|
 |
Features /
1.Used for two-stage casing cementing with well inclination less than 25 degrees.
2.The circulation ports are opened by dropping a free-fall opening plug. 3.After the stage collar is closed, the internal accessories will free fall to bottom, eliminating drill-out. 4.Full ID in the casing string is achieved after the internal accessories of stage collar free fall to bottom. |
|
Size |
Sealing capacity |
Casing weight |
Opening pressure |
Closing pressure |
||
|
in |
mm |
MPa |
lb/ft |
mm |
MPa |
MPa |
|
5 1/2 |
139.7 |
35/50 |
17.00 |
7.72 |
5-7 |
4-6 |
|
20.00 |
9.17 |
|||||
|
7 |
177.8 |
35/50 |
26.00 |
9.19 |
||
|
29.00 |
10.36 |
|||||
|
32.00 |
11.51 |
|||||
|
35.00 |
12.65 |
|||||
Copyright(C) Shelfoil Petroleum Equipment & Services Co., Ltd.
Address: #1286, Changxing Road, Economic Development Zone, Dezhou, Shandong, China
Tel: +86-534-2670699 Fax: +86-534-2566056 E-mail:info.sripe@sinopec.com
