Description
https://www.eastnewmaterial.com/PGA-Frac-Ball.html
PGA fully degradable frac ball is a series of frac plug developed based on PGA degradable materials to meet the needs of oil fields under various temperatures and working conditions. It has the following characteristics:
High pressure-bearing strength: the material itself has high strength, ≥50 MPa
Good degradability: completely degraded, no viscosity after degradation;
Time controllable: The blocking time can be adjusted by adjusting the material formula;
Safe and environmentally friendly: After degradation, water and carbon dioxide are eventually generated, which is pollution-free;
Easy to operate: it can be added directly to the sand mixing truck and is easy to use.
PGA frac plug ball indoor test
Experiment name: Temporarily blocking small ball pressure experiment
Experimental equipment: Plastic ball ultra-high pressure test device
| Pressure level | Set pressure(MPa) | Compress time(Min) |
| First level | 10 | 2 |
| Second level | 20 | 2 |
| Third level | 30 | 2 |
| Fourth level | 40 | 2 |
| Fifth level | 70 | 120 |
Experimental conclusion: Under the condition of 90°C, the 19mm frac plug ball in the 15mm ball seat meets the pressure requirement of 70MPa
Technical indicators of PGA frac plug ball
| Project | Indicators | |||||
| Model | 40℃ | 60℃ | 90℃ | 120℃ | 150℃ | 180℃ |
| Exterior | Spherical | Spherical | Spherical | Spherical | Spherical | Spherical |
| Density g/cm3 | 1.1-1.6 | 1.1-1.6 | 1.1-1.6 | 1.1-1.6 | 1.1-1.6 | 1.1-1.6 |
| Particle size, mm | 9-22 | 9-22 | 9-96 | 9-96 | 4-22 | 9-22 |
| Dissolution time, h | 4-72 | 4-12 | 6-72 | 6-72 | 10-48 | 12-72 |
| Dissolution rate, % | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 |
| Compressive strength, MPa | ≥40 | ≥40 | ≥40 | ≥40 | ≥40 | ≥40 |
| Suitable for well liquids | Can be used in acid fluids and conventional fracturing fluids | |||||
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