Description
The hydraulic frac sleeve is designed for hydraulic fracturing with the possibility of multiple closure and opening of the sleeve. With the help of a pusher key, lowered onto the tubing or coiled tubing (after its positioning), due to the axial force, the windows of the hydraulic fracturing coupling are closed / opened.
After switching the hydraulic fracturing sleeve, the pusher key automatically disengages the inner clutch sleeve. The sliding parts of the sleeve are treated with a special compound for the durability of the mechanism. High performance of the system tightness is achieved thanks to the PEEK spacers. The hydraulic fracturing sleeve design can be retrofitted with a seat for ball activation.
Characteristics
- Large area of circulation holes, not less than 7500 mm2
- Adjustable effort of opening and closing windows from 500 kg.
- High differential pressure not less than 70 MPa.
- Sliding mechanism treatment for durability of use.
- Seal material - HNBR
- Number of opening-closing cycles - at least 10 times
Advantages
- Full bore coupling
- Port control by ball or control key
- High differential pressure version
- Compact design of main standard sizes.
- Simple and reliable solution for multistage fracturing