TCP or wireline expendable hollow-carrier perforating gun.
Alligator 127 Perforating Gun Characteristics
| Parameter | Value | |
|---|---|---|
| Outside diameter, mm |
127 |
|
| Min casing diameter, mm |
143 |
|
| Max allowable operating temperature with 1 hour hold time, °С | 170-2001) | |
| Max allowable hydrostatic pressure, MPa | 80-1002) | |
| Max carrier diameter after shooting, mm: | ||
| In liquid medium | 133 | |
| In gaseous medium | 137 | |
| Carrier length, m | 1/2/3/4/ | |
| Max borehole dogleg severity, degree/10 m: | 5,0 | |
| Charge phasing for standard gun option, degree.3) | 60 | |
|
1) Max allowable operating temperature and hold time for a charged gun to be specified by the operating manual for explosives having min allowable application temperature compared with the other explosives contained in gun explosive chain as well as according to the rubber products used. 2) Max allowable pressure can change depending on mechanical properties of carrier tubes. 3) Phasing can be changed upon a special order. |
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Charge Characteristics
| Shaped charge name | Charge type | Total weight of explosives per charge, g1) | Perforation density, shot/m/phasing, degree. | Average parameters of charge penetrating force, mm | |||
|---|---|---|---|---|---|---|---|
| QC-type combined target | API19B | ||||||
| Perforation depth | Casing hole diameter | Perforation depth | Casing hole diameter | ||||
| Alligator 39МАХ |
SDP |
37,3-39,8 |
20, 18, 16, 13, 10/ 60 |
2000 | 13,5 | - | - |
| Alligator 39МАХ (200°С) | 38,8-41,3 | - | - | ||||
| Scorpion PP-32SGP | 25,3-31,8 | 1300 | 10 | - | - | ||
|
1) Depends on explosives used in charges.
|
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Phasing Options and Flat Patterns
