Patents by Inventor Nicolas Droger
Nicolas Droger 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: 11130899Abstract: Methods for cementing a subterranean well and maintaining zonal isolation involve preparing a cement slurry that contains water, an inorganic cement and an expanding agent. The slurry is placed in the annular region between casing and the formation or between two casing strings. After the cement sets, the expanding agent reacts and causes the set cement to be in a state of compression within the annular region. The casing dimensions may fluctuate in response to a temperature change, a pressure change, a mechanical disturbance resulting from a well intervention, or mud contamination or a combination thereof. The expanding agent may further react and maintain a state of compression within the annular region. The state of compression in the annular region may be monitored by acoustic impedance measurements.Type: GrantFiled: June 16, 2015Date of Patent: September 28, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Mickael Allouche, Sebastien Catheline, Alice Chougnet-Sirapian, Nicolas Droger
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Patent number: 11091686Abstract: Well treatment compositions comprise water, a lipophilic anionic surfactant, a hydrophilic non-ionic surfactant, a second non-ionic surfactant, a water-solubilizing solvent, a water-immiscible solvent and a lipophilic non-ionic surfactant. Optionally, a second solvent may be incorporated. When added to spacer fluids, chemical washes or both, the compositions promote the removal of non-aqueous drilling fluids from casing surfaces. Additionally, the treated casing surfaces are water wet, thereby promoting optimal bonding to cement.Type: GrantFiled: January 7, 2016Date of Patent: August 17, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Quentin Barral, Nicolas Droger, Slaheddine Kefi, Loic Regnault De La Mothe
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Patent number: 10941329Abstract: Methods to prepare a well cementing slurry include coating particles comprising an expanding agent with a component selected from the group consisting of a phenolic resin, a silica, a calcination product of a polysiloxane oil, and a combination thereof; and combining the coated particles with mix water and hydraulic cement to form a cement slurry for cementing a well.Type: GrantFiled: April 10, 2017Date of Patent: March 9, 2021Assignee: Schlumberger Technology CorporationInventors: Nicolas Droger, Mickael Allouche, Katia Dennis, Sylwia Komocki
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Publication number: 20210053874Abstract: A delayed-expansion cement mixture or slurry of hydraulic cement contains an expanding agent having hydrophobically modified surfaces with a hydrophobic and/or self-assembling film. A method to delay expansion of cement involves treating the expanding agent with a self-assembling film precursor compound, making the slurry with cement and water, and setting and expanding the cement. A cementing method places the mixture or slurry downhole where it is hardened and expanded.Type: ApplicationFiled: February 11, 2016Publication date: February 25, 2021Inventor: Nicolas DROGER
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Patent number: 10526523Abstract: Pre-stressed cementing methods involve preparing a cement slurry containing water, inorganic cement, and capsules of an expanding agent. The slurry is placed in an annular region in the well and hardened. Expansion of the set cement is delayed. Water infiltration activates the expanding agent to rupture the capsules and release the expanding agent. The expanding agent reacts to expand the set cement to a state of compression within the annular region. The state of compression can be maintained during changes in casing dimensions from temperature or pressure, mechanical disturbance, or mud contamination. The state of compression in the annular region may be monitored by acoustic impedance measurements.Type: GrantFiled: February 11, 2016Date of Patent: January 7, 2020Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nicolas Droger, Mickael Allouche
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Publication number: 20190161669Abstract: Methods to prepare a well cementing slurry include coating particles comprising an expanding agent with a component selected from the group consisting of a phenolic resin, a silica, a calcination product of a polysiloxane oil, and a combination thereof; and combining the coated particles with mix water and hydraulic cement to form a cement slurry for cementing a well.Type: ApplicationFiled: April 10, 2017Publication date: May 30, 2019Inventors: Nicolas DROGER, Mickael ALLOUCHE, Katia DENNIS, Sylwia KOMOCKI
