公开(公告)号：US20220065093A1

公开(公告)日：2022-03-03

申请号：US17004175

申请日：2020-08-27

Applicant: Landmark Graphics Corporation

Inventor： Manish K. Mittal ,  Robello Samuel

IPC: E21B44/08 ,  E21B47/003 ,  E21B49/00

Abstract: A system is described for calculating and outputting micro invisible lost time (MILT). The system may include a processor and a non-transitory computer-readable medium comprising instructions that are executable by the processor to cause the processor to perform various operations. Time-stamp data that includes values of drilling parameters may be received about a drilling operation, and the values of drilling parameters may be classified into a rig state that includes rig activities. For each rig activity, an actual completion time may be determined and compared to an expected completion time for determining a deviation. At least one deviated activity, in which the deviation is greater than a threshold, may be determined. Deviations may be combined into MILT that can be output for controlling the drilling operation.

公开(公告)号：US11142963B2

公开(公告)日：2021-10-12

申请号：US15770183

申请日：2015-12-16

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Oluwafemi I. Oyedokun ,  Robello Samuel ,  Gareth M. Braund

IPC: E21B17/20 ,  E21B7/06 ,  E21B44/00

Abstract: System and methods for optimizing coiled tubing string configurations for drilling a wellbore are provided. A length of a rotatable segment of a coiled tubing string having rotatable and non-rotatable segments is estimated based on the physical properties of the rotatable segment. A friction factor for the rotatable segment is calculated based on the estimated length. An effective axial force for one or more points of interest along the non-rotatable and rotatable string segments is calculated, based in part on the friction factor. Upon determining that the effective axial force for at least one point of interest exceeds a predetermined maximum force threshold, an effective distributive friction factor is estimated for at least a portion of the non-rotatable segment of the string. The rotatable and non-rotatable string segments are redefined for one or more sections of the wellbore along a planned trajectory, based on the effective distributive friction factor.

公开(公告)号：US11015424B2

公开(公告)日：2021-05-25

申请号：US15779496

申请日：2015-12-30

Applicant: Landmark Graphics Corporation

Inventor： Robello Samuel ,  Umesh N. Reddy ,  Krishna Chaitanya Nunna ,  Paola Alejandra Perez Pena

IPC: G06G7/48 ,  E21B44/00 ,  E21B47/024 ,  E21B7/04 ,  G05B19/042 ,  E21B49/00

Abstract: Systems and methods for automated planning and/or control of a drilling operation are implemented to be based at least in part on automated prediction of well performance using an analytical well performance model. Substantially real-time determination of one or more drilling parameters and/or well trajectory parameters is based on measurements received from a drill tool together with the well performance model. The described techniques thus provide for automated, analytically determined well performance measures (e.g., well productivity and/or revenue) to a geosteering process. The well performance model accounts for variations of well trajectory both in inclination and in azimuth angle.

公开(公告)号：US10968732B2

公开(公告)日：2021-04-06

申请号：US15753405

申请日：2015-10-09

Applicant: Landmark Graphics Corporation

Inventor： Robello Samuel

IPC: E21B47/06 ,  E21B47/007 ,  E21B47/07 ,  G01M5/00 ,  E21B47/18

Abstract: Tubular elasticity is applied to determine tubular wear volume. In general, a torque and drag model is applied to calculate the dynamic stretch of the inner tubular string (e.g., drill string). The dynamic stretch is then integrated into a casing wear model to improve the accuracy of the calculated wear and its corresponding position along the outer tubular string (e.g., casing string).

公开(公告)号：US10801314B2

公开(公告)日：2020-10-13

申请号：US15565411

申请日：2016-12-20

Applicant: Landmark Graphics Corporation

Inventor： Robello Samuel ,  Zhengchun Liu ,  Jeffrey Marc Yarus ,  Jin Fei

IPC: E21B44/02 ,  E21B47/022 ,  E21B7/04 ,  G06F19/00

Abstract: A method may include drilling a deviated wellbore penetrating a subterranean formation according to bottom hole assembly parameters and surface parameters; collecting real-time formation data during drilling; updating a model of the subterranean formation based on the real-time formation data and deriving formation properties therefrom; collecting survey data corresponding to a location of a drill bit in the subterranean formation; deriving a target well path for the drilling based on the model of the subterranean formation; deriving a series of trajectory well paths based on the formation properties, the survey data, the bottom hole assembly parameters, and the surface parameters and uncertainties associated therewith; deriving an actual well path based on the series of trajectory well paths; deriving a deviation between the target well path and the actual well path; and adjusting the bottom hole assembly parameters and the surface parameters to maintain the deviation below a threshold.

