Patents by Inventor Juanita M. Cassidy

Juanita M. Cassidy 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: 20170247600
    Abstract: Sulfide stress cracking of a metal component may be inhibited by treating the metal component with a mixture comprising at least one organic aldehyde and at least one surfactant. Such metal components may be those suitable for use in a downhole environment, at a well site, in a storage facility, in a transportation infrastructure, in a refinery facility, and any combination thereof where the metal component may be exposed to hydrogen sulfide.
    Type: Application
    Filed: October 16, 2014
    Publication date: August 31, 2017
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Gong CHEN, Juanita M. CASSIDY, Jim L. LANE
  • Patent number: 9652564
    Abstract: Testing scale buildup in a well tool can include pressurizing separate cationic and anionic solutions, then heating the separate solutions, mixing together the solutions, and exposing the well tool to the mixed solutions. A well tool can be constructed by a) determining velocities of flow at a predetermined offset from surfaces of a geometric model representative of the well tool, b) calculating scale buildup on the surfaces based at least in part on the velocities, c) reducing pressure change per unit distance along selected ones of the surfaces having greater than a predetermined level of scale buildup, and d) repeating steps a-c until all scale buildup is no greater than the predetermined level. A method of predicting scale buildup can include inputting a parameter indicative of flow through a well tool to a mathematical model, which determines a rate of scale buildup on a surface of the well tool.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: May 16, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Syed Hamid, Christopher L. Edwards, Juanita M. Cassidy, Pete Dagenais
  • Publication number: 20160222279
    Abstract: Corrosion inhibitor intensifiers that include a phosphonic acid, phosphonate, an ester thereof, a salt thereof, and any combination thereof may be useful in combination with corrosion inhibitors for inhibiting the corrosion for corrosion resistant alloys, and in particular, phosphonate corrosion inhibitors. In some instances, a corrosion resistant alloy that comprises at least one selected from the group consisting of chromium, nickel, copper, molybdenum, and any combination thereof may be in fluid communication with a wellhore penetrating a subterranean formation and contacted by an acidic treatment fluid comprising an aqueous base fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier that comprises at least one selected from the group consisting of a phosphonic acid, phosphonate, an ester thereof, a salt thereof, and any combination thereof.
    Type: Application
    Filed: July 31, 2013
    Publication date: August 4, 2016
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Juanita M. Cassidy
  • Publication number: 20150356210
    Abstract: Testing scale buildup in a well tool can include pressurizing separate cationic and anionic solutions, then heating the separate solutions, mixing together the solutions, and exposing the well tool to the mixed solutions. A well tool can be constructed by a) determining velocities of flow at a predetermined offset from surfaces of a geometric model representative of the well tool, b) calculating scale buildup on the surfaces based at least in part on the velocities, c) reducing pressure change per unit distance along selected ones of the surfaces having greater than a predetermined level of scale buildup, and d) repeating steps a-c until all scale buildup is no greater than the predetermined level. A method of predicting scale buildup can include inputting a parameter indicative of flow through a well tool to a mathematical model, which determines a rate of scale buildup on a surface of the well tool.
    Type: Application
    Filed: April 12, 2013
    Publication date: December 10, 2015
    Inventors: Syed HAMID, Christopher L. EDWARDS, Juanita M. CASSIDY, Pete DAGENAIS
  • Patent number: 8716199
    Abstract: Corrosion inhibitor compounds including a corrosion inhibitor and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 6, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Patent number: 8404157
    Abstract: Of the many methods provided herein, a method comprising: (a) combining a corrosion inhibitor composition with an aqueous acid solution, the corrosion inhibitor composition comprising a benzylideneaniline compound corresponding to Formula 1 below: wherein R is H, methyl, ethyl, hydroxy, methoxy, ethoxy, bromo, chloro, fluoro, mercapto, dimethylamino, or diethylamino groups and/or a cinnamylideneaniline compound corresponding to Formula 2 below: wherein R is H methyl, ethyl, hydroxy, methoxy, ethoxy, bromo, chloro, fluoro, mercapto, dimethylamino, or diethylamino groups; and contacting a metal surface with the aqueous acid solution.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: March 26, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Chad E. Kizer, Anupon Sabhapondit
  • Patent number: 8361937
    Abstract: The invention relates to corrosion inhibitor compositions comprising products of a reaction between aldehydes and amides for use in subterranean applications and methods related thereto. In general, the methods for inhibiting corrosion comprise providing a corrosive environment and adding a composition comprising a corrosion inhibitor to the corrosive environment. The corrosion inhibitor comprises a product of a reaction between at least one aldehyde and at least one amide that is not formamide or a formamide derivative.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: January 29, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Chad E. Kiser
  • Patent number: 8318085
    Abstract: Methods of inhibiting the corrosion of a metal surface contacted by an aqueous acid solution. The methods combine a corrosion inhibiting composition with the aqueous acid solution, wherein the corrosion inhibiting composition comprises a reaction product of an alpha,beta-unsaturated ketone with a primary or secondary amine. The metal surface is then contacted with the aqueous acid solution comprising the corrosion inhibiting composition, thereby inhibiting corrosion thereon.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 27, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Keith A. Frost
  • Patent number: 8240384
    Abstract: Structures can be formed downhole by accumulating already existing materials and/or materials introduced into a well to perform a specified function. The formed structures may be used to obstruct fluid flow of production or injection fluids, carry mechanical loads, control electrical or magnetic properties of components, mechanically actuate a component, as well as others. The materials may be induced to form the specified structure, such as by application of a potential downhole. For example, electrical, magnetic, sonic, biological potentials, or a combination thereof may be established downhole to form specified structures in specified locations to perform specified functions.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Todd B. Miller, Syed Hamid, Juanita M. Cassidy, Donald G. Kyle, Pete Clement Dagenais, Michael L. Fripp, Ashok Santra
  • Publication number: 20120142563
    Abstract: The invention relates to corrosion inhibitor compositions comprising products of a reaction between aldehydes and amides for use in subterranean applications and methods related thereto. In general, the methods for inhibiting corrosion comprise providing a corrosive environment and adding a composition comprising a corrosion inhibitor to the corrosive environment. The corrosion inhibitor comprises a product of a reaction between at least one aldehyde and at least one amide that is not formamide or a formamide derivative.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 7, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Juanita M. Cassidy, Chad E. Kiser
  • Publication number: 20120035086
    Abstract: Methods of inhibiting the corrosion of a metal surface contacted by an aqueous acid solution. The methods combine a corrosion inhibiting composition with the aqueous acid solution, wherein the corrosion inhibiting composition comprises a reaction product of an alpha,beta-unsaturated ketone with a primary or secondary amine. The metal surface is then contacted with the aqueous acid solution comprising the corrosion inhibiting composition, thereby inhibiting corrosion thereon.
