Well casing with collar cementing liner with additional isolation of upper zones by inflatable packers

For well casing with collar cementing liner with additional isolation of upper zones by inflatable packers the following
assembly is used:

1. PHCZ or PHGMC or PHRC hanger;
2. PGP packer (one or several);
3. Cementing basket CK;
4. Low-friction and spring centralizers;
5. PGMC packer;
6. FS or FB filters (it depends on collector resistance);
7. Valve KOSH2;
8. Shoe BK-M.