Patents by Inventor Dinesh Ananda Shetty

Dinesh Ananda Shetty 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: 20210131235
    Abstract: A workflow for fracturing a subterranean formation includes providing fracturing databases or models for the hydrocarbon wellbore, selecting one or more fracturing fluid systems for fracturing the subterranean formation based on the fracturing databases or models and recommending at least one of the one or more selected fracturing fluid systems for fracturing the subterranean formation. Additionally, a workflow controller for fracturing a subterranean formation includes a workflow processing unit having fracturing models or databases to determine functional aspects of one or more fracturing fluid systems to provide a fracturing fluid system recommendation for the subterranean formation, and a fracturing fluid delivery unit that applies the fracturing fluid system recommendation to the subterranean formation. A hydrocarbon wellbore fracturing system for a subterranean formation is also provided.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Inventors: Aaron Gene Russell, Baidurja Ray, Dinesh Ananda Shetty, Christopher Austin Lewis, Larry Steven Eoff, Janette Cortez Montalvo
  • Publication number: 20210131280
    Abstract: A wellbore fracturing system that includes wellbore fracturing resources coupled through a wellbore conveyance to a subterranean formation of the wellbore; The wellbore fracturing system further includes a bottom hole pressure gauge that provides a bottom hole gauge pressure, and a processor coupled to the wellbore fracturing resources and the wellbore conveyance that calculates a wellbore friction pressure using a time-series sampling of bottom-hole gauge pressures for a fracturing fluid system after a uniform fracturing fluid condition is achieved in the wellbore. Also included are methods of calculating and managing a wellbore friction pressure.
    Type: Application
    Filed: November 6, 2019
    Publication date: May 6, 2021
    Inventors: Baidurja Ray, Dinesh Ananda Shetty, Aaron Gene Russell, Mikko Jaaskelainen
  • Patent number: 10997271
    Abstract: To improve efficiency for solving a system of equations, art equation solver uses variable reduction techniques to reduce a number of variables to be solved. The equation solver identifies derived variables and eliminates them from the system of equations. The equation solver considers the remaining variables to be primitive variables. The primitive variables may be rewritten into a representation of the system of equations or into a set of equations that may be used to solve for values of the primitive variables. The equation solver solves for values of the primitive variables. Prior to solving or during solving iterations, the equation solver may apply storage policies to further reduce the number of variables to be solved. The storage policies indicate parameters and techniques for eliminating primitive variables to be solved, such as primitive variables that are insignificant (i.e., have little effect on a solution for the system of equations).
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 4, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Dinesh Ananda Shetty
  • Publication number: 20210108509
    Abstract: The disclosure provides a method and a computer program product for determining distribution of fracturing components in fracture clusters of a wellbore, and a fracturing controller. An example of the method includes: (1) modifying surface flow rates for pumping a fracturing component into the wellbore, (2) measuring surface pressures for the surface flow rates, and (3) determining flow rates for the fracture clusters employing the surface flow rates, the surface pressures, and a model representing flow distribution of the wellbore. An example fracturing controller includes (1) an interface configured to receive surface flow rates and corresponding surface pressures for pumping a fracturing component into a wellbore, wherein the surface flow rates are modified in a series of steps, and (2) a processor configured to determine flow rates for the fracture clusters employing the surface flow rates, the surface pressures, and a model representing flow distribution of the wellbore.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 15, 2021
    Inventors: Tirumani N. Swaminathan, Dinesh Ananda Shetty
  • Patent number: 10961834
    Abstract: An illustrative hydraulic fracturing flow simulation system includes: a data acquisition module collecting measurements from a subterranean formation; a processing module implementing a hydraulic fracturing simulation method; and a visualization module that displays the time-dependent spatial distribution. The simulation method includes: deriving from the measurements a network of fractures having junctions where two or more fractures intersect; ordering a set of corner points associated with each junction; calculating a junction area from each set of corner points; determining a current state that includes flow parameter values at discrete points arranged along the fractures in said network; constructing a set of linear equations for deriving a subsequent state from the current state while accounting for said junction areas; and repeatedly solving the set of linear equations to obtain a sequence of subsequent states, the sequence embodying a time-dependent spatial distribution of at least one flow parameter.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 30, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin
  • Patent number: 10954757
    Abstract: An illustrative domain-adaptive hydraulic fracturing simulator includes: a data acquisition module, a simulator module, and a visualization module. The data acquisition module acquires measurements of a subterranean formation undergoing a hydraulic fracturing operation. The simulator module provides a series of states for a model of the subterranean formation by: (a) constructing said model from the measurements, the model representing said current state throughout a modeled domain; (b) determining a core domain of influence within the modeled domain by identifying active fractures; (c) generating a linear set of equations to derive the subsequent state from the current state, the linear set of equations including fluid flow equations for the core domain of influence and excluding fluid flow equations for a region of the modeled domain outside the core domain of influence; and (d) deriving the subsequent state from the linear set of equations. The visualization module displays the series of states.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 23, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin
  • Publication number: 20200401739
    Abstract: A method and system for modeling a fracture in a hydraulic fracturing simulator. The method may comprise simulating a well system with an information handling system, defining a closure criteria for a hydraulic fracturing operation, assembling at least one variable in a linear system, assembling at least one variable of a contact force in the linear system, solving for the contact force, and determining at least one opening or at least one closing of the fracture with the contact force. The system may comprise a processor and a memory coupled to the processor. The memory may store a program configured to simulate a well system with an information handling system, define a closure criteria for a hydraulic fracturing operation, assemble at least one variable in a linear system, and determine at least one opening or at least one closing of the fracture with the contact force.
