适用套管（mm）Applicable casing

Φ139.7（51/2 in.）

Φ177.8（7 in.）

Φ244.5（95/8 in.）

最大外径（mm） 
Max. outside diameter

Φ115

Φ150

Φ215

留井部分最小内径（mm） 
Mini. inside diameter of letting-in section

Φ52

Φ68

Φ120

座封钢球直径（mm） 
Diameter of setting steel ball

Φ35

Φ38

Φ45

座封压差（MPa） 
Setting differential pressure

8-12

8-12

8-14

打开充填通道压差（MPa） 
Open packing channel differential pressure

15-25

15-25

16-23

密封压差（MPa） 
Sealing differential pressure

≤30

≤30

≤30

工作温度（℃） 
Operating temperature

常规型<120,高温型<400（用于热采井） 
Normal <120, high-temperature <400 (for thermal production wells)

上端连接螺纹 
Upper end connection thread

27/8TBG母扣 box

27/8TBG母扣 box

27/8TBG母扣 box

下端连接螺纹 
Lower end connection thread

27/8TBG公扣 pin

31/2TBG公扣pin

51/2套管扣公扣（短丝扣） 
51/2 casing pin (short screw thread)

冲管连接螺纹 
Washing pipe connection thread

1.315TBG公扣 pin

1.900TBG公扣 pin

1.900TBG公扣 pin

解封打捞规范 
Unsetting and fishing specification

27/8TBG母扣 box

31/2TBG母扣 box

51/2套管扣母扣（短丝扣） 
51/2 casing box (short screw thread)