UC-3型套管卡瓦具有1:4的卡瓦背锥(85/8" 卡瓦除外),是卡持作用相一致的多片式设计。一套卡瓦中每片卡瓦具有相同的作用力,受力均匀,管柱不易变形。卡瓦应与具有1:4锥度的卡盘和内衬配套使用。产品按API Spec 7K规范要求设计、制造。
技术参数 Technical Parameters
通用管径 Casing O.D |
卡瓦体规格 Specification of body |
卡瓦体总页 Total Number of segments |
牙板数 Number of Insert |
锥度 Taper |
额定载荷 Rated Cap(Short Tons) |
|
in |
mm |
|||||
7 |
177.8 |
8 5/8 |
10 |
10 |
1:3 |
250 |
7 5/8 |
193.7 |
|||||
8 5/8 |
219.1 |
|||||
9 |
228.6 |
10 3/4 |
10 |
10 |
1:4 |
|
9 5/8 |
244.5 |
|||||
10 3/4 |
273.1 |
|||||
11 3/4 |
298.5 |
13 3/8 |
10 |
12 |
||
12 3/4 |
323.9 |
|||||
13 3/8 |
339.7 |
|||||
16 |
406.4 |
As same as 13 3/8 |
14 |
14 |
||
18 5/8 |
273.1 |
17 |
17 |
|||
20 |
508 |
17 |
17 |
|||
22 1/2 |
571.5 |
19 |
19 |
|||
24 |
609.6 |
19 |
19 |
|||
26 |
660.4 |
21 |
21 |
|||
30 |
762 |
24 |
24 |
|||
36 |
914.4 |
28 |
28 |
|||
42 |
1066.8 |
32 |
32 |