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    PRESSURE RELEASE DURING DRILLING
    133.
    发明申请
    PRESSURE RELEASE DURING DRILLING 有权

    公开(公告)号：US20210246744A1

    公开(公告)日：2021-08-12

    申请号：US17166632

    申请日：2021-02-03

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Gunvald NESHEIM

    IPC: E21B21/08 ,  E21B21/10

    Abstract: The invention relates to the drilling of wells in rock and hydrocarbon formations. Drilling is performed with a drill string having a bottom hole assembly (BHA) and drill bit. Drilling mud is circulated during drilling. A valved inlet port is provided in the BHA which, in the event of a pack-off, opens and allows drilling mud to enter an internal space in the BHA to relieve pressure. An outlet port at the proximal end of the BHA may be provided to allow he mud to flow back into the annulus around the drill string. In this way, rapid build-up of pressure is avoided and the driller has more time to respond to the pack-off.

    WELL ANNULUS PRESSURE MONITORING
    135.
    发明申请
    WELL ANNULUS PRESSURE MONITORING 有权

    公开(公告)号：US20210156244A1

    公开(公告)日：2021-05-27

    申请号：US16951835

    申请日：2020-11-18

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Bjoernar HOEIE ,  Tore Morten HIIM

    IPC: E21B47/007 ,  E21B21/08 ,  E21B47/117

    Abstract: The invention relates to the monitoring of pressure in production tubing (3) and/or annuli (7, 9) of an oil or gas well. Patterns of pressure in tubing and/or annuli may be indicative of a fault or a condition which requires attention. Patterns may also be recognized that, e.g. based in rates of change, may indicate that a fault may be going to occur in the future. Pressure differences between tubing and annuli or between different annuli may be monitored in the same way.

    INTEGRATED MACHINE LEARNING FRAMEWORK FOR OPTIMIZING UNCONVENTIONAL RESOURCE DEVELOPMENT
    137.
    发明申请
    INTEGRATED MACHINE LEARNING FRAMEWORK FOR OPTIMIZING UNCONVENTIONAL RESOURCE DEVELOPMENT 有权

    公开(公告)号：US20210123343A1

    公开(公告)日：2021-04-29

    申请号：US17082793

    申请日：2020-10-28

    Applicant: ConocoPhillips Company

    Inventor： Hui Zhou ,  Benjamin Lascaud

    IPC: E21B49/08 ,  E21B47/003 ,  E21B7/04 ,  G01V3/34 ,  G06N20/00

    Abstract: Implementations described and claimed herein provide systems and methods for developing resources from an unconventional reservoir. In one implementation, raw reservoir data for the unconventional reservoir is obtained. The raw reservoir data includes geology data, completion data, development data, and production data. The raw reservoir data is transformed to transformed data. The raw reservoir data is transformed to the transformed data based on a transformation from a set of one or more raw variable to a set of one or more transformed variables. The set of one or more transformed variables is statistically uncorrelated. Resource development data is extracted from the transformed data. Performance analytics are generated for the unconventional reservoir using the resource development data. The performance analytics are generated through ensemble machine learning. The unconventional reservoir is developed based on the performance analytics.

    Logging with selective solidification of annular material
    138.
    发明授权
    Logging with selective solidification of annular material 有权

    公开(公告)号：US10989041B2

    公开(公告)日：2021-04-27

    申请号：US15952499

    申请日：2018-04-13

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Stephen Cromar ,  Ian Milne

    IPC: E21B47/00 ,  E21B47/005 ,  G01V1/22 ,  G01V1/52 ,  E21B33/14 ,  G01V99/00

    Abstract: Systems and methods of logging in a well include utilizing a solidifying fluid, such as magnetorheological fluid, in at least one annulus surrounding a logging tool. Given production tubing may remain in the well during the logging as desired for efficiency, space between the production tubing and a casing string may form the annulus. Filling the annulus with the solidifying fluid and selective activation of the solidifying fluid to a solidified state during the logging limits interference in data collected as a result of transmitting across the annulus. Deactivation of the solidifying fluid to a liquefied state enables recovery of the solidifying fluid from the well after the logging. Embodiments employ the logging in various applications, such as assessing a cemented casing string in well abandonment operations.

    ELEMENTAL SULFUR ANALYSIS IN FLUIDS
    140.
    发明申请
    ELEMENTAL SULFUR ANALYSIS IN FLUIDS 有权

    公开(公告)号：US20210102932A1

    公开(公告)日：2021-04-08

    申请号：US17062281

    申请日：2020-10-02

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Jay LOCKLEAR ,  Clinton CROWE

    IPC: G01N33/28 ,  G01N21/25 ,  G01N1/28 ,  G01N21/78

    Abstract: Robust methods for quantitating the amount of elemental sulfur in a fluid whereby a caustic solution is mixed with the fluid, and the elemental sulfur present in the fluid reacts to form a colored solution that can be compared to a series of standards. The methods can be performed in a laboratory or the field and allow for real time feedback. Once the concentration of the elemental sulfur is known, appropriate methods of treatment can proceed. Test kits for performing the methods in the field are also described.

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