    Type: Application
    Filed: January 16, 2018
    Publication date: December 24, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jie Bai, Dinesh Ananda Shetty, Baidurja Ray, Jianfu Ma
  • Publication number: 20200362680
    Abstract: The disclosure is directed to a method and system that estimates the number of active fractures for a given hydraulic fracturing fluid pressure. The hydraulic fracturing pressure can be correlated to a corresponding hydraulic fracturing fluid absorption rate of downhole fractures. Using the pressure and rate correlation, an active fracture ratio can be determined and then utilized to estimate the number of active fractures at a given hydraulic fracturing fluid pressure. In other aspects, a target fluid pressure is represented by a curve or other shape corresponding to a fluid friction model so that the fluid pressure correlation to the fluid absorption rate can be utilized to compute the active fracture ratio. The disclosed system is operable to control a well site pump system to adjust the fluid pressure and fluid composition, to monitor the downhole fluid, to collect the fluid values, and to compute an estimated active fracture ratio.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 19, 2020
    Inventors: Dinesh Ananda Shetty, Vladimir Nikolayevich Martysevich, Tirumani N. Swaminathan, Jianfu Ma
  • Publication number: 20200341167
    Abstract: Selecting a fracing-plan-to-apply to optimize a complexity index includes identifying a set of controllable input variables that defines a fracing plan. Initial values for the set of controllable input variables are defined. The initial values of the set of controllable input variables are processed to produce an initial stimulated geometry. A complexity estimator is applied to the initial stimulated geometry to produce an initial complexity index, which is evaluated to identify at least one variation from the initial values, which is processed to produce a variation stimulated geometry for each of the at least one variation from the initial values. The complexity estimator is applied to the at least one variation stimulated geometry to produce a variation complexity index for each of the at least one variation from the initial values. The fracing-plan-to-apply is selected from among the initial values and the at least one variation from the initial values.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 29, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Robert Douglas Hillard, Harold Grayson Walters, Neil Alan Stegent
  • Patent number: 10689960
    Abstract: An illustrative hydraulic fracturing flow simulation system includes: a data acquisition module collecting measurements from a subterranean formation; a processing module implementing a hydraulic fracturing simulation; and a visualization module that displays a time-dependent spatial distribution. The implemented method includes: modeling a connected network of fractures; assigning an orientation to each fracture in the network to locate two different flow parameter types at each junction, thereby defining an arrangement of different flow parameter types spatially staggered along each fracture; capturing the arrangement as a set of linear equations for iteratively deriving a subsequent flow state from a current flow state; simulating flow through the network of fractures by repeatedly solving the set of linear equations; and determining the time-dependent spatial distribution of at least one flow component.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 23, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dylan Matthew Copeland, Dinesh Ananda Shetty, Avi Lin
  • Patent number: 10626706
    Abstract: In accordance with embodiments of the present disclosure, a methodology may be used to computationally simulate a system of equations relating to the junction points of a dynamic fracture network (DFN). The simulation may utilize one or more efficient algorithms to perform a realistic, physically conservative, and stable coupled simulation of the DFN's complex flows. These algorithms may use assumptions based on the transient Navier-Stokes equations to perform the proppant laden flow simulation. As described in detail below, the algorithms may utilize a numerical methodology that accurately simulates a junction system of equations arising from solving the fluid and proppant flows inside individual fractures based on Navier-Stokes equations along with a proppant transport equation.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: April 21, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin
  • Publication number: 20200072026
    Abstract: A method for performing a wellbore operation that includes generating a multiphase fluid flow model defining at least two layers comprising a first layer including a proppant-fluid mixture and a second layer including a bed of settled proppant, simulating a behavior of the bed of settled proppant in a flow path using the multiphase fluid flow model and thereby obtaining a simulation result, and performing the wellbore operation based on the simulation result.
    Type: Application
    Filed: January 10, 2017
    Publication date: March 5, 2020
    Inventors: Baidurja RAY, Dinesh Ananda SHETTY
  • Publication number: 20200026744
    Abstract: To improve efficiency for solving a system of equations, art equation solver uses variable reduction techniques to reduce a number of variables to be solved. The equation solver identifies derived variables and eliminates them from the system of equations. The equation solver considers the remaining variables to be primitive variables. The primitive variables may be rewritten into a representation of the system of equations or into a set of equations that may be used to solve for values of the primitive variables. The equation solver solves for values of the primitive variables. Prior to solving or during solving iterations, the equation solver may apply storage policies to further reduce the number of variables to be solved. The storage policies indicate parameters and techniques for eliminating primitive variables to be solved, such as primitive variables that are insignificant (i.e., have little effect on a solution for the system of equations).
