Patents Assigned to Landmark Graphics Corporation
  • Patent number: 10352134
    Abstract: Oil or gas fields and associated facilities are computer simulated by solving linear algebraic equations using a Schwarz method with at least one well node included in the overlap. According to another aspect, equations for the wellbore nodes are processed to eliminate some non-pressure variables, e.g. component compositions. Other features are also provided.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: July 16, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Qinghua Wang, Graham Christopher Fleming, Qin Lu
  • Patent number: 10354207
    Abstract: Systems and methods for optimization of real time production operations. In one embodiment, a moving time horizon based parametric model provides fast predictions for production optimization in a short-term framework. In another embodiment, multiple technologies are selected in connection with asset performance workflows that are uniquely implemented in a multi-phase approach.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: July 16, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Gerardo Mijares, Alejandro Garcia, Sathish Sankaran, Jose Rodriguez, Luigi Saputelli, Ankur Awasthi, Michael Nikolaou
  • Patent number: 10352148
    Abstract: An illustrative method for estimating casing wear, including estimating, as a function of position along a casing string, a side force of a tubular string against the casing string, wherein said estimating accounts for a bending stiffness of the tubular string. The method further including determining, based at least in part on the side force, a casing string wear volume as a function of position along the casing string, and presenting the casing string wear volume to a user.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: July 16, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Robello Samuel, . Aniket
  • Patent number: 10353097
    Abstract: Method and system for 3-D imaging of subterranean geologic structures based on seismic data interpretations involves correcting mis-ties that arise as a result of orthogonal polylines failing to intersect due to inconsistencies in seismic interpretations. In some embodiments, the mis-ties may be corrected by adding a data point from one polyline at or near the mis-tie to the other polyline, and vice versa for the other polyline. The two data points are then adjusted so they coincide or merge. The merged data point is then used as intersection points for the polylines and associated with one another such that a change made to one intersection point is automatically made to the other intersection point. In some embodiments, one or more neighboring data points on each polyline are adjusted to smooth out the polyline at the point of the corrected mis-tie.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: July 16, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Nam X. Nguyen, Scott D. Senften, Mary J. Cole
  • Publication number: 20190213233
    Abstract: A method for determining active constraint equations in a network of wells and surface facilities includes constructing at least one constraint equation for a connection in the network. Each constraint equation includes a respective slack variable and a respective slack variable multiplier. The method further includes constructing a base equation for the connection. The base equation includes the respective slack variable and another respective slack variable multiplier. The method further includes introducing a pseudo slack variable for another connection in the network such that a Schur complement, of a matrix of constraint and base equations dependent only on slack variable multipliers, is sparse. The method further includes solving for each respective slack variable using the Shur complement matrix. The method further includes adjusting a variable parameter of the network using results from solving for each respective slack variable.
    Type: Application
    Filed: November 4, 2016
    Publication date: July 11, 2019
    Applicant: Landmark Graphics Corporation
    Inventors: Qinghua Wang, Graham Christopher Fleming
  • Publication number: 20190211651
    Abstract: A method of managing a network of wells and surface facilities includes partitioning the network to obtain a pipe sub-network and two or more well sub-networks, and constructing an associated set of equations that represent a steady-state fluid flow in the sub-network. The method further includes setting boundary conditions for each well sub-network, and determining a steady-state flow solution for each well sub-network. The method further includes establishing boundary conditions for the pipe sub-network, and finding a steady-state flow solution for the pipe sub-network. If the solution does not match the estimated pressure, the method further includes adjusting the estimated pressure, repeating said setting, determining, establishing, finding, and adjusting operations until the calculated and estimated pressures converge, and analyzing flow rates of the steady-state flow solutions to evaluate suitability of a modification to the network.
    Type: Application
    Filed: November 4, 2016
    Publication date: July 11, 2019
    Applicant: Landmark Graphics Corporation
    Inventors: Graham Christopher FLEMING, Jie MA
  • Patent number: 10344591
    Abstract: A computer implemented method can include selecting a first flow rate model for a well, providing reservoir data to the first flow rate model, providing production history data to the first flow rate model, computing a solution to the first flow rate model and comparing the solution to production history data. A method can include implementing dual, triple or quad porosity models of a reservoir and history matching a model against actual well production data. A method can include comparing one or more models and determining whether a parameter has a unique solution. A system can include a computer readable medium having instructions stored thereon that, when executed by a processor, cause the processor to perform one or more methods.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: July 9, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Timothy R. McNealy, Mohammadreza Ghasemi
  • Patent number: 10345482
    Abstract: In various examples, a method includes storing one or more data structures on a storage device, the one or more data structures identifying a plurality of faults in a geographical formation and a plurality of fault blocks on either side of the plurality of faults in the geographic formation; for each pair of faults blocks on opposite sides of a fault identified in the one or more data structures: determining, using at least one processor, a fault polygon of a respective pair of fault blocks with respect to a fault of the plurality of faults; and calculating a matching factor between the respective pair of fault blocks based on the fault polygon; selecting a pair of fault blocks to merge based on the calculated matching factor; and updating the one or more data structures to indicate the selected pair of fault blocks has been merged.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: July 9, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Zitao Xu, Genbao Shi, Chikang David Chien, Jeffrey Yarus, Richard L. Chambers
  • Patent number: 10344535
    Abstract: The disclosed embodiments include a method, apparatus, and computer program product for improving well production using a regression relationship approach. For example, one disclosed embodiment includes a system that includes at least one processor and at least one memory coupled to the at least one processor and storing instructions that when executed by the at least one processor performs operations for analyzing a first set of data from at least one previously drilled well to predict fracture orientation for determining a drilling angle to optimize drilling of a new well by increasing fracture density along the new wellbore.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: July 9, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Rae Mohan Srivastava, Jeffrey Marc Yarus
