Patents by Inventor Christopher Daeffler

Christopher Daeffler 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: 20250075595
    Abstract: A method of reducing corrosion within a wellbore includes placing a wireline including a perforating gun in a wellbore, the wellbore extending through an earth formation and including a casing extending through the earth formation, the wireline including zinc, discharging the perforating gun to form perforations through the casing and in the earth formation surrounding the casing proximate the at least one perforating gun, flowing a fracturing fluid including one or more proppants through the perforations and into the earth formation to open fractures in the earth formation with the one or more proppants, introducing a flushing fluid into the wellbore to displace the fracturing fluid, and flowing a corrosion inhibitor composition into the wellbore and through the perforations with at least one of the fracturing fluid and the flushing fluid. The corrosion inhibitor includes an alkenylphenone, and a substituted 1-azanapthalene. Related methods of inhibiting corrosion are also disclosed.
    Type: Application
    Filed: July 24, 2024
    Publication date: March 6, 2025
    Inventors: Ahmed Rabie, Rasika Prabhu, Christopher Daeffler, Juan David Estrada Benavides, Robert Brown
  • Publication number: 20250067144
    Abstract: Methods for shortening the waiting-on-cement (WOC) time during primary and remedial cementing operations are disclosed. A fluid pill is injected into the wellbore that comprises reactants. The reaction is exothermic and heat is conducted into the cement sheath, thereby accelerating hydration and shortening the time necessary for the slurry to set and harden.
    Type: Application
    Filed: November 11, 2024
    Publication date: February 27, 2025
    Inventors: Dominic Perroni, Bipin Jain, Anatoly Vladimirovich Medvedev, Carlos Abad, Christopher Daeffler
  • Publication number: 20250059434
    Abstract: Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.
    Type: Application
    Filed: September 16, 2024
    Publication date: February 20, 2025
    Inventors: Christopher DAEFFLER, Mohan Kanaka Raju PANGA
  • Publication number: 20250043661
    Abstract: A method includes placing, via a bailer, a slurry into a wellbore to deposit a slurry downhole. The slurry includes a solids mixture and a fluid. The method also includes terminating placement of the slurry for a period of time. A viscous pill inhibits settling of the solids mixture, and the slurry displaces the viscous pill in contact with a surface of a screen.
    Type: Application
    Filed: July 2, 2024
    Publication date: February 6, 2025
    Inventors: Juan-Carlos Santamaria, Kinga Hendum, Nirupama Vaidya, Elvin Yusifzada, Balkrishna Gadiyar, Christopher Daeffler
  • Patent number: 12158055
    Abstract: Methods for shortening the waiting-on-cement (WOC) time during primary and remedial cementing operations are disclosed. A fluid pill is injected into the wellbore that comprises reactants. The reaction is acclerating hydration and shortening the time necessary for the slurry to set and harden.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: December 3, 2024
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dominic Perroni, Bipin Jain, Anatoly Medvedev, Carlos Abad, Christopher Daeffler
  • Publication number: 20240360355
    Abstract: Treatment of hydrocarbon formations using acid blends that contain water soluble polymers having chemical affinity for acid-susceptible rock species in the hydrocarbon formation is described herein. The polymers retard the activity of acid on acid-susceptible species of rock formations.
    Type: Application
    Filed: July 12, 2022
    Publication date: October 31, 2024
    Inventors: Julia FERNANDEZ DEL VALLE, Christopher DAEFFLER, Mohan PANGA
  • Publication number: 20240336830
    Abstract: An aqueous solution is disclosed including water, an acid, a nitrogen-containing compound, and a functionalizing agent (FA), which can be a ketone, diketone, aldehyde, dialdehyde, organic acid, and combinations thereof. An additional aqueous solution is disclosed including water, an acid, and an acid neutralizing agent which can be a reaction product of at least a portion of the nitrogen-containing compound and the functionalizing agent. Methods of treating a formation are also disclosed including treating a formation fluidly coupled to a wellbore with an oilfield treatment fluid comprising either or both of the aqueous solutions.
    Type: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Inventors: Christopher Daeffler, Olga Nevvonen, Mohan Kanaka Raju Panga
  • Publication number: 20240309266
    Abstract: Treatment of subterranean formations using acid blends that contain alcohols and surfactants is described herein. The alcohols and surfactants are used together to retard the activity of acid on acid-susceptible species of rock formations.
    Type: Application
    Filed: July 11, 2022
    Publication date: September 19, 2024
    Inventors: Julia Fernandez del Valle, Christopher Daeffler, Mohan Panga
  • Patent number: 12091610
    Abstract: Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: September 17, 2024
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher Daeffler, Mohan Kanaka Raju Panga
  • Publication number: 20240003222
    Abstract: Methods for shortening the waiting-on-cement (WOC) time during primary and remedial cementing operations are disclosed. A fluid pill is injected into the wellbore that comprises reactants. The reaction is acclerating hydration and shortening the time necessary for the slurry to set and harden.
