Title: Parameter optimisation and experimental verification of the positive-negative pressure pulse automatic control system for plug removal

Authors: Zhenfu Ma; Yuankai Song; Kai Zhang

Addresses: School of Petroleum Engineering, China University of Petroleum, Qingdao 266580, Shandong, China; Hekou Oil Production Plant, Shengli Oilfield Branch, Dongying 8665010, Shandong, China ' College of New Energy, China University of Petroleum, Qingdao 266580, Shandong, China ' School of Petroleum Engineering, China University of Petroleum, Qingdao 266580, Shandong, China

Abstract: The effective application of water injection wells in oilfield operations plays an important role in improving the production quality of oilfields and the actual revenue of oilfield enterprises. Aiming at the current problems of mineralisation blockage and scaling in oil production, this paper designs a positive-negative pressure pulse automatic control system for plug removal. First, it studies the main equipment for the implementation of positive-negative pulse automatic control, and then designs the technical principles, control logic and implementation methods of positive pressure pulse, negative pressure pulse, and positive-negative coupling control. Next, the control effect is verified by the automatic control experiment platform and the control parameters are optimised. Finally, the optimised control effect is verified by experiment using the control platform.

Keywords: oil well scaling and plugging; positive-negative pressure pulse; automatic control; Kingview.

DOI: 10.1504/IJCAT.2020.111606

International Journal of Computer Applications in Technology, 2020 Vol.64 No.2, pp.158 - 167

Received: 28 Apr 2020
Accepted: 02 Jun 2020

Published online: 30 Nov 2020 *

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