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Together with Great Technology Co. Ltd, we has conduct 2 (two) years research to determine the right type of chemical to increase well productivity by taking core samples represents the formation in SES Area.
A. High Water Cut Wells Solution (Completion Fluid)
The addition of these chemicals aims to change the physical properties of the reservoir fluid,which is reducing the interface tension between water and oil. Hence, the reduction ininterface tension yields oil mobility increase in the reservoir so that the rate ofproduction will be increased.
Basic Composition:
Completion fluid used is filtered sea water + KCL + scale inhibitor + clay stabilizer + oxygen scavenger this to avoid formation damage.
B. Low Flow Infill Well Solution (Unplugging Fluid)
This chemicals application is repairing damage wellbore by recovering permeability value of affected formations so that it return to its initial condition, which ultimately results in increased well productivity. This type of chemical does not cause corrosion in production equipment because the average pH in chemical is 4 – 5 (Weak Acid). This chemical type has 3 (three) injection stages:
1. Pre Fluid
Function : Demulsification : dissolve Ca2+?Mg2+ ion solid particle near wellbore, Degradation and dispersion of clay minerals mud cake.
Type: Unplugging agent?Density: 1.03 PH Value 2—3
2. The Main Fluid
Function : Dissolution and chelation of aluminosilicate minerals and form a membrane on clay mineral surface? prevent causing secondary damage.
Type: GTS-F non-acid plug removal?Density: 1.04– 1.07 PH Value 3—4
3. Flush Fluid
Function : Well circulation flushing, carried the solid phase pollutant or non corrosion particles out Type?Low friction active water or work filed liquid : density: 1.03
