Patents by Inventor Sandeep D. Kulkarni
Sandeep D. Kulkarni 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: 11739636Abstract: Disclosed are methods in which measurements are obtained from a plurality of sensors secured in spaced relation to one another across at least a portion of the depth of reservoir of some form in order to identify one or more characteristics of the fluids within the reservoir. The sensors are used to monitor ambient forces exerted by fluids within the tank proximate each sensor. An example mechanism for obtaining the measurements includes a plurality of sensors, such as strain gauges, supported on a structure that supports the sensors in fixed relation to one another, and can, in some examples, support the sensors in a known relation relative to boundaries of the reservoir.Type: GrantFiled: February 23, 2021Date of Patent: August 29, 2023Assignee: Halliburton Energy Services, Inc.Inventors: Dale E. Jamison, Kenneth Heidt Matthews, Andrew D. Vos, Sandeep D. Kulkarni
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Patent number: 11486248Abstract: Drilling fluid can be monitored throughout a drill site and at various stages of drilling operations. The drilling fluid may be analyzed to identify components that make the drilling fluid as well as the volume of each of the components, The volume of each component can be used, for example, to determine a percentage of water in a water-based drilling fluid and the average specific gravity of the water-based drilling fluid without further decomposition of the drilling fluid. The percentage of water and the average specific gravity can then be used to modify the drilling fluid, in real-time, based on conditions in the wellbore.Type: GrantFiled: July 12, 2019Date of Patent: November 1, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Lalit N. Mahajan, Xiangnan Ye
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Patent number: 11466523Abstract: The equivalent circulating density (“ECD”) in a wellbore may be managed during a wellbore operation using ECD models that take into account the rheology of the wellbore fluid and the rotational speed of tubulars in the wellbore. For example, a method may include rotating a rotating tubular in a stationary conduit while flowing a fluid through an annulus between the rotating tubular and the stationary conduit; calculating an equivalent circulating density (“ECD”) of the fluid where a calculated viscosity of the fluid is based on an ECD model ?_eff=f(? ?_eff)*h(Re), wherein ?_eff is the viscosity of the fluid, ? ?_eff is an effective shear rate of the fluid, and Re is a Reynold's number for the fluid for the rotational speed of the rotating tubular; and changing an operational parameter of the wellbore operation to maintain or change the ECD of the fluid.Type: GrantFiled: May 20, 2016Date of Patent: October 11, 2022Assignee: Halliburton Energy Services, Inc.Inventors: John Paul Bir Singh, Sandeep D. Kulkarni, Vitor Lopes Pereira, Krishna Babu Yerubandi
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Patent number: 11300490Abstract: Systems and methods for adjusting well operations utilize measured values and curve fitting to determine predicted values of the gel strength of well-treatment fluids. The systems and methods are exemplified by first measuring a plurality of measured values representative of the gel strength of the well-treatment fluid, then determining a mathematical function that fits the plurality of measured values. From the mathematical function, the projected values are determined. The projected values are representative of the gel strength for the well-treatment fluid after a projected-value static period.Type: GrantFiled: December 20, 2018Date of Patent: April 12, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Lalit N. Mahajan, Adam Robert Dotson, Dale E. Jamison
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Publication number: 20220018750Abstract: Systems and methods of the disclosed embodiments include a rheometer having a housing with a fluid inlet and a fluid outlet, a cylinder with a cavity located to receive fluid that passes into the fluid inlet, a motor configured to rotate the cylinder, a torsion bob within the cavity, and a controller located remotely from the rheometer. The controller includes a pressure regulator configured to pressurize fluid to power the motor, a rotation sensor configured to receive an optical rotation signal indicating a rotation speed of the cylinder, and a torque sensor configured to receive an optical signal indicating a torque on the torsion bob. The controller may be configured to receive a rotation speed signal from the rotation sensor, a torque signal from the torque sensor, and to calculate a shear stress for the fluid based on the rotation speed signal and the torque signal.Type: ApplicationFiled: January 31, 2019Publication date: January 20, 2022Applicant: Halliburton Energy Services, Inc.Inventors: Dale E. Jamison, Sandeep D. Kulkarni, John L. Maida, Jr.
