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Casing Shoes & Rod Shoes

Casing shoes are used for drilling down or positioning the casing tubes in a borehole.

Casing shoes have cutting elements on the face of the crown and outside diameter, while the inside diameter is smooth. The inner diameter of the casing shoe is sufficiently large to permit free passage of drill bits and core barrels in corresponding sizes.

For installing casing in soil, clay and other soft materials Tungsten Carbide Casing Shoes are the most economical choice. For installing casing into harder materials Diamond Impregnated Casing Shoes are the best choice.

We use only the best quality materials in all our casing shoes. Our grade of Tungsten Carbide has a very high wear resistance and high Transverse Rupture Strength (TRS), meaning that TC inserts are less prone to chipping and fracture.

In Diamond Impregnated Casing Shoes, we use very good quality synthetic diamonds embedded in a hard, abrasive-resistant matrix. The depth of the diamond surface is a generous 9mm, giving a long service life.

Casing Shoes are manufactured in all regular Metric and DCDMA Casing sizes.

Diamond impregnated rod shoes are available for all wireline drill rods, when used as casing.

Technical Data

A.  Metric Casing Shoes

Specification

Casing Nominal Diameter (mm)

46

56

66

76

86

101

116

131

146

Set O.D. (mm)

46.0

56.0

66.0

76.0

86.0

101.0

116.0

131.0

143.0

Set I.D. (mm)

37.0

47.0

57.0

67.0

77.0

88.0

103.0

118.0

133.0

 

B. DCDMA Casing Shoes - W and X Series

Specification

Casing Designation

E

A

B

N

H

P

S

U

Z

Set O.D.(mm)

47.6

59.6

75.3

91.8

117.5

143.5

172.5

198.1

223.8

Set I.D. (mm)

38.0

48.2

60.2

76.0

99.7

123.4

146.8

175.4

200.8

 

C. Wireline Rod Shoes

Specification

Wireline Rod Type

BWL

NWL

HWL

PWL

GBS

Set O.D. (mm)

59.6

75.3

91.8

117.5

143.5

Set I.D. (mm)

46.0

60.5

76.3

100.2

125.5

 

Technical Standards

Manufactured in accordance with the following International Standards:

ISO 3552-1: 1992 Rotary core diamond drilling equipment, System B, Metric units

ISO 3551-2:1992 (BS 4019-4:1993) Rotary core drilling equipment, Specification for System A, Inch units

ISO 10097-2:1999 (R07) Wireline diamond core drilling equipment. System A. Inch units