特点
1.通过液压打开循环孔,不需投重力塞,不受井斜限制;
2.采用内关闭且设防转机构,钻除附件时不会损伤关闭套;
3.全部附件均由可钻性好的材料制成,容易钻除;
4.可根据用户需求,调整打开压力。
技术参数
|
套管规格
|
套管公称质量
|
最大外径
|
钻后内径
|
总长d
|
|
in.
|
kg/m
|
l b/ft
|
mm
|
in.
|
mm
|
in.
|
mm
|
in.
|
|
5-1/2
|
25,30
|
17.00
|
172
|
6.772
|
124
|
4.882
|
780
|
30.709
|
|
29.76
|
20.00
|
121
|
4.764
|
|
34.23
|
23.00
|
119
|
4.685
|
|
7
|
38 69
|
26.00
|
210
|
8.268
|
159
|
6 260
|
930
|
36.614
|
|
43.16
|
29.00
|
157
|
6.181
|
|
47.62
|
32.00
|
155
|
6.102
|
|
7-5/8
|
44.20
|
29.70
|
230
|
9.055
|
175
|
6.890
|
1120
|
44.094
|
|
50.15
|
33.70
|
172
|
6.772
|
|
58 04
|
39.00
|
168
|
6.614
|
|
9-5/8
|
59.53
|
40.00
|
282.5
|
11.122
|
224
|
8.819
|
1170
|
46 063
|
|
64.74
|
43.50
|
222
|
8.740
|
|
69.94
|
47.00
|
221
|
8 701
|
|
10-3/4
|
75.90
|
51.00
|
302
|
11.890
|
250
|
9.843
|
1210
|
47.992
|
|
82.59
|
55.50
|
248
|
9.764
|
|
90.33
|
60.70
|
245
|
9.646
|
|