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Title:
FULL-FREQUENCY-SWEEPING ELECTROMAGNETIC WAX-PREVENTING SCALE-INHIBITING CORROSION-INHIBITING APPARATUS FOR CRUDE OIL EXPLOITATION AND TRANSPORTATION PIPELINE
Document Type and Number:
WIPO Patent Application WO/2021/232884
Kind Code:
A1
Abstract:
A full-frequency-sweeping electromagnetic wax-preventing scale-inhibiting corrosion-inhibiting apparatus for a crude oil exploitation and transportation pipeline, comprising a non-magnetic-conductive pressure-bearing medium transportation pipeline (10). The present invention can monitor the temperature of a crude oil medium in the non-magnetic-conductive pressure-bearing medium transportation pipeline (10) and operation parameters of a front-end electromagnetic harmonic conversion and parametric detection system (7), a middle electromagnetic harmonic conversion and parametric detection system (8), and a rear-end electromagnetic harmonic conversion and parametric detection system (9) in real time, control the frequency and the magnetic field intensity of a magnetic field according to different temperatures and well conditions by means of an HMI/PLC integrated program control module (3), an adaptive frequency algorithm generation module (4), a multi-harmonic generation module (5), and an IGBT drive and harmonic power generation module (6) in an integrated machine (12), and adjust a magnetization distance, thereby expanding the application range of the apparatus in wax prevention and scale prevention, and improving the corrosion-inhibiting effect of the apparatus after wax inhibition and scale prevention.

Inventors:
LI, Xu (CN)
LI, Wei (CN)
SHANG, Xiao (CN)
XU, Yanmin (CN)
CHEN, Hongshuai (CN)
GAO, Jiannong (CN)
XUE, Shanqiang (CN)
Application Number:
PCT/CN2021/078841
Publication Date:
November 25, 2021
Filing Date:
March 03, 2021
Export Citation:
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Assignee:
DONGYING TONGBO PETROLEUM ELECTRONIC INSTRUMENT CO., LTD (CN)
International Classes:
E21B37/00
Attorney, Agent or Firm:
FANG & ASSOCIATES (CN)
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