Patents by Inventor Venkata Gopala Rao Palla
Venkata Gopala Rao Palla 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).
-
Patent number: 11732176Abstract: A method of treating a subterranean formation can include: introducing a first fluid into a wellbore penetrating the subterranean formation; introducing a second fluid into the wellbore after introduction of the first fluid, wherein the second fluid comprises: a base fluid comprising water; a viscosifier; and a stabilizer, and wherein the second fluid has a rheological 3-rpm dial reading to 300-rpm dial reading ratio in the range of 1:1 to 1:3; and introducing a third fluid into the wellbore after introduction of the second fluid, wherein the second fluid inhibits or prevents the first fluid from mixing with the third fluid. The second fluid can be a liquid plug that substantially inhibits or prevents the first fluid from mixing with the third fluid. The first fluid can be a drilling mud or spacer fluid. The third fluid can be a spacer fluid or a cement composition.Type: GrantFiled: September 16, 2021Date of Patent: August 22, 2023Assignee: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Ganesh Shriniwas Pangu, Venkata Gopala Rao Palla
-
Publication number: 20230082853Abstract: A method of treating a subterranean formation can include: introducing a first fluid into a wellbore penetrating the subterranean formation; introducing a second fluid into the wellbore after introduction of the first fluid, wherein the second fluid comprises: a base fluid comprising water; a viscosifier; and a stabilizer, and wherein the second fluid has a rheological 3-rpm dial reading to 300-rpm dial reading ratio in the range of 1:1 to 1:3; and introducing a third fluid into the wellbore after introduction of the second fluid, wherein the second fluid inhibits or prevents the first fluid from mixing with the third fluid. The second fluid can be a liquid plug that substantially inhibits or prevents the first fluid from mixing with the third fluid. The first fluid can be a drilling mud or spacer fluid. The third fluid can be a spacer fluid or a cement composition.Type: ApplicationFiled: September 16, 2021Publication date: March 16, 2023Applicant: Halliburton Energy Services, Inc.Inventors: Sandip Prabhakar Patil, Ganesh Shriniwas Pangu, Venkata Gopala Rao Palla
-
Patent number: 11466520Abstract: A shoe for use with a casing string in a borehole. The shoe may include a first screen positioned within a bore of the shoe or of the casing string near the shoe. The first screen may include orifices sized to prevent the passage of lost circulation material or a material with properties similar to the lost circulation material from outside the shoe through the first screen.Type: GrantFiled: October 31, 2018Date of Patent: October 11, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Tamal Kumar Sen, Venkata Gopala Rao Palla, Lonnie Carl Helms
-
Publication number: 20210404269Abstract: A shoe for use with a casing string in a borehole. The shoe may include a first screen positioned within a bore of the shoe or of the casing string near the shoe. The first screen may include orifices sized to prevent the passage of lost circulation material or a material with properties similar to the lost circulation material from outside the shoe through the first screen.Type: ApplicationFiled: October 31, 2018Publication date: December 30, 2021Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Tamal Kumar Sen, Venkata Gopala Rao Palla, Lonnie Carl Helms
-
Patent number: 10914135Abstract: A well tool attachment includes a tubular body with a bore therethrough extending along a longitudinal axis, wherein the tubular body is configured to seat in a shoe track of a well casing. A plurality of partitions are suspended from the tubular body, dividing the bore of the tubular body into a plurality of segments extending axially through the tubular body. The partitions are configured to break up cement slurry entering the bore of the tubular body into a plurality of cement segments to facilitate drilling after downhole cement sets.Type: GrantFiled: September 27, 2018Date of Patent: February 9, 2021Assignee: Halliburton Energy Services, Inc.Inventors: Lonnie Helms, Venkata Gopala Rao Palla
-
Publication number: 20200399978Abstract: A well tool attachment includes a tubular body with a bore therethrough extending along a longitudinal axis, wherein the tubular body is configured to seat in a shoe track of a well casing. A plurality of partitions are suspended from the tubular body, dividing the bore of the tubular body into a plurality of segments extending axially through the tubular body. The partitions are configured to break up cement slurry entering the bore of the tubular body into a plurality of cement segments to facilitate drilling after downhole cement sets.Type: ApplicationFiled: September 27, 2018Publication date: December 24, 2020Inventors: Lonnie Helms, Venkata Gopala Rao Palla
-