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Publication number: 20210404334Abstract: Drilling fluid can be monitored throughout a drill site and at various stages of drilling operations. The drilling fluid may be analyzed to identify components that make the drilling fluid as well as the volume of each of the components, The volume of each component can be used, for example, to determine a percentage of water in a water-based drilling fluid and the average specific gravity of the water-based drilling fluid without further decomposition of the drilling fluid. The percentage of water and the average specific gravity can then be used to modify the drilling fluid, in real-time, based on conditions in the wellbore.Type: ApplicationFiled: July 12, 2019Publication date: December 30, 2021Inventors: Sandeep D. Kulkarni, Lalit N. Mahajan, Xiangnan Ye
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Publication number: 20210404336Abstract: Systems and methods for adjusting well operations utilize measured values and curve fitting to determine predicted values of the gel strength of well-treatment fluids. The systems and methods are exemplified by first measuring a plurality of measured values representative of the gel strength of the well-treatment fluid, then determining a mathematical function that fits the plurality of measured values. From the mathematical function, the projected values are determined. The projected values are representative of the gel strength for the well-treatment fluid after a projected-value static period.Type: ApplicationFiled: December 20, 2018Publication date: December 30, 2021Inventors: Sandeep D. Kulkarni, Lalit N. Mahajan, Adam Robert Dotson, Dale E. Jamison
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Publication number: 20210180449Abstract: Disclosed are methods in which measurements are obtained from a plurality of sensors secured in spaced relation to one another across at least a portion of the depth of reservoir of some form in order to identify one or more characteristics of the fluids within the reservoir. The sensors are used to monitor ambient forces exerted by fluids within the tank proximate each sensor. An example mechanism for obtaining the measurements includes a plurality of sensors, such as strain gauges, supported on a structure that supports the sensors in fixed relation to one another, and can, in some examples, support the sensors in a known relation relative to boundaries of the reservoir.Type: ApplicationFiled: February 23, 2021Publication date: June 17, 2021Applicant: Halliburton Energy Services, Inc.Inventors: Dale E. Jamison, Kenneth Heidt Matthews, Andrew D. Vos, Sandeep D. Kulkarni
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Patent number: 10947843Abstract: Disclosed are methods in which measurements are obtained from a plurality of sensors secured in spaced relation to one another across at least a portion of the depth of reservoir of some form in order to identify one or more characteristics of the fluids within the reservoir. The sensors are used to monitor ambient forces exerted by fluids within the tank proximate each sensor. An example mechanism for obtaining the measurements includes a plurality of sensors, such as strain gauges, supported on a structure that supports the sensors in fixed relation to one another, and can, in some examples, support the sensors in a known relation relative to boundaries of the reservoir.Type: GrantFiled: September 16, 2015Date of Patent: March 16, 2021Assignee: Halliburton Energy Services, Inc.Inventors: Dale E. Jamison, Kenneth Heidt Matthews, Andrew D. Vos, Sandeep D. Kulkarni
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Patent number: 10590324Abstract: A treatment fluid comprises: a base fluid; a lost-circulation material, wherein the lost-circulation material inhibits or prevents some or all of the treatment fluid from penetrating into a subterranean formation from a wellbore, wherein the wellbore penetrates the subterranean formation; and a suspending agent, wherein the suspending agent consists of a plurality of fibers, and wherein the suspending agent provides a lost-circulation material distribution of at least 30% for a test treatment fluid consisting essentially of the base fluid, the lost-circulation material, and the suspending agent at the temperature of a lost-circulation zone of the subterranean formation and static aging for at least 1 hour.Type: GrantFiled: October 23, 2018Date of Patent: March 17, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Matthew L. Miller, Dale E. Jamison, Kushabhau D. Teke
