Invention Grant
- Patent Title: Drillable adaptive turbine guide shoe
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Application No.: US17211893Application Date: 2021-03-25
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Publication No.: US11326400B2Publication Date: 2022-05-10
- Inventor: Ding Feng , Yu Zhao
- Applicant: YANGTZE UNIVERSITY
- Applicant Address: CN Jingzhou
- Assignee: YANGTZE UNIVERSITY
- Current Assignee: YANGTZE UNIVERSITY
- Current Assignee Address: CN Jingzhou
- Agency: WPAT, PC
- Priority: CN2020109660407.7 20200915
- Main IPC: E21B7/20
- IPC: E21B7/20 ; E21B17/14 ; E21B4/02 ; E21B7/28 ; E21B4/00

Abstract:
Disclosed is a drillable adaptive turbine guide shoe, including an adaptive booster component and a power casing shoe component; the adaptive booster component includes a supercharging hollow shaft, a supercharging shell, a disc spring group, a shunt head, a jet oscillator and a semi-cylindrical ring, the supercharging hollow shaft is slidably connected to the supercharging shell, one end of the supercharging hollow shaft is a liquid inlet end and the other end is closed, a cavity is formed between the supercharging hollow shaft and the supercharging shell, and the disc spring group is built in the cavity, the jet oscillator and the semi-cylindrical ring are mounted on the inner wall of the supercharging shell, and one side of the jet oscillator and the semi-cylindrical ring abuts against the shunt head, the shunt head is sleeved on the outer wall of the supercharging hollow shaft; this disclosure solves the problem that the casing cannot be effectively run when the wellbore has sand bridges or wellbore necking.
Public/Granted literature
- US20220081973A1 DRILLABLE ADAPTIVE TURBINE GUIDE SHOE Public/Granted day:2022-03-17
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