Description
Monitor and document geological and drilling data at wellsites. Analyze drilling mud and cuttings, detect and quantify gases, and maintain real-time logs of lithology, hydrocarbons, and drilling parameters to support geologists and drilling teams.
- • Collect and prepare drill cuttings at specified depth intervals.
- • Describe lithology, grain size, color, and texture under a microscope.
- • Perform fluorescence and solvent cut tests for hydrocarbon shows.
- • Operate and calibrate total gas detectors and gas chromatographs.
- • Quantify and speciate hydrocarbon gases (C1-C5) from the mud stream.
- • Set, verify, and update lag time and depth tracking.
- • Monitor and record ROP, WOB, RPM, torque, SPP, and pump strokes.
- • Track mud weight, viscosity, pit volumes, flow rates, and temperature.
- • Detect and report background, connection, and trip gas, and kick indicators.
- • Maintain real-time mud logs and formation evaluation logs.
- • Correlate cuttings and gas data with MWD, LWD, and wireline logs.
- • Summarize formation tops, shows, and drilling breaks for the geology team.
- • Compile daily and end-of-well reports for clients and operations.
- • Label, archive, and ship cuttings and samples per client standards.
- • Capture and annotate photographs of cuttings and shows.
- • Install, operate, and troubleshoot gas traps, surface sensors, and data systems.
- • Perform routine maintenance and field repairs on logging equipment.
- • Validate data quality and apply QA/QC procedures.
- • Upload and transmit data and logs via WITS or WITSML.
- • Plot lithology, gas, and drilling trends versus depth and time.
- • Alert drilling and geology teams to hazards or anomalous trends.
- • Participate in pre-job planning, rig up and rig down, and HSE meetings.
- • Follow well control and H2S monitoring protocols; test alarms and detectors.
- • Read and interpret drilling programs and offset well information.
- • Maintain organized notes, records, and sample inventories.
- • Provide thorough shift handovers and maintain 24/7 coverage.
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Energy & Natural Resources
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Last reviewed: Jan 2026