    Type: Application
    Filed: November 10, 2021
    Publication date: January 4, 2024
    Inventors: Dominic Perroni, Bipin Jain, Anatoly Medvedev, Carlos Abad, Christopher Daeffler
  • Publication number: 20230279284
    Abstract: Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parameter values of the formation. Also described is a method for treating a subterranean formation by introducing an acid to the formation following the introduction of an acid retarding agent to the formation. Also described is a method for acid fracturing a subterranean formation including reducing the concentration of an acid retarding agent contained in a retarded acidizing fluid over the course of the acid fracturing operation.
    Type: Application
    Filed: May 10, 2023
    Publication date: September 7, 2023
    Inventors: Xiangdong Qiu, Dominic Joseph Brady, Ziad Al-Jalal, Mohan Kanaka Raju Panga, Christopher Daeffler
  • Publication number: 20230257645
    Abstract: Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Inventors: Christopher DAEFFLER, Mohan Kanaka Raju PANGA
  • Patent number: 11692128
    Abstract: Described herein are aqueous composition(s) containing water; a viscoelastic surfactant; an acid; and a water-soluble acid retarding agent. Further described are methods of making and using such compositions.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: July 4, 2023
    Assignee: Schlumberget Technology Corporation
    Inventors: Andrey Yakovlev, Xuehao Tan, Christopher Daeffler, Mohan Kanaka Raju Panga
  • Publication number: 20230203364
    Abstract: An aqueous solution is disclosed including water, an acid, a nitrogen-containing compound, and a functionalizing agent (FA), which can be a ketone, diketone, aldehyde, dialdehyde, organic acid, and combinations thereof. An additional aqueous solution is disclosed including water, an acid, and an acid neutralizing agent which can be a reaction product of at least a portion of the nitrogen-containing compound and the functionalizing agent. Methods of treating a formation are also disclosed including treating a formation fluidly coupled to a wellbore with an oilfield treatment fluid comprising either or both of the aqueous solutions.
    Type: Application
    Filed: March 1, 2023
    Publication date: June 29, 2023
    Inventors: Christopher Daeffler, Olga Nevvonen, Mohan Kanaka Raju Panga
  • Patent number: 11685858
    Abstract: Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parameter values of the formation. Also described is a method for treating a subterranean formation by introducing an acid to the formation following the introduction of an acid retarding agent to the formation. Also described is a method for acid fracturing a subterranean formation including reducing the concentration of an acid retarding agent contained in a retarded acidizing fluid over the course of the acid fracturing operation.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: June 27, 2023
    Assignee: Schlumberger Technology Corporation
    Inventors: Xiangdong Qiu, Dominic Joseph Brady, Ziad Al-Jalal, Mohan Kanaka Raju Panga, Christopher Daeffler
  • Patent number: 11603490
    Abstract: An aqueous solution is disclosed including water, an acid, a nitrogen-containing compound, and a functionalizing agent (FA), which can be a ketone, diketone, aldehyde, dialdehyde, organic acid, and combinations thereof. An additional aqueous solution is disclosed including water, an acid, and an acid neutralizing agent which can be a reaction product of at least a portion of the nitrogen-containing compound and the functionalizing agent. Methods of treating a formation are also disclosed including treating a formation fluidly coupled to a wellbore with an oilfield treatment fluid comprising either or both of the aqueous solutions.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: March 14, 2023
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher Daeffler, Olga Nevvonen, Mohan Kanaka Raju Panga
  • Patent number: 11530349
    Abstract: A method is described for treating a subterranean formation penetrated by a wellbore including injecting into the formation a treatment fluid including a rheological modifier; at least one viscoelastic surfactant (VES) at a concentration of between about 0.1 and about 10 percent by weight; and a formation-dissolving agent selected from the group consisting of hydrochloric acid, formic acid, acetic acid, lactic acid, glycolic acid, sulfamic acid, malic acid, citric acid, tartaric acid, maleic acid, methylsulfamic acid, chloroacetic acid, aminopolycarboxylic acids, 3-hydroxypropionic acid, polyaminopolycarboxylic acids, salts thereof and mixtures of said acids and salts.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: December 20, 2022
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohan Kanaka Raju Panga, Philippe Enkababian, Christopher Daeffler, Tausif Khizar Ahmed, Kong Teng Ling
  • Publication number: 20210380872
    Abstract: Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 9, 2021
    Inventors: Christopher DAEFFLER, Mohan Kanaka Raju PANGA
  • Publication number: 20210277302
    Abstract: Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parameter values of the formation. Also described is a method for treating a subterranean formation by introducing an acid to the formation following the introduction of an acid retarding agent to the formation. Also described is a method for acid fracturing a subterranean formation including reducing the concentration of an acid retarding agent contained in a retarded acidizing fluid over the course of the acid fracturing operation.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Inventors: Xiangdong Qiu, Dominic Joseph Brady, Ziad Al-Jalal, Mohan Kanaka Raju Panga, Christopher Daeffler
  • Patent number: 11091689
    Abstract: Described herein is a multi-phase aqueous composition containing a surfactant; a first phase comprising water, an acid, and a water-soluble acid retarding agent; and a second phase selected from the group consisting of an immiscible organic phase, a gas, and combinations thereof. Further described are methods of making and using such compositions.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: August 17, 2021
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher Daeffler, Mohan Kanaka Raju Panga