Thru-Tubing Intervention Tools
Thru-Tubing Tools for Integrated Well Intervention, Remediation & Integrity Operations
Tasman supplies thru-tubing tools as part of an engineered well intervention, integrity, and plug and abandonment (P&A) solution — not as standalone rental equipment.
Thru-tubing intervention allows operators to restore access, recover equipment, and remediate well integrity issues without pulling production tubing or mobilising a workover rig. Successful execution depends on precise tool selection, controlled energy application, effective debris management, and integration with pressure control, fluid handling, and surface systems.
Many thru-tubing operations originate from drilling- or completion-related events such as failed plugs, scale buildup, sand production, mechanical restrictions, or post-stimulation debris, reinforcing the need for continuity between drilling, intervention, and well integrity workflows.
Tasman supports thru-tubing intervention operations across oil & gas, geothermal, and mining sectors throughout Australia, New Zealand, and Papua New Guinea.
Typical Applications & Use Cases
Ten time-critical and executed under pressure constraints, requiring engineered planning and reliable tooling.
- Tubing and completion cleanouts
- Sand, scale, and debris removal
- Frac plug mill-out and post-stimulation cleanout
- Fishing of wireline, coiled tubing, plugs, and valves
- Well integrity diagnostics and remediation
- Packer milling and recovery
- Plug and abandonment (P&A) programs
These activities commonly precede or follow fishing, isolation, or pressure-control operations, reinforcing the importance of integrated planning across downhole tools, workstrings, fluids, and surface equipment. Early engineering involvement reduces escalation risk and overall intervention cost.
Products & Services
Thru-Tubing Downhole Motors – The Foundation of Rigless Intervention
Downhole motors form the foundation of most thru-tubing operations, providing the rotational energy required for milling, cleanouts, fishing preparation, and frac plug mill-out activities. Motor selection is application-critical and directly influences run life, milling efficiency, and overall success.
Key considerations include torque output, temperature rating, bearing design, elastomer compatibility, and flow characteristics.
- Standard Mud-Lubricated Motors – general cleanout and light milling operations
- Sealed Bearing Motors – improved reliability in higher solids environments
- Metal-to-Metal Bearing Motors – high-temperature and chemically aggressive wells
- High-Torque / High-Temperature Motors – frac plug mill-out and heavy milling
Thru-Tubing Fishing & Retrieval Tools – Recovering Equipment Inside Production Tubing
Fishing operations are a common component of thru-tubing intervention programs, allowing lost or failed equipment to be recovered without pulling the tubing string. These tools operate within restricted internal diameters and require precise engagement and controlled force application.
Fishing assemblies are frequently combined with motors, mills, jars, and accelerators to maximise recovery success.
- Overshots – flow-release and bulldog designs
- Internal Spears – slick catch and ITCO-type spears
- Wireline Grabs – recovery of broken cable or slickline
Thru-Tubing Milling & Cutting Tools – Restoring Access & Preparing for Recovery
Milling tools are used to remove obstructions, dress fish tops, and restore internal diameter when thru-tubing recovery is not immediately possible. Milling operations are central to frac plug mill-out, fishing preparation, and wellbore remediation workflows.
Controlled milling reduces debris generation and protects downstream equipment and completions.
- Junk Mills – remove metal debris and irregular obstructions
- Taper Mills – dress fish tops and polish restrictions
- Pilot Mills – stabilise milling assemblies
- Under-reamers – enlarge bore below restricted diameters
- Specialty / Custom Mills – engineered for specific applications
Thru-Tubing Jars, Intensifiers & Impact Tools – Controlled Energy Application in Restricted IDs
Jarring tools are used to free stuck equipment during thru-tubing intervention by applying controlled axial force in restricted internal diameters. Their effectiveness depends on correct placement, stroke length, and compatibility with the workstring.
These tools are commonly required during fishing and milling operations.
- Hydraulic Thru-Tubing Jars – controlled impact in restricted IDs
- Intensifiers – increase jarring energy
- Percussion Tools – assist debris mobilisation
Thru-Tubing Isolation & Flow Control Tools – Supporting Well Integrity & Remedial Operations
Isolation tools establish temporary or permanent barriers during thru-tubing intervention, supporting diagnostics, remediation, and abandonment workflows. These tools often bridge directly into service packer deployment or cementing operations.
- Inflatable Bridge Plugs – retrievable or permanent
- Circulating Subs – improve flow paths during intervention
Specialty Thru-Tubing Tools & Accessories – Precision Control & Custom Solutions
Isolation tools establish temporary or permanent barriers during thru-tubing intervention, supporting diagnostics, remediation, and abandonment workflows. These tools often bridge directly into service packer deployment or cementing operations.
- Inflatable Bridge Plugs – retrievable or permanent
- Circulating Subs – improve flow paths during intervention
Integrated Thru-Tubing Intervention Workflows
Thru-tubing operations rarely occur in isolation and commonly integrate with fishing, isolation, pressure control, and abandonment activities. Successful execution depends on aligning downhole tools, fluids, containment systems, and surface equipment.
- Fishing Tools
- Service Packers & Completion Tools
- Drilling Rental Tools
- Pressure Control & Flow Iron Equipment
- Frac Tanks & Fluid Storage Solutions
This integrated approach reduces interface risk, improves execution certainty, and supports faster decision-making during rigless intervention programs.
Talk to Tasman Early
Tasman supplies thru-tubing tools as part of an integrated, engineering-led well intervention solution — ensuring full compatibility with drilling workstrings, fishing assemblies, pressure control equipment, fluid handling systems, and downstream isolation requirements.
Early engagement enables thru-tubing operations to be engineered as a complete system rather than individual components — reducing non-productive time, limiting escalation risk, and strengthening overall wellsite execution.