Table 2 Evaluation results of drilling fluid rheological properties
From: Preparation and application of melamine cross-linked poly ammonium as shale inhibitor
T (/°C) | Additives | AV (/mPa s) | PV (/mPa s) | YP (/Pa) | YP/PV (Pa/mPa s) | FL (/mL) | tg |
|---|---|---|---|---|---|---|---|
25 | Blank | 3.2 | 1.9 | 1.2 | 0.6221 | 11.8 | 0.0628 |
0.01% DEM-8 | 2.5 | 1.5 | 0.8 | 0.4892 | 14.9 | 0.0782 | |
2.0% KD-03 | 6.9 | 2.7 | 3.7 | 1.2436 | 6.3 | 0.1056 | |
2.0% modified xanthan gum | 7.4 | 4.4 | 3.0 | 0.6213 | 5.4 | 0.2019 | |
2.0% KD-03 + 0.01% DEM-8 | 4.8 | 3.3 | 1.5 | 0.4126 | 8.0 | 0.0716 | |
2.0% starch + 0.01% DEM-8 | 5.0 | 3.0 | 1.9 | 0.5987 | 5.8 | 0.0473 | |
120 | Blank | 2.4 | 1.7 | 0.6 | 0.3616 | 13.6 | 0.1698 |
0.01% DEM-8 | 1.9 | 1.3 | 0.6 | 0.4659 | 18.5 | 0.1127 | |
2.0% KD-03 | 5.4 | 4.8 | 0.4 | 0.0784 | 10.5 | 0.1314 | |
2.0% modified xanthan gum | 10.1 | 8.7 | 2.0 | 0.2347 | 6.3 | 0.1221 | |
2.0% KD-03 + 0.01% DEM-8 | 4.1 | 2.9 | 1.1 | 0.3521 | 10.1 | 0.0716 | |
2.0% starch + 0.01% DEM-8 | 8.4 | 6.5 | 1.7 | 0.2498 | 5.0 | 0.0472 | |
150 | Blank | 2.8 | 2.6 | 0.1 | 0.0318 | 14.8 | 0.0541 |
0.01% DEM-8 | 2.1 | 1.5 | 0.5 | 0.3011 | 16.3 | 0.0978 | |
2.0% KD-03 | 4.8 | 3.1 | 1.6 | 0.4821 | 15.1 | 0.0391 | |
2.0% modified xanthan gum | 6.2 | 3.7 | 2.5 | 0.5987 | 10.1 | 0.0911 | |
2.0% KD-03 + 0.01% DEM-8 | 3.2 | 2.0 | 1.2 | 0.5418 | 16.1 | 0.0619 | |
2.0% starch + 0.01% DEM-8 | 6.7 | 4.0 | 2.6 | 0.5986 | 10.1 | 0.0554 |