Senior Petrophysics Technician

Skills at this level

Log data loading and management

— Loads wireline and LWD/MWD log files into petrophysical software, applying correct depth references, units and curve naming, and maintains the well and curve inventory so datasets are traceable and interpretation-ready.

Log data quality control

— Inspects log curves for nulls, spikes, tool artefacts and bad-hole washout effects, deciding which intervals to correct, edit or discard so downstream saturation and porosity analysis is not corrupted.

Depth alignment and log splicing

— Depth-shifts and splices multiple logging runs and merges wireline with LWD curves onto a common reference, resolving overlap and depth mismatches between runs.

Environmental corrections and normalisation

— Applies standard borehole environmental corrections and curve normalisation to gamma ray, resistivity, density and neutron logs following established petrophysical procedures.

Core and log data integration

— Reconciles core measurement datasets (RCAL/SCAL) and formation pressure/fluid sampling records against log data by depth and sample identity, flagging where core and log porosity or permeability diverge.

Standard petrophysical workflow execution

— Runs defined clay-volume, porosity and water-saturation workflows in the software, selecting appropriate parameters and corrections for the well under review.

Interactive Petrophysics (IP)

— Uses Interactive Petrophysics to load, edit, process and plot borehole log data and to run and template repeatable log-analysis workflows for the petrophysics group.

Techlog (SLB)

— Uses Techlog to condition, QC and manage wellbore log and core datasets and to prepare composite displays and cross-plots for petrophysical interpretation.

Petrophysical plotting and display preparation

— Builds composite log displays, cross-plots and template presentations of petrophysical data to the group's standards for petrophysicists and multidisciplinary teams to review.

Data acquisition awareness

— Applies practical knowledge of well logging operations, drilling practices and core retrieval so acquired wireline, MWD/LWD, production logging and cement evaluation data is catalogued and status-tracked correctly.

Workflow templating and standardisation

— Creates reusable workflow templates, parameter sets, QC scripts and naming conventions so recurring petrophysical data-preparation runs consistently across wells, projects and software platforms.