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Publication number: 20190048250Abstract: Pre-stressed cementing methods involve preparing a cement slurry containing water, inorganic cement, and capsules of an expanding agent. The slurry is placed in an annular region in the well and hardened. Expansion of the set cement is delayed. Water infiltration activates the expanding agent to rupture the capsules and release the expanding agent. The expanding agent reacts to expand the set cement to a state of compression within the annular region. The state of compression can be maintained during changes in casing dimensions from temperature or pressure, mechanical disturbance, or mud contamination. The state of compression in the annular region may be monitored by acoustic impedance measurements.Type: ApplicationFiled: February 11, 2016Publication date: February 14, 2019Inventors: Nicolas DROGER, Mickael ALLOUCHE
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Publication number: 20180010032Abstract: Well treatment compositions comprise water, a lipophilic anionic surfactant, a hydrophilic non-ionic surfactant, a second non-ionic surfactant, a water-solubilizing solvent, a water-immiscible solvent and a lipophilic non-ionic surfactant. Optionally, a second solvent may be incorporated. When added to spacer fluids, chemical washes or both, the compositions promote the removal of non-aqueous drilling fluids from casing surfaces. Additionally, the treated casing surfaces are water wet, thereby promoting optimal bonding to cement.Type: ApplicationFiled: January 7, 2016Publication date: January 11, 2018Inventors: Quentin BARRAL, Nicolas DROGER, Slaheddine KEFI, Loic REGNAULT DE LA MOTHE
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Publication number: 20170121587Abstract: Methods for cementing a subterranean well and maintaining zonal isolation involve preparing a cement slurry that contains water, an inorganic cement and an expanding agent. The slurry is placed in the annular region between casing and the formation or between two casing strings. After the cement sets, the expanding agent reacts and causes the set cement to be in a state of compression within the annular region. The casing dimensions may fluctuate in response to a temperature change, a pressure change, a mechanical disturbance resulting from a well intervention, or mud contamination or a combination thereof. The expanding agent may further react and maintain a state of compression within the annular region. The state of compression in the annular region may be monitored by acoustic impedance measurements.Type: ApplicationFiled: June 16, 2015Publication date: May 4, 2017Inventors: Mickael Allouche, Sebastien Catheline, Alice Chougnet - Sirapian, Nicolas Droger
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Publication number: 20150361322Abstract: Fluid compositions comprising rigid fibers, flexible fibers and solid plugging particles may effectively control the egress of fluids from a subterranean wellbore into vugs, cracks and fissures in the subterranean formation rock. The compositions may be effective in drilling fluids, cement slurries, gravel packing fluids, acidizing fluids and hydraulic fracturing fluids. Such fluids may also have utility for providing fluid diversion during well stimulation treatments, allowing the stimulation fluid to avoid higher permeability regions in the formation rock and treat the lower permeability regions, thereby improving stimulation results.Type: ApplicationFiled: January 29, 2013Publication date: December 17, 2015Inventors: Diankui Fu, Olga Alexandrovna Minikh, Nicolas Droger, Demid Valeryevich Demidov
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Publication number: 20150344772Abstract: A method to treat a subterranean formation penetrated by a wellbore, comprising: providing a treatment slurry comprising a carrying fluid, a solid particulate, an agglomerant and an agglomerant aid; injecting the treatment slurry into a fracture to form a mixture of the solid particulate and the agglomerant; and transforming the mixture into areas that are rich in solid particulate and areas that are substantially free of solid particulate. Also disclosed are a composition comprised of the carrying fluid, solid particulate, agglomerant and agglomerant aid, as well as a method of designing a well treatment therewith and a system to form conductive channels in a fracture.Type: ApplicationFiled: May 30, 2014Publication date: December 3, 2015Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nicolas Droger, Irina Alexandrovna Lomovskaya, Diankui Fu
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Publication number: 20130228336Abstract: Methods for controlling fluid flow through one or more pathways in one or more rock formations penetrated by a borehole in a subterranean well, comprise injecting into or adjacent to the formation a treatment fluid comprising at least one viscoelastic surfactant; fibers, or a mixture of fibers and particles; and one or more flocculation initiators. Flocculation of the mixture produces fibrous masses that migrate to formation-rock openings such as pores, cracks, fissures and vugs. As a result, the fibrous masses are useful for curing lost circulation, providing fluid-loss control and as diverting agents.Type: ApplicationFiled: November 12, 2010Publication date: September 5, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nicolas Droger, Diankui Fu
