1. For well casing with collar cementing liner with two-stage cementing the following equipment is used:
2. PHZSC hanger;
3. Low-friction and spring centralizers;
4. Collar MMC1;
5. PGMC packer;
6. FS or FB filters (it depends on collector resistance);
7. Check valve (only in case when FS filter is used);
8. Shoe BK-M.