公开(公告)号：US20220229942A1

公开(公告)日：2022-07-21

申请号：US17152300

申请日：2021-01-19

Applicant: Landmark Graphics Corporation

Inventor： Zhengchun Liu ,  Robello Samuel ,  Adolfo Gonzales ,  Yongfeng Kang ,  Jenny Z. Xie

IPC: G06F30/10 ,  E21B47/007 ,  E21B47/08

Abstract: The disclosure presents processes for improving the design phase of tubular structures to be used downhole in a borehole. A hybrid collapse strength model can be utilized that uses a linear collapse strength model for an initial percentage range based on the initial wall thickness of the tubular structure. A standards collapse strength model can be used once a wall thickness threshold is not satisfied. In some aspects, a transition collapse strength model can be used prior to the standards collapse strength model to avoid discontinuities in the analysis. The hybrid collapse strength model can enable more efficient use of tubular structures, designing a longer operational lifetime, or the use of thinner structures while maintaining a satisfactory operational lifetime. Lower operational costs of the borehole can be achieved through using less expensive tubular structures and through a reduction of costs associated with replacing a section of casing within the borehole.

公开(公告)号：US20220205353A1

公开(公告)日：2022-06-30

申请号：US17606228

申请日：2019-05-16

Applicant: Landmark Graphics Corporation

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

IPC: E21B47/00

Abstract: A method for assessing an integrity of metal tubular structures may comprise receiving one or more inputs, applying an algorithm to automatically select an appropriate model for a given corrosion scenario, applying a combined model including semi-empirical and multiphase flow corrosion characteristics to the one or more inputs, determining one or more corrosion parameters of either an internal pipe wall, an external pipe surface, or both, applying a corrosion correlation value to the one or more corrosion parameters to produce one or more correlated corrosion parameters, and storing the one or more correlated corrosion parameters on a computer readable medium. A system may comprise an information handling system which may comprise at least one memory operable to store computer-executable instructions, at least one communications interface to access the at least one memory, and at least one processor.

公开(公告)号：US20220136370A1

公开(公告)日：2022-05-05

申请号：US17258539

申请日：2020-03-24

Applicant: Landmark Graphics Corporation

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

IPC: E21B41/00 ,  G06F30/17

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.

公开(公告)号：US11199083B2

公开(公告)日：2021-12-14

申请号：US16607528

申请日：2017-06-16

Applicant: Landmark Graphics Corporation

Inventor： Aniket Aniket ,  Adolfo Gonzales

IPC: E21B47/00 ,  E21B41/00 ,  G06F30/20

Abstract: A method for determining casing wear of casing in a wellbore, a computer program product for determining a back-calculated casing wear factor (CWF) value for casing in a wellbore, and a well site controller are provided herein. In one embodiment, the well site controller includes: (1) an interface configured to receive actual remaining wall thickness (RWT) values that correspond to a set of casing depth values of a wellbore and (2) a processor configured to determine a back-calculated casing wear factor (CWF) value for the wellbore based on a comparison between the actual RWT value and an estimated RWT value, for the set of casing depth values, where the estimated RWT value is calculated using an estimated CWF value as input.

公开(公告)号：US10423731B2

公开(公告)日：2019-09-24

申请号：US14902242

申请日：2015-05-07

Applicant: Landmark Graphics Corporation

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

IPC: G06F17/50 ,  E21B41/00 ,  G06F17/11 ,  E21B34/06

Abstract: A method for simulating the effects of rupture disk failure on annular fluid expansion in sealed and open annuli to mitigate annular pressure buildup in a wellbore comprises the steps of: determining whether an internal region or an external region for a pair of casing string annuli is open; and calculating at least one of an adjusted internal annular pressure buildup and an adjusted external annular pressure buildup for at least one of the internal annular region and the external annular region of the casing string annuli.

