Convoy peroration gun with 2" CT to target zone and open path for the future plug
pumping down operation.
1.The first cluster perforation from the casing annulus pressure and pressure detonator get perforation;
2.The second cluster perforation pressure from inside coiled tubing and pressure detonator get perforation;
3.Detonation pressure can be adjusted according to the actual situation.
When it detonate, the pressure within the coiled tubing and the wellbore and coiled tubing hanging heavy ground changed significantly, coiled tubing and wellhead shake violently.
Coiled tubing perforating equipment parameters are as follows
Outer diameter: φ89 mm
Phase position: 60 °
Hole density: 20 holes / m
Perforating bullet:Model: DP35RDX29-1A type
Type: Pressure hole detonators (YBK1-3A-SC) + pressure detonating device (YB1-1-SC)
Pressure: 90 MPa
Temperature: 160 ℃ / 48h (HQBQ1-1)
2014, In the Fuling field, coiled tubing conveyed perforating 48 wells, perforation 48 perforating , 96 clusters. perforation success rate of 100% .