Product Introduction
The turning agent used in this acid is a surface active dosage form. During the acid rock reaction process, the surface active agent molecules continuously bind with Ca2+ to form columnar or rod-shaped micelles. The acid system has a stage thickening characteristic and has a temporary blocking and turning function for large pores and high permeability zones. At the same time, it allows the acid to continue to penetrate deeper and turn to other low-permeability layers, thereby increasing the effective working distance of the acid. When residual acid encounters hydrocarbon gases in the formation, it accelerates the breaking of the gel and hydrates more thoroughly.
Technical Indicators
project | Technical Indicators | |
compatibility | 25°C, 48h | The acid solution is uniform, without layering, flocculation, or sedimentation |
Fresh acid surface tension | 25℃, mN/m | ≤32.0 |
Fresh acid viscosity | 25℃, 170s-1, mPa·s | 1.0～5.0 |
Peak apparent viscosity | 90℃, 170s-1, mPa·s | 40.0～80.0 |
Residual acid viscosity | 25°C, 170s-1, mPa·s | ≤5 |
Application
This series of products is mainly used for acidizing operations in oil and gas wells. The clean turning acid developed by our company mainly consists of acid, turning agent for clean turning acid, acidification corrosion inhibitor, iron ion stabilizer, drainage aid, etc. We can match suitable clean self turning acid product systems according to different geological conditions on site.
