FER-OX
Hematite weighting agent
Contributes to higher ROP compared with barite muds.
PIPE-LAX ENV WH fluid is a water-dispersible, low-toxicity spotting fluid designed to free differentially stuck pipe by penetrating between the wall cake and drillstring. It offers strong metal wetting characteristics and will act as a lubricant after it is added into the active system.
Because PIPE-LAX ENV WH additive is a single package, liquid blend made for fast mixing, it is ideal for spotting situations.
If a density greater than 9 ppg [1.08 sg] is required, the PIPE-LAX ENV WH fluid should be weighted with M-I BAR barite, M-I WATE barite, or FER-OX weighting materials. If a density less than 9 ppg [1.08 sg] is required, PIPE-LAX ENV WH fluid should be used without dilution.
After being used as a spotting fluid, up to 3% v/v by volume PIPE-LAX ENV WH additive can be incorporated into the active system to reduce torque and drag and to reduce the possibility of differential sticking.
When using PIPE-LAX ENV WH fluid in deviated wells with angles greater than 35° the spotting fluid should be weighted 0.5 ppg [0.06 sg] heavier than the original fluid in the well to encourage the spotting fluid to migrate to the lower side of the hole.
Density, ppg [sg] | PIPE-LAX ENV WH Fluid, bbl [m3] | M-I BAR Barite, lbm [kg] | PIPE-LAX ENV WH Fluid, bbl [m3] | FER-OX Agent, lbm [kg] | PIPE-LAX ENV WH Fluid, bbl [m3] | M-I WATE Barite, lbm [kg] |
8.5 [1.0] | 1.000 [0.16] | – | 1.000 [0.16] | – | 1.000 [0.16] | – |
9.0 [1.0] | 0.982 [0.155] | 28 [12.7] | 0.985 [0.155] | 26 [11.8] | 0.981 [0.155] | 28 [12.7] |
10.0 [1.2] | 0.943 [0.15] | 83 [37.6] | 0.955 [0.152] | 79 [35.8] | 0.942 [0.15] | 84 [38.1] |
11.0 [1.3] | 0.905 [0.145] | 139 [63] | 0.925 [0.147] | 132 [59.9] | 0.903 [0.145] | 140 [63.5] |
12.0 [1.4] | 0.868 [0.14] | 194 [88] | 0.895 [0.142] | 184 [83.5] | 0.864 [0.14] | 196 [88.9] |
13.0 [1.5] | 0.829 [0.13] | 250 [113.4] | 0.864 [0.137] | 238 [108] | 0.825 [0.13] | 252 [114.3] |
14.0 [1.6] | 0.793 [0.125] | 304 [137.9] | 0.835 [0.133] | 290 [131.5] | 0.786 [0.125] | 308 [139.7] |
15.0 [1.8] | 0.754 [0.12] | 361 [163.7] | 0.804 [0.128] | 343 [155.6] | 0.747 [0.12] | 363 [164.7] |
16.0 [1.9] | 0.717 [0.115] | 415 [188.2] | 0.774 [0.123] | 395 [179.2] | 0.708 [0.112] | 419 [190] |
17.0 [2.0] | 0.680 [0.11] | 471 [213.6] | 0.744 [0.118] | 448 [203.2] | 0.669 [0.106] | 475 [215.5] |
18.0 [2.1] | 0.642 [0.10] | 526 [238.6] | 0.714 [0.114] | 500 [226.8] | 0.630 [0.10] | 531 [240.9] |
Higher-density PIPE-LAX ENV WH fluid formulations can develop high viscosity and become difficult to pump. Even small amounts of water contamination can aggravate this situation. For densities greater than 15.0 ppg [1.80 sg], LUBE 945 lubricant should be added to PIPE-LAX ENV WH fluid formulations to reduce the final viscosity, then weighted to achieve the desired density. Suggested dilution concentrations are as follows:
Density, ppg [sg] |
LUBE 945 Lubricant, % by volume |
15–16 [1.8–1.92] | 5 |
16–17 [1.92–2.04] | 10 |
17–18 [2.04–2.16] | 15 |
>18 | 20 |
Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the safety data sheet.
PIPE-LAX ENV WH fluid is available in bulk or 55-galUS [208-L] drums. Store in a dry, well-ventilated area. Keep container closed. Keep away from heat, sparks and flames. Store away from incompatibles. Follow safe warehousing practices regarding palletizing, banding , shrink-wrapping, and stacking.
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