Publication number: 20190292872Abstract: A computing device can determine the integrity of a blowout preventer in a well system using a model generated from real-time sensor data. For example, the computing device can receive predetermined values associated with how pressure decays or otherwise changes in a pressurization subsystem overtime. The pressurization subsystem can be for pressurizing the blowout preventer. The computing device can also receive, from a pressure sensor, real-time pressure measurements indicating pressures in the pressurization subsystem. The computing device can generate the model based on the predetermined values and the pressure measurements. The computing device can use the model to predict the pressure in the pressurization subsystem during a future period of time. The computing device can analyze aspects of the predicted pressure in the pressurization subsystem over the future period of time to determine if the blowout preventer is functioning properly.Type: ApplicationFiled: July 11, 2016Publication date: September 26, 2019Applicant: Halliburton Energy Services, Inc.Inventors: Krishna Babu YERUBANDI, Ravinder GAHLAWAT, Shanu JAIN, Venkata Gopala Rao PALLA, Sean Chandler Jones
-
Patent number: 10222308Abstract: A surface wettability measurement method for determining the surface wettability of a surface for operations that require the removal of oil-based fluid such as cementing operations in an oil/gas environment. Time domain reflectometry (TDR) measurements are used to measure the wettability in a wellbore downhole during operations or in a lab environment when fluid flow is present. A surface wettability measurement system for determining the surface wettability of a surface located either in a wellbore downhole or in a laboratory setting using time domain reflectometry for measurements during operations when fluid flow is present.Type: GrantFiled: November 13, 2014Date of Patent: March 5, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Sameer Bardapurkar, Venkata Gopala Rao Palla, Abhimanyu Pramod Deshpande
-
Patent number: 9951599Abstract: Methods and apparatuses for determining surface wetting of a metallic material with changing well fluids. In general, the methods according to the invention include measuring electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface. Methods and apparatuses for making EIS measurements model double-layer capacitance at a downhole surface in a well, from which the nature and quantification of the wetting of the surface can be inferred.Type: GrantFiled: October 26, 2015Date of Patent: April 24, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Sairam KS Pindiprolu, Dennis Willie Gray, Venkata Gopala Rao Palla
-
Patent number: 9945767Abstract: Methods and apparatuses for determining surface wetting of metallic materials at downhole wellbore condition with fixed or changing well fluids are disclosed. In general, the methods according to the disclosure include carrying out an electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface by simultaneously dynamically moving electrodes exposed to the well fluid while measuring the changes in electrical characteristics between the electrodes.Type: GrantFiled: October 25, 2017Date of Patent: April 17, 2018Assignee: Halliburton Energy Services, Inc.Inventors: Venkata Gopala Rao Palla, Bhargav Gajji, Sameer Bardapurkar, Sairam KS Pindiprolu
-
Publication number: 20180045633Abstract: Methods and apparatuses for determining surface wetting of metallic materials at downhole wellbore condition with fixed or changing well fluids are disclosed. In general, the methods according to the disclosure include carrying out an electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface by simultaneously dynamically moving electrodes exposed to the well fluid while measuring the changes in electrical characteristics between the electrodes.Type: ApplicationFiled: October 25, 2017Publication date: February 15, 2018Inventors: Venkata Gopala Rao Palla, Bhargav Gajji, Sameer Bardapurkar, Sairam KS Pindiprolu
-
Patent number: 9829421Abstract: Methods and apparatuses for determining surface wetting of metallic materials at downhole wellbore condition with fixed or changing well fluids are disclosed. In general, the methods according to the disclosure include carrying out an electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface by simultaneously dynamically moving electrodes exposed to the well fluid while measuring the changes in electrical characteristics between the electrodes.Type: GrantFiled: September 26, 2013Date of Patent: November 28, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Venkata Gopala Rao Palla, Bhargav Gajji, Sameer Bardapurkar, Sairam K S Pindiprolu
-
Publication number: 20170292902Abstract: A surface wettability measurement method for determining the surface wettability of a surface for operations that require the removal of oil-based fluid such as cementing operations in an oil/gas environment. Time domain reflectometry (TDR) measurements are used to measure the wettability in a wellbore downhole during operations or in a lab environment when fluid flow is present. A surface wettability measurement system for determining the surface wettability of a surface located either in a wellbore downhole or in a laboratory setting using time domain reflectometry for measurements during operations when fluid flow is present.Type: ApplicationFiled: November 13, 2014Publication date: October 12, 2017Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Sameer Bardapurkar, Venkata Gopala Rao Palla, Abhimanyu Pramod Deshpande