公开(公告)号：US10664633B2

公开(公告)日：2020-05-26

申请号：US15285551

申请日：2016-10-05

Applicant: Landmark Graphics Corporation

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

IPC: G06F30/20 ,  E21B47/00 ,  E21B33/12 ,  E21B41/00 ,  E21B43/16 ,  E21B43/26

Abstract: A system provides thermal and stress analysis of complex well operations above the end of the downhole string to meet the analysis needs of downhole operations such as hydraulic fracturing in unconventional oil and gas field development.

公开(公告)号：US10570703B2

公开(公告)日：2020-02-25

申请号：US15109408

申请日：2014-12-31

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Aniket Aniket

IPC: G06G7/48 ,  E21B41/00 ,  E21B12/02 ,  E21B3/00 ,  E21B47/00 ,  G06F17/50

Abstract: System and methods for monitoring casing wear for a well during a drilling operation are provided. Casing design parameters for a planned well are determined during a planning phase of the drilling operation. A wear factor along a length of the planned well is computed based on the casing design parameters. A casing wear map is generated based on the computed wear factor along the length of the planned well relative to one or more of the casing design parameters. The generated casing wear map is visualized via a display of a computing device. The visualized casing wear map enables a user of the computing device to estimate casing wear for the planned well and determine an appropriate casing design for the planned well based on the estimated casing wear.

公开(公告)号：US10558765B2

公开(公告)日：2020-02-11

申请号：US15035482

申请日：2013-11-27

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Xiaoqian Huang

IPC: G06G7/48 ,  G06F17/50 ,  E21B41/00 ,  E21B21/00

Abstract: In one embodiment, the invention provides a computer implemented method for determining underbalanced drilling conditions. The method may include determining the number of tool joints in a segment of drill string, where each tool joint has a length and an inner diameter and an outer diameter, determining the total length of all tool joints in a segment of drill string, determining the total length of the segment of drill string excluding the tool length of all tool joints in the segment of drill string, wherein the drill string has an inner diameter and an outer diameter, determining the inner diameter of a segment of wellbore encompassing a segment of drill string, and determining a pressure drop in the segment of wellbore, based on the total length of all tool joints in the segment of drill string.

公开(公告)号：US20180122102A1

公开(公告)日：2018-05-03

申请号：US14902287

申请日：2015-01-05

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： DeWayne Pratt ,  Richard Daniel Colvin ,  Robello Samuel

IPC: G06T11/00 ,  G06T7/11 ,  E21B43/30

CPC classification number: G06T11/001 ,  E21B43/305 ,  G06T7/11

Abstract: Systems and methods for creating platform positioning maps representing surface pad location feasibility for visually validating a current surface pad location and/or determining the suitability of another surface pad location.

公开(公告)号：US09932813B2

公开(公告)日：2018-04-03

申请号：US14765831

申请日：2013-02-27

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Nadeem A. Haq ,  Gustavo A. Urdaneta ,  Robello Samuel

IPC: E21B3/00 ,  E21B44/00 ,  E21B47/00

CPC classification number: E21B47/00 ,  E21B3/00 ,  E21B44/00

Abstract: Calibrating Friction Factors. At least some of the illustrative embodiments are methods including: calibrating friction factor for a drilling operation by: plotting on a display device the expected hook load versus depth for the drilling operation; displaying plot points on the display device, each plot point indicative of a measured hook load versus depth for the drilling operation; selecting a plot point associated with a depth, the selecting responsive to a cursor hovering over the plot point on the display device; displaying a friction factor values which correlates the expected hook load versus depth for the particular depth to the measured hook load versus depth for the plot point, selecting the value responsive to the cursor hovering over the value; and then shifting on the display device at least a portion of the indication of expected hook load versus depth based on the value of friction factor.