Well Intervention
Well Remediation Services
Restoring underperforming and damaged wells through proven mechanical and chemical remediation techniques — bringing production back to its full potential.
Service Overview
Proven Well Remediation Solutions
Wells naturally decline in performance over time due to scale buildup, sand production, wax deposition, formation damage, or mechanical failure. Sequential International's well remediation team diagnoses the root cause and deploys the right intervention to restore production.
From matrix acid stimulation to sand consolidation and coil tubing cleanout, we have the tools and expertise to recover production from underperforming assets — cost-effectively and safely.
“A well that has stopped producing is not necessarily a dead well — our remediation team can often unlock significant value from underperforming assets.”
What We Deliver
Scope of Work
Acid Stimulation
Matrix acidising of carbonate and sandstone formations to remove near-wellbore damage and restore inflow.
Scale Removal
Chemical and mechanical scale removal from tubing, perforations, and wellbore — restoring full bore access and inflow.
Sand Control
Sand consolidation treatments and gravel pack installation to prevent sand production from unconsolidated formations.
Wax & Asphaltene Treatment
Hot oil circulation, chemical wax inhibitor injection, and mechanical scraping to resolve paraffin blockages.
Coil Tubing Cleanout
Wellbore cleanout using coil tubing and jetting tools to remove sand, scale, and debris plugging perforations.
Mechanical Intervention
Packers, plugs, and mechanical remediation for zonal isolation, flow diversion, and casing repair.
How We Work
Our Service Process
Production Diagnosis
Analysis of production data, pressure tests, and fluid samples to identify the remediation target.
Treatment Design
Engineering of the optimal remediation treatment with lab testing of chemical compatibility.
Execution
Controlled deployment of mechanical or chemical treatment with real-time monitoring.
Post-Treatment Evaluation
Flow test and production monitoring to quantify treatment success and recommend follow-up.
Why Choose Us
Key Benefits
Production Recovery
Successful remediation can recover a significant portion of lost production from impaired wells.
Cost-Effective vs Redrilling
Remediation is typically 80-95% cheaper than drilling a replacement well.
Customised Treatment Design
Every treatment is engineered to the specific impairment identified — no generic solutions.
Fast Turnaround
Many remediation treatments can be designed, mobilised, and executed within days.
Multi-Impairment Capability
Scale, wax, sand, and formation damage can all be addressed within a single treatment programme.
Post-Treatment Monitoring
Production monitoring and data analysis to validate treatment effectiveness and schedule retreatments.
Well remediation with acids and chemicals requires strict COSHH controls, PPE, and spill prevention. All chemical handling is performed under a chemical management plan with full MSDS review, secondary containment, and eye wash stations on site.
Capabilities
Equipment & Capabilities
Chemical Blending
On-site acid blending and inhibitor mixing capability for custom stimulation fluid design.
Injection Pumps
High-pressure chemical injection pumps for matrix acidising and scale inhibitor squeeze treatments.
Coil Tubing Units
Light-weight coil tubing units with jet nozzles and agitator tools for wellbore cleanout operations.
Gravel Pack Tools
Screen and gravel pack equipment for sand control completion installations.
Data Monitoring
Pressure and temperature gauges for real-time treatment monitoring and post-job analysis.
Lab Testing
Fluid compatibility, core flood, and stimulation lab testing to optimise treatment design.
Restore Your Underperforming Wells
Share your production data and well history with our remediation engineers. We will identify the best treatment option and provide a detailed technical and commercial proposal.