General information
Viscoelastic Surfactant (VES) ZX-DA-03 is a kind of amphoteric surfactant, which is used in oil-gas well acidification. When the Viscosity Diverting Acid system is injected into the formation, the viscosity is very low and close to the water. According to the principle of least resistance, the acid will enter the high permeable layer prior; The PH increases with the consumption of the acid. At the same time, the acid rock reaction results in the formation of free two valence metal cations (Ca2+, Mg2+). Under the combination of PH and metal cation, the structure of Viscoelastic Surfactant (VES) changes from spherical micelles to wormlike structure, entangled wormlike structure form a mesh structure of high viscosity result in the system viscosity increased, acid in high permeable zone of resistance increase, forcing subsequent acid into the low permeable formation, so as to realize the shunt of the acid to make uniform formation processing.
Composition
Erucamide propyl betaine
Product properties
|
Appearance |
Light yellow to brownish yellow liquid |
|
pH |
Approx. 4-8 |
|
Solid content % |
40±1 |
|
Density |
Approx. 0.9-1.0 (water = 1) |
|
Flash point |
≥ 30℃ |
|
Viscoelasticity (20%HCl +8% VES) 170s 90℃ |
≥200mPa.s |
Application
The whole system is simple and time-saving, add Corrosion Inhibitor, Iron Control Agent and other acid additives to the acid solution with a certain proportion, and then add 3%-5% of Viscoelastic Surfactant (VES) into the acid solution and mix evenly.
Packing
200L steel drum or 1000L IBC or per clients' request.
Storage
Viscoelastic Surfactant (VES) ZX-DA-03 can be stored in the warehouse, avoid sunshine directly.
Viscoelastic Surfactant (VES) ZX-DA-03 is non-toxic and compliant standard industrial protective measures.
The leakage of Viscoelastic Surfactant (VES) ZX-DA-03 can be covered with fire sand for removal, or simply washed away with water.
Safety and handling
Viscoelastic Surfactant (VES) ZX-DA-03 is intended for technical use only. Avoid physical contact. Use gloves and goggles for protection. Material spilled on the skin should be washed off with soap and plenty of water. If splashed in the eye rinse with copious quantities of Water.
Keep containers closed when not in use. Avoid contact with water. Keep away from sparks and open flame. Do not smoke. Empty containers may hold gases that form explosive mixtures with air.
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