公开(公告)号：US09745844B2

公开(公告)日：2017-08-29

申请号：US15027172

申请日：2015-06-12

Applicant: Landmark Graphics Corporation

Inventor： Aniket ,  Adolfo Gonzales ,  Robello Samuel

IPC: E21B47/00 ,  E21B12/02 ,  E21B41/00

CPC classification number: E21B47/0006 ,  E21B12/02 ,  E21B41/0092 ,  E21B47/00

Abstract: Estimating casing wear for individual portions or lengths of a casing may take into account that individual drill string sections cause different amounts of casing wear based on the physical and material properties of each drill string section. In some instances, a method performed during a drilling operation may involve tracking a location of the plurality of drill string sections along the wellbore; corresponding a casing section with the drill string wear factors of the drill string sections radially proximate to the casing section the drilling intervals of the drilling operations; and calculating a drilling casing wear for the casing section based on the drill string wear factors corresponding to the casing section.

公开(公告)号：US12180832B2

公开(公告)日：2024-12-31

申请号：US17618650

申请日：2020-02-07

Applicant: Landmark Graphics Corporation

Inventor： Rishi Adari ,  Adolfo Gonzales ,  Samuel Robello

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

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.

公开(公告)号：US12060787B2

公开(公告)日：2024-08-13

申请号：US17426551

申请日：2019-03-05

Applicant: LANDMARK GRAPHICS CORPORATION

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

IPC: E21B47/007 ,  E21B7/04 ,  E21B47/06 ,  E21B47/07

CPC classification number: E21B47/007 ,  E21B7/04 ,  E21B47/06 ,  E21B47/07 ,  E21B2200/20

Abstract: Systems, methods, and computer-readable media for an integrated and comprehensive hydraulic, environmental, and mechanical tubular design analysis workflow and simulator for complex well trajectories. An example method can include obtaining data defining a configuration of a wellbore having a complex well trajectory, one or more operations to be performed at the wellbore, and one or more loads associated with the wellbore; calculating environmental conditions associated with a set of wellbore components along the complex well trajectory based on the data defining the configuration of the wellbore, the one or more operations, and the one or more loads; calculating stress conditions associated with the set of wellbore components based on the environmental conditions and the data defining the configuration of the wellbore, the one or more operations, and the one or more loads; and presenting the environmental conditions and the stress conditions via a graphical user interface.

公开(公告)号：US11933135B2

公开(公告)日：2024-03-19

申请号：US17620334

申请日：2020-01-14

Applicant: Landmark Graphics Corporation

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

IPC: E21B43/16 ,  E21B33/14 ,  E21B41/00

CPC classification number: E21B33/14 ,  E21B41/00

Abstract: A method for determining annular fluid expansion (“AFE”) within a borehole with a sealed casing string annulus. The method may include defining a configuration of the borehole. The method may further include defining a production operation and a borehole operation. The method may also include determining AFE within the borehole when performing the production operation. The method may further include determining AFE within the borehole when performing the borehole operation based on the AFE within the borehole when performing the production operation.

公开(公告)号：US11755792B2

公开(公告)日：2023-09-12

申请号：US17152335

申请日：2021-01-19

Applicant: Landmark Graphics Corporation

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

IPC: G06F30/20 ,  E21B17/00 ,  G06F119/14 ,  G06F119/08

CPC classification number: G06F30/20 ,  E21B17/00 ,  E21B2200/20 ,  G06F2119/08 ,  G06F2119/14

Abstract: The disclosure presents processes for improving the design phase of plastic material lined tubular structures used downhole of a borehole. A plastic material lined tubular structure model is utilized for tubular structures that have a metal layer, a grout layer, and a plastic material layer. The model can use a modified wall thickness for the metal layer. A strength model can be applied to the modified critical dimensions, e.g., wall thickness parameters. A thermal model can be applied to the tubular structure to determine pressure and temperature parameters. The strength model and the thermal model outputs can be utilized by a stress analyzer to determine loads, safety factors, and design limit parameters. The plastic material lined tubular structure model can enable more efficient use of tubular structures, designing a longer operational lifetime, such as in acidic environments, or the use of thinner structures while maintaining a satisfactory operational lifetime.