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公开(公告)号：WO2020139415A1
公开(公告)日：2020-07-02
申请号：PCT/US2019/035396
申请日：2019-06-04
Applicant: LANDMARK GRAPHICS CORPORATION
Inventor： LU, Jianxin , PELLETIER, Michael T. , JAMISON, Dale E. , HAGHSHENAS, Arash , GAO, Li
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.
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公开(公告)号：WO2019209344A1
公开(公告)日：2019-10-31
申请号：PCT/US2018/030010
申请日：2018-04-27
Applicant: LANDMARK GRAPHICS CORPORATION
Inventor： LU, Jianxin , HAGHSHENAS, Arash , PELLETIER, Michael T. , JAMISON, Dale E. , GAO, Li , FILIPPOV, Andrey
IPC: E21B49/08
Abstract: Method of determining drilling fluid density with contaminants fluid includes positioning one or more sensors within a wellbore to measure one or more characteristics of one or more individual components of a fluid within the wellbore. A gas solubility value and a volume formation factor for the one or more individual components of the fluid can be obtained based on the measured one or more characteristics. A formation gas modified volume of the drilling fluid can be calculated using the volume formation factor and a volume fraction for each of the one or more individual components. A total mass of the drilling fluid can be determined using the mass of the one or more individual components and a mass of dissolved gas, and a formation gas modified density of the drilling fluid can be determined based on the total mass and the formation gas modified volume.
