Table 1 The preparation of fluids with different densities.
From: A novel formulation of an eco-friendly calcium nitrate-based heavy completion fluid
Brines | Formulation | Density (pcf) | Turbidity (NTU) | pH | |
|---|---|---|---|---|---|
CN | CN1 | 105 g Ca(NO3)2 + 100 cc H2O | 86 | 9 | 8–9 |
CN2 | 140 g Ca(NO3)2 + 100 cc H2O | 89 | 7 | 8–9 | |
CN3 | 230 g Ca(NO3)2 + 100 cc H2O | 94 | 7 | 8–9 | |
CN4 | 273 g Ca(NO3)2 + 100 cc H2O | 96 | 5 | 8–9 | |
CNG1 | CNG11 | 100 cc H2O + 1520 g Ca(NO3)2 + 20% vol G1 | 102.8 | 11 | 8–9 |
CNG12 | 100 cc H2O + 1280 g Ca(NO3)2 + 25% vol G1 | 98 | 7 | 8–9 | |
CNG13 | 100 cc H2O + 1480 g Ca(NO3)2 + 15% vol G1 | 104.2 | 11 | 8–9 | |
CNG14 | 100 cc H2O + 1280 g Ca(NO3)2 + 15% vol G1 | 101 | 8 | 8–9 | |
CNG2 | CNG21 | 100 cc H2O + 900 g Ca(NO3)2 + 13% vol G2 | 102.5 | 10 | 8–9 |
CNG22 | 100 cc H2O + 734 g Ca(NO3)2 + 17% vol G2 | 98.3 | 7 | 8–9 | |
CNG23 | 100 cc H2O + 900 g Ca(NO3)2 + 19% vol G2 | 99.85 | 6 | 8–9 | |
CNG24 | 100 cc H2O + 735 g Ca(NO3)2 + 13% vol G2 | 101.5 | 6 | 8–9 | |
CNG3 | CNG31 | 100 cc H2O + 467 g Ca(NO3)2 + 13% vol G3 | 101.15 | 9 | 8–9 |
CNG32 | 100 cc H2O + 700 g Ca(NO3)2 + 15% vol G3 | 100 | 7 | 8–9 | |
CNG33 | 100 cc H2O + 441 g Ca(NO3)2 + 10% vol G3 | 99.85 | 7 | 8–9 | |
CNG34 | 100 cc H2O + 480 g Ca(NO3)2 + 13% vol G3 | 100 | 8 | 8–9 | |
