Drilling Fluid Systems Criteria
| Drilling Fluid Type | Formation | Pressure | Interval Temperature | Well Inclination | Shale inhibition | Reservoir/Non reservoir |
|---|---|---|---|---|---|---|
| Improved Conventional Mud Systems | ||||||
| SPUD DRILL | Top hole/large hole sizes | ≤200 °F | ≤20° | -- | Non-reservoir | |
| POLY-DRILL | Semi saturated Salt/shale | Up to 1.12 SG | ≤200 °F | ≤20° | Low to Moderate Reactive Shale | Reservoir/Non reservoir |
| K-POLY DRILL | Active Shale | Up to 1.12 SG | ≤200 °F | ≤20° | Moderate to High Reactive Shale | Non-reservoir |
| SS-POLY DRILL | Saturated Salt/Shale | Up to1.21 SG | ≤200 °F | ≤20° | Moderate to reactive Shale | Non-reservoir |
| CARB-DRILL | High pressure Formations | 1.36-1.44 SG | ≤200 °F | ≤20° | Moderate to High Reactive Shale | Reservoir/Non reservoir |
| HMW-DRILL | High pressure formations | 1.6-2.08 SG | ≤200 °F | ≤20° | Moderate to High Reactive Shale | Non-reservoir |
| High Performance Drilling Fluid Systems | ||||||
| CLAY-BOND | Inter-bedded formations containing reactive shales. Highly saline formations |
1.04-1.07 SG | ≤250 °F | ≤30° | Reactive/Sticky Shales | Non-reservoir |
| GLYCO-DRILL | Formations with reactive/brittle shales | 1.06-1.44 SG | 150-250 °F | ≤30° | Reactive/Brittle Shales | Non-reservoir |
| SHALE DRILL | Formations with Swelling and Sloughing Clays | 1.1-1.6 SG | ≤250 °F | ≤30° | Swelling and Sloughing Clays | Non-reservoir |
| HEAVY-DRILL | High pressure formations | 2.16-2.4 SG | 150-250 °F | ≤20° | Moderate to reactive Shale | Non-reservoir |
| ULTRA-WEIGHT | High pressure formations with high calcium/salt water influxes | 2.4-2.64 SG | ≤250 °F | ≤20° | Moderate to reactive Shale | Non-reservoir |
| LUB-DRILL | Highly deviated wells | 1.1-1.36 SG | ≤250 °F | > 30° | Moderate to reactive Shale | Reservoir/Non reservoir |
| Hi-Tech Drilling Fluid Systems | ||||||
| LOW-WEIGHT | Low pressure formation sand depleted zone | 0.75-0.9 SG | < 275 °F | > 30° | Moderate to reactive Shale | Reservoir/Non reservoir |
| MICRO-DRILL | Depleted reservoirs in carbonate and sandstone formation | 0.8-0.9 SG | < 275 °F | > 30° | Moderate to reactive Shale | Reservoir/Non reservoir |
| Drilling Fluid Type | Formation | Pressure | Interval Temperature | Well Inclination | Shale inhibition | Reservoir/Non reservoir |
|---|---|---|---|---|---|---|
| Hi-Tech Drilling Fluid Systems | ||||||
| MICRO-FOAM DRILL | low pressure and fractured reservoirs | 0.6-0.75 SG | ≤250 °F | > 30° | Moderate to reactive Shale | Reservoir/Non reservoir |
| ALL-STAB | Formations sensitive to ECD control | 1.1-2.4 SG | ≤ 300 °F | > 30° | Moderate to reactive Shale | Reservoir/Non reservoir |
| HT/HPHT DRILL | HP/HT formations | 1.1-2.4 SG | 325-350 °F | Moderate to reactive Shale | Reservoir/Non reservoir | |
| N-INHIBIT | High reactive shale formations in areas sensitive to KCl | 1.1-2.08 SG | ≤ 300 °F | > 30° | High reactive shales | Reservoir/Non reservoir |
| ULTRA-INHIBIT | Interbedded Layers ( Shales and Limestone ) Micro Fractured Shales |
1.02-1.6 SG | ≤ 275 °F | ≤ 30° | Reactive Shales | Reservoir/Non reservoir |
| ULTRA-PERFORMANCE | Interbedded Layers ( Shales and Limestone ) Micro Fractured Shales |
1.02-1.6 SG | ≤ 275 °F | > 30° | Reactive Shales | Reservoir/Non reservoir |
| LOW-SALT | High reactive shale/brittles shale formations in areas sensitive to salt | 1.1-2.08 SG | ≤ 300 °F | > 30° | High reactive shales | Reservoir/Non reservoir |
| Reservoir & Drill-in Fluid Systems | ||||||
| CARBO-BRIDGE | Fractured Reservoir Drilling | 1.12-1.44 | ≤ 250 °F | > 30° | Moderate to reactive Shale | Reservoir |
| ULTRA-CARB | High pressure reservoir | 1.56-1.68 SG | ≤ 250 °F | > 30° | Reactive shales | Reservoir/Non reservoir |
| MAX-DRILL | HT/HP reservoir Drilling | 1.6-2.4 SG | ≤ 300 °F | > 30° | Reactive shales | Reservoir/Non reservoir |
| CRYSTAL-SEAL | Sandstone, sands and fractured limestone reservoirs | 1.26-1.68 SG | Resistant up to 280°F in fresh water muds and higher in saline conditions | Vertical, horizontal and slimhole wells | Moderate to reactive Shale | Reservoir |
| FREE/FORMA DRILL | High Temperature Reservoir Drill-in | 1.32-1.57 | ≤ 300 °F | > 30° | High reactive shales | Reservoir |
| CS-FORMA DRILL | High Temperature Reservoir Drill-in | 2.3 SG | ≤ 300 °F | > 30° | High reactive shales | Reservoir |
