公开(公告)号：US10428639B2

公开(公告)日：2019-10-01

申请号：US15266444

申请日：2016-09-15

Applicant: Landmark Graphics Corporation

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

IPC: G06G7/48 ,  E21B47/00 ,  E21B17/00 ,  G06F17/50

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.

公开(公告)号：US09835021B2

公开(公告)日：2017-12-05

申请号：US15028625

申请日：2013-10-28

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Aniket ,  Gustavo A. Urdaneta

IPC: E21B44/02 ,  E21B47/024 ,  E21B47/08 ,  E21B44/04 ,  E21B47/16 ,  E21B47/12 ,  E21B47/18 ,  E21B45/00 ,  E21B41/00 ,  E21B21/08

CPC classification number: E21B44/02 ,  E21B21/08 ,  E21B41/0092 ,  E21B44/04 ,  E21B45/00 ,  E21B47/024 ,  E21B47/08 ,  E21B47/12 ,  E21B47/16 ,  E21B47/18

Abstract: Drilling system and methods may employ a weight-on-bit optimization for an existing drilling mode and, upon transitioning to a different drilling mode, determine an initial weight-on-bit within a range derived from: a sinusoidal buckling ratio, a helical buckling ratio, and the weight-on-bit value for the prior drilling mode. The sinusoidal buckling ratio is the ratio of a minimum weight-on-bit to induce sinusoidal buckling in a sliding mode to a minimum weight-on-bit to induce sinusoidal buckling in a rotating mode, and the helical buckling ratio is the ratio of a minimum weight-on-bit to induce helical buckling in the sliding mode to a minimum weight-on-bit to induce helical buckling in the rotating mode. The ratios are a function of the length of the drill string and hence vary with the position of the drill bit along the borehole.

公开(公告)号：US09528364B2

公开(公告)日：2016-12-27

申请号：US14029271

申请日：2013-09-17

Applicant: Landmark Graphics Corporation

Inventor： Robello Samuel ,  Aniket

IPC: E21B47/00

CPC classification number: E21B47/00

Abstract: Systems and methods for well integrity management in all phases of development using a coupled engineering analysis to calculate a safety factor, based on actual and/or average values of various well integrity parameters from continuous real-time monitoring, which is compared to a respective threshold limit.

Abstract translation: 使用耦合工程分析，根据来自连续实时监测的各种井完整性参数的实际值和/或平均值来计算安全系数，在开发的所有阶段进行井完整性管理的系统和方法，其与各自的阈值进行比较 限制。

公开(公告)号：US10678966B2

公开(公告)日：2020-06-09

申请号：US15311980

申请日：2015-07-28

Applicant: Landmark Graphics Corporation

Inventor： Robello Samuel ,  Manish Kumar Mittal ,  Aniket

IPC: E21B12/02 ,  E21B17/00 ,  E21B44/06 ,  E21B17/02 ,  G06F30/20 ,  E21B41/00 ,  E21B47/00 ,  G05B17/02 ,  G06F17/13

Abstract: Predicting casing wear, riser wear, and friction factors in drilling operations may be achieved with data-driven models that use discrete inversion techniques to updated casing wear models, riser wear models, and/or friction factor models. For example, a method may applying a linear inversion technique or a nonlinear inversion technique to one or more parameters of at least one of a casing wear model, a riser wear model, or a friction factor model using historical data from a previously drilled well as input data to produce at least one of an updated casing wear model, an updated riser wear model, or an updated friction factor model, respectively; and implementing the at least one of the updated casing wear model, the updated riser wear model, or the updated friction factor model when designing and/or performing a drilling operation.

公开(公告)号：US09752388B2

公开(公告)日：2017-09-05

申请号：US14917398

申请日：2015-06-12

Applicant: Landmark Graphics Corporation

Inventor： Aniket ,  Adolfo Gonzales ,  Robello Samuel

IPC: E21B12/02 ,  E21B49/00 ,  G06F17/50 ,  E21B41/00

CPC classification number: E21B12/02 ,  E21B41/0092 ,  E21B47/00 ,  G06F17/5009 ,  G06F2217/16

Abstract: Estimating casing wear during a reciprocation portion of a drilling operation may take into account the forces that cause casing wear during the up and down strokes independently. For example, during a drilling operation, a method may include reciprocating the drill string through the wellbore for a plurality of up strokes and a plurality of down strokes according to reciprocation parameters; calculating an up stroke normal force and a down stroke normal force for the casing or a section thereof; calculating up and down stroke casing wears based on the up and down stroke normal forces, respectively, using a reciprocation casing wear model; calculating a reciprocation casing wear based on the up and down stroke casing wears; and calculating a total casing wear for the casing or the section thereof based on the reciprocation casing wear using a total casing wear model.