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Patent number: 10544354Abstract: Various embodiments disclosed relate to methods, compositions, and systems for enhanced oil recovery including a viscosifier polymer. In various embodiments, the present invention provides a method of enhanced oil recovery that can include obtaining or providing a composition that includes a viscosifier polymer. The viscosifier polymer includes an ethylene repeating unit including a —C(O)NH2 group and an ethylene repeating unit including an —S(O)2OR1 group, where the repeating units are in block, alternate, or random configuration. At each occurrence R1 can be independently selected from the group consisting of —H and a counterion. The method can include placing the composition in a subterranean formation downhole via an injection wellbore. The method can also include extracting material comprising petroleum from the subterranean formation downhole via a production wellbore.Type: GrantFiled: February 12, 2014Date of Patent: January 28, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Pubudu Hasanka Gamage, Sandeep D. Kulkarni, William Walter Shumway
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Patent number: 10400593Abstract: A well system including a drill string having an inlet and extending from a surface location into a wellbore and defining an annulus between the drill string and the wellbore; a fluid circuit that circulates a treatment fluid, the fluid circuit extending from the inlet, through the drill string to a bottom of the wellbore, back to the surface location within the annulus, and back to the inlet; and one or more ultrasound devices arranged at-line, off-line, or in-line with fluid circuit to monitor the treatment fluid and track a real-time particle size distribution (PSD) of one or more particles suspended within the treatment fluid.Type: GrantFiled: February 13, 2015Date of Patent: September 3, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Cato R. McDaniel
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Patent number: 10329471Abstract: Some embodiments described herein relate to methods comprising providing a proposed invert emulsion formulation, wherein the proposed invert emulsion formulation comprises an oil phase, an aqueous phase, and a particulates fraction comprising a first sub-fraction and a second sub-fraction, wherein the first sub-fraction comprises high-gravity particulates and the second sub-fraction comprises low-gravity particulates; calculating an initial associative stability value of the proposed invert emulsion based on the degree of association between the aqueous phase and the particulates fraction comprising both the first sub-fraction and the second sub-fraction; manipulating the proposed invert emulsion based on the initial associative stability value so as to produce an associatively stable invert emulsion having a final associative stability value in the range of between about 50% and about 100%; and introducing the associatively stable invert emulsion into a subterranean formation.Type: GrantFiled: August 8, 2017Date of Patent: June 25, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Kushabhau D. Teke, Dale E. Jamison
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Patent number: 10240080Abstract: Various embodiments disclosed related to methods, compositions, and systems for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a crosslinkable viscosifier polymer. The crosslinkable viscosifier polymer can include an ethylene repeating unit including a —C(O)NH2 group and an ethylene repeating unit including an —S(O)2OR1 group, wherein the repeating units are in block, alternate, or random configuration. At each occurrence R1 can be independently selected from the group consisting of —H and a counterion. The composition can also include at least one crosslinker. The method also includes placing the composition in a subterranean formation downhole.Type: GrantFiled: February 12, 2014Date of Patent: March 26, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Pubudu Hasanka Gamage, Sandeep D. Kulkarni
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Publication number: 20190055445Abstract: A treatment fluid comprises: a base fluid; a lost-circulation material, wherein the lost-circulation material inhibits or prevents some or all of the treatment fluid from penetrating into a subterranean formation from a wellbore, wherein the wellbore penetrates the subterranean formation; and a suspending agent, wherein the suspending agent consists of a plurality of fibers, and wherein the suspending agent provides a lost-circulation material distribution of at least 30% for a test treatment fluid consisting essentially of the base fluid, the lost-circulation material, and the suspending agent at the temperature of a lost-circulation zone of the subterranean formation and static aging for at least 1 hour.Type: ApplicationFiled: October 23, 2018Publication date: February 21, 2019Inventors: Sandeep D. Kulkarni, Matthew L. Miller, Dale E. Jamison, Kushabhau D. Teke
