Cement head is a device fitted to the top joint of a casing string to hold a cement plug before it is pumped down the casing during the cementing operation. In most operations, a bottom plug is launched before the spacer of cemetn slurry. The top plug is released form the cement head after the sapcer fluid. Most cement heads can hold both the top and bottom plugs. A manifold incorporated into the cement head assembly allows connection of a fluid circulation line.
Charateristics
1. Compact, easy to connect
2. Indicator monitoring stopper running
3. Body and short sleeve button connected by ladders
4. High strength materials and high thread to ensure it meets quality and performance requirements
5. Manifold connections, as required by the selection union.
6.Quick-latch adapter is used to provide easier, faster and safer connection with API cementing casing.
7. Balance pipe is developed.
Technical Parameters:
Specifications, (in) | 5½" | 6 5/8" | 7" | 7 5/8" | 9 5/8" | 10¾" | 13 3/8" | |
Overall Length, mm | 1460 | 1500 | 1500 | 1550 | 1750 | 1750 | 1780 | |
Manifold | 2"Union | |||||||
I.D. of Plug Container, mm | Φ125 | Φ150 | Φ160 | Φ175 | Φ225 | Φ250 | Φ320 | |
Length of Plug Container, mm | 400 | 450 | 450 | 450 | 550 | 550 | 600 | |
Working Pressure, MPa | 35,50 | 35,50 | 35,50 | 35,50 | 35,50 | 35 | 35 |
casing cement heads