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Category Archives: Mud mixer

Why drilling mud cleaning system need jet mud mixer

Jet Mud mixer special equipment to prepare and increase the drilling fluids weight by adding and mixing bentonite, change the
fluid density, change the mud density, viscosity, and dehydration.

Jet Mud Mixer consists of one centrifugal pump, one feeding hopper and one jet mixer. Generally, there are still pipes and valves
connecting all these parts, the mud hopper matched on the jet mud mixer always 4″and 6″. And the centrifugal pumps can be matched
different flow and lift according to users need.

jet mud mixer

When the mixing hopper matched with a shear pump, the assembly unit is called jet shearing unit which is used to shear the polymer
drilling mud materials. As per customers’ requirement, the jet mud mixer could be designed as Twin-type of 2 hoppers and 2 pumps.
Jet Mud Mixer is a important equipment in the drilling mud recycling system.

mud hoppers

Combining with venturi tube and original jet nozzle, DC’s new Jet mud mixer specializes in simple structure and easy manipulation
which can satisfy the drilling fluid’s need on weighting and compounding from 1500m to 9000m depth. DC’s jet mud mixer can be
customized to be double jet mud mixer based on customer’s need.

 

Major factors that affect the performance of jet mud mixer

jet mud mixer

Jet Mud mixer is a single jet mud mixing device that typically consist of a sand pump and a jet mixing hopper, they are connected by manifold valve and installed on a base or double jet mud mixing device that composed of two pumps and two mud hoppers.

Major factors that affect the performance of jet mud mixer:

  1. In the mixed funnel water along the loss must be as far as possible to reduce the otherwise processing capacity can be greatly reduced.
  2.  In the nozzle from the Venturi tube’s gap to fit the best efficiency when the distance in the 32 – 90 m m, the general situation is not to be more than 90 m m, or heavy crystal stone feeding speed can significantly reduce. Exergy
  3. In the outlet pipe back pressure to the back pressure will reduce the mixing funnel processing quantity, excessive moderate. For example, when the nozzle outlet diameter is 50 m m in the nozzle to the Venturi tube’s gap is 90 m m, mixing funnel work pressure head of 21 – 23 m in back pressure value is not reached before the inlet pressure of the mixing chamber has 50% a high degree of vacuum in the back pressure values near the inlet pressure of 50% vacuum almost zero drilling fluid began to leak back flow in the bucket.
  4. The larger the inlet pressure, the higher the treating capacity of the jet mud mixer.
  5. Mixing hopper mounted higher back pressure, the higher the mixing capacity will be reduced.

Please contact DACHUAN Solids Control if you are interested in our product.

How to choose and install jet mud mixer correctly

As with all equipments, jet mud mixer and associated equipment must be correctly chosen, calibrated and installed, to obtain the ideal working performance.

Need to satisfy the require of proportioning at scene. 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.

Try to reduce pipeline on-way resistance, thus the pipeline required short and thick, smooth bend. Jet hopper equipped with matching venture tube can improve treating capacity, speed up solid diffusion and avoid caking.

Strengthening the repair and maintenance, in most cases, the back pressure shall not be greater than 20% of the input pressure.

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.

From the preceding discussion show, jet mud mixer can work effectively, but the jet mud mixer unreasonable installation will cause a lot of problems. If we can choose, install and debug charging system correctly, the work load of whole system maintenance will be reduced, the drilling fluid cost will be decreased, the working hours of treating drilling fluid also will be reduced.

Drilling jet mud mixer for solids control system

Jet mud mixer is used to make up drilling fluid or increase total amount of the drilling fluid, change the fluid density, viscosity, and dehydration. When making up again, put the materials of drilling fluid (such as betonies and barite powder) and corresponding chemical additives (such as polymer) into the recycle tank through the jet unit. If put them directly, the materials of drilling fluid and chemical additives will be deposited largely or dump together and we can’t obtain diffused and well-proportioned drilling fluid.

Jet mud mixer device generally consists of a sand pump and a jet flow mixed funnel with manifold valve connection and are installed in a pedestal called the single jet mud mixer device, or by two pumps and two mix slurry funnels called double jet mud mixer device.

Following is the main factors of affect jet mud mixer performance:

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.

Mixed hopper hydraulic linear loss should be tried to reduce, otherwise the treating capacity may be decreased greatly.

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

The higher inlet pressure is, and the larger treating capacity of mixed hopper is.

The taller installation of mixed hopper is, the higher return pressure is, mixed capacity will be reduced. For example, if mounting height from 1.8 m to 3.66 m, treating capacity will fall by 17%.

Drilling mud mixer is a kind of equipment which matching with petroleum drilling solids control system, using it to satisfy drilling fluid of weighting and preparation. So that we must ensure the performance of mud mixer is good.

 

Jet mud mixer for sale

Jet mud mixer is used to make up drilling fluid or increase total amount of the drilling fluid, change the fluid density, viscosity, and dehydration. When making up again, put the materials of drilling fluid (such as betonies and barite powder) and corresponding chemical additives (such as polymer) into the recycle tank through the jet unit. If put them directly, the materials of drilling fluid and chemical additives will be deposited largely or dump together and we can’t obtain diffused and well-proportioned drilling fluid.

Especially when happen to blowout, you need to confect and make up weighting material evenly at short notice, so the equipment must be used. Jet mud mixer is a kind of equipment which matching with petroleum drilling solids control system, using it to satisfy drilling fluid of weighting and preparation.

Jet mud mixer device generally consists of a sand pump and a jet flow mixed funnel with manifold valve connection and are installed in a pedestal called the single jet mud mixer device, or by two pumps and two mix slurry funnels called double jet mud mixer device.

DC Machinery is a professional manufacturer of solids control equipment in china, SLH series jet mud mixers are produced by DC Machinery.

If you are interested  in it, please contact us, we will provide high quality jet mud mixer, and  good after-sale service.

The following is the technical parameters of jet mud mixer.

TYPE SLH150 2SLH150
Centrifuge Pump 11Kw~75Kw 2х11kw~2x75Kw
Thruput 30~240m3/h(132~1056GPM) 60~480m3/h(264~2112GPM)
Pressure/td> 0.25~0.40Mpa
Underflow Hole Drift Diameter 50mm~30mm
Funnel Size 600x600mm或500x500mm
Speed Of Burdening ≤100kg/min ≤200kg/min
Fluid Density ≤2.8g/cm3
Fluid Viscosity ≤120s
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