January 1, 2025

Increasing the reliability of automatic control of preliminary water discharge process from an oil well

Key Points

The proposed control scheme reduces residual oil content in discharged water to 26-48 mg/l, improving environmental standards.
Full-scale tests reveal that automated controls outperform alternative methods, achieving lower oil residues.
Observational analysis of fluid separation methods highlights the effectiveness of downhole techniques in oil extraction operations.
This approach could optimize resource management, highlighting the necessity for advanced automatic systems in oil field operations.

Abstract

A new technology for automatic control of the preliminary water dischargeprocessat downhole fluid separation is considered. A scheme for automatic separation control with constant correction of oil-water mixture separation based on contentassessment of residual oil products in the discharged water is proposed. The results of full-scale tests conducted at an oil well for preliminary water discharge and fluid separation are presented. A comparison of automated control systems forutilization units of produced formation water is carried out. The use of the proposed scheme ensures the residual oil content in the discharged water of 26...48 mg/l (with alternative methods — 36...53 mg/l). Keywords exploitation of oil fields, oil transportation, downhole separation, automatic control, reliability, inertia, efficiency, residual oil products, water discharge, mixture separation, internal column

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