Title:
FERROMAGNETIC OBJECT DETECTION APPARATUS AND METHOD FOR DETECTING TUBING COUPLING
Document Type and Number:
WIPO Patent Application WO/2022/241849
Kind Code:
A1
Abstract:
A ferromagnetic object detection apparatus and a method for detecting a tubing coupling. The ferromagnetic object detection apparatus comprises a supporting cylinder (1), a magnetic field generation apparatus (12), and a magnetic field detection apparatus (11, 2, 3); the supporting cylinder (1) comprises a space penetrating in a direction (X); the magnetic field generation apparatus (12) is located on the outer sidewall of the supporting cylinder (1) and used for generating a magnetic field; the magnetic field detection apparatus (11, 2, 3) comprises a first magnetic field detection element (11), a second magnetic field detection element (2), and a third magnetic field detection element (3); the first magnetic field detection element (11) is used for measuring the moving speed of a ferromagnetic object passing through the space in the first direction (X); the second magnetic field detection element (2) is used for measuring the size of the ferromagnetic object in a second direction perpendicular to the first direction (X); and the third magnetic field detection element (3) is used for detecting the position of the ferromagnetic object. The moving speed, size, and position of the ferromagnetic object passing through the detection apparatus can be separately measured, and thus, the accurate detection of the ferromagnetic object is achieved.
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Inventors:
LIN HAOJIE (CN)
WANG XIN (CN)
XING HAIPING (CN)
GAO FENG (CN)
LI SHOUZHE (CN)
WANG KAI (CN)
LI MINGXING (CN)
WANG XIN (CN)
XING HAIPING (CN)
GAO FENG (CN)
LI SHOUZHE (CN)
WANG KAI (CN)
LI MINGXING (CN)
Application Number:
PCT/CN2021/097943
Publication Date:
November 24, 2022
Filing Date:
June 02, 2021
Export Citation:
Assignee:
YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD (CN)
International Classes:
E21B47/092
Foreign References:
| CN107882550A | 2018-04-06 | |||
| CN201953376U | 2011-08-31 | |||
| CN104564033A | 2015-04-29 | |||
| US4964462A | 1990-10-23 | |||
| CN208254392U | 2018-12-18 | |||
| CN212389330U | 2021-01-22 | |||
| GB1126019A | 1968-09-05 | |||
| CN211374614U | 2020-08-28 | |||
| CN103412343A | 2013-11-27 | |||
| US20140111210A1 | 2014-04-24 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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