Roller Reamer

API Oilfield Drilling Tool Roller Reamer (B, F, T type)

Roller reamer is designed for various reaming operation.It can be used in hard formation or abrasive formation in order to keep the standard hole size.When the bit size is under the standard sizeit can ream the well bottom size to standard hole size.Whether drilling the vertical well or directional well it can make the bit or casing come into the normal hole size.The features of roller reamer are small frictional resistance with well wallstrong abrasive resistance and long life.

Description
Inquiry

Hardfacing of roller:

Type T:Soft formation

Type F:Medium-hard formation

Type B:Hard formation

Hardfacing of roller.jpg

Roller Reamers are designed for reaming and stabilization in any type of formation. All parts of the tool are made of special alloy steel and heat treated for hardness. Drilling crews can easily replace any part in the field without using any special tools.

When ordering please specify:
Hole size;
String type or near bit type;
Drill collar size;
Top and bottom connection
Type of cutters.

Specification

Model	Hole Size mm(inch)	Roller O mm(inch)	Roller Length mm(inch)	Fishing Neck OD mm(inch)	ID mm(inch)	OAL mm(inch)	Conn.
							Upper	Lower	Remark
GL- I 149	149.2(5 7/8)	46(1 13/16)	200(7 7/8)	120.7(4 3/4)	31.8(1 1/4)	1400(55 1/8)	NC38	NC38	String
								3 1/2REG	Near Bit
GL- I 152	152.4(6)	50.8(2)	200(7 7/8)	120.7(4 3/4)	31.8(1 1/4)	1400(55 1/8)	NC38	NC38	String
								3 1/2REG	Near Bit
GL- I 216	215.9(8 1/2)	71(2 13/16)	200(7 7/8)	165.1(6 1/2)	44.5(1 3/4)	1730(68 7/64)	NC50	NC50	String
								4 1/2REG	Near Bit
GL-I 311	311.1(12 1/4)	100(3 15/16)	300(11 13/16)	203.2(8)	71.4(2 13/16)	1900(74 13/16)	6 5/8REG	6 5/8REG	String
									Near Bit
GL-I 444	444.5(17 1/2)	140(5 1/2)	304(12)	228.6(9)	76.2(3)	1730(68 7/64)	7 5/8REG	7 5/8REG	String
									Near Bit
GL-I 559	558.8(22)	158(6 7/32)	400(15 3/4)	241.3(9 1/2)	76.2(3)	2667(105)	7 5/8REG	7 5/8REG	String
									Near Bit
GL-I 610	609.6(24)	178(7)	400(15 3/4)	241.3(9 1/2)	76.2(3)	2800(110 15/64)	7 5/8REG	7 5/8REG	String
									Near Bit
GL- I 660	660.4(26)	178(7)	400(15 3/4)	241.3(9 1/2)	76.2(3)	3000(118 7/64)[	7 5/8REG	7 5/8REG	String
									Near Bit
GL-I 700	711.2(28)	178(7)	400(15 3/4)	241.3(9 1/2)	76.2(3)	2867(112 7/8)	7 5/8REG	7 5/8REG	String
									Near Bit