For well casing with noncementing liner with washing through a shoe and zonal isolation by swellable packers
the following assembly is used:
1. PHN UIF-type hanger;
2. Low-friction and spring centralizers;
3. PGP packers;
4. UIF2 sealing unit;
5. FS or FB filters (it depends on collector resistance);
6. Check valve (only in case when FS filter is used);
7. Shoe.
After liner assembling, the tubing string with a special rod at the exact part is RIH till its setting into UIF2 sealing
unit.
EXAMPLES OF ASSEMBLIES
- Well casing with collar cementing liner with two-stage cementing
- Well casing with collar cementing liner with packaging for MSHF and zonal isolation by hydrqulic packers
- Well casing with collar cementing liner with packaging for MSHF and zonal isolation by swellable packers
- Well casing with collar cementing liner with additional isolation of upper zones by inflatable packers
- Well casing with noncementing liner
- Well casing with noncementing liner with packaging for MSHF and zonal isolation by swellable packers
- Well casing with noncementing liner with zonal isolation by inflatable packers
- Well casing with cementing liner with continuous cementing followed by multistage hydraulic fracturing
- Well casing with cementing liner with continuous cementing with zonal isolation by inflatable packers
- Well casing with noncementing liner with washing through a shoe with an option of rotating during running in and zonal isolation by swellable packers