  • Patent number: 10337307
    Abstract: Systems and methods for determining an optimal acid placement design for a production well near an aquifer are provided. An optimal acid placement that is determined accounts for the drawdown from heel to toe of the production well and reservoir heterogeneity to thereby address the issue of water breakthrough from the nearby aquifer and improve hydrocarbon recovery.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: July 2, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Andrey Filippov, Vitaly Anatolievich Khoriakov
  • Patent number: 10332219
    Abstract: Systems and methods for determining the optimum number of platforms to be used in a hydrocarbon field development and their position. The systems and methods determine the least valuable platform(s) and eliminate them from use in the hydrocarbon field development.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: June 25, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Dan Colvin, Gary Schottle
  • Patent number: 10331093
    Abstract: Systems and methods for determining operating settings for a fluid production system that includes wells and a processing facility, the method including identifying at least one swing well and one or more non-swing wells and determining at least one target parameter equation that is a function of at least one processing facility constraint and one or more non-swing well parameters. The method further includes incorporating the target parameter equation into a fully-coupled equation set representing the production system, simulating the production system using the fully-coupled equation set to obtain one or more operating settings that meet the processing facility constraint, and presenting to a user the operating settings.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: June 25, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Graham Christopher Fleming, Qin Lu
  • Patent number: 10324228
    Abstract: The disclosed embodiments include a method, apparatus, and computer program product for performing gridless simulation of a fluvio-deltaic environment. For example, one disclosed embodiment includes a system that includes at least one processor, and at least one memory coupled to the at least one processor and storing instructions that when executed by the at least one processor performs operations that include generating a set of channel centerlines corresponding to a set of channels that are indicative of flow units in a fluvio-deltaic environment; and generating channel widths for each of the channel centerlines. In one embodiment, the operations for generating the set of channel centerlines of the reservoir include selecting a seed point for each channel, assigning each seed point a direction of propagation, and iteratively generating each channel.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: June 18, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Jeffrey Marc Yarus, Rae Mohan Srivastava, Marko Maucec
  • Patent number: 10325330
    Abstract: Systems and methods facilitate and automate well abandonment procedures. In an embodiment, well field data for a plurality of wells is categorized into well types. An inspection set of wells, including wells of each type, is determined from the entire plurality of wells. Inspection data is collected for each well type, including environmental, regulatory, and well condition data. The inspection data is extrapolated onto wells with similar types for the entire filed and analyzed. The analysis may include determining an optimal sequence of well abandonment activities, and an estimate of costs for abandoning each well, all wells of each type, and the entire well field. In an embodiment, a risk assessment analysis is performed and may include an analysis of factors that may change the cost of abandoning the well field or a sequence of well abandonment activities.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 18, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Caty LaVonne Hein, Darrin Seulakhan, Bridget Morgan Lawrence, Robert Milton Hull
  • Patent number: 10319140
    Abstract: A consecutive set of data points, P1, P2, P3, and P4, is selected. A first line is created through P1 and P3. A first tangent vector originating at P2, parallel to the first line, is created. A second line through P2 and P4 is created. A second tangent vector through P3 is created. The second tangent vector is parallel to the second line. A baseline through P2 and P3 is created. A Bezier curve between P2 and P3 is created, wherein the Bezier curve has a degree. The degree of the Bezier curve is determined based on a comparison of the first tangent vector, the second tangent vector, and the baseline.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: June 11, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Zitao Xu, Genbao Shi, Andres Cesar Callegari, ChiKang David Chien, Jeffrey Marc Yarus
  • Patent number: 10318662
    Abstract: Systems and methods for horizontal well correlation and geosteering, which include using a correlated 2D model and updated 3D model to determine target lines from the end of a horizontal section of the wellbore to a target point in the formation.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: June 11, 2019
    Assignee: Landmark Graphics Corporation
    Inventors: Richard J Lagenwalter, Fred B. Poland, Tom C. Daffin
  • Patent number: 10310139
    Abstract: A system and method inserts fracture networks into an existing Earth Model that exists as a structured grid and physical property values. The fracture network is in the form of a surface mesh (manifold or non-manifold) in a three-dimensional (ā€œ3Dā€) space. The structured grid of the Earth Model is then anisotropically refined to resolve the fractures and to provide appropriate cell grading in the near-fracture region. The generated Earth Model may be utilized in a variety of applications, including for example, a reservoir simulation.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 4, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Michael L. Brewer, Steven B. Ward
  • Patent number: 10302526
    Abstract: Systems and methods for determining stresses in pipe under non-uniform exterior loads to test the pipe design for structural integrity by approximating non-uniform exterior loads on the pipe and performing a stress analysis of the pipe under the non-uniform exterior loading to determine the stresses in the pipe.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: May 28, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventor: Robert Franklin Mitchell
  • Patent number: 10294770
    Abstract: Systems and methods for automated workflow capture in a drilling application are provided. The interactions between a user and the drilling application are automatically tracked via a graphical user interface (GUI) of the drilling application executable at a computing device. The tracked interactions are based in part on input received from the user via the GUI with respect to a user-initiated operation related to an activity at a well site. Data for the workflow is captured based on the tracked interactions. The captured workflow data is stored in a memory of the computing device.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 21, 2019
    Assignee: LANDMARK GRAPHICS CORPORATION
    Inventors: Florin M. Anghelescu, David Crawshay
  • Patent number: 10295684
    Abstract: Systems and methods for constructing clean stratigraphic seismic traces to enhance interpretation of geological faults using diagnostic displays, diagnostic tools, and fault quality validation techniques.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 21, 2019
    Assignee: Landmark Graphics Corporation
    Inventor: Kees W Rutten