Product Overview

Summary: This Drill Fluid Management Safe Operating Procedure sets out clear, practical steps for safely storing, mixing, using and disposing of drilling fluids on Australian worksites. It helps control environmental and health risks, supports WHS compliance, and protects equipment performance across drilling and exploration operations.

Effective drill fluid management is critical to safe and efficient drilling operations in mining, exploration, construction and civil works. Poorly controlled drilling fluids can create slip hazards, chemical exposure risks, environmental contamination and costly equipment failures. This Drill Fluid Management Safe Operating Procedure provides a structured, step‑by‑step approach to planning, handling and monitoring drilling fluids, from product selection and storage through to onsite mixing, circulation, reclamation and disposal.

Developed for Australian conditions and WHS expectations, the SOP helps businesses demonstrate due diligence in managing drilling muds, lubricants, additives and cuttings. It explains how to identify hazards associated with different fluid systems, implement appropriate controls, and integrate manufacturer Safety Data Sheets (SDS) into day‑to‑day practice. By standardising how crews manage drill fluids, organisations can reduce incidents, improve environmental performance, and maintain consistent hole quality and penetration rates across projects.

The procedure also supports coordination between drill crews, site supervisors, environmental teams and maintenance personnel. It outlines clear responsibilities, inspection routines, spill response actions and record‑keeping requirements, making it easier to train new staff, manage contractors, and satisfy client and regulator expectations on remote and urban drilling sites alike.

Key Benefits

• Reduce slip, trip and exposure risks by standardising how drilling fluids are stored, mixed, contained and cleaned up.
• Ensure compliance with Australian WHS, environmental and dangerous goods requirements related to drilling fluids and additives.
• Improve drilling performance by maintaining optimal fluid properties, circulation and solids control, reducing unplanned downtime.
• Minimise environmental impacts and remediation costs through clear controls for spill prevention, containment and waste disposal.
• Streamline crew training and onboarding with a clear, repeatable process for safe drill fluid management across multiple sites.

Who is this for?

• Drill Supervisors
• Drillers and Offsiders
• WHS Managers
• Field HSE Advisors
• Exploration Managers
• Civil and Mining Project Managers
• Environmental Advisors
• Maintenance Supervisors
• Contract Drilling Company Owners

Hazards Addressed

• Slips, trips and falls from spilled or tracked drilling fluids and mud.
• Skin and eye irritation or chemical burns from contact with drilling fluid additives, lubricants and cleaning agents.
• Respiratory irritation from dusts generated during mixing of powdered drilling additives.
• Environmental contamination of soil and waterways from uncontrolled fluid discharge, spills or improper disposal.
• Pressure‑related incidents from blocked return lines, over‑pressurised systems or incorrect valve operation.
• Manual handling injuries from lifting bags, drums and containers of drilling fluid products.
• Equipment damage and failure due to incorrect fluid properties, contamination or inadequate solids control.
• Exposure to biological hazards in recycled or stagnant fluids (e.g. bacterial growth, odours).

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Types of Drilling Fluids
• 3.0 Roles and Responsibilities
• 4.0 Applicable Legislation, Standards and SDS Requirements
• 5.0 Pre‑Start Planning and Risk Assessment for Drill Fluid Activities
• 6.0 Storage, Labelling and Handling of Drilling Fluids and Additives
• 7.0 Personal Protective Equipment (PPE) Requirements
• 8.0 Mixing and Preparation of Drilling Fluids (Liquid and Powdered Products)
• 9.0 Circulation, Monitoring and Adjustment of Drill Fluid Properties
• 10.0 Solids Control, Recycling and Containment Systems
• 11.0 Spill Prevention, Containment and Clean‑Up Procedures
• 12.0 Management of Drill Cuttings, Waste Fluids and Disposal
• 13.0 Environmental Protection Measures and Buffer Zones
• 14.0 Equipment Inspection, Maintenance and Housekeeping
• 15.0 Health Monitoring, Exposure Controls and First Aid Considerations
• 16.0 Emergency Response and Incident Reporting
• 17.0 Training, Competency and Induction Requirements
• 18.0 Record‑Keeping, Monitoring Logs and Continuous Improvement

Legislation & References

• Work Health and Safety Act 2011 (Cth) and corresponding state and territory WHS legislation
• Work Health and Safety Regulations 2011 (Cth) and state/territory equivalents
• Safe Work Australia – Code of Practice: Managing Risks of Hazardous Chemicals in the Workplace
• Safe Work Australia – Code of Practice: Managing the Work Environment and Facilities
• Safe Work Australia – Code of Practice: How to Manage Work Health and Safety Risks
• AS 1940: The storage and handling of flammable and combustible liquids (where applicable to certain fluid components)
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 2161: Occupational protective gloves
• Environment Protection Authority (EPA) guidelines relevant to drilling waste and wastewater management in the applicable state or territory