The coupling step of cementing MSC
The clutch is designed for the communication and subsequent hermetic separation of the internal space of the casing in the annular space in the implementation of the second stage of cementing. Coupler equipped with locking plugs (hereinafter – tube locking) intended for closing the circulation holes.
The main parameters of the coupling step of cementing MSC
|
№ |
The main parameters of couplings |
Values |
||
|
Legend equipment |
||||
|
MSC-114 |
MSC-146 |
MSC-168 |
||
|
1 |
Diameter of connecting thread ATM according to GOST 632-80, mm |
114 |
146 |
168 |
|
2 |
Outer diameter no more, mm |
139 |
194 |
203 |
|
3 |
Inner diameter without a drillable seat, not less, mm |
96 |
128 |
148 |
|
4 |
Drillable inner diameter of the saddle, mm |
86 |
114,5 |
134 |
|
5 |
Differential pressure to open the circulation holes, MPa |
from 14 to 20 |
||
| 6 | Step (discrete) of the installation opening pressure, MPa | 1,0 |
1,0 |
1,0 |
|
7 |
The differential pressure for closing the circulation holes, МPa, no more |
15 |
12 |
12 |
|
8 |
Length, no more, mm. |
320 |
410 |
485 |
|
9 |
Weight, no more, kg |
20 |
40 |
45 |
Parameters and dimensions of the locking tube MSC
|
№ |
The main parameters of the tubes |
PSC |
||
|
PSC-114 |
PSC-146 |
PSC-168 |
||
|
1 |
The outer diameter of the rubber parts, not more, mm |
102 |
135 |
155 |
|
2 |
The outer diameter of the metal parts, not more, mm |
92 |
119 |
138 |
|
3 |
Length, mm |
210 |
240 |
250 |
|
4 |
Weight, kg |
3 |
5 |
7 |