公开(公告)号：US20170191359A1

公开(公告)日：2017-07-06

申请号：US15313502

申请日：2014-08-21

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Serkan Dursun ,  Robello Samuel ,  Aniket

IPC: E21B44/06 ,  E21B47/06 ,  G01V99/00 ,  E21B45/00 ,  E21B7/04 ,  E21B49/00 ,  E21B44/04 ,  E21B21/08

CPC classification number: E21B44/06 ,  E21B7/04 ,  E21B21/08 ,  E21B44/04 ,  E21B45/00 ,  E21B47/06 ,  E21B47/065 ,  E21B47/12 ,  E21B49/003 ,  G01V99/005

Abstract: A method including obtaining input attribute values and a target risk attribute value associated with a first borehole segment. The method also includes training a prediction model for the target risk attribute using the input attribute values and the target risk attribute value. The method also includes acquiring subsequent input attribute values. The method also includes using the trained prediction model and the subsequent input attribute values to predict a target risk attribute value for a second borehole segment. The method also includes storing or displaying information based on the predicted target risk attribute value.

公开(公告)号：US10597998B2

公开(公告)日：2020-03-24

申请号：US15328414

申请日：2014-09-08

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Robello Samuel ,  Aniket

IPC: E21B47/00 ,  E21B47/022 ,  G06F17/50 ,  E21B44/00 ,  E21B47/12 ,  E21B7/04 ,  E21B12/02 ,  E21B47/08 ,  E21B33/14 ,  E21B47/18

Abstract: Disclosed embodiments include a method for estimating casing wear including the operations of: obtaining locations of survey points along a borehole, said survey point locations representing a borehole trajectory; casing at least a portion of the borehole with a casing string; deriving locations of adjusted survey points that represent a casing trajectory along said portion of the borehole, the casing trajectory being different from the borehole trajectory; estimating, as a function of position along said casing string, a side force of a drill string against the casing string; computing, as a function of position along the casing string, casing wear based at least in part on the side force; and generating a notification of any positions where casing wear exceeds a threshold.

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：US20140214326A1

公开(公告)日：2014-07-31

申请号：US14029271

申请日：2013-09-17

Applicant: Landmark Graphics Corporation

Inventor： Robello Samuel ,  Aniket

IPC: E21B47/06

CPC classification number: E21B47/00

Abstract: Systems and methods for well integrity management in all phases of development using a coupled engineering analysis to calculate a safety factor, based on actual and/or average values of various well integrity parameters from continuous real-time monitoring, which is compared to a respective threshold limit.

Abstract translation: 使用耦合工程分析，根据来自连续实时监测的各种井完整性参数的实际值和/或平均值来计算安全系数，在开发的所有阶段进行井完整性管理的系统和方法，其与各自的阈值进行比较 限制。

公开(公告)号：US10280732B2

公开(公告)日：2019-05-07

申请号：US15313502

申请日：2014-08-21

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Serkan Dursun ,  Robello Samuel ,  Aniket

IPC: E21B44/06 ,  E21B47/12 ,  E21B7/04 ,  E21B21/08 ,  E21B44/04 ,  E21B45/00 ,  E21B47/06 ,  E21B49/00 ,  G01V99/00

Abstract: A method including obtaining input attribute values and a target risk attribute value associated with a first borehole segment. The method also includes training a prediction model for the target risk attribute using the input attribute values and the target risk attribute value. The method also includes acquiring subsequent input attribute values. The method also includes using the trained prediction model and the subsequent input attribute values to predict a target risk attribute value for a second borehole segment. The method also includes storing or displaying information based on the predicted target risk attribute value.