Patents by Inventor John Gordon Misselbrook
John Gordon Misselbrook 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: 8899330Abstract: A shear pig assembly and method of use for severing a linear conductor within a surrounding tubular. A shear pig assembly includes a main body and a nose that radially surround the linear conductor within the tubular. The main body and nose are axially moveable with respect to each other to cause a shear plug to move radially within a shearing chamber, thereby severing the linear conductor.Type: GrantFiled: June 29, 2012Date of Patent: December 2, 2014Assignee: Baker Hughes IncorporatedInventor: John Gordon Misselbrook
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Publication number: 20140000895Abstract: A shear pig assembly and method of use for severing a linear conductor within a surrounding tubular. A shear pig assembly includes a main body and a nose that radially surround the linear conductor within the tubular. The main body and nose are axially moveable with respect to each other to cause a shear plug to move radially within a shearing chamber, thereby severing the linear conductor.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: Baker Hughes IncorporatedInventor: John Gordon Misselbrook
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Patent number: 8205672Abstract: A bottom hole assembly connected to coiled tubing to create an acid tunnel in a wellbore formation. High pressure acid is pumped down the coiled tubing and out a nozzle located at the end of the bottom hole assembly. The bottom hole assembly includes a first reversible knuckle joint and a second reversible knuckle joint to properly position the nozzle against the wellbore and to allow the assembly to adjust its angle as it initiates and moves through the lateral tunnel. The two reversible knuckle joints increases the radius of curvature of the bottom hole assembly while providing a sufficient attack angle for the nozzle against the wellbore. The two knuckle joints may be adjusted in response to loads applied on the assembly as the assembly moves through the lateral tunnel.Type: GrantFiled: October 28, 2008Date of Patent: June 26, 2012Assignee: Baker Hughes IncorporatedInventors: John Gordon Misselbrook, Alexander Raphael Crabtree, Lance N. Portman
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Patent number: 8127851Abstract: A system used to remove multiple isolation plugs from a wellbore. The system is efficient in fluidizing and circulating proppant located below an upper plug resting on top of proppant settled above a lower plug. The system uses a central port of the mill that is in communication with coiled tubing to fluidize and circulate the proppant around the perimeter of the upper plug. Once the proppant has been circulated from underneath the upper plug, the upper plug may mate and rotationally lock with a lower plug set within the wellbore. Upon locking, the system is able to rapidly mill out the upper plug and the lower plug until the lower plug is no longer set within the wellbore. The system provides for the rapid removal of multiple plugs positioned within a wellbore where an amount of proppant is present between the plugs.Type: GrantFiled: January 17, 2008Date of Patent: March 6, 2012Assignee: Baker Hughes IncorporatedInventor: John Gordon Misselbrook
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Patent number: 7878247Abstract: Methods for cleaning out horizontal wellbores using coiled tubing are provided for use during downhole operations. A coiled tubing having a bottom hole assembly is deployed into a horizontal wellbore. Fluid is circulated down the annulus of the wellbore and up the bottom hole assembly while the bottom hole assembly is moved upward at a selected rate and distance. This method may be used to remove downhole solids, such as formation sands and proppant.Type: GrantFiled: January 8, 2009Date of Patent: February 1, 2011Assignee: Baker Hughes IncorporatedInventors: John Gordon Misselbrook, William Arthur Hutton Aitken, Jeff Li
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Patent number: 7798227Abstract: A production tubing comprising a liner is placed downhole in a wellbore. A fluid pill containing proppant is squeezed into the annulus between the formation and liner, thereby packing the proppant into the annulus, effectively isolating the annulus. The packed proppant is permeable to liquids but impermeable to fracturing proppants. After isolation of the annulus, the wellbore may be perforated using a resettable perforation assembly. Once perforating is complete, the wellbore is fractured. The presence of the packed proppant in the annulus generates resistance to the flow of fracturing fluid along the annulus, forcing the fracture to propagate down the perforation tunnels, while also allowing subsequent production fluids to be produced along the annulus.Type: GrantFiled: December 22, 2008Date of Patent: September 21, 2010Assignee: BJ Services Company LLCInventor: John Gordon Misselbrook
