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    Dissolvable balls for activation and deactivation of a circulating sub apparatus
    54.
    发明授权
    Dissolvable balls for activation and deactivation of a circulating sub apparatus 有权

    公开(公告)号：US11933136B2

    公开(公告)日：2024-03-19

    申请号：US17539609

    申请日：2021-12-01

    Applicant: Saudi Arabian Oil Company

    Inventor： Jothibasu Ramasamy ,  Chinthaka Pasan Gooneratne ,  Jianhui Xu

    IPC: E21B34/10 ,  E21B21/10 ,  E21B34/06

    CPC classification number: E21B34/063 ,  E21B21/103 ,  E21B34/10 ,  E21B2200/06

    Abstract: A method for operating a circulating sub in a well includes opening a port of the circulating sub, including: dropping a ball into a drill pipe containing a downhole fluid; and seating the ball on an actuator slidably disposed concentrically within the drill pipe, in which seating the ball on the actuator causes motion of the actuator relative to the drill pipe to open a port defined in a wall of the drill pipe. The method includes closing the port of the circulating sub, including: introducing a solvent different from the downhole fluid into the drill pipe, in which a solubility of the ball in the solvent is greater than a solubility of the ball in the downhole fluid; and degrading the ball in the solvent, in which the degrading of the ball causes motion of the actuator relative to the drill pipe to close the port.

    System and method for plugging a lost-circulation zone in a subsurface formation
    55.
    发明授权
    System and method for plugging a lost-circulation zone in a subsurface formation 有权

    公开(公告)号：US11913295B2

    公开(公告)日：2024-02-27

    申请号：US17559544

    申请日：2021-12-22

    Applicant: Saudi Arabian Oil Company

    Inventor： Jothibasu Ramasamy ,  Chinthaka Gooneratne ,  Jianhui Xu

    IPC: E21B21/00 ,  C09K8/487 ,  C09K8/42 ,  E21B33/138

    CPC classification number: E21B21/003 ,  C09K8/426 ,  C09K8/487 ,  E21B33/138

    Abstract: A method for plugging a lost-circulation zone in a subsurface formation includes introducing a drillstem including a drilling stabilizer into a wellbore during drilling operations, the drilling stabilizer including at least stabilizer blades and a pressure sensor. Each stabilizer blade includes at least an inner chamber, a light source, and a window. The method further includes injecting a lost-circulation fluid, including a plurality of lost-circulation particles, into the wellbore. Each lost-circulation particle includes a lost-circulation additive encapsulated by a photo-sensitive coating. The method further includes measuring a pressure differential with the pressure sensor and providing a pressure signal to the light source of each stabilizer blade, thereby actuating the light source to produce a light beam, which allows the light beam to contact the photo-sensitive coatings of the lost-circulation particles to release the lost-circulation additives. The method further includes allowing the lost-circulation fluid to plug the lost-circulation zone.

    Method and apparatus for downhole charging and initiation of drilling microchips
    58.
    发明授权
    Method and apparatus for downhole charging and initiation of drilling microchips 有权

    公开(公告)号：US11725498B2

    公开(公告)日：2023-08-15

    申请号：US17644276

    申请日：2021-12-14

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Abrar Alshaikh ,  Bodong Li ,  Jianhui Xu ,  Guodong Zhan

    IPC: E21B47/01 ,  E21B34/14 ,  E21B47/12

    CPC classification number: E21B47/01 ,  E21B34/142 ,  E21B47/138 ,  E21B2200/06

    Abstract: A system includes a sliding sleeve, a ball landing seat, microchips, a ball catcher, and a charging ring. The sliding sleeve is installed within a tubular body. The tubular body has an exit groove. The ball landing seat is formed by the sliding sleeve and is configured to receive a ball. The plurality of microchips are housed in a microchip ring installed within the sliding sleeve. The plurality of microchips are configured to be released into the well to gather data upon reception of the ball in the ball landing seat. The ball catcher is configured to receive and hold the ball after the plurality of microchips are released into the well. The charging ring is electronically connected to the microchip ring and has a circuit, a power source, and a charging coil. The circuit has a voltage regulation chip, a microprocessor, and a circuit motion sensor.

    Sensors to evaluate the in-situ property of cutting element during wear test
    60.
    发明授权
    Sensors to evaluate the in-situ property of cutting element during wear test 有权

    公开(公告)号：US11680883B2

    公开(公告)日：2023-06-20

    申请号：US17187701

    申请日：2021-02-26

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Chinthaka P. Gooneratne ,  Jianhui Xu ,  Guodong Zhan ,  Bodong Li ,  Arturo Magana Mora

    IPC: G01N3/56 ,  G01N3/58

    CPC classification number: G01N3/56 ,  G01N3/58

    Abstract: A testing device that includes a wear testing device, a sensor array, and a controller. The wear testing device includes a sample rotation element configured to hold and to rotate a sample; and a cutting element holder configured to hold a cutting element and to engage the cutting element with the sample as the sample rotates. The sensor array includes an acoustic emissions (AE) sensor array comprising a plurality of AE sensors, the plurality of AE sensors configured to measure a plurality of acoustic signals generated during engagement between the cutting element and the sample; and a load sensor. The controller is communicably connected to the sensor array and configured to determine a toughness and a wear resistance of the cutting element using the plurality of acoustic signals, the applied load, and a wear state of the cutting element.

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