2015年1月15日星期四

How should you install jet mud mixer for drilling fluids preparation?

In drilling mud system, the drilling mud flow into the jet mud mixer with certain pressure, in the jet pump fluid spouts out from jet nozzle first, then flows into shear pipe through mixing chamber, Material will be added from hopper to mixing hopper, and move into shear pipe with the flow. During this process, they are dispersed and mixed. The mixture will enter into drilling fluid tank when flows out of the shear pipe.

How should you install jet mud mixer for drilling fluids preparation?

1. General requirements mixing hopper capacity shall not be less than 150m3/h. For the larger tank and great pump motor power, we can also use the mixing hopper with 300m3/h capacity.

In order to ensure the required well pressure, suggest that each drilling crew should equipped with a spare set of mixing hoppers, in most cases spare hoppers used overlap mode.

2. The return pressure of outlet pipe needed moderate, overlarge return pressure will reduce the treating capacity of mixed hopper.

3. The gap between nozzle and venturi tube must be suitable, when reach optimum efficiency, the gap is 32~90mm, usually don’t more than 90 mm, otherwise the feed speed of barite will be significantly reduced.

4. Another important consideration of install equipment is the drilling fluid required lifted height. If discharge needed to enter into different deck tank or a taunt tank and hopper, mix rate will be decreased. When the height from 1.83m to 3.66m, barite adding rate will be reduced to 17%. If the increased demand is very high, the pump capacity is insufficient, mixed ability will be greatly reduced.


As the China solids control leader and drilling waste management expert, KOSUN provides all the drilling solids control equipment for the drilling fluid circulation system, all the products can be manufactured on the requirements of the customers. KOSUN Drilling Shale Shaker and Decanter Centrifuge are  the hot products, they are applied to the oilfield in many countries and also win much praise from the customers all over the world.

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