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Publication number: 20100170676Abstract: Methods for cleaning out horizontal wellbores using coiled tubing are provided for use during downhole operations. A coiled tubing having a bottom hole assembly is deployed into a horizontal wellbore. Fluid is circulated down the annulus of the wellbore and up the bottom hole assembly while the bottom hole assembly is moved upward at a selected rate and distance. This method may be used to remove downhole solids, such as formation sands and proppant.Type: ApplicationFiled: January 8, 2009Publication date: July 8, 2010Applicant: BJ Services CompanyInventors: John Gordon Misselbrook, William Arthur Hutton Aitken, Jeff Li
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Publication number: 20100155065Abstract: A production tubing comprising a liner is placed downhole in a wellbore. A fluid pill containing proppant is squeezed into the annulus between the formation and liner, thereby packing the proppant into the annulus, effectively isolating the annulus. The packed proppant is permeable to liquids but impermeable to fracturing proppants. After isolation of the annulus, the wellbore may be perforated using a resettable perforation assembly. Once perforating is complete, the wellbore is fractured. The presence of the packed proppant in the annulus generates resistance to the flow of fracturing fluid along the annulus, forcing the fracture to propagate down the perforation tunnels, while also allowing subsequent production fluids to be produced along the annulus.Type: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Applicant: BJ Services CompanyInventor: John Gordon Misselbrook
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Patent number: 7735556Abstract: An improved method for building a plug in a horizontal wellbore using a fluid pill pumped into the wellbore at the end of a fracturing treatment. The fluid pill includes a high concentration of an ultra lightweight proppant, such as a neutrally buoyant proppant or an ultra lightweight proppant mixture. The fluid pill is pumped down the wellbore until it almost reaches fractures within a zone of interest. The pumping is then ceased or reduced, allowing the fractures to partially close. The ultra lightweight proppant remains suspended within the fluid pill while stationary. The pumping is then resumed at a very slow rate or as a short pump burst, thus causing the proppant in the fluid pill to bridge off until a bridge plug is formed.Type: GrantFiled: March 14, 2008Date of Patent: June 15, 2010Assignee: BJ Services CompanyInventors: John Gordon Misselbrook, Russell Meyer, Darcy A. Schultz, Trevor Gordon Hayes, Quentin Shane Stang
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Publication number: 20090114449Abstract: A bottom hole assembly connected to coiled tubing to create an acid tunnel in a wellbore formation. High pressure acid is pumped down the coiled tubing and out a nozzle located at the end of the bottom hole assembly. The bottom hole assembly includes a first reversible knuckle joint and a second reversible knuckle joint to properly position the nozzle against the wellbore and to allow the assembly to adjust its angle as it initiates and moves through the lateral tunnel. The two reversible knuckle joints increases the radius of curvature of the bottom hole assembly while providing a sufficient attack angle for the nozzle against the wellbore. The two knuckle joints may be adjusted in response to loads applied on the assembly as the assembly moves through the lateral tunnel.Type: ApplicationFiled: October 28, 2008Publication date: May 7, 2009Applicant: BJ Services CompanyInventors: John Gordon Misselbrook, Alexander Raphael Crabtree, Lance N. Portman
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Publication number: 20080271889Abstract: An improved method for building a plug in a horizontal wellbore using a fluid pill pumped into the wellbore at the end of a fracturing treatment. The fluid pill includes a high concentration of an ultra lightweight proppant, such as a neutrally buoyant proppant or an ultra lightweight proppant mixture. The fluid pill is pumped down the wellbore until it almost reaches fractures within a zone of interest. The pumping is then ceased or reduced, allowing the fractures to partially close. The ultra lightweight proppant remains suspended within the fluid pill while stationary. The pumping is then resumed at a very slow rate or as a short pump burst, thus causing the proppant in the fluid pill to bridge off until a bridge plug is formed.Type: ApplicationFiled: March 14, 2008Publication date: November 6, 2008Inventors: John Gordon Misselbrook, Russell Meyer, Darcy A. Schultz, Trevor Gordon Hayes, Quentin Shane Stang
