Patents by Inventor Erik B. Nelson
Erik B. Nelson 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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Publication number: 20130161006Abstract: A rubber pocket is described that is suitable for use on tubing, such as a packer-type seal, on casing, such as a cement-type seal, or on liners. The rubber pocket may contain cement particles, rubber particles, swellable particles, cement filled rubber particles, cement filled swellable particles, calcium oxide, magnesium oxide, magnesium sulfate, iron (III) oxide, calcium sulfoaluminate, clay, magnetic particles and/or reactants such as crosslinkers, retardants or epoxy. The particles may be bulk spheres, bulk fibers, hollow spheres, hollow fibers, etc. The rubber pocket or bladder may also be fully or partially filled with fluids such as polymer reactants. The pocket may also be empty or contain a small volume of reactants. The slurry or epoxy or other type of fluid and granular solid or injectable matter can be injected after the completion positioning downhole.Type: ApplicationFiled: December 27, 2011Publication date: June 27, 2013Inventors: AGATHE ROBISSON, FRANCOIS M. AUZERAIS, ERIK B. NELSON, JULIO GUERRERO, SUDEEP MAHESHWARI, SHERRY S. ZHU
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Patent number: 8242148Abstract: Methods of treating depression, binge eating disorder, narcolepsy, excessive daytime sleepiness, substance use disorders, and Prader Willi syndrome, disorders characterized at least in part by hypocortisolemia and decreased activity of the hypothalamic-pituitary-adrenal (HPA) axis, and disorders related to disturbances in circadian rhythm, comprising the step of administering an effective amount of a histamine type 3 (H3) receptor antagonist, such as betahistine or its pharmaceutically acceptable salts, or its metabolites to an individual.Type: GrantFiled: January 11, 2012Date of Patent: August 14, 2012Inventors: Erik B. Nelson, Floyd R. Sallee
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Publication number: 20120115914Abstract: Methods of treating depression, binge eating disorder, narcolepsy, excessive daytime sleepiness, substance use disorders, and Prader Willi syndrome, disorders characterized at least in part by hypocortisolemia and decreased activity of the hypothalamic-pituitary-adrenal (HPA) axis, and disorders related to disturbances in circadian rhythm, comprising the step of administering an effective amount of a histamine type 3 (H3) receptor antagonist, such as betahistine or its pharmaceutically acceptable salts, or its metabolites to an individual.Type: ApplicationFiled: January 11, 2012Publication date: May 10, 2012Inventors: Erik B. Nelson, Floyd R. Sallee
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Patent number: 8119668Abstract: Methods of treating depression, binge eating disorder, narcolepsy, excessive daytime sleepiness, substance use disorders, and Prader Willi syndrome, disorders characterized at least in part by hypocortisolemia and decreased activity of the hypothalamic-pituitary-adrenal (HPA) axis, and disorders related to disturbances in circadian rhythm, comprising the step of administering an effective amount of a histamine type 3 (Bb) receptor antagonist, such as betahistine or its pharmaceutically acceptable salts, or its metabolites to an individual.Type: GrantFiled: December 26, 2006Date of Patent: February 21, 2012Inventors: Erik B. Nelson, Floyd R. Sallee
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Patent number: 8066073Abstract: 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 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 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 polymer may or may not substantially enter formation pores.Type: GrantFiled: May 27, 2009Date of Patent: November 29, 2011Assignee: Schlumberger Technology CorporationInventors: Richard D Hutchins, Marie Noelle Dessinges, Carlos Abad, Erik B Nelson
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Patent number: 7823642Abstract: A treatment fluid that can be used for treating a subterranean formation penetrated by a wellbore is prepared from a primary treatment fluid component and an emulsion component mixed with the primary treatment fluid component. The emulsion component has an oil phase and an aqueous phase. The emulsion component comprising a source of insoluble silica particles and a source of calcium hydroxide, wherein the source of calcium hydroxide is present in the oil phase, and the source of insoluble silica particles are contained in the aqueous phase. The method is carried out by contacting at least a portion of the formation with the treatment fluid.Type: GrantFiled: September 17, 2008Date of Patent: November 2, 2010Assignee: Schlumberger Technology CorporationInventors: Balkrishna Gadiyar, Erik B. Nelson, Juan-Carlos Santamaria, Brent Busby, Philip F. Sullivan
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Publication number: 20090298892Abstract: Methods of treating depression, binge eating disorder, narcolepsy, excessive daytime sleepiness, substance use disorders, and Prader Willi syndrome, disorders characterized at least in part by hypocortisolemia and decreased activity of the hypothalamic-pituitary-adrenal (HPA) axis, and disorders related to disturbances in circadian rhythm, comprising the step of administering an effective amount of a histamine type 3 (Bb) receptor antagonist, such as betahistine or its pharmaceutically acceptable salts, or its metabolites to an individual.Type: ApplicationFiled: December 26, 2006Publication date: December 3, 2009Inventors: Erik B. Nelson, Floyd R. Sallee
