公开(公告)号：US11952845B2

公开(公告)日：2024-04-09

申请号：US17274256

申请日：2019-06-04

Applicant: Landmark Graphics Corporation

Inventor： Jianxin Lu ,  Michael T. Pelletier ,  Dale E. Jamison ,  Arash Haghshenas ,  Li Gao

IPC: E21B21/08 ,  E21B44/00

CPC classification number: E21B21/08 ,  E21B44/00 ,  E21B2200/20

Abstract: Gas bubble migration can be managed in liquids. In one example, a system can execute wellbore-simulation software to simulate changes in gas dissolution in a liquid over time. This may involve dividing the wellbore into segments spanning from the well surface to the downhole location, each segment spanning a respective depth increment between the well surface and the downhole location. Next, for each time, the system can determine a respective multiphase-flow regime associated with each segment of the plurality of segments based on a simulated pressure level, a simulated temperature, a simulated pipe eccentricity, and a simulated fluid velocity at the segment. The system can also determine how much of the gas is dissolved in the liquid at each segment based on the respective multiphase-flow regime at the segment. The system can display a graphical user interface representing the gas dissolution in the liquid over time.

公开(公告)号：US20210355771A1

公开(公告)日：2021-11-18

申请号：US17274256

申请日：2019-06-04

Applicant: Landmark Graphics Corporation

Inventor： Jianxin Lu ,  Michael T. Pelletier ,  Dale E. Jamison ,  Arash Haghshenas ,  Li Gao

IPC: E21B21/08 ,  E21B44/00

Abstract: Gas bubble migration can be managed in liquids. In one example, a system can execute wellbore-simulation software to simulate changes in gas dissolution in a liquid over time. This may involve dividing the wellbore into segments spanning from the well surface to the downhole location, each segment spanning a respective depth increment between the well surface and the downhole location. Next, for each time, the system can determine a respective multiphase-flow regime associated with each segment of the plurality of segments based on a simulated pressure level, a simulated temperature, a simulated pipe eccentricity, and a simulated fluid velocity at the segment. The system can also determine how much of the gas is dissolved in the liquid at each segment based on the respective multiphase-flow regime at the segment. The system can display a graphical user interface representing the gas dissolution in the liquid over time.

公开(公告)号：US11352869B2

公开(公告)日：2022-06-07

申请号：US16609495

申请日：2017-08-18

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Feifei Zhang, Jr. ,  Dale E. Jamison ,  Yi Pan

IPC: E21B44/00 ,  E21B21/08 ,  E21B31/00 ,  E21B47/00 ,  G06N7/06 ,  G06F30/28 ,  G06F30/20 ,  G05B13/04 ,  G06F111/10

Abstract: A method includes receiving a plurality of drilling parameters from a drilling operation, wherein the plurality of drilling parameters. The drilling parameters include a cuttings bed height and a friction factor between a drill string and a wellbore. The method further includes applying the plurality of drilling parameters to a friction model. The friction model utilizes a function of the cuttings bed height to determine a comprehensive friction factor. The comprehensive friction factor is applied to the plurality of drilling parameters to determine a required torque or hook load of the drill string. The method further includes providing an indication of a stuck pipe event.

公开(公告)号：US20200173268A1

公开(公告)日：2020-06-04

申请号：US16609495

申请日：2017-08-18

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Feifei Zhang, JR. ,  Dale E. Jamison ,  Yi Pan

IPC: E21B44/00 ,  E21B21/08 ,  E21B47/00 ,  E21B31/00

Abstract: A method includes receiving a plurality of drilling parameters from a drilling operation, wherein the plurality of drilling parameters. The drilling parameters include a cuttings bed height and a friction factor between a drill string and a wellbore. The method further includes applying the plurality of drilling parameters to a friction model. The friction model utilizes a function of the cuttings bed height to determine a comprehensive friction factor. The comprehensive friction factor is applied to the plurality of drilling parameters to determine a required torque or hook load of the drill string. The method further includes providing an indication of a stuck pipe event.