Changsha Drilling Machinery CO., LTD

Contact Us

Name: Perry Tan
Tel: 0086-731-84077805
Fax: 0086-731-84072772
E-mail: csdrillingtools@vip.126.com
E-mail: info@csdrillingtools.com
Add: 5# Panpan road, economic development zone, Changsha, Hunan, China. Zip 410100
Skype: csdrillingtools
QQ: 2522716948
Skype: csdrillingtools QQ: 2522716948 csdrillingtools@vip.126.com info@csdrillingtools.com

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Description of casing tube:

This kind of casing tube is able to stabilize the borehole during the drilling process. It has two different functions:
1): it can help to prevent the well walls from collapsing, as well as to control the formation fluids.
2): it enables both well control equipment and down hole equipment to more easily achieve their functions

Besides, it suits a wide variety of well diameters as well as different material grades, it is resistant to chemical erosion, and it can withstand various external forces, like collision, bursting, tensile strength, etc.

Note:

1): during the operation process, workers need to check whether there are any damages at the thread connection point of the casing tubes, if there are damages, please replace it immediately to avoid tripping when using this casing tube
2): suitable casing tube is always required, which can prevent it from being hit or friction
3): when connecting the casing tubes, thread oil is quite necessary

Metric series casing tubes size chart

Size

Outer diameter (mm)

Inner diameter (mm)

46

44.15

37.15

56

54.15

47.15

66

64.25

57.25

76

74.25

67.25

86

84.25

77.25

101

98

88.3

116

113

103.3

131

128

118.3

146

143

133.3

 

 

 

Flush-jointed W series casing tubes size chart

Size

Outer diameter

Inner diameter

Inch

mm

Inch

mm

BW

2.874

73

2.374

60.3

NW

3.5

88.9

3

76.2

HW

4.5

114.3

4

101.5

PW

5.5

139.7

5

127

 

 

 

Flush-jointed X series casing tubes size chart

Size

Outer diameter

Inner diameter

Inch

mm

Inch

mm

NX

3.5

88.9

3

80.5

HX

4.5

114.3

3.937

104.4

PX

5.5

139.7

4.867

127

 

 

 

Flush-jointed water well casing tubes size chart (B.S.879)

Size

Outer diameter

Inner diameter

Inch

mm

Inch

mm

4”

4 1/2”

114.3

3 7/8”

98.3

5”

5 1/2”

139.7

4 7/8”

123.7

6”

6 5/8”

168.3

5 7/8”

149.3

8”

8 5/8”

193.7

7 7/8”

174.7

 

Product Show
W Casing Tube
W Casing Tube
WT Casing Tube
WT Casing Tube
Other size of casing tube
Other size of casing tube
Casing Clamp
Casing Clamp
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