Services · Exploration & Appraisal
Exploration & appraisal well testing
One test, a handful of shut-ins, and a development decision riding on the result. We make sure your well test answers the subsurface questions — with less rig time and less flaring.
Why it matters
What a well test tells you that nothing else can
Logs and cores see inches to feet around the wellbore. A well test investigates hundreds to thousands of feet — the only direct measure of how the reservoir actually flows before you commit to a development.
During the flow periods
- Confirm the discovery and its deliverability
- Clean up the well and measure stabilised rates
- Capture large-volume, representative fluid samples
- Check for sand production
During the build-ups (at least two)
- Permeability, skin, non-Darcy flow and initial pressure
- Heterogeneity, boundaries and reservoir connectivity
- A minimum connected volume — evidence for what you can develop
Compartmentalisation is one of the costliest surprises in field development. A well-designed test is often the only place it shows up before first oil.
What we deliver
Support at every stage of the test
Test design
- Designs that cover the full range of subsurface uncertainty
- Durations and sequences sized to your objectives — and to recover deconvolution
- Review of completion and gauge set-up before the rig arrives
- Minimum rig time and flared volume
Real-time support
- Live data QC so problems are caught while they can still be fixed
- Real-time interpretation to confirm objectives are met
- Decisions to extend, shorten or adjust the test — often saving rig days
- Spotting value-adding opportunities as they appear
Interpretation
- All plausible solutions explored, not just the first one that fits
- Deconvolution to refine initial pressure and extend the radius of investigation
- Minimum connected volume evaluation
- Integration with geology, petrophysics and simulation; re-analysis of past tests
Planning a well test?
Design a test that answers your questions
Tell us your objectives. We’ll design a test that meets them with minimum rig time and flaring — and support you during operations.
Already have pressure & rate data?
Get it analysed by specialists
Need an interpretation, a re-analysis with deconvolution, or a second opinion on an existing report? Send us the data securely and we’ll tell you what it can reveal.
Contact
Planning an exploration or appraisal test?
Tell us about the well, your objectives and your timeline. You’ll hear back from one of our specialists.