BINDERLESS OR CATALYST-FREE REVOLVING PDC CUTTER

    公开(公告)号:US20240328262A1

    公开(公告)日:2024-10-03

    申请号:US18194186

    申请日:2023-03-31

    摘要: A cutting element has an upper body and a shaft extending from a lower side of the upper body. The upper body includes a cutting face opposite the lower side and bordered by a cutting edge, a side surface extending from the cutting edge, wherein an upper body diameter is measured between the side surface, and a catalyst-free polycrystalline diamond (CFPCD) portion forming the cutting face, the cutting edge, and at least a portion of the side surface. The CFPCD portion has a diamond matrix formed of a plurality of bonded together diamond grains, wherein diamond forms at least 99 percent by volume of the CFPCD portion, and wherein the CFPCD portion extends at least 1 mm from the cutting face. The shaft has a circumferential groove extending around its circumference and a shaft diameter less than the upper body diameter.

    Systems for a dissolvable material based downhole tool

    公开(公告)号:US11859449B2

    公开(公告)日:2024-01-02

    申请号:US17643657

    申请日:2021-12-10

    IPC分类号: E21B47/12 E21B34/06

    摘要: A downhole sub has a body defined by a wall extending in an axial direction from a first end to a second end. An inner surface of the wall defines a flow path through the downhole sub and an outer surface of the wall defines an outer diameter of the downhole sub. A compartment extends from the outer surface into the wall to having a depth less than a thickness of the wall. A housing may be removably fixed in the compartment. One or more mobile devices may be disposed in the housing. Each of the one or more mobile devices includes a sensor encapsulated in a protective material. A control element may block an opening of the housing, the control element is made of a dissolvable material configured to dissolve at a predetermined depth in a wellbore and release the one or more mobile devices into the wellbore.

    Drilling bit nozzle-based sensing system

    公开(公告)号:US11346207B1

    公开(公告)日:2022-05-31

    申请号:US17208361

    申请日:2021-03-22

    IPC分类号: E21B47/013

    摘要: A system for gathering downhole measurements includes a drill bit, at least one nozzle receptacle located on the drill bit, and a sensor system. The sensor system has a sensor housing, a flow path extending through the sensor housing, wherein the flow path allows fluid to flow through the sensor housing, and an internal cavity provided within the sensor housing separate from the flow path. The internal cavity contains components that include at least one sensor for gathering data about drill bit conditions and downhole conditions, a powering unit, a printed circuit board, and an electrical conductor, wherein the sensor housing is installed in the at least one nozzle receptacle.

    Logging tool with 4D printed sensing system

    公开(公告)号:US11255188B2

    公开(公告)日:2022-02-22

    申请号:US16864507

    申请日:2020-05-01

    摘要: An example system for operation in a borehole in a hydrocarbon-bearing rock formation includes a logging tool for detecting one or more conditions in the borehole. The logging tool includes a tool body and a 4D printed sensing element. The 4D printed sensing element includes a 3D printed shape-memory material configured to alter in at least one spatial dimension in response to one or more stimuli, thereby generating a data signal. The example system includes a data recording device in communication with the logging tool to receive and record one or more data signals transmitted from the logging tool.

    MEASURING WELLBORE CROSS-SECTIONS USING DOWNHOLE CALIPER TOOLS

    公开(公告)号:US20210372270A1

    公开(公告)日:2021-12-02

    申请号:US16886493

    申请日:2020-05-28

    IPC分类号: E21B47/08 G01B5/12

    摘要: Tools and methods are described to measure dimensions of wellbores. Downhole caliper tools include a downhole collar and an uphole collar having a running position and a sensing position. The uphole collar is farther from the downhole collar in the running position than in the sensing position. A caliper sensor assembly includes: a sensor module defining tracks extending parallel to an axis of the caliper tool, the sensor module positioned towards an uphole end of the caliper tool relative to the uphole collar; and a caliper disposed between the downhole collar and the uphole collar including: a flexible mesh extending from the downhole collar to the uphole collar. Movement of the uphole collar from the running position to the sensing position axially compresses and radially expands the flexible mesh. The annular sensor module can measure dimensions of the flexible mesh relative to the axis of the caliper tool.