementation.Type: ApplicationFiled: February 24, 2014Publication date: September 18, 2014Inventors: Charles S. Yeh, Tracy J. Moffett, John S. Sladic, Christopher A. Hall, Stephen McNamee
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Publication number: 20140251609Abstract: A treatment assembly treats zones of a horizontal borehole. For example, the assembly can gravel pack a zone by delivering slurry down a workstring. The slurry exits the workstring's outlet and pass to the borehole annulus of the zone through a flow port in the assembly. The gravel in the slurry can pack the borehole in an alpha-beta wave from toe to heel, and the fluid returns from the borehole flow through a screen back into the assembly. After gravel packing, operators remove excess slurry from the workstring by reverse circulating down the assembly to carry the excess slurry uphole through the workstring. Closures on the assembly prevent the reverse circulation from communicating through the screens to the borehole annulus. Additionally, flow valves can be used on the flow ports to selectively open and close them.Type: ApplicationFiled: May 20, 2014Publication date: September 11, 2014Applicant: WEATHERFORD/LAMB, INC.Inventors: John P. Broussard, Christopher A. Hall
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Publication number: 20140238657Abstract: A gravel pack apparatus for a wellbore has a shunt tube disposed along the apparatus near a wellscreen. The shunt tube is typically composed of stainless steel and has an internal passage for conducting slurry. Along its length, the tube has flow ports for passing the conducted slurry into the wellbore. The exit ports can use erosion inserts composed of erodible material, barrier inserts having breakable barriers, flow nozzles with external sheaths or caps, erosion-resistant bushings disposed on the flow nozzles, etc. The tube can also include a tube body having the exit ports and flow nozzles integrally formed thereon. The tube body can couple end-to-end with sections of shunt tube.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Applicant: Weatherford/Lamb, Inc.Inventors: John S. Sladic, Stephen McNamee, John Broussard, Christopher A. Hall, Floyd R. Simonds
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Publication number: 20140116693Abstract: A device and method allows a bore valve in the washpipe and in certain instances a port valve or sliding sleeve to open or close upon command from the surface so that gravel slurry may be placed in a wellbore.Type: ApplicationFiled: January 10, 2013Publication date: May 1, 2014Applicant: WEATHERFORD/LAMB, INC.Inventors: John P. Broussard, Christopher A. Hall, Ronald van Petegem