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Petroleum Enzyme Plugging Removal Technology
Overview

Petroleum enzyme is a kind of bio-based material with catalysis, which can significantly restore the flow capacity of formation crude oil. It is an international leading mature product developed by using modern biological engineering technologies such as genetic engineering, cell engineering, and enzyme engineering to mutate and breed new strains. It has the ability to efficiently release crude oil on the surface of solid particles. It has the characteristics of catalytic oil washing activity, changing rock wettability and reducing interfacial tension.

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Viscosity of underground crude oil is less than10000mPa.s, formation temperature is less than180°C, oil saturation > 10%, reservoir permeability > 0.1mD, lithology is not limited, the salinity of formation water is less than 20×104 mg/L.
1.Temperature resistance: The reservoir below 180 °C is generally applicable;

2.Salt resistance: The stratum below 20 × 104 mg/L is applicable;

3.Environment-friendly: Biological metabolites, safety;

4.High efficiency: Rapid stripping of crude oil on the surface of rock, degradate macromolecule rapidly;

5.Easy to demulsify: The enzyme and crude oil are separated automatically, and the viscosity increasing performance is strong;
1.SQXXXX well:After 463 days, the average liquid production is 12.2 square / day, the average oil production is 6.05 tons / day, and the cumulative oil production is 2200 tons.

2.Feng XX well:As of May 14, 2023, 119 days after the measures were taken, the cumulative oil production was 496.09 t, and the cumulative oil production was 270 t, which is still in normal production. The average daily oil increase after the measures is 2.27 t/d ; the production time was prolonged by 84% after the measures were taken.
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