Patents by Inventor Don Williamson
Don Williamson 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: 9371479Abstract: A method for treating a subterranean formation penetrated by a wellbore, the method including the introduction of a well treatment fluid containing at least an encapsulated biocide. Once the encapsulated biocide is introduced and after a predetermined period of time, a biocide is released from an encapsulation material and treats the wellbore and the subterranean formation.Type: GrantFiled: March 15, 2012Date of Patent: June 21, 2016Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Andrey Mirakyan, Richard D. Hutchins, Don Williamson, Eric Clum
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Patent number: 9181984Abstract: A hub-driveshaft assembly comprises a hub and driveshaft with a flat portion having a width. The hub comprises a body having an axial bore therethrough, a set screw hole extending radially through a wall of the body and communicating with the axial bore, and an alignment feature positioned near an entrance to the axial bore, wherein the alignment feature substantially aligns the flat portion of the driveshaft with the set screw hole when the driveshaft is inserted into the axial bore. In another embodiment, the hub comprises an alignment feature to promote proper alignment of the driveshaft with respect to the hub when the driveshaft is inserted into the axial bore, wherein the alignment feature is eliminated under load. In yet another embodiment, the hub comprises an alignment feature that flattens in response to loading from the driveshaft.Type: GrantFiled: January 31, 2008Date of Patent: November 10, 2015Assignee: Trane International Inc.Inventors: Eli Beard, Ken Monroe, Don Williamson, Walter Freeman
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Patent number: 9097077Abstract: A method for delivering a chemical composition downhole into a wellbore includes forming a cylindrical body including a treatment chemical, where the cylindrical body includes a flow channel therethrough. The method further includes positioning the cylindrical body into a fluid conduit of a wellbore, and flowing a release fluid through the flow channel to release at least part of the treatment chemical into the release fluid. The release fluid causes the release of the treatment chemical by dissolving the chemical, and/or by removing a coating on the chemical through dissolution, response to pH adjustment, and/or response to an abrasive material in the release fluid. Examples of a treatment chemical include a cross-linker, breaker, fluid loss pill agent, and an encapsulated chemical.Type: GrantFiled: October 30, 2009Date of Patent: August 4, 2015Assignee: Schlumberger Technology CorporationInventor: Don Williamson
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Patent number: 8833452Abstract: A method includes treating a first formation intersecting a wellbore, preparing a diversion fluid including an inactivated viscosifier and an inactivated thinning agent, and positioning an amount of the diversion fluid to isolate the first formation. An activator is then delivered to the diversion fluid, thereby activating the inactivated viscosifier and triggering a thinning agent activation process.Type: GrantFiled: December 16, 2010Date of Patent: September 16, 2014Assignee: Schlumberger Technology CorporationInventor: Don Williamson
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Patent number: 8646530Abstract: A method includes treating a first formation intersecting a wellbore, preparing a diversion fluid including an inactivated viscosifier and an inactivated thinning agent, and positioning an amount of the diversion fluid to isolate the first formation. An activator is then delivered to the diversion fluid, thereby activating the inactivated viscosifier and triggering a thinning agent activation process.Type: GrantFiled: December 21, 2009Date of Patent: February 11, 2014Assignee: Schlumberger Technology CorporationInventor: Don Williamson
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Patent number: 8627889Abstract: A method of fracturing a subterranean formation while drilling a well includes the steps of preparing a fluid useful for drilling a wellbore into the formation; drilling the wellbore into the formation with the fluid; acidizing the fluid such that the acid soluble additive is degraded; and fracturing the formation with the fluid in the wellbore to create a channel in the formation.Type: GrantFiled: September 27, 2007Date of Patent: January 14, 2014Assignee: Schlumberger Technology CorporationInventors: Don Williamson, Philip F. Sullivan, Marie Noelle Dessinges
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Publication number: 20130277047Abstract: A technique utilizes micro-tubing to facilitate performance of a well treatment in which the micro-tubing is deployed for cooperation with a larger tubing, such as a coiled tubing positioned in wellbore. The micro-tubing is used to deliver a separated chemical downhole to modify a property of a treatment fluid used in performing a desired well treatment operation at a desired treatment region along the wellbore. A variety of additional components may be combined with the micro-tubing to further facilitate the treatment application.Type: ApplicationFiled: September 15, 2011Publication date: October 24, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Yan P. Kuhn de Chizelle, Mathew M. Samuel, Douglas Pipchuk, Don Williamson, Andrey Mirakyan, Hemant K.J. Ladva, Richard D. Hutchins
