公开(公告)号：US20190153800A1

公开(公告)日：2019-05-23

申请号：US16097879

申请日：2017-05-02

Applicant: University of Houston System

Inventor： Gangbing Song ,  Devendra Patil ,  Qingzhao Kong ,  Robello Samuel

IPC: E21B31/00

Abstract: Improved drilling systems and methods may include piezoelectric actuator(s) in a drill string at one or more locations to minimize or eliminate stick-slip while drilling. For example, piezoelectric actuators may be incorporated into the rock bit or drill bit in the openings in the bit body for receiving the cutters. As another example, the piezoelectric actuators may be incorporated into an independent module that is place on or in the drill string. The independent module may be placed between the top drive and the drill bit or at the top of the drill string near a top drive.

公开(公告)号：US11028659B2

公开(公告)日：2021-06-08

申请号：US16097879

申请日：2017-05-02

Applicant: University of Houston System

Inventor： Gangbing Song ,  Devendra Patil ,  Qingzhao Kong ,  Robello Samuel

IPC: E21B31/00 ,  E21B10/42 ,  E21B47/024 ,  E21B44/00 ,  H01L41/09

Abstract: Improved drilling systems and methods may include piezoelectric actuator(s) in a drill string at one or more locations to minimize or eliminate stick-slip while drilling. For example, piezoelectric actuators may be incorporated into the rock bit or drill bit in the openings in the bit body for receiving the cutters. As another example, the piezoelectric actuators may be incorporated into an independent module that is place on or in the drill string. The independent module may be placed between the top drive and the drill bit or at the top of the drill string near a top drive.

公开(公告)号：US20210078052A1

公开(公告)日：2021-03-18

申请号：US16494409

申请日：2018-03-20

Applicant: UNIVERSITY OF HOUSTON SYSTEM

Inventor： Gangbing Song ,  Siu Chun Michael Ho ,  Devendra Patil

IPC: B08B3/12 ,  B08B17/02 ,  B63B59/04 ,  E02B17/00 ,  E02D31/06 ,  B06B1/06

Abstract: Systems and methods for the ultrasonic disruption of biofilm and algae growth on underwater structures utilize an ultrasonic actuator (10) that produces a natural frequency in the ultrasonic range. In some embodiments, the ultrasonic actuator (10) includes one or more piezoelectric transducers (110).

公开(公告)号：US20230054218A1

公开(公告)日：2023-02-23

申请号：US17980185

申请日：2022-11-03

Applicant: UNIVERSITY OF HOUSTON SYSTEM

Inventor： Gangbing Song ,  Siu Chun Michael Ho ,  Devendra Patil

IPC: B08B3/12 ,  B08B17/02 ,  B63B59/04 ,  E02B17/00 ,  E02D31/06 ,  B06B1/06

Abstract: Systems and methods for the ultrasonic disruption of biofilm and algae growth on underwater structures utilize an ultrasonic actuator that produces a natural frequency in the ultrasonic range. In some embodiments, the ultrasonic actuator includes one or more piezoelectric transducers.

公开(公告)号：US11833554B2

公开(公告)日：2023-12-05

申请号：US17980185

申请日：2022-11-03

Applicant: UNIVERSITY OF HOUSTON SYSTEM

Inventor： Gangbing Song ,  Siu Chun Michael Ho ,  Devendra Patil

IPC: B08B3/12 ,  B08B17/02 ,  B06B1/06 ,  B63B59/04 ,  E02B17/00 ,  E02D31/06

CPC classification number: B08B3/12 ,  B06B1/0618 ,  B08B17/02 ,  B63B59/04 ,  E02B17/0026 ,  E02D31/06 ,  B06B2201/74

Abstract: Systems and methods for the ultrasonic disruption of biofilm and algae growth on underwater structures utilize an ultrasonic actuator that produces a natural frequency in the ultrasonic range. In some embodiments, the ultrasonic actuator includes one or more piezoelectric transducers.