Executive Summary

Overview

A major oil & gas facility in Gujarat was experiencing persistent hydraulic system failures due to contamination, moisture ingress, and unstable oil cleanliness. These issues were leading to frequent filter choking, unplanned downtime, equipment damage, and operational instability.

Minimac Systems implemented a comprehensive hydraulic flushing and contamination control solution that restored system cleanliness, stabilized operations, and significantly improved reliability.

Key Metrics:

• Oil Cleanliness: Improved from NAS 12 to NAS 9 (Class 9).
• Moisture Levels: Reduced from 187 PPM to 129 PPM.
• Operational Impact: Reduced choking, stable system performance, and lower maintenance intervention.

Introduction

About Minimac Systems

Minimac Systems is a specialist in advanced lubrication, contamination control, oil purification, and hydraulic system reliability solutions. For this project, a dedicated hydraulic flushing and contamination removal solution was deployed to restore system health and performance.

Client Profile

• Sector: Oil & Gas.
• Location: Gujarat, India.
• System Type: Hydraulic loading arm circuits.
• Application: Critical hydraulic operations with small-bore line configurations.

The Challenge

Problem Statement

The client’s hydraulic system was experiencing severe contamination-related failures, including:

• Contamination in the system.
• Choking and blockage in hydraulic lines.
• Frequent filter choking and oil replacement.
• Unstable system operation.
• Increased maintenance and downtime.
• Damage to equipment and critical components.

Impact of the Problem

These issues led to:

• Reduced lubrication efficiency.
• Higher wear rates on valves and components.
• Blockage of small-bore hydraulic lines (Ø12 mm & Ø18 mm).
• Increased operational risk.
• Production interruptions.
• Escalating maintenance costs and asset reliability concerns.

The Solution

Implementation of Minimac Systems

Following detailed inspection and system diagnostics, Minimac Systems deployed a comprehensive hydraulic flushing and contamination removal program, including:

• High-velocity hydraulic flushing of Ø12 mm and Ø18 mm lines across all arm circuits.
• Deployment of Contamination Removal Skid – Model FS-80-2S-H-V, specifically engineered for hydraulic flushing applications.
• Use of an integrated online particle counter for real-time cleanliness monitoring.
• Circulation of 250 liters of hydraulic oil per arm, ensuring thorough contaminant removal.
• Flushing was executed in multiple job sets per loading arm line until KPI targets were achieved.
• Continuous monitoring to meet NAS 1638 Class 9 cleanliness standards.

Product & Technology Used:

• High-efficiency contamination removal skid system.
• Real-time particle counting and monitoring.
• High-velocity flushing technology.
• Moisture and particulate contamination control.
• Multi-stage flushing methodology.
• KPI-driven system validation.

Results

Quantitative Outcomes

Qualitative Outcomes

• Stable and predictable system operation.
• Elimination of frequent filter choking.
• Reduced unplanned downtime.
• Improved lubrication efficiency.
• Lower risk of valve malfunction and component wear.
• Enhanced asset reliability and equipment life.
• Improved operational confidence among engineering teams.

Conclusion

Summary of Benefits

By implementing a structured hydraulic flushing and contamination control strategy, Minimac Systems successfully transformed a highly unstable hydraulic system into a clean, reliable, and efficient operation.

The project delivered:

• Clean oil standards are compliant with industry benchmarks.
• Moisture reduction and improved lubrication performance.
• Stable hydraulic system behavior.
• Reduced maintenance burden.
• Lower downtime risk.
• Long-term reliability improvement.

This case study demonstrates that contamination control is not maintenance; it is reliability engineering.

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