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Publication number: 20120285693Abstract: Described is a method for treating a subterranean formation penetrated by a wellbore, the method including the introduction of a well treatment fluid containing at least an encapsulated biocide. Once the encapsulated biocide is introduced and after a predetermined period of time, a biocide is released from an encapsulation material and treats the wellbore and the subterranean formation.Type: ApplicationFiled: March 15, 2012Publication date: November 15, 2012Inventors: Andrey Mirakyan, Richard D. Hutchins, Don Williamson, Eric Clum
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Publication number: 20120273208Abstract: A method includes treating a first formation intersecting a wellbore, preparing a diversion fluid including an inactivated viscosifier and an inactivated thinning agent, and positioning an amount of the diversion fluid to isolate the first formation. The method further includes delivering an activator to the diversion fluid, thereby activating the inactivated viscosifier and triggering a thinning agent activation process. The method further includes treating a second formation intersecting the wellbore. The method further includes providing a residence time until the thinning agent activation process completes and the thinning agent breaks the viscosified diversion fluid. The method further includes flowing fluid back from the first formation and the second formation.Type: ApplicationFiled: December 16, 2010Publication date: November 1, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Don Williamson
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Publication number: 20120152544Abstract: Disclosed herein is a well treatment fluid comprising an aqueous solution comprising greater than or equal to about 1 wt % boron, at least 5 wt % of a co-solvent, and greater than or equal to about 5 wt % sodium hydroxide, potassium hydroxide, or a combination thereof, wherein the co-solvent comprises glycerol, ethylene glycol, propylene glycol, or a combination thereof. Methods of using the well treatment fluid are also disclosed.Type: ApplicationFiled: December 7, 2011Publication date: June 21, 2012Inventors: Michael D. Parris, Li Jiang, Don Williamson
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Patent number: 7971644Abstract: A system includes a hydraulic fracturing fluid including a polymeric constituent and an additive having particles including poly-vinyl acetate in an amount sufficient to control fluid loss. The system includes a formation of interest having a downhole temperature, and the particles including poly-vinyl acetate have a size and/or shape such that the poly-vinyl acetate hydrolyses at the downhole temperature. The particles may have a size and/or shape such that the particles are deformable at the downhole temperature. The poly-vinyl acetate in the particles may be a part of the particle substrate, a coating on the particles, and/or the entire particle may be poly-vinyl acetate. The poly-vinyl acetate may be included in any portion of the hydraulic fracturing fluid, or only the portion of the hydraulic fracturing fluid that is not proppant laden.Type: GrantFiled: January 20, 2009Date of Patent: July 5, 2011Assignee: Schlumberger Technology CorporationInventors: Hemant K. Ladva, Syed Ali, Mohan K. R. Panga, Richard D. Hutchins, Don Williamson
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Publication number: 20110146987Abstract: A method includes treating a first formation intersecting a wellbore, preparing a diversion fluid including an inactivated viscosifier and an inactivated thinning agent, and positioning an amount of the diversion fluid to isolate the first formation. The method further includes delivering an activator to the diversion fluid, thereby activating the inactivated viscosifier and triggering a thinning agent activation process. The method further includes treating a second formation intersecting the wellbore. The method further includes providing a residence time until the thinning agent activation process completes and the thinning agent breaks the viscosified diversion fluid. The method further includes flowing fluid back from the first formation and the second formation.Type: ApplicationFiled: December 21, 2009Publication date: June 23, 2011Inventor: Don Williamson
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Publication number: 20110100634Abstract: A method for delivering a chemical composition downhole into a wellbore includes forming a cylindrical body including a treatment chemical, where the cylindrical body includes a flow channel therethrough. The method further includes positioning the cylindrical body into a fluid conduit of a wellbore, and flowing a release fluid through the flow channel to release at least part of the treatment chemical into the release fluid. The release fluid causes the release of the treatment chemical by dissolving the chemical, and/or by removing a coating on the chemical through dissolution, response to pH adjustment, and/or response to an abrasive material in the release fluid. Examples of a treatment chemical include a cross-linker, breaker, fluid loss pill agent, and an encapsulated chemical.Type: ApplicationFiled: October 30, 2009Publication date: May 5, 2011Inventor: Don Williamson
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Publication number: 20110036582Abstract: Embodiments of this invention relate to an apparatus and a method for treating a subterranean formation permeated by a wellbore including forming a fluid comprising a reverse emulsion and a degradable material, introducing the fluid into a wellbore, and allowing the degradable material to degrade. Embodiments of this invention relate to an apparatus and a method for treating a subterranean formation permeated by a wellbore including forming a fluid comprising a reverse emulsion and a fluid loss additive, introducing the fluid into a wellbore, and allowing the fluid loss additive to degrade.Type: ApplicationFiled: August 14, 2009Publication date: February 17, 2011Inventors: Hemant K. Ladva, Syed Ali, Don Williamson, Mathew M. Samuel
