Patents by Inventor Yenny Christanti

Yenny Christanti 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).

  • Publication number: 20180163512
    Abstract: Methods of treating formation damage or other service induced damage in a near wellbore region of a wellbore of a subterranean formation, by treating a zone or zones in the near wellbore region, and diverting treatment fluid stages from the treated zones to untreated zone(s) with an acid precursor material and optionally also with fibers. The acid precursor material has an average particle size less than 1000 microns.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Courtney Payne, Mohan Kanaka Raju Panga, Jesse Lee, Yenny Christanti, Ziad Al-Jalal
  • Patent number: 9759052
    Abstract: A method of treating a producing well that includes the introduction of a treatment fluid to the producing well from a surface above the subterranean formation, the treatment fluid comprised of at least PPG particles to enhance the oil rate and reduce the water rate of the producing well.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: September 12, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Richard Hutchins, Syed A. Ali, Yenny Christanti, Manuel Jose Lastre Buelvas
  • Publication number: 20170044418
    Abstract: A method of treating a subterranean formation, the method includes forming a fluid comprising: a crosslinkable component and a water soluble phenolic compound that has at least a substituted hydroxyl or alkyloxy group at the ortho or meta position, or a phenolic cyclic derivative of the general formula (1). The formed fluid comprising a combination of the crosslinkable component and the phenolic compound or the phenolic cyclic derivatives of formula 1 exhibits a fluid viscosity greater than 100 cP at 100/s and 93° C. or greater for at least 30 minutes.
    Type: Application
    Filed: May 7, 2015
    Publication date: February 16, 2017
    Inventors: Wingki LEE, Sergey MAKARYCHEV-MIKHAILOV, Yenny CHRISTANTI, Syed Afaq ALI
  • Publication number: 20160369153
    Abstract: A water-free slurry may include a non-aqueous carrier fluid; a suspension agent including a mineral clay mixture; a crosslinking agent; and a hydratable polymer. A method of treating a subterranean formation may include injecting a water-free slurry into a wellbore penetrating the subterranean formation, the water-free slurry including: a non-aqueous carrier fluid; a suspension agent comprising a mineral clay mixture; a crosslinking agent; and a hydratable polymer.
    Type: Application
    Filed: June 20, 2016
    Publication date: December 22, 2016
    Inventors: Syed Afaq Ali, Arthur Milne, Emilio Jose Miquilena, Yenny Christanti
  • Patent number: 9334438
    Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: May 10, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip F. Sullivan, Gary John Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Yiyan Chen, Marie Noelle Dessinges, Paul R. Howard
  • Publication number: 20150315457
    Abstract: A composition and method for performing a viscosity reducing treatment of a subterranean formation. The composition includes a sulfobetaine surfactant. The composition and method can employ viscosity reduction of heavy crude oil in a subterranean formation.
    Type: Application
    Filed: November 21, 2013
    Publication date: November 5, 2015
    Inventors: Syed A. Ali, Arthur Milne, Emilo Jose Miquilena, Yenny Christanti
  • Publication number: 20150152317
    Abstract: A method of treating a producing well that includes the introduction of a treatment fluid to the producing well from a surface above the subterranean formation, the treatment fluid comprised of at least PPG particles to enhance the oil rate and reduce the water rate of the producing well.
