Drilling fluid system name

Bromine salt completion fluid system

Matching core finishing agent

Corrosion inhibitor CA101-3/CA101-2    Scale inhibitor HS-3

System characteristics

1、No solid phase: Bromine salt completion fluid does not contain any solid phase, which has little damage to the reservoir and eliminates the problem of solid phase precipitation card packer;

2、The density can be adjusted in a wide range: Different kinds of inorganic salts, different concentrations and ratios can be used to adjust the density of completion fluid so that it can meet the down hole needs, the density can be adjusted in the range of 1.01-2.30 g/cm 3, which generally do not need to add solid weighting agent;

3、It has strong inhibition: Bromide salt completion fluid is a high salinity system, which has strong inhibition on water-sensitive minerals to control water sensitivity damage of oil layers;

4、Protection of oil and gas layers: For the bromine salt completion fluid has no solid phase intrusion into the oil layer, which can reduce the damage to the oil layer;

5、It has good stability: The main components of bromine salt completion fluid are water and inorganic salts, which has stable performance at high temperature and it will not decompose, also it can be suitable for high temperature wells at 200 °C.

Application situation

The HBM bromine salt completion fluid has been applied in the Jinzhou 20-2 high temperature and high pressure gas field of CNOOC Tianjin Branch, while it has achieved good application results.

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