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Publication number: 20090111718Abstract: A treatment fluid that can be used for treating a subterranean formation penetrated by a wellbore is prepared from a primary treatment fluid component and an emulsion component mixed with the primary treatment fluid component. The emulsion component has an oil phase and an aqueous phase. The emulsion component comprising a source of insoluble silica particles and a source of calcium hydroxide, wherein the source of calcium hydroxide is present in the oil phase, and the source of insoluble silica particles are contained in the aqueous phase. The method is carried out by contacting at least a portion of the formation with the treatment fluid.Type: ApplicationFiled: September 17, 2008Publication date: April 30, 2009Inventors: Balkrishna Gadiyar, Erik B. Nelson, Juan-Carlos Santamaria, Brent Busby, Philip F. Sullivan
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Patent number: 7111683Abstract: A formation consolidation process is described which comprises injecting into an unconsolidated or poorly consolidated subterranean formation penetrated by a wellbore an aqueous pumpable system comprising an insoluble silica source (e.g., colloidal silica, silica fume or fumed silica) and a source of calcium hydroxide (e.g., aqueous solutions of calcium chloride and sodium hydroxide). The aqueous system may contain a nucleation inhibitor. The components of the aqueous system react to produce a calcium silicate hydrate gel (C-S-H gel) having cementitious properties within the pores of the formation. After the C-S-H gel sets and hardens, the consolidated formation has a high compressive strength (e.g., 500 psi (about 3.5 MPa) or more). The technique can be performed as a remedial treatment or in new completions, but it is particularly useful in workover treatments for existing wells.Type: GrantFiled: June 14, 2004Date of Patent: September 26, 2006Assignee: Schlumberger Technology CorporationInventors: Erik B. Nelson, Samuel Danican, Golchehreh Salamat
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Patent number: 6908888Abstract: Methods and compositions are disclosed for controlled addition of components that decrease the viscosity of the viscoelastic surfactant fluids or for controlled changes in the electrolyte concentration or composition of the viscoelastic surfactant fluids. One aspect of the invention relates to the use of internal breakers with a delayed activation. Another aspect of the invention relates to the use of precursors that release a breaking system such as alcohol by a process such as melting, slow dissolution, reaction with a compound present in the fluid or added to the fluid during or after the step of injecting, rupture of an encapsulating coating and de-adsorption of a breaking agent absorbed into solid particles. In another aspect of the invention, alcohols are included in a pad to reduce the low-shear viscosity and reduce the resistance to flow of the treatment fluids during a desired phase of the treatment.Type: GrantFiled: July 12, 2002Date of Patent: June 21, 2005Assignee: Schlumberger Technology CorporationInventors: Jesse C. Lee, Erik B. Nelson
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Patent number: 6881709Abstract: Methods and compositions are disclosed for controlled addition of components that decrease the viscosity of the viscoelastic surfactant fluids or for controlled changes in the electrolyte concentration or composition of the viscoelastic surfactant fluids. One aspect of the invention relates to the use of internal breakers with a delayed activation. Another aspect of the invention relates to the use of precursors that release a breaking system such as alcohol by a process such as melting, slow dissolution, reaction with a compound present in the fluid or added to the fluid during or after the step of injecting, rupture of an encapsulating coating and de-adsorption of a breaking agent absorbed into solid particles. In another aspect of the invention, alcohols are included in a pad to reduce the low-shear viscosity and reduce the resistance to flow of the treatment fluids during a desired phase of the treatment.Type: GrantFiled: April 4, 2001Date of Patent: April 19, 2005Assignee: Schlumberger Technology CorporationInventors: Erik B. Nelson, Bernhard Lungwitz, Keith Dismuke, Mathew Samuel, Golchi Salamat, Trevor Hughes, Jesse Lee, Philip Fletcher, Diankui Fu, Richard Hutchins, Michael Parris, Gary John Tustin
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Patent number: 6613720Abstract: The effect of various chemical or biological agents in well treatment fluids can be delayed by sequestering the agents in the discontinuous phase of an emulsion for a period of time, before the emulsion is destabilized by exposure to at least one of: (1) a change in temperature, (2) a change in pH, (3) a change in salinity, (4) a change in alcohol concentration, (5) a change in stabilizing surfactant concentration, (6) a change in organic ion concentration, (7) a change in destabilizing surfactant concentration, (8) a change in surfactant adsorbent material concentration, (9) an ultrasonic pulse, and (10) an electrical field. Upon exposure to the emulsion destabilizing condition, the agent sequestered in the discontinuous phase of the emulsion is released into the continuous phase of the fluid composition, where it can have its intended effect.Type: GrantFiled: October 13, 2000Date of Patent: September 2, 2003Assignee: Schlumberger Technology CorporationInventors: Jean Pierre Feraud, Michael D. Parris, Richard D. Hutchins, Stanley Bruce McConnell, Erik B. Nelson, Keith Dismuke
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Publication number: 20030019627Abstract: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing and acidizing methods useful for increasing hydrocarbon production, limiting water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of viscosifying micelles of surfactant in aqueous zones of the subterranean formation diverts fracturing fluid or acid from the aqueous zones to the hydrocarbon-bearing zones and also facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.Type: ApplicationFiled: January 17, 2002Publication date: January 30, 2003Inventors: Qi Qu, Erik B. Nelson, Dean M. Willberg, Mathew M. Samuel, Jesse C. Lee, Frank F. Chang, Roger J. Card, Palathinkara S. Vinod, J. Ernest Brown, Ronnie L. Thomas
