公开(公告)号：US20220220830A1

公开(公告)日：2022-07-14

申请号：US17607545

申请日：2020-01-29

Applicant: Landmark Graphics Corporation

Inventor： Yongfeng KANG ,  Adolfo GONZALES ,  Robello SAMUEL ,  Zhengchun LIU

IPC: E21B41/00 ,  E21B43/26 ,  E21B47/06

Abstract: A system for designing a casing string for a well. The system comprises a processor, a non-transitory memory, a thermodynamic modeling application stored in the non-transitory memory that, when executed by the processor, models carbon dioxide (CO2) material in the well using a carbon dioxide equation of state (EoS) to determine thermodynamic properties of the CO2 material, and a downhole environment modeling application stored in the non-transitory memory that, when executed by the processor determines temperatures of and pressures at well components at each of a plurality of points of a casing string design based in part on the thermodynamic properties of the CO2 material determined by the thermodynamic modeling application, and provides the temperatures of well components and pressures in the casing string at each of the plurality of points of the casing string to a casing string strength analysis application executing on the computer system.

公开(公告)号：US20220205340A1

公开(公告)日：2022-06-30

申请号：US17607541

申请日：2020-01-02

Applicant: Landmark Graphics Corporation

Inventor： Zhengchun LIU ,  Robello SAMUEL ,  Adolfo GONZALES ,  Max O. DUNCAN ,  Jenny XIE ,  Yongfeng KANG

IPC: E21B41/00 ,  G06F30/10 ,  E21B47/07

Abstract: A system for designing a casing string for an oil well, a gas well, an oil and gas well, and/or a geothermal well. The system comprises a processor, a non-transitory memory storing a casing string design, wherein the casing string design comprises at least one section of UOE-type pipe, a downhole environment simulation application stored in the non-transitory memory that, when executed by the processor determines downhole conditions based on the casing string design, wherein the downhole conditions comprise a downhole temperature, and a casing collapse strength modeling application stored in the non-transitory memory that, when executed by the processor, analyzes collapse strength of the casing string based on the downhole temperature and based on a UOE-type pipe collapse strength model and presents a collapse strength report on the casing string design based on analyzing the collapse strength of the casing string.

公开(公告)号：US20170159371A1

公开(公告)日：2017-06-08

申请号：US14917398

申请日：2015-06-12

Applicant: Landmark Graphics Corporation

Inventor： Aniket (NO LAST NAME) ,  Adolfo GONZALES ,  Robello SAMUEL

IPC: E21B12/02 ,  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.