    Type: Application
    Filed: October 18, 2011
    Publication date: February 9, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Keith A. Frost
  • Patent number: 8062586
    Abstract: Methods and compositions are provided that inhibit the corrosion of metal surfaces by aqueous acid solutions. The inhibition is basically achieved by the addition of a reaction product of an alpha, beta-unsaturated aldehyde or ketone with a primary or secondary amine to the aqueous acid solution.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 22, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Keith A. Frost
  • Patent number: 8058211
    Abstract: Of the many methods and compositions provided herein, one method includes a method comprising contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a compound that corresponds to a formula R1R2XCCOOH, wherein X is a halogen, R1 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group, and R2 comprises at least one group selected from the group consisting of a C1-C20 alkyl group, a C3-C20 cycloalkyl group, a C1-C20 oxyalkyl, and a C6-C20 aryl group.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 15, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Chad E. Kiser, J. Michael Wilson
  • Patent number: 7994101
    Abstract: Many methods are presented herein including a method comprising: providing a metal surface; and contacting the metal surface with a treatment fluid comprising an aqueous base fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising a corrosion inhibitor compound that corresponds to a formula: PR1R2R3, wherein R1, R2, and R3 are chosen from the group consisting of C1-C20 alkyl, cycloalkyl, oxyalkyl, and aryl groups, and R1, R2, and R3 may or may not be equal. Corrosion inhibitor intensifier compositions also are provided.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: August 9, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Chad E. Kiser, Jim L. Lane
  • Patent number: 7994099
    Abstract: Provided herein are methods and compositions that include a method comprising contacting a metal surface with an acidic fluid comprising a corrosion inhibitor that comprises a reaction product formed from a direct or an indirect reaction of an aldehyde with a thiol and/or an amine functionalized ring structure. A composition provided includes an acidic treatment fluid that comprises an aqueous-base fluid, and acid, and a corrosion inhibitor that comprises a reaction product formed from a direct or an indirect reaction of an aldehyde with a thiol and/or an amine functionalized ring structure.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 9, 2011
    Assignee: Haliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Chad E. Kiser, Jim L. Lane
  • Publication number: 20110190173
    Abstract: Treatment fluids that comprise a phosphorus component useful for inhibiting metal corrosion in acidic environments and associated methods of use are provided. An example of a method of using such treatment fluids may comprise providing a treatment fluid that comprises: an aqueous base fluid, a weak acid or salt thereof, and a phosphorus component, and introducing the treatment fluid into a subterranean formation.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 4, 2011
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Publication number: 20110155959
    Abstract: Of the many methods provided herein, a method comprising: (a) combining a corrosion inhibitor composition with an aqueous acid solution, the corrosion inhibitor composition comprising a benzylideneaniline compound corresponding to Formula 1 below: wherein R is H, methyl, ethyl, hydroxy, methoxy, ethoxy, bromo, chloro, fluoro, mercapto, dimethylamino, or diethylamino groups and/or a cinnamylideneaniline compound corresponding to Formula 2 below: wherein R is H methyl, ethyl, hydroxy, methoxy, ethoxy, bromo, chloro, fluoro, mercapto, dimethylamino, or diethylamino groups; and contacting a metal surface with the aqueous acid solution.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 30, 2011
    Inventors: Juanita M. Cassidy, Chad E. Kiser, Anupom Sabhapondit
  • Publication number: 20110140049
    Abstract: Corrosion inhibitor compounds including a corrosion inhibitor and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Application
    Filed: February 23, 2011
    Publication date: June 16, 2011
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Patent number: 7960316
    Abstract: At least in aspect, the invention provides methods that include a method comprising: contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: June 14, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser
  • Publication number: 20110077174
    Abstract: At least in aspect, the invention provides methods that include a method comprising: contacting a metal surface with an acidic fluid comprising an aqueous base-fluid, an acid, a corrosion inhibitor, and a corrosion inhibitor intensifier composition comprising an intensifier compound that corresponds to the following formula: wherein R1 is a methyl or ethyl group, and R2 is H or an alkyl, aryl, alkyl aryl, alkylthio aryl, alkyloxy aryl, halogenated aryl, phenyl, alkyl phenyl, alkylthio phenyl, alkyloxyphenyl, or a halogenated phenyl group.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Juanita M. Cassidy, Jim L. Lane, Chad E. Kiser