4JW SWIVEL
In the oil drilling industry, the “4JW Swivel” is a type of rotary joint used to connect the drill pipe and the drill bit. Here’s an explanation of its uses and functions
Parameter of 4JW SWIVEL
TECHNICAL DATA
| MODEL | LENGTH | WT/LB | HOSE CONN. | LOWER CONN. LH OR RH NPT | WATER COURSE | WORKING PRESSURE |
| 4JW | 13” W/O BAIL | 50 | 2-½” FEMALE | 2-½” PIN | MAX. 2-¼” | 1500PSI |
CAPACITIES & SAFE DRILL DEPTHS
| MODEL | STATIC LOAD | ROTATING LOADS | ROTATING SPEED | DRILL DEPTH | PIPE SIZE |
| 4JW | 20,000 LBS. | 10,500 LBS. | 100 RPM | 3000 FT | 2” STANDARD PIPE |
- For all types of drilling
- For rotating speed to 500 RPM
- Constructed from high grade alloy steel
- Grease lubricated thrust ball bearings in a sealed housing
- Available with or without stiff bail
- Compact
- Simple design allows for easy filed maintenance and repair
- Large watercourse， 2″ and 2 ¼”
- Choice of lower connection threads
- Working pressure to 1500 PSI
PART LIST
| PART NUMBER | DESCRIPTION | QTY. REQ. |
| 4JW-2040-XX | WESTERN SWIVEL, BAIL, 2″ NPT FEMALE HOSE CONNECTION WITH 2 ½” NPT LH PIN LOWER CONNECTION | |
| ADD FOR STIFF BAIL | ||
| ADD FOR SPECIAL LOWER CONNECTION | ||
| 4JW-04 | GOOSENECK, NO BAIL, 2 ½” NPT FEMALE H/C | 1 |
| 4JW-04B | GOOSENECK, BAIL, 2 ½” NPT FEMALE H/C | Option |
| 4JW-07 | +HOUSING SEAL. UPPER | 2 |
| 4JW-08TA-LP | SPINDLE, 2 ½” NPT LH PIN LOWER CONN | 1 |
| 4JW-08EA-LB | SPINDLE, 2″ NPT LH BOX LOWER CONN | Option |
| 15WX-12 | +BEARING | 2 |
| 4JW-14 | BEARING HOUSING | 1 |
| 4JW-14A | CAP SCREW W/LOCK WASHER | 4 |
| 4JW-20 | + PACKING SET | 1 |
| 4JW-20-416 | PACKING SET LOW PRESSURE | Option |
| 4JW-20-FABRIC | + ADAPTER, MALE (FABRIC) | 1 |
| 4JW-20-STEEL | ADAPTER, MALE (STEEL) | Option |
| 4JW-21 | LANTERN RING | 1 |
| 4JW-23 | PACKING ADJUSTING GLAND | 1 |
| 4JW-24 | PACKING ADJUSTING BOLT AND NUT | 2 |
| 4JW-25 | +WASHPIPE (SPINDLE NUT) | 1 |
| 4JW-25A | + SET SCREW, WASHPIPE | 1 |
| OR-230 | + O’RING, WASHPIPE | 1 |
| 4JW-40R | REPAIR KIT +Included in Repair Kit |
In the oil drilling industry, the “4JW Swivel” is a type of rotary joint used to connect the drill pipe and the drill bit. Here’s an explanation of its uses and functions:
Transmit Torque and Rotational Force:The primary function of the 4JW Swivel is to transmit torque and rotational force from the drill pipe to the drill bit. This allows the bit to rotate and penetrate the formations encountered in the wellbore. Effective transmission of torque is essential for efficient drilling operations.
Reduce Drill Pipe Twisting: During drilling, the drill pipe may experience twisting due to resistance from underground formations. The 4JW Swivel helps minimize this twisting by allowing the drill string to rotate freely, thereby extending the lifespan of the drill pipe and reducing maintenance costs.
Maintain Drilling Fluid Circulation: The 4JW Swivel is equipped with passages that allow drilling fluid to circulate through the rotary joint and back into the surface drilling fluid circulation system. This circulation is crucial for cleaning the wellbore, carrying drill cuttings to the surface, cooling the drill bit, and maintaining wellbore stability.
Connect Drill Bit and Drill Pipe: Positioned at the top of the drill string, the 4JW Swivel serves as a connection point between the drill pipe and the drill bit. It ensures a secure connection while allowing rotational movement, enabling efficient drilling operations.
Overall, the 4JW Swivel plays a vital role in oil drilling by facilitating torque transmission, reducing drill pipe twisting, maintaining drilling fluid circulation, and connecting the drill bit to the drill pipe. This helps ensure smooth and efficient drilling operations while enhancing safety and productivity.
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