Product Overview
Our Composite Connector is an innovative downhole coupling that merges the proven structure of dimple connectors and external slip connectors into one unified assembly. Operators first form dimples on coiled tubing via standard crimping equipment, then engage the external slip assembly to create dual mechanical locking. This dual-lock design delivers far stronger tensile and torque transfer performance than single-structure connectors, making it ideal for demanding coiled tubing drilling, milling, fishing and heavy pulling operations. Precision-machined forged alloy steel body incorporates multi-port hydraulic inspection channels and independent seal cavities. The dual locking system distributes operational stress across both dimpling indentations and hardened slip teeth, greatly lowering connection failure risk under sustained torsion, jarring and heavy tension. Replaceable slip components, robust multi-ring sealing and optional sour-grade metallurgy allow reliable deployment across conventional wells, high-pressure wells and H₂S corrosive well conditions.
Core Features & Benefits
- Dual locking mechanism combining dimple fixation + external slip clamping for maximum connection security
- Superior tensile and bidirectional torque transmission outperforms standalone dimple or slip connectors
- Distributed load bearing reduces fatigue damage to coiled tubing and extends service life of both tubing and connector
- Built-in hydraulic test ports for quick independent sealing verification before running downhole
- Multi-ring elastomer sealing system for stable high-pressure fluid isolation
- Hardened, field-replaceable slip inserts to cut long-term maintenance expenses
- Forged alloy main body with premium heat treatment for strong wear and impact resistance
- H₂S resistant material configurations available for sour well intervention projects
- Interchangeable AMMT / PAC / REG thread subs to match common bottom hole assembly connections
- Full size customization for 1", 1-1/4", 1-1/2", 1-3/4", 2" coiled tubing
Technical Specifications
| Model No. | CT Size | Tool OD | Min ID | Service Type | Standard Connection | Overall Length | Max Tensile Load | Max Torque | Working Pressure | Temperature Range |
|---|---|---|---|---|---|---|---|---|---|---|
| CMP-100-08 | 1" | 1.625" | 0.500" | Standard | 3/4" AMMT Pin | 12" | 45,000 lbs | 850 ft-lbs | 10,000 PSI | 0°F ~ 350°F |
| CMP-150-09 | 1 1/2" | 2.125" | 0.750" | H₂S | 1 1/2" AMMT Pin | 12.5" | 68,000 lbs | 1,320 ft-lbs | 10,000 PSI | 0°F ~ 350°F |
| CMP-175-09 | 1 3/4" | 2.375" | 1.000" | H₂S | 1 1/2" AMMT Pin | 12.5" | 75,000 lbs | 1,580 ft-lbs | 10,000 PSI | 0°F ~ 350°F |
| CMP-200-23 | 2" | 2.875" | 1.250" | H₂S | 2 3/8" PAC Pin | 13" | 86,000 lbs | 1,850 ft-lbs | 10,000 PSI | 0°F ~ 350°F |
Note: Custom CT sizes, thread types, pressure ratings and sour service material options are available upon request.
Typical Applications
- High-load coiled tubing rotary drilling and window sidetracking
- Heavy-duty downhole milling, scale removal and junk fishing operations
- High-tension stuck pipe releasing and deep well pulling work
- High-pressure stimulation operations including acidizing and jetting
- Onshore / offshore sour well coiled tubing intervention
- Extended reach horizontal well workover with repeated torsional loading
Advantages Over Single-Structure Connectors
- Dual load-bearing structure eliminates single locking point failure risks common for pure dimple or pure slip connectors
- Stress spread across dimples and slip teeth to reduce tubing stress concentration and tubing rupture probability
- Higher torque transmission limit allows longer continuous milling runs without connection slippage
- Independent test ports simplify sealing inspection, lower pre-job preparation time on rig site
- Modular slip parts can be replaced separately instead of full connector replacement to reduce operational cost
FAQ
Q: How does this composite connector install on coiled tubing?
A: First create standard dimples on tubing outer wall with dedicated dimple pressing tools, then mount the external slip assembly and tighten threaded components to complete dual locking installation. Standard field tool sets are sufficient for assembly.
Q: What operational scenarios make this composite connector a better choice than regular connectors?
A: It is recommended for high torque milling, heavy fishing, deep horizontal well operations where conventional single-structure connectors face higher slip or breakage risk. The dual locking design delivers far higher safety margin.
Q: Can you manufacture sour service versions compliant with NACE standards?
A: Yes, we supply NACE MR0175 / ISO 15156 certified sour variants, full material test certificates will be provided alongside product delivery for export clearance.
Q: What is your production lead time?
A: In-stock standard models ship within 3–7 working days; fully customized composite connectors require 15–25 working days depending on order quantity and machining requirements.
Get Custom Specification Sheet & Ex-Factory Bulk Price
We are professional manufacturer for full series coiled tubing downhole tools with strict multi-stage quality inspection and complete certification documentation. Share your coiled tubing dimension, working pressure, well service conditions with our engineering team, you will receive detailed datasheet and customized quotation within 24 hours.
