Acid fracturing is an effective stimulation technique in carbonate reservoirs that uses acid etching in place of proppant to form channels within the rock and improve production flow.
Our acid gelling agent is a kind of homopolymer used in the oil and gas well acidizing operation in delaying the reaction speed between acid solution and carbonate rock, with powder and emulsion type available. When contacting with HCl, it can increase the viscosity of hydrochloric acid, reduce filtration loss, slow down the activity of hydrogen ions, effectively reduce the reaction speed between acid and carbonate formation, increase the acid treatment radius, improve the acidizing and the crude oil recovery. It has the characteristics of temperature-resistance and salt-resistance,has good solubility in acid and water, with good compatibility .
The indicators are as follows
performance | Dry powder index | Emulsion index |
| appearance | White or off white granular powder | White emulsion |
| Solid content, % | 90min. | 30min. |
| Dissolving time, minutes | 30-60 | 3-10 |
Viscosity in 20%HCl, room temperatue | 0.8%concentration, 27 CPS min. | 2%concentration, 30 CPS min. |
Viscosity in 20%HCl, 90℃ | 0.8%concentration, 20 CPS min. | 2%concentration, 40 CPS min. |
Product advantages:
-Cationic type, which has good temperature-resistance, suitable for 180 ℃ reservior.
-No need to use crosslinker and gel breaker, viscosity can be adjusted with dosage.
