Product Overview
Our downhole accelerator is a critical energy-storing downhole tool assembled upstream of hydraulic or mechanical jars, widely deployed for coiled tubing, slickline workover and fishing jobs. Its internal high-performance spring assembly accumulates tensile energy as operators pull the tubing string from surface; once the jar actuates, stored spring energy is released instantly to generate far stronger impact force, freeing stuck tubing, packers, bridge plugs and well debris efficiently. The tool adopts segmented alloy housing with slotted spring containment section, enabling stable compression and rebound of internal spring packs. Heat-treated forged steel components withstand repeated cyclic impact loading. Multi-stage internal sealing keeps sand, crude oil and corrosive formation fluid away from spring assemblies to extend service life. Sour-grade material options comply with NACE MR0175 / ISO 15156 standards for H₂S and CO₂ corrosive wells.
Core Features & Benefits
- High-capacity internal spring pack stores tensile energy to multiply jar impact output
- Segmented modular housing allows easy disassembly, spring inspection and on-site replacement
- Heat-treated forged alloy steel for repeated cyclic impact load durability
- Multi-stage internal sealing against sand, crude oil and H₂S corrosive fluids
- NACE MR0175 / ISO 15156 compliant sour service material options
- Reduces required surface pulling load and minimizes coiled tubing fatigue
- Field-proven design for deviated, horizontal and extended-reach well profiles
- Available in standard CT sizes and custom thread connections
Technical Specifications
| Model | CT Size | Tool OD | Connection | Overall Length | Max Pull Load | Working Pressure | Max Temp |
|---|---|---|---|---|---|---|---|
| ACC-150 | 1 1/2" | 1.687" | 1" AMMT | 36" | 20,000 lbs | 5,000 PSI | 350°F |
| ACC-175 | 1 3/4" | 1.750" | 1" AMMT | 36" | 25,000 lbs | 5,000 PSI | 350°F |
| ACC-200 | 2" | 2.25" | 1 1/2" AMMT | 38" | 35,000 lbs | 5,000 PSI | 350°F |
| ACC-250 | 2 3/8" | 2.875" | 2 3/8" PAC | 40" | 45,000 lbs | 5,000 PSI | 350°F |
Typical Applications
- Stuck coiled tubing retrieval with jarring operations
- Downhole junk fishing and fallen hardware recovery inside casing
- Unseating stuck bridge plugs, packers via intensified jar impact
- Fishing work for deviated and horizontal wells with high string friction
- Intervention operations for H₂S-containing sour oil & gas wells
- Heavy-duty jarring tasks conducted with slickline / wireline tool strings
- Freeing tubing embedded in compacted sand deposits
Advantages Over Conventional Fishing Tools
- Amplifies jar impact force by storing tensile energy in spring pack
- Reduces surface pulling load requirement, minimizing CT fatigue
- Modular segmented housing enables fast on-site spring inspection and replacement
- Multi-stage sealing protects internal components from sand and corrosive well fluids
- NACE MR0175 compliant H₂S service options for sour well applications
- Proven performance in deviated, horizontal and extended-reach wells