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Patent number: 7806182Abstract: A subterranean formation stimulation method utilizes a treatment fluid comprising residual drilling fluid injected into the formation, and producing the stimulated formation. In one embodiment, a tight gas formation is fractured and the fracture has a higher conductivity than the formation.Type: GrantFiled: October 17, 2008Date of Patent: October 5, 2010Assignee: Schlumberger Technology CorporationInventors: George Waters, Paul R. Howard, Don Williamson, John W. Still
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Publication number: 20100243242Abstract: A method and apparatus for processing a subterranean formation comprising stimulating and fracturing a subterranean formation, and drilling the subterranean formation wherein the drilling and fracturing occurs without removing equipment for drilling from the formation. A method and apparatus for drilling and fracturing a subterranean formation, comprising a drill string assembly and a hydraulic fracturing system, wherein the drill string and fracturing system are in communication with a wellbore and wherein the drill string and a fracture formed by the hydraulic fracturing system are less than about 1000 feet apart. A method and apparatus for processing a subterranean formation comprising fracturing a subterranean formation using a hydraulic fracturing system and drilling the subterranean formation using a drill string assembly wherein the drilling and fracturing occurs without removing the drill string from the formation, and wherein the fracturing occurs via ports in the drill string assembly.Type: ApplicationFiled: March 16, 2010Publication date: September 30, 2010Inventors: Curtis L. Boney, Marie Noelle Dessinges, Bruno Drochon, Don Williamson, Philip F. Sullivan, Francois M. Auzerais, John W. Still, Gregory Kubala, Bruce A. MacKay, Ryan Hartman, Austin Boyd, Rod Shampine
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Patent number: 7779915Abstract: Methods for treating a formation penetrated by a wellbore which improves fluid loss control during treatment. In some aspects, the treatments include preparing an aqueous fluid including one or more water inert degradable polymers and an optional viscosifier, injecting the aqueous fluid into the wellbore at a pressure equal to or greater than the formation's fracture initiation pressure, and thereafter injecting into the wellbore a proppant laden fluid at a pressure equal to or greater than the formation's fracture initiation pressure. The water inert degradable polymer may be a polymer such as an emulsion polymer or a latex polymer. Some methods of the invention use a fluid which may have a normalized leak off coefficient (Cw/sqrt(K)) equal to or less than about 0.0022, 0.0014, or 0.0010. A conventional fluid loss additive may or may not be used in conjunction with the treatment fluid and/or the proppant laden fluid. The water inert degradable polymer may or may not substantially enter formation pores.Type: GrantFiled: June 13, 2008Date of Patent: August 24, 2010Assignee: Schlumberger Technology CorporationInventors: Richard D. Hutchins, Hemant K. Ladva, Don Williamson, Sylvie Daniel
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Publication number: 20100181065Abstract: A system includes a hydraulic fracturing fluid including a polymeric constituent and an additive having particles including poly-vinyl acetate in an amount sufficient to control fluid loss. The system includes a formation of interest having a downhole temperature, and the particles including poly-vinyl acetate have a size and/or shape such that the poly-vinyl acetate hydrolyses at the downhole temperature. The particles may have a size and/or shape such that the particles are deformable at the downhole temperature. The poly-vinyl acetate in the particles may be a part of the particle substrate, a coating on the particles, and/or the entire particle may be poly-vinyl acetate. The poly-vinyl acetate may be included in any portion of the hydraulic fracturing fluid, or only the portion of the hydraulic fracturing fluid that is not proppant laden.Type: ApplicationFiled: January 20, 2009Publication date: July 22, 2010Inventors: Hemant K. Ladva, Syed Ali, Mohan K.R. Panga, Richard D. Hutchins, Don Williamson
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Patent number: 7703521Abstract: Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation.Type: GrantFiled: January 14, 2009Date of Patent: April 27, 2010Assignee: Schlumberger Technology CorporationInventors: Philip F. Sullivan, Gary John Tustin, Don Williamson, Hemant K. Ladva
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Publication number: 20090221453Abstract: A treatment fluid composition for treating a subterranean formation is formed from an aqueous fluid, a hydratable polymer and a polymer breaking system. The polymer breaking system includes an oxidizing breaking agent and an activator capable of providing a bisulfite ion source. A method of treating a subterranean formation may also be performed by forming a treatment fluid comprising an aqueous hydrated polymer solution and a polymer breaking system. The polymer breaking system includes a breaking agent of an oxidizer and an activator capable of providing a bisulfite ion source. The treatment fluid is introduced into the formation.Type: ApplicationFiled: February 2, 2009Publication date: September 3, 2009Inventors: Sumitra Mukhopadhyay, Don Williamson, Richard D. Hutchins