Patents by Inventor Praveen GONUGUNTLA
Praveen GONUGUNTLA 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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Publication number: 20240110459Abstract: The invention relates to a cementing tool for use in oil and gas well decommissioning operations, in particular so called perforate, wash and cement procedures. The tool (1) is designed for running in a well on drill string and for jetting cement through previously formed perforations in the casing (10) to fill the outer annulus (9) with cement. The tool (1) has a cylindrical wall (3) which is formed from steel (11) and elastomeric (5) elements, whereby it is expandable between a first diameter in which it may be run down the well and a second, larger diameter deployed during cementing operations. (FIG. 2).Type: ApplicationFiled: December 14, 2023Publication date: April 4, 2024Inventors: Lars HOVDA, James C. STEVENS, Dan MUELLER, Praveen GONUGUNTLA
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Patent number: 11879305Abstract: The invention relates to a cementing tool for use in oil and gas well decommissioning operations, in particular so called perforate, wash and cement procedures. The tool (1) is designed for running in a well on drill string and for jetting cement through previously formed perforations in the casing (10) to fill the outer annulus (9) with cement. The tool (1) has a cylindrical wall (3) which is formed from steel (11) and elastomeric (5) elements, whereby it is expandable between a first diameter in which it may be run down the well and a second, larger diameter deployed during cementing operations.Type: GrantFiled: August 19, 2021Date of Patent: January 23, 2024Assignee: CONOCOPHILLIPS COMPANYInventors: Lars Hovda, James C. Stevens, Dan Mueller, Amal Phadke, Praveen Gonuguntla
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Publication number: 20230332480Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus, in particular the washing or cementing operation using a rotating head with nozzles dispensing wash fluid or cement at pressure. A new design of bottom hole assembly is proposed in which the cementing tool has a relatively large diameter in order to optimize pressure whilst the wash tool has a relatively small diameter. The wash process, for a number of reasons, appears to be less sensitive to tool diameter and making the wash tool smaller reduces the overall risk of stuck pipe.Type: ApplicationFiled: May 11, 2023Publication date: October 19, 2023Inventors: Lars HOVDA, Dan MUELLER, James C. STEVENS, Amal PHADKE, Praveen GONUGUNTLA
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Publication number: 20230228173Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) dispensing wash fluid or cement at pressure. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include including rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).Type: ApplicationFiled: March 2, 2023Publication date: July 20, 2023Inventors: Rick WATTS, Stein HAAVARDSTEIN, Lars HOVDA, James C. STEVENS, Dan MUELLER, Brett Borland, Amal PHADKE, Praveen GONUGUNTLA
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Patent number: 11686175Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus, in particular the washing or cementing operation using a rotating head with nozzles dispensing wash fluid or cement at pressure. A new design of bottom hole assembly is proposed in which the cementing tool has a relatively large diameter in order to optimize pressure whilst the wash tool has a relatively small diameter. The wash process, for a number of reasons, appears to be less sensitive to tool diameter and making the wash tool smaller reduces the overall risk of stuck pipe.Type: GrantFiled: August 19, 2021Date of Patent: June 27, 2023Assignee: CONOCOPHILLIPS COMPANYInventors: Lars Hovda, Dan Mueller, James C. Stevens, Amal Phadke, Praveen Gonuguntla
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Patent number: 11608718Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) dispensing wash fluid or cement at pressure. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include including rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).Type: GrantFiled: August 31, 2021Date of Patent: March 21, 2023Assignee: CONOCOPHILLIPS COMPANYInventors: Rick Watts, Stein Haavardstein, Lars Hovda, James C. Stevens, Dan Mueller, Brett Borland, Amal Phadke, Praveen Gonuguntla
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Publication number: 20220056783Abstract: The invention relates to a cementing tool for use in oil and gas well decommissioning operations, in particular so called perforate, wash and cement procedures. The tool (1) is designed for running in a well on drill string and for jetting cement through previously formed perforations in the casing (10) to fill the outer annulus (9) with cement. The tool (1) has a cylindrical wall (3) which is formed from steel (11) and elastomeric (5) elements, whereby it is expandable between a first diameter in which it may be run down the well and a second, larger diameter deployed during cementing operations. (FIG. 2).Type: ApplicationFiled: August 19, 2021Publication date: February 24, 2022Inventors: Lars HOVDA, James C. STEVENS, Dan MUELLER, Amal PHADKE, Praveen GONUGUNTLA
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Publication number: 20220056782Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus, in particular the washing or cementing operation using a rotating head with nozzles dispensing wash fluid or cement at pressure. A new design of bottom hole assembly is proposed in which the cementing tool has a relatively large diameter in order to optimize pressure whilst the wash tool has a relatively small diameter. The wash process, for a number of reasons, appears to be less sensitive to tool diameter and making the wash tool smaller reduces the overall risk of stuck pipe.Type: ApplicationFiled: August 19, 2021Publication date: February 24, 2022Inventors: Lars HOVDA, Dan MUELLER, James C. STEVENS, Amal PHADKE, Praveen GONUGUNTLA
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Publication number: 20210388696Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) dispensing wash fluid or cement at pressure. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include including rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).Type: ApplicationFiled: August 31, 2021Publication date: December 16, 2021Inventors: Rick WATTS, Stein HAAVARDSTEIN, Lars HOVDA, James C. STEVENS, Dan MUELLER, Brett BORLAND, Amal PHADKE, Praveen GONUGUNTLA
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Patent number: 11136862Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) dispensing wash fluid or cement at pressure. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include including rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).Type: GrantFiled: August 2, 2019Date of Patent: October 5, 2021Assignee: CONOCOPHILLIPS COMPANYInventors: Rick Watts, Stein Haavardstein, Lars Hovda, James C. Stevens, Dan Mueller, Brett Borland, Amal Phadke, Praveen Gonuguntla
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Publication number: 20200040707Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) dispensing wash fluid or cement at pressure. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include including rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).Type: ApplicationFiled: August 2, 2019Publication date: February 6, 2020Inventors: Rick WATTS, Stein HAAVARDSTEIN, Lars HOVDA, James C. STEVENS, Dan MUELLER, Brett BORLAND, Amal PHADKE, Praveen GONUGUNTLA