    Type: Application
    Filed: December 2, 2014
    Publication date: June 4, 2015
    Inventors: Richard Hutchins, Syed A. Ali, Yenny Christanti, Manuel Jose Lastre Buelvas
  • Publication number: 20140096969
    Abstract: A method is described for treating a formation adjacent a subterranean well with a treatment fluid composition imparted with emulsion formation prevention properties. A microemulsion additive is mixed into a treatment fluid component to form a volume of a treatment fluid composition having emulsion formation prevention properties. The microemulsion additive is composed of a mixture solvent, a co-solvent, a mutual solvent, a non-emulsifier, a non-ionic surfactant, a non-ionic co-surfactant, alcohol, an emulsifying surfactant, and an aqueous fluid. The volume of the fluid composition is then injected into the subterranean well and contacts the formation, whereby the microemulsion additive in the treatment fluid volume acts to prevent emulsion formation in the formation.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 10, 2014
    Inventors: Syed Afaq Ali, Yenny Christanti
  • Patent number: 8579029
    Abstract: A method includes providing a treatment fluid that is a viscous fluid. The viscous fluid may be greater than 0.01 Pa-s, greater than 0.1 Pa-s, and/or a cross-linked polymer based fluid. The method further includes determining a fines migration composition soluble in an aqueous phase of the treatment fluid that is compatible with the treatment fluid, and that interacts to secure fines in an earth formation intersecting a wellbore within a fines reaction time. The method further includes adding an amount of the fines migration composition to the treatment fluid, and treating the earth formation with the treatment fluid. The method includes leaking off a portion of the treatment fluid into the earth formation, and providing a residence time of the leaked off portion of the treatment fluid in the earth formation, where the residence time meets or exceeds the fines reaction time.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: November 12, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Carlos Abad, Yenny Christanti, Syed Ali, Balkrishna Gadiyar, Brent Busby
  • Patent number: 8517102
    Abstract: A thickened aqueous composition is delivered to a subterranean location accessible via a wellbore by steps of i. providing a biphasic aqueous mixture comprising two aqueous solutions which, at surface temperature and pressure, are able to co-exist as separate aqueous phases in contact with each other, ii. pumping said biphasic aqueous system down the wellbore to the subterranean location, and iii. converting the biphasic mixture below ground so that its phases combine into a single aqueous phase which is more viscous than the biphasic mixture. The two phases of the aqueous biphasic mixture contain dissolved solutes which segregate between the two phases such that at least one first solute is present at a greater concentration in the first aqueous phase than in the second aqueous phase while at least one second solute is present at a greater concentration in the second aqueous phase than in the first aqueous phase.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 27, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip Sullivan, Gary Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Trevor Hughes
  • Publication number: 20110319301
    Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.
    Type: Application
    Filed: September 6, 2011
    Publication date: December 29, 2011
    Inventors: Philip F. Sullivan, Gary John Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Yiyan Chen, Marie Noelle Dessinges, Paul R. Howard
  • Patent number: 8044000
    Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: October 25, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip F. Sullivan, Gary John Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Yiyan Chen, Marie Noelle Dessinges, Paul R. Howard
  • Patent number: 8030254
    Abstract: A method includes providing a wellbore treatment fluid having a divalent brine and an amount of polymer and lowering a pH value of the treatment fluid. The method further includes retaining the treatment fluid at the lower pH value until the polymer achieves a primary hydration value. The method further includes adding a cross-linking agent and a cross-linking delay agent to the treatment fluid. The cross-linking agent includes zirconium and/or titanium, and the cross-linking delay agent is a polyol. The method further includes performing a wellbore treatment with the treatment fluid.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: October 4, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Alhad Phatak, Yenny Christanti, Carlos Abad, Balkrishna Gadiyar
  • Publication number: 20100276150
    Abstract: A thickened aqueous composition is delivered to a subterranean location accessible via a wellbore by steps of i. providing a biphasic aqueous mixture comprising two aqueous solutions which, at surface temperature and pressure, are able to co-exist as separate aqueous phases in contact with each other, ii. pumping said biphasic aqueous system down the wellbore to the subterranean location, and iii. converting the biphasic mixture below ground so that its phases combine into a single aqueous phase which is more viscous than the biphasic mixture. The two phases of the aqueous biphasic mixture contain dissolved solutes which segregate between the two phases such that at least one first solute is present at a greater concentration in the first aqueous phase than in the second aqueous phase while at least one second solute is present at a greater concentration in the second aqueous phase than in the first aqueous phase.
