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Clear Brine Fluids

EMEC's range of clear brine fluids for use in completion and work over activities, as well as drilling and drill-in fluids, are designed to cover all reservoir conditions to ensure optimum productivity and operational efficiency, and include the following brines:

Sodium Chloride – Sodium Chloride brine is prepared by mixing crystalline Sodium Chloride powder in water to obtain required brine densities up to 10.0 ppg (1.20 sg). Sodium Chloride brine is also used in drilling fluid systems and especially in salt saturated systems for minimizing wash-outs while drilling salt formations.

Calcium Chloride – Calcium Chloride brine is prepared by mixing crystalline calcium chloride powder or pellets in water to obtain required brine densities up to 11.8 ppg (1.42 sg). Calcium Chloride brine is also used for controlling water activity in the brine phase of oil and synthetic based drilling fluids.

Potassium Chloride – Potassium Chloride brine is prepared by mixing crystalline potassium chloride powder in water to obtain required brine densities up to 9.7 ppg (1.16 sg). Potassium Chloride brine is also used for shale inhibition in drilling fluid systems.

Calcium Bromide – Calcium Bromide brine is prepared by mixing crystalline calcium bromide powder in water to obtain required brine densities up to 14.2 ppg (1.70 sg).

Sodium Formate – Sodium Formate brine is prepared by mixing crystalline sodium formate powder in water to obtain required brine densities up to 10.8 ppg (1.30 sg). Sodium Formate is also used as a non-damaging, low solids reservoir drill-in fluid.

Potassium Formate – Potassium Formate brine is prepared by mixing crystalline Potassium Formate powder in water to obtain required brine densities up to 13.1 ppg (1.57 sg). Potassium Formate brine is often used for reducing Cesium Formate brine densities in order to restrict the amount of free water in the formate system for minimizing shale hydration. Potassium Formate is also used as a non-damaging, low solids reservoir drill-in fluid.

Cesium Formate – Cesium Formate is supplied as a high density brine up to 19.2 ppg (2.3 sg). Cesium Formate is also available as a crystalline powder for increasing brine density. Formate fluids are safe to handle and are not an environmental hazard. They also avoid corrosion issues associated with halide brines in high temperature wells, as well as providing a range of other benefits. Cesium Formate is also used as a non-damaging, low solids reservoir drill-in fluid.

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