Auto-Fill Float Valve: Revolutionary Self-Filling Technology for Safer Tripping Operations
The Manual Filling Challenge in Conventional Operations
Traditional float valves create operational inefficiencies and risks:
-Manual filling required every 800-1000 meters during tripping
-Incomplete filling leads to air columns and well control risks
-Extended tripping time reduces overall drilling efficiency
-Potential for human error in filling operations
Our patented auto-fill float valve (ZL202410917438.X) delivers:
✅ Automatic filling during entire tripping process
✅ One-click switch to kick prevention mode when pumping
✅ Guide pin positioning ensures reliable operation
✅ Eliminates manual intervention completely
Working Principle: Intelligent Dual-Mode Operation
Automatic Filling Mode (Tripping In)
| Component | Function | Innovation |
| Flow Channel | Automatically opens during tripping | Patented pressure differential design |
| Valve Mechanism | Allows mud inflow from annulus | Self-actuating without manual control |
| Filling Control | Maintains continuous filling | Prevents air column formation |
Kick Prevention Mode (Pumping Operations)
| Operation | Activation | Safety Feature |
| Pump Startup | Automatic mode switch | Instant response to pressure |
| Guide Pin Lock | Positive positioning | Prevents accidental opening |
| Full Sealing | Metal-to-metal seal | 10,000psi pressure rating |
Technical Specifications
| Parameter | Specification |
| Patent Number | ZL202410917438.X |
| Pressure Rating | 5,000psi / 10,000psi options |
| Activation Method | Automatic pressure response |
| Fill Rate | Match tripping speed automatically |
| Materials | 4145HM steel, corrosion-resistant alloys |
| Connections | API REG, IF, FH (all standard sizes) |
| Temperature Rating | -20°C to 175°C |
Operational Advantages
-Safety Improvement
Eliminates air columns – maintains continuous hydrostatic pressure
Prevents well control incidents caused by incomplete filling
Reduces human error in filling operations
-Efficiency Gains
Saves 30-45 minutes per 1,000 meters of tripping
Continuous tripping without stopping for manual filling
Simplified operations – no additional equipment required
-Cost Reduction
Reduces tripping time by 15-20%
Minimizes non-productive time associated with manual filling
Decreases labor requirements for filling operations
