Oil field
Polyacrylamide is also widely used in profile control, water blocking agent, drilling fluid, fracturing fluid, etc. It plays an important role in reducing fluid loss, flocculation, shale inhibition, dilution, plugging, cooling and lubricating drill bits and drill strings, carrying cuttings, and cementing in drilling.
【Technical index】
| Item | Index | ||
| Non-ionic | Anionic | Cationic | |
| Appearance | White or slightly yellow powder | White or slightly yellow powder | White or slightly yellow powder |
| Solid content≥% | 89 | 89 | 89 |
| Molecular weight (10,000) | 800-1000 | 800-2200 | 800-1200 |
| Free monomer≤% | 0.5 | 0.5 | 0.5 |
| Water solubility (hours) | 1 | 1 | 1 |
| Charge Density% | ≤5 | 10-40 | 10-70 |
【Storage, transportation and precautions】 Polyacrylamide itself is not toxic. Only when the inhaled amount is greater than five thousandths, it is harmful because the absorption of nutrients by the gastrointestinal mucosa is blocked. Residual acrylamide monomers in water purification flocculants are toxic, and food applications should be strictly controlled. Storage and transportation should pay attention to moisture-proof.
【Package specification】Dry powder 25kg/bag, inner bag with PVC film, outer bag with kraft paper bag.
Polymers for profile control and water plugging in
oilfields Oilfield profile control and water plugging polymers generally have high molecular weights. When used together with cross-linking agents, they can increase gel strength and block pores. This product can withstand temperature up to 75 °C and is suitable for mineral processing systems. The degree of chemical can be as high as 20 000ppm. Different product grades can be selected according to different oil layer conditions and gelation requirements.
Polymers
for drilling fluids Polyacrylamide is used as drilling fluids in oil fields to improve the performance of drilling fluids, prevent wellbore collapse, cool and lubricate drill bits, and inhibit wall collapse. Polyacrylamide for drilling fluid can be used in low solid phase non-dispersed polymer drilling fluid system, can be used in combination with various treatment agents, and is suitable for various mud systems.
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