Basic Parameter

Main Performance Parameter

Working Parameter

OD

(mm)

ID

(mm)

OD of coupling

(mm)

Coupling thread

Apparent coefficient of heat conductivity

(inner thickness at 350°C)

W/m·°C

Tension load at normal temperature

(kN)

Resistance of Internal pressure

(MPa)

Resistance of external pressure

(MPa)

Flatness

(%)

Well depth

(m)

Temperature

°C

Fixed casing

in(mm)

Normal Working Time

Overheat

(3~4h)

Normal temperature

Steam injection

Normal temperature

Steam injection

88.9

50.6

108

3-1/2USS

0.02~0.08

432

32

20

30

28

≤0.2

≤1500

350

380

5

(139.7)

88.9

40.9

108

3-1/2USS

0.02~0.08

402

32

20

30

28

≤0.2

≤1500

350

380

5

(139.7)

127.0

76.0

141.3

5BCSG

0.02~0.08

615

32

20

23

21

≤0.2

≤1500

350

380

9 5/8”

(244.5)

114.3

76.0

127.0

4 1/2 CSG

0~0.08

537

32

20

26

24

≤0.2

≤1500

350

380

7”

(177.8)

114.3

62.0

127.0

4 1/2 CSG

0~0.08

506

32

20

26

24

≤0.2

≤1500

350

380

7”