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钻井工具

钻井工具

滚轮稳定器

时间:2017-3-21 13:48:45

滚轮稳定器

Roller Reamer

滚轮稳定器用于各种绞孔作业中,可以在硬地层或研磨性岩层中使用,保持井眼的标准直径。当钻头磨损到小于标准尺寸时,滚轮稳定器可以扩大井底井径达到标准井径。无论钻直井还是定向井,三滚轮稳定器可以确保后面的钻头或套管将能下入正常的井径尺寸,滚轮稳定器的特点是与井壁摩擦阻力小,耐磨性强,使用寿命长。

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 size, it 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 wall, strong abrasive resistance and long life.

Hardfacing of roller:

Type T: Soft formation

Type F: Medium-hard formation

Type B: Hard formation

Specifications

Model

Hole Size
mm
(inch)

Roller
Diameter
mm
(inch)

Roller
Length
mm
(inch)

Fishing
Neck OD mm
(inch)

ID
mm
(inch)

OAL
mm
(inch)

Conn.

Upper

Lower

Remark

WG-149

149.2
(5 7/8)

46
(1 13/16)

200
(7 7/8)

120.7
(4 3/4)

31.8
(1 1/4)

1600
(63)

NC38

NC38

String

3 1/2

REG

Near Bit

WG-156

155.6
(6 1/8)

50.8
(2)

200
(7 7/8)

120.7
(4 3/4)

31.8
(1 1/4)

1600
(63)

NC38

NC38

String

3 1/2

REG

Near Bit

WG-216

215.9
(8 1/2)

71
(2 13/16)

200
(7 7/8)

165.1
(6 1/2)

44.5
(1 3/4)

1800
(70 7/8)

NC50

NC50

String

4 1/2

REG

Near Bit

WG-311

311.1
(12 1/4)

100
(3 15/16)

300
(11 13/16)

203.2
(8)

57.2
(2 1/4)

1900
(74 13/16)

6 5/8

REG

6 5/8

REG

String

Near Bit

WG-444

444.5
(17 1/2)

140
(5 1/2)

304
(11 21/31)

228.6
(9)

76.2
(3)

2100(
82 43/64)

7 5/8

REG

7 5/8

REG

String

Near Bit