Product Overview
Our Internal Slip Connector is professional coiled tubing coupling for connecting CT pipe to downhole BHA tools. Different from external slip connectors with enlarged outer diameter, its internal clamping design keeps OD consistent with coiled tubing, perfectly applicable to slimhole, necked casing and narrow nipple passages without stuck risk. Adopts special non-rotational drive tooth slip structure, no grub screws or shear pins. High bidirectional torque transmission capacity for milling, fishing and heavy pulling work. Only four main parts, easy field assembly without special torque tools. Built-in lock nut prevents loose connection caused by downhole jarring. Equipped with dual O-ring pressure sealing system, high-strength alloy steel body supports standard & H2S sour well environments, slips are detachable for quick maintenance on site.
Core Features & Benefits
- Slim outer diameter consistent with CT, smooth running in restricted ID wells
- Drive tooth non-rotational slips, stable bidirectional torque output
- No shear pin structure, eliminate underground sudden failure risk
- Built-in lock nut anti-loose design against vibration & jarring
- Dual internal sealing, maximum working pressure up to 5000 PSI
- Hardened replaceable slips, match various CT wall thickness
- Simple assembly, no special field installation tools required
- H2S corrosion-resistant material optional for sour service
- Interchangeable AMMT / PAC / REG thread sub
- Custom sizes 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| C203-007-08 | 1 1/2" | 1.687" | 0.687" | H2S | 1" AMMT Pin | 10 1/2" | 18,000 lbs | 350 ft-lbs | 5,000 PSI | 0°F ~ 350°F |
| C203-030-09 | 1 1/2" | 2.25" | 0.687" | H2S | 1 1/2" AMMT Pin | 10 1/2" | 33,900 lbs | 650 ft-lbs | 5,000 PSI | 0°F ~ 350°F |
| C203-036-08 | 1 3/4" | 1.750" | 0.687" | H2S | 1" AMMT Pin | 10 1/2" | 23,000 lbs | 420 ft-lbs | 5,000 PSI | 0°F ~ 350°F |
| C203-040-09 | 1 3/4" | 2.25" | 0.687" | H2S | 1 1/2" AMMT Pin | 10 1/2" | 30,000 lbs | 780 ft-lbs | 5,000 PSI | 0°F ~ 350°F |
| C203-041-09 | 2" | 2.25" | 0.900" | H2S | 1 1/2" AMMT Pin | 11" | 40,000 lbs | 1,050 ft-lbs | 5,000 PSI | 0°F ~ 350°F |
| C203-041-23 | 2" | 2.875" | 0.900" | H2S | 2 3/8" PAC Pin | 11" | 40,000 lbs | 1,200 ft-lbs | 5,000 PSI | 0°F ~ 350°F |
Typical Applications
- Coiled tubing drilling & high-torque milling
- Downhole fishing, junk retrieval & sand washing
- Gas lift intervention operation
- Slimhole & restricted ID casing maintenance
- Onshore & offshore sour H2S well service
- Deviated & extended reach coiled tubing programs
Advantages Over External Slip Connectors
- No outer diameter expansion after assembly, eliminate stuck risk in narrow bore sections
- Even stress distribution on CT inner wall, reduce pipe deformation damage
- Fewer exposed external parts, lower erosion from abrasive well fluid
- Compact 4-piece structure, shorten overall BHA assembly length
- Simple single-person makeup to cut rig operating cost
