N320, N300
NORD’s reamer-shoe is intended for applications in difficult geological conditions such as: weak formations, key seats and ledges, washout sections and/or swelling formations.
Recommended use include reciprocation/rotation of liner/casing to move down past obstruction and/or clean out sections of the well for proper cement placement.
Recommended use include reciprocation/rotation of liner/casing to move down past obstruction and/or clean out sections of the well for proper cement placement.
Technical properties
- PDC drillable
- helical blades made of highly durable tungsten carbide cutting structure
- location of blades ensures functionality of cutting features of reamer shoe both running in static and rotating in casing
- flow ports optimize circulation and removal of cuttings/debris from under the reamer-shoe
- left-handed configuration of blades reduces torque while rotating casing/liner
Variants
- available size range - from 101,6 mm to 762 mm (from 4 to 30 inches)
- any type of steel grades and/or thread types (GOST, API, Premium connections*)
- custom grades and sizes upon request
Equipment
Standart equipment:
- aluminum eccentric nose
- side cementing ports
Additional equipment variants:
- aluminum bullet nose
- aluminum eccentric free-rotating nose
- aluminum eccentric rotary fluid power drive nose
Additional options:
- upward spiral flow ports
Shoes
Shoes and couplings are usually used in the lower interval of the well and provide a reduction in the load on the mast when running the casing through zones with ledges and collapses in the wellbore, as well as landing sites for the lower and upper cementing plug. The back pressure valve prevents fluid from flowing into the casing when the pipe is lowered into the well and prevents cement entry back into the casing after injection, while allowing circulation through the casing.