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    System and method for running and cementing fabric-nested casing
    21.
    发明授权
    System and method for running and cementing fabric-nested casing 有权

    公开(公告)号：US12146383B2

    公开(公告)日：2024-11-19

    申请号：US17852094

    申请日：2022-06-28

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Amjad Shaarawi ,  Mohammad Aljubran ,  Mohammed Alsheikh ,  Abdulwahab Aljohar ,  Timothy Eric Moellendick ,  Ossama Sehsah

    IPC: E21B33/14 ,  E21B3/04

    Abstract: A rig site may include a rotary table within a rig floor above a wellbore. A fabric sheet rolled into two symmetrical rolls is disposed on the rig floor. A pre-cut center hole of the fabric sheet is coaxial with the rotary table. A casing string, to be lowered in the wellbore, includes a first casing joint at a bottom of the casing string is a modified float joint. The pre-cut center hole of the fabric sheet is attached to a sleeve of the modified float joint. Union units are provided above the rotary table. The union units close the fabric sheet around the casing string to form a fabric-nested casing string within the wellbore. A cement slurry is pumped down the casing string and into a space between the fabric sheet and the casing string to cement the fabric-nested casing string to the wellbore.

    Downhole mixing of wellbore treatment fluids
    22.
    发明授权
    Downhole mixing of wellbore treatment fluids 有权

    公开(公告)号：US12091932B2

    公开(公告)日：2024-09-17

    申请号：US17902622

    申请日：2022-09-02

    Applicant: Saudi Arabian Oil Company ,  Modern Ejada for Well Drilling

    Inventor： Carl D. Lindahl ,  Mohammad Aljubran ,  Abdulwahab S. Aljohar ,  Mohammed Alsheikh ,  Shehab Ahmed

    IPC: E21B33/16 ,  E21B33/12

    CPC classification number: E21B33/16 ,  E21B33/12

    Abstract: A wellbore assembly includes a wellbore string disposed within a wellbore and a cement retainer coupled to a downhole end of the wellbore string. The cement retainer includes a housing, a packer, a valve, and a sleeve. The housing includes one or more fluid ports extending from an interior surface of the housing to the annulus. The housing defines a first fluid pathway extending from within the wellbore string to within the housing. The sleeve is movable between a first position, in which the sleeve blocks the one or more fluid ports, and a second position in which the sleeve exposes the one or more fluid ports to open a second fluid pathway extending from the annulus, through the one or more fluid ports, to the first fluid pathway. Opening the second fluid pathway allows mixing of a first fluid with a second fluid in the cement retainer.

    MEASURING DRILLING FLUID HYDROGEN SULFIDE WITH SMART POLYMERS
    23.
    发明公开
    MEASURING DRILLING FLUID HYDROGEN SULFIDE WITH SMART POLYMERS 审中-公开

    公开(公告)号：US20240117737A1

    公开(公告)日：2024-04-11

    申请号：US17960350

    申请日：2022-10-05

    Applicant: Saudi Arabian Oil Company

    Inventor： Mohammed Albassam ,  Arturo Magana Mora ,  Chinthaka Pasan Gooneratne ,  Mohammad Aljubran ,  Peter Boul

    IPC: E21B49/08 ,  C09K8/24 ,  G01N33/24

    CPC classification number: E21B49/0875 ,  C09K8/24 ,  G01N33/24

    Abstract: Systems and methods include techniques for using smart polymers. Units of smart polymers with hydrogen sulfide (H2S) sensitivity are inserted by a monitoring system into drilling fluid pumped into a well. The smart polymers are configured to be triggered by increasing H2S concentrations. An insertion timestamp associated with each unit is stored. Each insertion timestamp indicates a time that each unit was inserted. Continuous images and observed characteristics of returning mud exiting through an annulus of the well and containing the units of smart polymer are captured by a camera positioned at a sensing location and linked to the monitoring system. An estimate of H2S levels at a drill bit of the drilling operation is determined using continuous images, observed characteristics, and insertion timestamps, and based at least in part on executing image processing algorithms, machine-learning models, and deep-learning models. Changes to drilling parameters are suggested.

    AUTOMATION OF SURFACE BACKPRESSURE USING FULL DRILLING SYSTEM PARAMETERS FOR PRESSURE CONTROL IN DOWNHOLE ENVIRONMENTS
    26.
    发明申请
    AUTOMATION OF SURFACE BACKPRESSURE USING FULL DRILLING SYSTEM PARAMETERS FOR PRESSURE CONTROL IN DOWNHOLE ENVIRONMENTS 审中-公开

    公开(公告)号：US20200318447A1

    公开(公告)日：2020-10-08

    申请号：US16373020

    申请日：2019-04-02

    Applicant: Saudi Arabian Oil Company

    Inventor： Mohammad Aljubran ,  Abdullah Saleh Hussain Al-Yami ,  Salem H. Al Gharbi

    IPC: E21B21/08 ,  E21B47/06 ,  E21B21/10 ,  G06F17/50 ,  G06F16/23

    Abstract: The disclosure generally describes methods, software, and systems for automating parameters used in drilling operations. A computer-implemented method includes the following steps. Real-time information associated with fluid density, drilling operational parameters, and rheology is received from devices installed on site and downhole at a managed pressure drilling (MPD) operation. The real-time information is processed to ensure accuracy of the real-time information, and the real-time information is stored in a database. Real-time measurements of equivalent circulating density (ECD) are determined from the stored real-time information using modeling techniques. Hydraulic calculations are performed to determine annular pressure losses (APL). Surface backpressure (SBP) is determined in real time based on the APL. The MPD operation is automatically updated based on the determined SBP.

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