TORQUE-ADAPTIVE IMPACT TOOL SUITABLE FOR PDC BIT

    公开(公告)号:US20240175323A1

    公开(公告)日:2024-05-30

    申请号:US18358016

    申请日:2023-07-24

    IPC分类号: E21B4/10 E21B4/00

    CPC分类号: E21B4/10 E21B4/006 E21B10/54

    摘要: A torque-adaptive impact tool suitable for a PDC (Polycrystalline Diamond Compact) bit is provided, which includes a PDC bit, a rotary-driving power device, and a torque-adaptive impact tool above the PDC bit. The torque-adaptive impact tool is located between the PDC bit and the rotary-driving power device, includes an outer housing, an upper end cover, a main shaft, an elastic element, an upper impact body, and a lower impact body. In a case of a normal operation of the bit, the tool does not impact the bit, but rotates along with the rotary-driving power device for drilling. In a case that a rock-breaking torque required by the bit exceeds a driving torque, the tool impact the bit.

    System and method for transmitting information in a borehole

    公开(公告)号:US11578593B2

    公开(公告)日:2023-02-14

    申请号:US17239545

    申请日:2021-04-24

    发明人: Todd W. Benson

    摘要: Systems and methods for producing controlled vibrations within a borehole. In one example, the system includes a movement mechanism and a controller. The movement mechanism is configured to enable translational movement of a first surface relative to a second surface to allow the first surface to impact the second surface to produce a plurality of beats. The frequency and amplitude of the beats may be selectively controlled by suppressing or dampening the beats. The controller is configured to selectively control an amplitude or frequency of the beats to encode information therein, where the amplitude of a beat may be selectively controlled by dampening or suppressing the impact of the first surface and the second surface.

    SYSTEM AND METHOD FOR DUAL TELEMETRY NOISE REDUCTION

    公开(公告)号:US20210324735A1

    公开(公告)日:2021-10-21

    申请号:US17364649

    申请日:2021-06-30

    发明人: Todd W. BENSON

    摘要: A system and method for controlling the frequency or amplitude of vibrations during drilling of a well. A system for generating mechanical vibrations may generate a control signal to cause two plates to impact one another with a first frequency or amplitude. The frequency or amplitude may be selected to steer the direction of drilling. In addition, a second control signal may be generated to cause the two plates to impact with a second frequency or amplitude to steer the direction of drilling, such as when the wellbore has deviated from the target path of a well plan. The control signals may be associated with one or more geological formations.

    SYSTEM AND METHOD FOR TRANSMITTING INFORMATION IN A BOREHOLE

    公开(公告)号:US20210238996A1

    公开(公告)日:2021-08-05

    申请号:US17239545

    申请日:2021-04-24

    发明人: Todd W. BENSON

    摘要: Systems and methods for producing controlled vibrations within a borehole. In one example, the system includes a movement mechanism and a controller. The movement mechanism is configured to enable translational movement of a first surface relative to a second surface to allow the first surface to impact the second surface to produce a plurality of beats. The frequency and amplitude of the beats may be selectively controlled by suppressing or dampening the beats. The controller is configured to selectively control an amplitude or frequency of the beats to encode information therein, where the amplitude of a beat may be selectively controlled by dampening or suppressing the impact of the first surface and the second surface.

    Ball transfer mechanism with polycrystalline diamond bearing support

    公开(公告)号:US10968700B1

    公开(公告)日:2021-04-06

    申请号:US15726506

    申请日:2017-10-06

    发明人: David W. Raymond

    摘要: A ball transfer mechanism for a harmonic drive and linear piston motor is disclosed. The ball transfer mechanism includes a spherical ball and a cylindrical seat portion. The seat portion defines a hemispherical shaped recess with a contour for receiving the ball. The ball transfer mechanism is in an exterior wall of a housing for converting rotary motion to linear motion, driving a linear piston motor. The harmonic drive drives a rotor of the linear piston motor. The harmonic drive includes a hollow cylindrical coupler portion engaging a rotor portion for transferring torque to the rotor portion. Transfer mechanisms disposed along a housing wall of the linear piston motor engage the coupler portion. The coupler portion includes harmonic cam grooves for receiving spherical balls in the ball transfer mechanism that drives rotational motion in the rotor in response to axially linear movement of the piston assembly.