    Type: Application
    Filed: November 29, 2016
    Publication date: January 23, 2020
    Inventor: Dinesh Ananda Shetty
  • Patent number: 10445446
    Abstract: In accordance with embodiments of the present disclosure, a discretization technique may be used to solve for fluid and proppant flow through a fracture within a dynamic fracture network. The discretization technique may involve performing a spatial discretization of non-linear coupled equations by integrating the equations over staggered finite control volumes. For example, the spatial discretization may involve integrating a continuity equation representing fluid flowing through the fracture over a first control volume along the length of the fracture, integrating a momentum equation representing the fluid flowing through the fracture over a second control volume that is staggered with respect to the first control volume, and integrating a proppant equation representative of the proppant flowing with the fluid through the fracture over the first control volume. The discretized equations may be used to determine a linear system of equations to simulate proppant flow through the dynamic fracture network.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: October 15, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin
  • Patent number: 10366185
    Abstract: In some aspects, locations for nodes are computed for a one-dimensional flow model that models well system fluid flow in a subterranean region. Truncation error threshold data indicate a truncation threshold value for each of the nodes. Discretization data indicate a lowest-order term truncated from a discretized governing flow equation for each of the nodes. The locations for the nodes can be computed based on a scalar cost function, such that each of the lowest order terms is less than or equal to the truncation error threshold value for the respective node.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: July 30, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Avi Lin, Dinesh Ananda Shetty
  • Patent number: 10352146
    Abstract: Present embodiments are directed to a method that includes receiving inputs indicative of a property of a fracture within a dynamic fracture network, assigning an orientation to each of the plurality of fractures, and assigning a plurality of fracture nodes and fracture cells encompassing each fracture node along the fracture. The method also includes receiving variables representative of apertures at a first fracture node and a second fracture node and determining fluid flow within the fracture cell based on Navier-Stokes equations with proppant transport, as a function of the conditions at the first fracture node and the second fracture node. The method further includes displaying a simulation representative of a flow of proppant through the fracture based on the junction conditions via a display coupled to the processing component.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 16, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin
  • Patent number: 10294765
    Abstract: Present embodiments are directed to a method that includes receiving inputs indicative of a property of a fracture present within a dynamic fracture network, assigning an orientation to each of the plurality of fractures, and receiving variables representative of the endpoints of the fracture between a first junction and a second junction of the plurality of junctions. The method also includes determining a linear system representing fluid flow within the fracture based on Navier-Stokes equations, as a function of the variables at the first junction and the second junction. The method further includes displaying a simulation representative of a fluid flow through the fracture based on the junction conditions via a display coupled to the processing component.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: May 21, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin
  • Patent number: 10241232
    Abstract: In some aspects, a number of subsystem models is accessed by a computer system. Each subsystem model represents dynamic attributes of a distinct physical subsystem in a subterranean region. At least one of the number of subsystem models represents dynamic attributes of a mechanical subsystem in the subterranean region. A discrete fracture network (DFN) model representing a fracture network in the subterranean region is accessed at the computer system. The DFN model includes junction models. Each junction model represents interactions between a respective set of subsystem models associated with the junction model. Junction variables of the junction model can be defined based on dynamic attributes of the respective set of subsystem models associated with the junction model. A stimulation treatment for the subterranean region can be simulated by operating the DFN model including the junction variables.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: March 26, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Avi Lin, Dinesh Ananda Shetty, Jie Bai, Srinath Madasu, Joshua L. Camp
  • Publication number: 20190078424
    Abstract: An illustrative hydraulic fracturing flow simulation system includes: a data acquisition module collecting measurements from a subterranean formation; a processing module implementing a hydraulic fracturing simulation; and a visualization module that displays a time-dependent spatial distribution. The implemented method includes: modeling a connected network of fractures; assigning an orientation to each fracture in the network to locate two different flow parameter types at each junction, thereby defining an arrangement of different flow parameter types spatially staggered along each fracture; capturing the arrangement as a set of linear equations for iteratively deriving a subsequent flow state from a current flow state; simulating flow through the network of fractures by repeatedly solving the set of linear equations; and determining the time-dependent spatial distribution of at least one flow component.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 14, 2019
    Inventors: Dylan Matthew Copeland, Dinesh Ananda Shetty, Avi Lin
  • Patent number: 10175372
    Abstract: Systems, methods and software can be used for processing microseismic data from a subterranean region. In some aspects, groupings of data points are identified. The data points are based on microseismic data from a subterranean region. The identification of the groupings is constrained such that each grouping includes at least a minimum number of the data points, and such that the data points in each grouping have at most a maximum extent of variation. In some instances, a histogram of the data points is generated, and each of the identified groupings corresponds to a bin in the histogram.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: January 8, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dinesh Ananda Shetty, Avi Lin