Drilling Fluids Engineer (Mud Engineer)

Position Overview

The Drilling Fluids Engineer (commonly known as the Mud Engineer) is responsible for the design, maintenance, and troubleshooting of drilling fluid systems at the wellsite. This role ensures that mud properties are maintained within specification to support wellbore stability, cuttings transport, well control, and formation protection. While not the most senior role on the rig, competent mud engineers are essential for trouble-free drilling operations.

Key Responsibilities

• Design and maintain drilling fluid programmes for water-based, oil-based, and synthetic-based mud systems.
• Monitor and adjust mud properties (density, viscosity, fluid loss, pH, rheology) at the wellsite on a continuous basis.
• Perform chemical titrations, retort analyses, and particle size distribution measurements to track mud quality.
• Troubleshoot mud-related drilling problems including lost circulation, wellbore instability, and contamination.
• Manage mud volume, chemical inventory, and waste disposal in compliance with environmental regulations.
• Coordinate with the mud programme engineer (office-based) on treatment recommendations and programme modifications.
• Specify and manage lost circulation materials (LCM) and wellbore strengthening treatments.
• Support cementing operations by ensuring proper mud conditioning prior to cement jobs.
• Prepare daily mud reports, chemical usage reports, and end-of-well fluid summaries.
• Ensure compliance with environmental discharge permits for drilling fluid systems.

Qualifications

Required

• Education: Bachelor's degree in Chemistry, Chemical Engineering, Petroleum Engineering, or related discipline.
• Certifications: BOSIET/FOET with CA-EBS; Offshore Medical; H2S Awareness; IWCF Level 2 (awareness).
• Experience: 4–10 years as a drilling fluids engineer with wellsite experience across multiple mud systems.
• Technical Skills: Proficiency in mud system design and troubleshooting; understanding of mud chemistry and rheology; experience with OBM/SBM systems; knowledge of environmental regulations for drilling waste.

Preferred

• Deepwater drilling fluids experience (including riserless mud recovery systems).
• HPHT mud system design and management.
• Experience with managed pressure drilling fluid systems.
• Familiarity with digital mud monitoring and automated mud property measurement.