-
Publication number: 20160216190Abstract: Methods and apparatuses for determining surface wetting of metallic materials at downhole wellbore condition with fixed or changing well fluids are disclosed. In general, the methods according to the disclosure include carrying out an electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface by simultaneously dynamically moving electrodes exposed to the well fluid while measuring the changes in electrical characteristics between the electrodes.Type: ApplicationFiled: September 26, 2013Publication date: July 28, 2016Inventors: Venkata Gopala Rao Palla, Bhargav Gajji, Sameer Bardapurkar, Sairam KS Pindiprolu
-
Publication number: 20160047221Abstract: Methods and apparatuses for determining surface wetting of a metallic material with changing well fluids. In general, the methods according to the invention include measuring electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface. Methods and apparatuses for making EIS measurements model double-layer capacitance at a downhole surface in a well, from which the nature and quantification of the wetting of the surface can be inferred.Type: ApplicationFiled: October 26, 2015Publication date: February 18, 2016Inventors: Sairam KS Pindiprolu, Dennis Willie Gray, Venkata Gopala Rao Palla
-
Patent number: 9200491Abstract: Methods and apparatuses for determining surface wetting of a metallic material with changing well fluids. In general, the methods according to the invention include measuring electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface. Methods and apparatuses for making EIS measurements model double-layer capacitance at a downhole surface in a well, from which the nature and quantification of the wetting of the surface can be inferred.Type: GrantFiled: August 28, 2012Date of Patent: December 1, 2015Assignee: Halliburton Energy Services, Inc.Inventors: Sairam K S Pindiprolu, Dennis Willie Gray, Venkata Gopala Rao Palla
-
Patent number: 9038450Abstract: Disclosed is an apparatus and method for testing a cemented bonding with the formation under wellbore pressure conditions. The apparatus comprises a pressure chamber containing a core of formation material. The cement material to be tested is allowed to set or bond to one side of the core while formation fluids under wellbore pressure conditions are present on the other side. Leakage of formation fluids is measured to evaluate the quality of the interface between the cement and formation materials.Type: GrantFiled: January 18, 2013Date of Patent: May 26, 2015Assignee: Halliburton Energy Services, Inc.Inventors: Sairam K S Pindiprolu, Abhinandan Chiney, Venkata Gopala Rao Palla
-
Publication number: 20140202690Abstract: Disclosed is an apparatus and method for testing a cemented bonding with the formation under wellbore pressure conditions. The apparatus comprises a pressure chamber containing a core of formation material. The cement material to be tested is allowed to set or bond to one side of the core while formation fluids under wellbore pressure conditions are present on the other side. Leakage of formation fluids is measured to evaluate the quality of the interface between the cement and formation materials.Type: ApplicationFiled: January 18, 2013Publication date: July 24, 2014Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Sairam KS PINDIPROLU, Abhinandan Chiney, Venkata Gopala Rao Palla
-
Patent number: 8766641Abstract: Methods and apparatuses for determining surface wetting of a rock material with changing well fluids. In general, the methods according to the invention include measuring electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface. Methods and apparatuses for making EIS measurements model double-layer capacitance at a downhole surface in a well, from which the nature and quantification of the wetting of the surface can be inferred.Type: GrantFiled: August 28, 2012Date of Patent: July 1, 2014Assignee: Halliburton Energy Services, Inc.Inventors: Sairam K S Pindiprolu, Dennis Willie Gray, Venkata Gopala Rao Palla
-
Publication number: 20140062489Abstract: Methods and apparatuses for determining surface wetting of a rock material with changing well fluids. In general, the methods according to the invention include measuring electrical impedance spectroscopy (“EIS”) for a system simulating downhole conditions for the wetting of a surface. Methods and apparatuses for making EIS measurements model double-layer capacitance at a downhole surface in a well, from which the nature and quantification of the wetting of the surface can be inferred.Type: ApplicationFiled: August 28, 2012Publication date: March 6, 2014Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Sairam KS Pindiprolu, Dennis Willie Gray, Venkata Gopala Rao Palla