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Publication number: 20020193257Abstract: Methods and compositions are disclosed for controlled addition of components that decrease the viscosity of the viscoelastic surfactant fluids or for controlled changes in the electrolyte concentration or composition of the viscoelastic surfactant fluids. One aspect of the invention relates to the use of internal breakers with a delayed activation. Another aspect of the invention relates to the use of precursors that release a breaking system such as alcohol by a process such as melting, slow dissolution, reaction with a compound present in the fluid or added to the fluid during or after the step of injecting, rupture of an encapsulating coating and de-adsorption of a breaking agent absorbed into solid particles. In another aspect of the invention, alcohols are included in a pad to reduce the low-shear viscosity and reduce the resistance to flow of the treatment fluids during a desired phase of the treatment.Type: ApplicationFiled: July 12, 2002Publication date: December 19, 2002Inventors: Jesse C. Lee, Erik B. Nelson
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Publication number: 20020185278Abstract: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscoelastic surfactant fluid containing wormlike micelles are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing methods useful for increasing hydrocarbon production, limiting connate water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of micelles of surfactant in aqueous zones of the subterranean formation facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.Type: ApplicationFiled: May 6, 2002Publication date: December 12, 2002Inventors: J. Ernest Brown, Roger J. Card, Erik B. Nelson
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Patent number: 6450260Abstract: Herein is described a method of consolidating a subterranean formation or repairing a gravel pack, comprising (i) providing a consolidating fluid, wherein the consolidating fluid comprises a gel component and a gel-forming agent; and (ii) injecting the consolidating fluid into the formation or gravel pack, under conditions wherein the gel component forms a flexible gel, thereby consolidating the formation.Type: GrantFiled: July 7, 2000Date of Patent: September 17, 2002Assignee: Schlumberger Technology CorporationInventors: Simon G. James, Erik B. Nelson, Frédéric J. Guinot
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Patent number: 6435277Abstract: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing and acidizing methods useful for increasing hydrocarbon production, limiting water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of viscosifying micelles of surfactant in aqueous zones of the subterranean formation diverts fracturing fluid or acid from the aqueous zones to the hydrocarbon-bearing zones and also facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.Type: GrantFiled: February 23, 1999Date of Patent: August 20, 2002Assignee: Schlumberger Technology CorporationInventors: Qi Qu, Erik B. Nelson, Dean M. Willberg, Mathew M. Samuel, Jesse C. Lee, Jr., Frank F. Chang, Roger J. Card, Palathinkara S. Vinod, J. Ernest Brown, Ronnie L. Thomas
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Patent number: 6412561Abstract: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscoelastic surfactant fluid containing wormlike micelles are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing methods useful for increasing hydrocarbon production, limiting connate water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of micelles of surfactant in aqueous zones of the subterranean formation facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.Type: GrantFiled: December 23, 1998Date of Patent: July 2, 2002Assignee: Schlumberger Technology CorporationInventors: J. Ernest Brown, Roger J. Card, Erik B. Nelson
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Publication number: 20020023752Abstract: The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing and acidizing methods useful for increasing hydrocarbon production, limiting water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of viscosifying micelles of surfactant in aqueous zones of the subterranean formation diverts fracturing fluid or acid from the aqueous zones to the hydrocarbon-bearing zones and also facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.Type: ApplicationFiled: February 23, 1999Publication date: February 28, 2002Inventors: QI QU, ERIK B. NELSON, DEAN M. WILLBERG, MATHEW M. SAMUEL, JESSE C. LEE, FRANK F. CHANG, ROGER J. CARD, PALATHINKARA S. VINOD, J. ERNEST BROWN, RONNIE L. THOMAS
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Publication number: 20020004464Abstract: Methods and compositions are disclosed for controlled addition of components that decrease the viscosity of the viscoelastic surfactant fluids or for controlled changes in the electrolyte concentration or composition of the viscoelastic surfactant fluids. One aspect of the invention relates to the use of internal breakers with a delayed activation. Another aspect of the invention relates to the use of precursors that release a breaking system such as alcohol by a process such as melting, slow dissolution, reaction with a compound present in the fluid or added to the fluid during or after the step of injecting, rupture of an encapsulating coating and de-adsorption of a breaking agent absorbed into solid particles. In another aspect of the invention, alcohols are included in a pad to reduce the low-shear viscosity and reduce the resistance to flow of the treatment fluids during a desired phase of the treatment.Type: ApplicationFiled: April 4, 2001Publication date: January 10, 2002Inventors: Erik B. Nelson, Bernhard Lungwitz, Keith Dismuke, Mathew Samuel, Golchi Salamat, Trevor Hughes, Jesse Lee, Philip Fletcher, Diankui Fu, Richard Hutchins, Michael Parris, Gary John Tustin