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Publication number: 20080271925Abstract: A bottom hole assembly connected to coiled tubing to create an acid tunnel in a wellbore formation. High pressure acid is pumped down the coiled tubing and out a nozzle located at the end of the bottom hole assembly. The bottom hole assembly includes a first knuckle joint and a second knuckle joint to properly position the nozzle against the wellbore. The two knuckle joints increases the radius of curvature of the bottom hole assembly while providing a sufficient attack angle for the nozzle against the wellbore. The two knuckle joints also may reduce the chance that the nozzle will cam lock within the acid tunnel. The two knuckle joints may be oriented such that they bend within the same plane. The nozzle may be connected onto the end of wand having a telescoping portion. The nozzle may be adapted to form an elliptical acid tunnel.Type: ApplicationFiled: May 3, 2007Publication date: November 6, 2008Applicant: BJ Services CompanyInventors: John Gordon Misselbrook, Alexander Raphael Crabtree
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Publication number: 20080173453Abstract: A system used to remove multiple isolation plugs from a wellbore. The system is efficient in fluidizing and circulating proppant located below an upper plug resting on top of proppant settled above a lower plug. The system uses a central port of the mill that is in communication with coiled tubing to fluidize and circulate the proppant around the perimeter of the upper plug. Once the proppant has been circulated from underneath the upper plug, the upper plug may mate and rotationally lock with a lower plug set within the wellbore. Upon locking, the system is able to rapidly mill out the upper plug and the lower plug until the lower plug is no longer set within the wellbore. The system provides for the rapid removal of multiple plugs positioned within a wellbore where an amount of proppant is present between the plugs.Type: ApplicationFiled: January 17, 2008Publication date: July 24, 2008Applicant: BJ Services CompanyInventor: John Gordon Misselbrook
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Patent number: 7273108Abstract: Apparatus and methods are provided for removing sand and/or other fill material located in a wellbore ahead of a coiled tubing tractor and displacing the material behind the tractor. More particularly, the apparatus and methods of the present invention allow a coiled tubing tractor to drive forward in a wellbore by removing fill material in front of the tractor thereby allowing the wheels or traction pads of the tractor to remain in contact with the wellbore.Type: GrantFiled: November 30, 2004Date of Patent: September 25, 2007Assignee: BJ Services CompanyInventor: John Gordon Misselbrook
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Patent number: 6834722Abstract: A cyclic check valve is provided for a coiled tubing string which enables reverse circulating for a specific period when a specific combination of pumping condition and oil conditions are favorable. The check valve may be activated to prevent reverse flow up through the valve and into the coiled tubing in the event of a failure of the coiled tubing at surface. The valve may be de-activated to allow reverse circulating. The check valve includes a flapper valve which may be de-activated by shiftable sleeve locked in place by a J-slot assembly. The check valve may be cycled from the activated to de-activated position and verified by a change in pressure drop through the tool.Type: GrantFiled: February 3, 2003Date of Patent: December 28, 2004Assignee: BJ Services CompanyInventors: Lubos Vacik, John Ravensbergen, John Gordon Misselbrook
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Patent number: 6832655Abstract: A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven into the gravel pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.Type: GrantFiled: September 27, 2002Date of Patent: December 21, 2004Assignee: BJ Services CompanyInventors: John Ravensbergen, John Gordon Misselbrook, Lance Nigel Portman
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Publication number: 20040060698Abstract: A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven more completely into the gravel pack to obtain a greater coverage in the pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.Type: ApplicationFiled: September 27, 2002Publication date: April 1, 2004Applicant: BJ Services CompanyInventors: John Ravensbergen, John Gordon Misselbrook, Lance Nigel Portman
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Publication number: 20040026085Abstract: A cyclic check valve is provided for a coiled tubing string which enables reverse circulating for a specific period when a specific combination of pumping condition and oil conditions are favorable. The check valve may be activated to prevent reverse flow up through the valve and into the coiled tubing in the event of a failure of the coiled tubing at surface. The valve may be de-activated to allow reverse circulating. The check valve includes a flapper valve which may be de-activated by shiftable sleeve locked in place by a J-slot assembly. The check valve may be cycled from the activated to de-activated position and verified by a change in pressure drop through the tool.Type: ApplicationFiled: February 3, 2003Publication date: February 12, 2004Inventors: Lubos Vacik, John Ravensbergen, John Gordon Misselbrook