Technical equipment sets for multistage hydraulic fracturing vary in a liner well casing type:
• without cementing;
• with collar cementing;
• with continuous cementing.
There are also different types of horizontal sector zonal isolation:
• with the help of swellable packers;
• with the help of hydro-mechanical packers.
A set for well casing with a liner without cementing with the following multistage hydraulic fracturing
includes the following technical equipment:
1. Shoe;
2. Ball check valve KOSH2;
3. Frac port FPZN
4. Required amount of packers (swellable or hydro-mechanical) and cfrac ports FPZ which are opened
with balls;
5. Noncemented liner hanger PHN.
A set for well casing with a liner with cementing with the following multistage hydraulic fracturing includes
the following technical equipment:
1. Shoe;
2. Ball check valve KOSH2;
3. Frac port FPZN;
4. Required amount of packers (swellable or hydro-mechanical) and frac ports FPZ which are opened
with balls;
5. Seat-trap SL;
6. Collar cementing packer PGMC or collar for collar cementing for hydraulic fracturing MMC-G;
7. Cemented liner hanger PHRC or PHCZ or PHGMC.
After well casing with a liner and normalization are finished, the connection with a liner is performed with
a hydraulic fracturing device UGRH, wellhead set-up and frac fitting are mounted.

Actually multistage hydraulic fracturing is performed with frac ports FPZ which are actuated one by one at
the right time. Collars are opened with internal overpressure build-up in a pass by pumping pressing balls
if different diameter beginning with the smallest one and their setting to seats with different drift diameter.
FPZN hydraulically opening collar is used for the first interval hydraulic fracturing. Zonal isolation in outer
annular space is performed with hydro-mechanical and swellable packers included into assembly RIH.
Equipment sets are delivered for liners 102 and 114 mm and can be used for up to 10 intervals of hydraulic
fracturing at operational pressure up to 70 MPa.