    Type: Application
    Filed: November 26, 2008
    Publication date: November 4, 2010
    Applicant: Schlumberger Technology Corporation
    Inventors: Philip Sullivan, Gary Tustin, Yenny Christanti, Gregory Kubala, Bruno Drocho, Trevor Hughes
  • Publication number: 20100163233
    Abstract: A method includes providing a treatment fluid that is a viscous fluid. The viscous fluid may be greater than 0.01 Pa-s, greater than 0.1 Pa-s, and/or a cross-linked polymer based fluid. The method further includes determining a fines migration composition soluble in an aqueous phase of the treatment fluid that is compatible with the treatment fluid, and that interacts to secure fines in an earth formation intersecting a wellbore within a fines reaction time. The method further includes adding an amount of the fines migration composition to the treatment fluid, and treating the earth formation with the treatment fluid. The method includes leaking off a portion of the treatment fluid into the earth formation, and providing a residence time of the leaked off portion of the treatment fluid in the earth formation, where the residence time meets or exceeds the fines reaction time.
    Type: Application
    Filed: December 21, 2009
    Publication date: July 1, 2010
    Inventors: Carlos Abad, Yenny Christanti, Syed Ali, Balkrishna Gadiyar, Brent Busby
  • Patent number: 7703527
    Abstract: A low viscosity wellbore polymer fluid gelling system comprising an aqueous medium and a water-in-water emulsion comprising a plurality of polymers or oligomers, including at least one removable polymer or oligomer, and at least one gelling polymer or oligomer, wherein said fluid has a low viscosity when injected, and the gelling polymer forms a gel downhole which has a storage modulus of at least about 60 Pa after the removable polymer is removed from the fluid. A method of isolating at least one zone of a subterranean formation penetrated by a wellbore includes the steps of preparing a water-in-water emulsion comprising a plurality of polymers or oligomers including at least one removable polymer or oligomer, and at least one gellable polymer or oligomer; and combining the water-in-water emulsion with an aqueous medium to prepare a low viscosity polymer fluid.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: April 27, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip F. Sullivan, Gary John Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Trevor Lloyd Hughes
  • Publication number: 20100093565
    Abstract: A method includes providing a wellbore treatment fluid having a divalent brine and an amount of polymer and lowering a pH value of the treatment fluid. The method further includes retaining the treatment fluid at the lower pH value until the polymer achieves a primary hydration value. The method further includes adding a cross-linking agent and a cross-linking delay agent to the treatment fluid. The cross-linking agent includes zirconium and/or titanium, and the cross-linking delay agent is a polyol. The method further includes performing a wellbore treatment with the treatment fluid.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 15, 2010
    Inventors: Alhad Phatak, Yenny Christanti, Carlos Abad, Balkrishna Gadiyar
  • Publication number: 20090133868
    Abstract: A low viscosity wellbore polymer fluid gelling system comprising an aqueous medium and a water-in-water emulsion comprising a plurality of polymers or oligomers, including at least one removable polymer or oligomer, and at least one gelling polymer or oligomer, wherein said fluid has a low viscosity when injected, and the gelling polymer forms a gel downhole which has a storage modulus of at least about 60 Pa after the removable polymer is removed from the fluid.
    Type: Application
    Filed: November 26, 2007
    Publication date: May 28, 2009
    Inventors: Philip F. Sullivan, Gary John Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Trevor LLoyd Hughes
  • Publication number: 20090048126
    Abstract: A method of treating a subterranean formation penetrated by a wellbore is carried out by providing a treatment fluid comprising a hydratable polymer, a divalent metal salt in an amount of at least about 0.25 mol/L and an aluminum crosslinking agent. The fluid is provided with a pH of from about 5 or higher. The treatment fluid may be caused to contact the formation by introducing the fluid into the wellbore. The fluid may optionally contain a polyol.
    Type: Application
    Filed: July 21, 2008
    Publication date: February 19, 2009
    Inventors: Alhad Phatak, Michael D. Parris, Yenny Christanti, Balkrishna Gadiyar, Philip F. Sullivan, Carlos Abad
  • Publication number: 20090023614
    Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 22, 2009
    Inventors: Philip F. Sullivan, Gary John Tustin, Yenny Christanti, Gregory Kubala, Bruno Drochon, Yiyan Chen, Marie Noelle Dessinges, Paul R. Howard