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Publication number: 20190048672Abstract: The equivalent circulating density (“ECD”) in a wellbore may be managed during a wellbore operation using ECD models that take into account the rheology of the wellbore fluid and the rotational speed of tubulars in the wellbore. For example, a method may include rotating a rotating tubular in a stationary conduit while flowing a fluid through an annulus between the rotating tubular and the stationary conduit; calculating an equivalent circulating density (“ECD”) of the fluid where a calculated viscosity of the fluid is based on an ECD model ?_eff=f(? ?_eff)*h(Re), wherein ?_eff is the viscosity of the fluid, ? ?_eff is an effective shear rate of the fluid, and Re is a Reynold's number for the fluid for the rotational speed of the rotating tubular; and changing an operational parameter of the wellbore operation to maintain or change the ECD of the fluid.Type: ApplicationFiled: May 20, 2016Publication date: February 14, 2019Inventors: John Paul Bir SINGH, Sandeep D. KULKARNI, Vitor LOPES PEREIRA, Krishna Babu YERUBANDI
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Patent number: 10196869Abstract: A wellbore fluid sampling system may comprise a mixing system coupled to a wellbore sample supply and a recycled diluent supply, a fluid analysis system coupled to the mixing system, and a diluent recycle system coupled to the fluid analysis system and the mixing system, wherein the diluent recycle system comprises an evaporator and a condenser. A method for recycling diluent may comprise combining a wellbore fluid sample with a diluent to form a diluted wellbore fluid sample, analyzing the diluted wellbore fluid sample to determine one or more fluid properties, separating at least a portion of the diluent from the wellbore fluid sample in the diluted wellbore fluid sample, and recycling the separated portion of the diluent for re-use.Type: GrantFiled: December 23, 2014Date of Patent: February 5, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Robert J. Murphy, Sandeep D. Kulkarni
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Patent number: 10184871Abstract: Shear thinning fluids may be useful as calibration fluids for calibrating rheometers with bob/rotor eccentricity and at lower shear rates, which may be particularly useful for calibrating rheometers at well sites that are used for measuring the rheological properties of complex fluids (e.g., wellbore fluids like drilling fluids, cementing fluids, fracturing fluids, completion fluids, and workover fluids). Additionally, high shear rate calibrations may also be performed with shear thinning calibration fluids. Newtonian fluids may be used for high shear rate calibrations in alternate of or in addition to the shear thinning calibration fluid.Type: GrantFiled: November 9, 2017Date of Patent: January 22, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Jacob Michael Sieverling, Dale E. Jamison
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Patent number: 10151677Abstract: An example well system including a drill string extending from a surface location into a wellbore and defining an annulus between the drill string and the wellbore, a fluid circuit extending through the drill string to a bottom of the wellbore and back to the surface location within the annulus, and further extending back to the drill string from the annulus, and one or more flow imaging devices in fluid communication with the fluid circuit to monitor the wellbore fluid and track a real-time particle size distribution (PSD) of one or more particulates suspended within the wellbore fluid.Type: GrantFiled: July 8, 2014Date of Patent: December 11, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Robert J. Murphy
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Patent number: 10138405Abstract: A treatment fluid comprises: a base fluid; a lost-circulation material, wherein the lost-circulation material inhibits or prevents some or all of the treatment fluid from penetrating into a subterranean formation from a wellbore, wherein the wellbore penetrates the subterranean formation; and a suspending agent, wherein the suspending agent consists of a plurality of fibers, and wherein the suspending agent provides a lost-circulation material distribution of at least 30% for a test treatment fluid consisting essentially of the base fluid, the lost-circulation material, and the suspending agent at the temperature of a lost-circulation zone of the subterranean formation and static aging for at least 1 hour.Type: GrantFiled: November 25, 2013Date of Patent: November 27, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Sandeep D. Kulkarni, Matthew L. Miller, Dale E. Jamison, Kushabhau D. Teke