Services · Injection wells
Injection well test analysis (PFO)
Water injectors are hard to read: fracture size changes with injection pressure, water temperature and reservoir pressure shift, and damage builds up. Fall-off analysis shows what is really happening — and whether the water stays where it should.
Why it matters
The best window into injector performance
Opportunistic fall-offs are one of the most cost-effective surveillance tools for water injection. Properly interpreted, they separate the effects that a rate and a wellhead pressure can’t.
- Separate the effects of fracture dimensions, fracture closure and damage
- Track performance as injection water, temperature and reservoir pressure change
- Confirm containment in the target layer and no excessive fracture growth
- Protect cap-rock integrity
Everything we do on producers applies to injectors too — plus the physics of changing open-fracture size and long transients.
What we deliver
Keep injection efficient and contained
Performance monitoring
- Multiphase flow, changing open-fracture size and long transients
- Water/oil interface and cold-water front tracking
- Fracture size, damage, temperature and pressure effects
Containment & integrity
- Detection and understanding of fracturing events
- No excessive fracture growth; containment in the target layer
- Evidence to support cap-rock integrity
Diagnosing deviations
- Fracture closure, receding fracture height, rising damage
- Blockage and sand fill
- Impact of produced-water re-injection, cold-water flushes, stimulation and other interventions
- Re-interpretation of past fall-offs with modern tools, including deconvolution
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
Need clarity on your injectors?
Tell us about the well, your objectives and your timeline. You’ll hear back from one of our specialists.