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Release time：2024-07-25 09:47:26 Author：奥泽源
I.Properties and characteristics
FA367 strong amphionic polymer drilling fluid coagulant-inhibitor is made of many anionic, nonionic and organic cationic monomers by polymerisation, it is a water-soluble high molecular weight polymer. As a viscosity increasing agent and drilling fluid inhibitor coagulant, it is characterized by good compatibility, effectively inhibiting hydration and expansion of pelite and shale, controlling formation claying, improving rheological type, and acting in both fresh and saturated salt water.
II. Technical indicators
Table No.1 Physical and chemical properties
| Properties | Indicators |
| Moisture，% | ＜9.0 |
| Fineness（Residue after sieving a 0.90 mm mesh sieve.），% | ＜15.0 |
| External viscosity(1% aqueous solution)，mPa.s | ＞30.0 |
| pH | 7.5~9.0 |
Table No.2 Properties and characteristics of the combined salt solution
| Properties | Indicators | |||
| External viscosity，mPa-s | Plastic viscosity，mPa-s | Water yield，mL | ||
| Fresh water + 4% bentonite | Fresh base solution | 8.0～10.0 | 3.0～5.0 | 22.0～26.0 |
| Baseline solution with a sample of 2.0 g/L. | ≥25.0 | ≥8.0 | ≤15.0 | |
| Complex salt solution + 15% bentonite | Basic solution | 4.0～6.0 | 2.0～4.0 | 52.0～58.0 |
| Baseline solution with a sample of 7.0g/L. | ≥15.0 | ≥10.0 | ≤10.0 | |
Table No.3 Inhibition properties of clay dispersion
| Properties | Degree of external toughness increase after hot rolling at160℃，% |
| Base solution + 20 g of bentonite | 450.0~700.0 |
| Base solution+sample+20g bentonite | ≤250.0 |