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    BRITTLE-BURST STRENGTH FOR WELL SYSTEM TUBULAR INTEGRITY
    13.
    发明公开
    BRITTLE-BURST STRENGTH FOR WELL SYSTEM TUBULAR INTEGRITY 审中-公开

    公开(公告)号：US20240133288A1

    公开(公告)日：2024-04-25

    申请号：US17970862

    申请日：2022-10-20

    Applicant: Landmark Graphics Corporation

    Inventor： Zhengchun Michael Liu ,  Robello Samuel ,  Adolfo Gonzales ,  Yongfeng Kang

    IPC: E21B47/007

    CPC classification number: E21B47/007

    Abstract: A system can receive data relating to a tubular of a well system. The system can execute a first module to determine first outputs. The system can execute a second module to determine second outputs based on the first outputs. The system can execute a third module to determine third outputs based on the first outputs. The second outputs can include a crack-initiation fracture pressure, and the third outputs can include a crack-propagation fracture pressure. The system can identify a brittle-burst strength of the tubular from among the second outputs, the third outputs, and a standard burst strength of the tubular. The system can provide the brittle-burst strength of the tubular to facilitate an adjustment to the tubular to optimize a wellbore operation associated with the well system.

    SLIDE AND ROTATION PROJECTION FOR REDUCING FRICTION WHILE DRILLING
    14.
    发明申请
    SLIDE AND ROTATION PROJECTION FOR REDUCING FRICTION WHILE DRILLING 有权

    公开(公告)号：US20220298911A1

    公开(公告)日：2022-09-22

    申请号：US17618650

    申请日：2020-02-07

    Applicant: Landmark Graphics Corporation

    Inventor： Rishi Adari ,  Adolfo Gonzales ,  Samuel Robello

    IPC: E21B44/04 ,  E21B4/02 ,  E21B7/06 ,  E21B47/00

    Abstract: This disclosure relates to systems and methods for controlling a motor based on a slide-rotate ratio while drilling a wellbore. The system includes at least one sensor disposable with respect to a drillstring and a motor communicatively coupled to the drillstring. A computing device performs operations for controlling the motor based on the slide-rotate ratio. The computing receives input data corresponding to characteristics of the drillstring, the motor, or both. The computing device calculates a hook load for multiple time intervals. The computing device determines a friction factor based on the hook load for each of the time intervals. The computing device projects a slide-rotate ratio for the motor that substantially minimizes friction while operating the drill string, and controls the motor based on the slide-rotate ratio.

    INTEGRATED THERMAL AND STRESS ANALYSIS FOR A MULTIPLE TUBING COMPLETION WELL
    16.
    发明申请
    INTEGRATED THERMAL AND STRESS ANALYSIS FOR A MULTIPLE TUBING COMPLETION WELL 有权

    公开(公告)号：US20220178243A1

    公开(公告)日：2022-06-09

    申请号：US17594826

    申请日：2020-05-19

    Applicant: Landmark Graphics Corporation

    Inventor： Yongfeng Kang ,  Adolfo Gonzales ,  Robello Samuel ,  Zhengchun Liu ,  Jun Jiang ,  Max O. Duncan

    IPC: E21B47/007 ,  E21B47/07

    Abstract: A well operation simulator predicts temperature and pressure profiles of a multi-tubing completion well for well design. The simulator is comprised of modules, which when executed, determine a first set of design limits based on stress conditions arising from the temperature and pressure profiles from a multi-tubing drilling module and a multi -tubing production module for drilling and production operations. A multi-tubing multi-string module predicts the annular fluid expansion (AFE) and annular pressure buildup (APB) of the multi-tubing well from the previously calculated temperature profile, pressure profile, and stress conditions and determines a second set of design limits with the AFE/APB effects in addition to the temperature profile and pressure profile predicted from multi-tubing drilling module and multi-tubing production module. The first and second sets of design limits are depicted using one or

    DETERMINING DAMAGE TO A CASING STRING IN A WELLBORE
    18.
    发明申请
    DETERMINING DAMAGE TO A CASING STRING IN A WELLBORE 审中-公开

    公开(公告)号：US20180073347A1

    公开(公告)日：2018-03-15

    申请号：US15266444

    申请日：2016-09-15

    Applicant: Landmark Graphics Corporation

    Inventor： . Aniket ,  Adolfo Gonzales ,  Robello Samuel ,  Robert D. Gilcrist

    IPC: E21B47/00 ,  E21B17/00 ,  G06F17/50

    CPC classification number: E21B47/0006 ,  E21B17/00 ,  G06F17/5018

    Abstract: Damage to a casing string in a wellbore resulting from a wellbore operation can be predicted. For example, a stiff string model can be used to determine a contact point between the casing string and a well tool positionable within the casing string for performing the wellbore operation. The stiff string model can be used to determine a force of the well tool against the casing string at the contact point. The force can be used to determine a volume of damage to the casing string proximate to the contact point. A depth of a groove formed in the casing string proximate to the contact point can be determined based on the volume of damage.

    Systems and methods for borehole tubular design
    19.
    发明授权
    Systems and methods for borehole tubular design 有权

    公开(公告)号：US11982158B2

    公开(公告)日：2024-05-14

    申请号：US17258539

    申请日：2020-03-24

    Applicant: Landmark Graphics Corporation

    Inventor： Zhengchun Liu ,  Robello Samuel ,  Adolfo Gonzales ,  Yongfeng Kang

    IPC: G06F30/17 ,  E21B41/00 ,  E21B17/00

    CPC classification number: E21B41/00 ,  G06F30/17 ,  E21B17/00

    Abstract: A method for designing a borehole tubular for use in a borehole. The method may include defining tubular sections that make up the borehole tubular, defining a downhole operation that will be conducted using the borehole tubular at a first timestamp, determining loads that will be applied to each of the tubular sections at respective specific depths along the borehole during the downhole operation at the first timestamp, determining a design limit envelope for each of the tubular sections at the first timestamp based on design parameters of the tubular section and the specific depth of the tubular section at the first timestamp, and displaying a three-dimensional (3D) plot of the design limit envelopes of the tubular sections and the loads applied to the tubular sections as a function of depth within the borehole on a display.

    SCORING A FINAL RISK FOR IDENTIFIED BOREHOLE DESIGN CONCEPTS
    20.
    发明公开
    SCORING A FINAL RISK FOR IDENTIFIED BOREHOLE DESIGN CONCEPTS 审中-公开

    公开(公告)号：US20230193725A1

    公开(公告)日：2023-06-22

    申请号：US17553219

    申请日：2021-12-16

    Applicant: Landmark Graphics Corporation

    Inventor： Margareth Gibbons Parra ,  Adolfo Gonzales ,  Nitish Damodar Chaudhari ,  Gabriel Tirado

    IPC: E21B41/00 ,  G06F30/27 ,  E21B47/12

    CPC classification number: E21B41/00 ,  G06F30/27 ,  E21B47/12 ,  E21B2200/22

    Abstract: The disclosure presents processes for evaluating a borehole design against one or more identified risks. The processes can determine borehole design concepts for the borehole design. Each borehole design concept can have multiple risks assigned, which can be selected from a library of risks, a risk matrix or template, a risk model, or user entered risks. The risks can be scored using one or more statistics-based algorithms, such as a sum, an average, a mean, or other algorithms. The risks can be grouped by a risk level, forming a sub-risk score for each risk level for each borehole design concept. A final risk score can be generated using the sub-risk scores for the borehole design. More than one borehole design can be evaluated using a risk tolerance parameter and the borehole design that satisfies the risk tolerance parameter can be selected as the recommended borehole design.

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