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Patent number: 8372787Abstract: A composition for wellbore consolidation comprises fibers having a core formed from a material that is electrically and/or magnetically susceptible, and a polymeric coating. When the composition is placed in a wellbore in a zone to be consolidated and an electric current or magnetic field is applied, the fibers bond together by melting or setting of the polymeric coating.Type: GrantFiled: June 11, 2009Date of Patent: February 12, 2013Assignee: Schlumberger Technology CorporationInventor: Nicolas Droger
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Publication number: 20120329683Abstract: A method for treating a subterranean formation penetrated by a wellbore is carried out introducing a treatment fluid into the formation through the wellbore wherein the formation has a formation temperature of at least 70° C. A composition for such treatment is also provided. The composition and treatment fluid for the method is formed from water and an amount of fibers formed from high temperature polymers of at least one of a polyester, polyamide, polyurethane, polyurea polymers, and copolymers of these. Each of said high temperature polymers is characterized by the property of not substantially degrading in water at a pH of from 5 to 9 at temperatures below 80° C. A fiber degrading accelerant that facilitates degrading of the fibers at the formation temperature is also included in the treatment fluid.Type: ApplicationFiled: June 23, 2011Publication date: December 27, 2012Inventors: Nicolas Droger, Vladimir Sergeevich Bugrin, Diankui Fu, Sergey Mihailovich Makarychev-Mikhailov, Vadim Kamil'evich Khlestkin
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Patent number: 8215393Abstract: The invention discloses a method of creating a polymerized composition in a well bore: providing a polymerizable composition made of a polymerization initiator and a monomer polymerizable by frontal polymerization; introducing the polymerizable composition into the wellbore; exposing the polymerizable composition to a trigger to activate the frontal polymerization; and creating the polymerized composition.Type: GrantFiled: October 6, 2009Date of Patent: July 10, 2012Assignee: Schlumberger Technology CorporationInventors: Bruce A. MacKay, Philip F. Sullivan, Nicolas Droger, Ralph M. D'Angelo, Douglas E. Miller
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Publication number: 20110079389Abstract: The invention discloses a method of creating a polymerized composition in a well bore: providing a polymerizable composition made of a polymerization initiator and a monomer polymerizable by frontal polymerization; introducing the polymerizable composition into the wellbore; exposing the polymerizable composition to a trigger to activate the frontal polymerization; and creating the polymerized composition.Type: ApplicationFiled: October 6, 2009Publication date: April 7, 2011Inventors: Bruce A. MacKay, Philip F. Sullivan, Nicolas Droger, Ralph M. D'Angelo, Douglas E. Miller
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Publication number: 20090314488Abstract: A composition for wellbore consolidation, comprising fibres having a core formed from a material that is electrically and/or magnetically susceptible, and a polymeric coating, characterised in that when the composition is placed in a wellbore in a zone to be consolidated and an electric current or magnetic field is applied, the fibres bond together by melting or setting of the polymeric coating.Type: ApplicationFiled: June 11, 2009Publication date: December 24, 2009Inventor: Nicolas Droger
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Patent number: 7622526Abstract: The invention relates to a thermoset plastic material, comprising a three-dimensional matrix containing sulphur atoms and at least one anti-plasticizing additive which is unreactive toward said matrix.Type: GrantFiled: September 29, 2004Date of Patent: November 24, 2009Assignee: Essilor InternationalInventors: Nicolas Droger, Jean-Louis Halary, Gilles Richard, Martin Rickwood
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Publication number: 20060270771Abstract: The invention relates to a thermoset plastic material, comprising a three-dimensional matrix containing sulphur atoms and at least one anti-plasticizing additive which is unreactive toward said matrix.Type: ApplicationFiled: September 29, 2004Publication date: November 30, 2006Inventors: Nicolas Droger, Jean-Louis Halary, Gilles Richard, Martin Rickwood