Suspension & Abandonment

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Suspension & Abandonment

At Tristar, we provide comprehensive well suspension and abandonment solutions, ensuring regulatory compliance, environmental stewardship, and cost-effective execution. Our team of experienced engineers and supervisors manage the entire process, from initial assessment to final wellbore closure, with a focus on safety, efficiency, and long-term well integrity.

Services Provided:

Well Suspension & Integrity Management

Planning
- Well Suspension Program Development (All Classes)
- Non-Routine Applications / Government Correspondence
- Geological Review
- Cost Estimating / AFE Preparation
- Risk Assessment / Mitigation Planning
Execution
- Wellsite & Remote Supervision
- Temporary &Long-Term Suspension Implementation
- Cost Tracking & Daily Reporting
- Casing & Wellhead Integrity Assessments
- Fluid Displacement & Pressure Testing
- Annual Testing Requirements
Reporting
- Government Submissions
- Final Project Summary (Cost / Operational)

Surface & Downhole Abandonment Management

Planning
- Well Abandonment Program Development
- Non-Routine Applications / Government Correspondence
- Geological Review
- Cost Estimating / AFE Preparation
- Risk Assessment / Mitigation Planning
Execution
- Wellsite & Remote Supervision
- Downhole & Surface Abandonment Implementation
- Cost Tracking & Daily Reporting
Reporting
- Government Submissions
- Final Project Summary (Cost / Operational)

Specialties

Vent Flow Repair – Diagnosing and remediating surface casing vent flow issues to prevent gas leaks and environmental risks.
Gas Migration Mitigation – Implementing advanced cementing and isolation techniques to eliminate subsurface gas migration and surface seepage.
Remedial Cementing – Customized cementing solutions to restore well integrity, seal off problematic zones, and enhance abandonment success.
Porous Zone Isolation – Effective sealing strategies to prevent fluid movement and ensure zonal containment in high-permeability formations.
Casing Failure & Repair – Identifying and repairing compromised casing sections using innovative solutions like expandable liners, external casing patches, and resin-based remediation.
Section Milling – Precision milling operations to remove casing obstructions and enable effective plug & abandonment in challenging well conditions.
Bridge Plug & Cement Abandonment – Secure zonal isolation using bridge plugs combined with cement to meet regulatory requirements.
Resin Injection for Micro Annulus Sealing – Advanced polymer and resin solutions for sealing leaks in casing annuli and behind pipe.
Cut & Cap Services – Safe and compliant wellhead removal and surface restoration following abandonment.
Wireline & Coiled Tubing Interventions – Downhole diagnostics and remediation using logging, perforation, and mechanical isolation techniques.
High-Pressure Well Abandonment – Specialized solutions for isolating and permanently securing high-pressure reservoirs.
Horizontal Well Abandonments – Complex multi-zone isolation strategies for horizontal and multi-lateral wells.
Perforation & Squeeze Cementing – Targeted zone isolation and remediation using precision perforation and cement squeeze techniques.
Orphan & Legacy Well Abandonment – Safe and environmentally responsible decommissioning of older, inactive wells.

Why Choose Tristar?

Our team leverages industry best practices and innovative solutions to minimize liabilities, reduce costs, and protect the environment. Whether you need a single well abandonment or a multi-well decommissioning program, Tristar is your trusted partner in delivering safe, compliant, and efficient well closures.