Understanding the Different Types of Oil Casing and Their Benefits
Oil casing is an essential part of the oil and gas industry. It is used to protect the wellbore from collapsing and to ensure that the oil and gas can flow freely. But there are many different types of oil casing, each with its own unique benefits.
Let’s start with the most common type of oil casing: steel casing. Steel casing is strong and durable, making it ideal for deep wells. It is also relatively inexpensive, making it a popular choice for many oil and gas companies.
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Next, there is fiberglass casing. Fiberglass casing is lightweight and corrosion-resistant, making it a great choice for shallow wells. It is also relatively inexpensive, making it a great option for those on a budget.
Labels a
Calculated Mass c
Nominal Linear Mass T& C b,c
Wall Thick- ness
em, Mass Gain or Loss Due to End Finishing d
Outside Diameter
Inside Diameter
Drift Diameter
Plain- end
kg
Round Thread
Buttress Thread
wpe
D
kg/m
t
D
mm
kg/m
Short
Long
RC
SCC
mm
mm
mm
1
2
3
4
5
6
7
8
9
10
11
12
8 5/8
24
219.08
35.72
6.71
205.66
202.48
35.14
10.93
—
—
—
8 5/8
28
219.08
41.67
7.72
203.64
200.46
40.24
10.07
— 12.44
— 12.57
— 2.51
8 5/8
32
219.08
47.62
8.94
201.2
200.02 e 198.02 195.58
46.33
9.39
12.44
12.57
2.51
8 5/8
32
219.08
47.62
8.94
201.2
193.68 e
46.33
9.39
11.6
11.68
1.62
8 5/8
36
219.08
53.57
10.16
198.76
193.04
52.35
8.72
10.73
10.77
0.71
8 5/8
40
219.08
59.53
11.43
196.22
190.5
58.53
—
10.73
10.77
0.71
8 5/8
40
219.08
59.53
11.43
196.22
187.6
58.53
—
9.88
9.87
–0.20
8 5/8
44
219.08
65.48
12.7
193.68
64.64
—
8.88
8.85
–1.21
8 5/8
49
219.08
72.92
14.15
190.78
71.51
—
9 5/8
32.3
244.48
48.07
7.92
228.6
224.66
46.2
11
— 14.48
— 13.87
— 2.74
9 5/8
36
244.48
53.57
8.94
226.6
222.63
51.93
10.36
13.59
12.97
1.84
9 5/8
40
244.48
59.53
10.03
224.4
222.25 e 220.45 218.41 218.41 216.54 216.54
57.99
9.69
13.59
12.97
1.84
9 5/8
40
244.48
59.53
10.03
224.4
215.90 e
57.99
9.69
12.78
12.15
1.01
9 5/8
43.5
244.48
64.74
11.05
222.4
215.90 e 212.83 212.83
63.61
—
12.84 f
12.15
1.01
9 5/8
43.5
244.48
64.74
11.05
222.4
212.72 e
63.61
—
12.03
11.39
0.25
9 5/8
47
244.48
69.94
11.99
220.5
212.72 e 210.29 210.29 209.58 206.38 203.23 200.02
68.75
—
12.09 f
11.39
0.25
9 5/8
47
244.48
69.94
11.99
222.5
68.75
—
10.57
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
10.63 f
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
10.57
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
10.63 f
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
9.58
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
9.65 f
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
9.58
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
9.65 f
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
—
—
—
9 5/8
59.4
244.48
88.4
15.47
213.5
87.37
—
—
—
—
9 5/8
64.9
244.48
96.58
17.07
210.3
95.73
—
—
—
—
9 5/8
70.3
244.48
104.62
18.64
207.2
103.82
—
—
—
—
9 5/8
75.6
244.48
112.51
20.24
204
111.93
—
Finally, there is PVC casing. PVC casing is strong and durable, making it ideal for deep wells. It is also relatively inexpensive, making it a great choice for those on a budget.
No matter which type of oil casing you choose, you can be sure that it will provide the protection and reliability you need. Each type of casing has its own unique benefits, so it’s important to consider all of your options before making a decision. With the right oil casing, you can be sure that your well will be safe and secure for years to come.
