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Column name | Overview | Code |
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Leak rate (m3/h) | The rate of loss of drilling fluid during drilling | 1 |
Displacement (m3/h) | The rate at which the carrier fluid is pumped during the plugging process | 2 |
Pumping pressure max (MPa) | The carrier fluid is pumped to the leakage layer, the pressure generated by the fluid at this time | 3 |
Concentration (%) | The concentration of plugging particles in the overall plugging slurry | 4 |
Addition of KZ-3 (t) | Plugging materials used in the field, mineral type granular plugging materials | 5 |
Addition of KZ-4 (t) | Plugging materials used in the field, mineral type granular plugging materials | 6 |
Addition of KZ-5 (t) | Plugging materials used in the field, mineral type granular plugging materials | 7 |
Addition of walnut shell (t) | Plugging materials used on-site, plant-type granular plugging materials | 8 |
Amount of vermiculite (t) | Leakage plugging materials used in the field, mineral type flaky leakage plugging materials | 9 |
Amount of comprehensive plugging agent (t) | Composite leakage plugging material mixed with particles, flakes, and fibers | 10 |
Addition amount of LWD agent (t) | Particle plugging material with particle size below 1 mm | 11 |
Total addition (m3) | The overall volume of carrier fluid | 12 |
Density (g▪cm3) | The density of carrier fluid | 13 |
Funnel viscosity (s) | From the marsh funnel, indicating the viscosity of the drilling fluid | 1 4 |
Actual blocking effect (%) | The ratio of the leakage velocity of the lost formation before and after the plugging construction | 1 5 |
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