Perforating purpose
Convoy peroration gun with 2" CT to target zone and open path for the future plug
pumping down operation.
Perforation toolstring
Perforating detonation
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.
Perforating effect
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.
Perforation equipment
Coiled tubing perforating equipment parameters are as follows
Perforating gun
Outer diameter: φ89 mm
Phase position: 60 °
Hole density: 20 holes / m
Perforating bullet:Model: DP35RDX29-1A type
Aperture: 9.5mm
Blaster
Type: Pressure hole detonators (YBK1-3A-SC) + pressure detonating device (YB1-1-SC)
Pressure: 90 MPa
Temperature: 160 ℃ / 48h (HQBQ1-1)
Application
2014, In the Fuling field, coiled tubing conveyed perforating 48 wells, perforation 48 perforating , 96 clusters. perforation success rate of 100% .
中文