Roller reamer is designed for various reaming stabilization in drilling operation. Especially it
can perform the double functions of centralization and reaming when drilling in very abrasive
formations. This is a versatile tool which can be used for different hole sizes ranging from 4-5/8" to 36" by selecting proper rollers and simply adjust the blocks. In addition, its service
life can be extended by replacing new rollers when the old rollers are worn and become
smaller.
can perform the double functions of centralization and reaming when drilling in very abrasive
formations. This is a versatile tool which can be used for different hole sizes ranging from 4-5/8" to 36" by selecting proper rollers and simply adjust the blocks. In addition, its service
life can be extended by replacing new rollers when the old rollers are worn and become
smaller.
The body is made of modified alloy steel, fully heat treated to 285~341 Brinell hardness and
54J minimum impact strength. Connections are phosphatized, coated with thread dope and
equipped with thread protectors, and are accord with API standard.
54J minimum impact strength. Connections are phosphatized, coated with thread dope and
equipped with thread protectors, and are accord with API standard.
Three different types (S, M and H) of rollers are offered:
Type S: Milled, machined with sharp teeth for maximum reaming in soft formations.
Type M: Milled, machined and flat hard faced teeth, ideal for medium to medium hard
formations.
formations.
Type H: Equipped with pressed-in tungsten carbide buttons, for hard formations.
All types of cutters are made of special alloy steel and full heat treated. They are set
vertically in the body eliminating drag or sliding on the wall of the hole being drilled.
vertically in the body eliminating drag or sliding on the wall of the hole being drilled.