Category Archives: Hydrocyclone Desander/desilter

DC Desilter is the third class solids control equipment to treat the drilling fluids. According to the size of the cone diameter, they are divided into Desander and Desilter. Usually the cone diameter is less than 6″is called Desilter, and used as the third-control equipment in drilling operation.

spare parts

We commonly used 5 “and 4″ cone to separate solid-phase particle size 15-47μm in the drilling fluid. Based on customer requirements and capacity, we can select groups of cone into Desilter. DC Desilter works very well with Solids control system other equipment.

Until now we have 12 sets mud desilters used in Singapore building construction fields. Last week we delivery a batch of spare parts to them, include 4″ desilter cones, different size of nozzle, screens and ect.

Desilter

Both Desilters and Desanders are available in a large range of configurations including stand alone, over a shaker as a mud cleaner or packaged with a supply pump as a mobile desilting unit. Please contact our office to discuss applications and appropriate technical specifications.

Desanders and desilters are solids control equipment that is installed on top of a mud tank. Each piece of equipment consists of a set of hydrocyclones that separate sand and silt from drilling fluid while they differ by the size of the hydrocyclones used.

Desanders utilize several 8″, 10″, or 12″ hydrocyclones. Utilizing hydrocyclones with larger internal diameters increases the flow rate as well as the size of the solids removed. Increasing the number of hydrocyclones in the package also increases the flow rate of drilling mud through the desander. Typically a 10 inch cone (hydrocyclone) is capable of removing 50% of solids with in the 40 to 50 micrometer range at a flow rate of 500 gallons per minute.

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Desilters utilize smaller hydrocyclones and are used to process mud that has already been cycled through the desander. The number of cones in a desilter is greater than the corresponding desander as the smaller cones accommodate lower flow rates. Desilters are comprised of either 4″ or 5″ cones whereas each 4″ cone is capable of removing 50% of solids 15 to 20 micrometers in range at a flow rate of 60 gallons per minute.

Desanders and desilters are used to remove solids from drilling fluid that a shale shaker is incapable of removing. Other solids control equipment that may be used upstream from desanders and desilters includes degassers, mud cleaners, and gumbo removal equipment. Typically a decanting centrifuge follows the desilter before the drilling fluid is pumped back down into the well.

 

Bored piles are cast in place cylindrical piles excavated either by use of rotary equipment operated augers , buckets, under static drilling fluid or large drill bit (for hard rock) with reverse circulation.

The reason to use desander unit is that Bored piles installed in common soil with the presence of water table, generally require the use of a short temporary steel casing and a drilling fluid as static suspension to provide support to the surrounding soil while excavating the pile and until complete back fill of the pile excavation with concrete, in order to prevent cave-in of the excavation and destabilizing the surrounding soil formation.

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Hydrocyclones is also called cyclone separator. Hydrocyclones consist of desander(10 in. cone) and desilter(4 in. cone)are drilling rig equipments with a set of hydrocyclones that separates sand and silt from the drilling fluid. Desander is installed after shakers and degasser but before desilter. Desander removes those abrassive solids from the drilling mud which cannot be removed by shakers.

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DC Bored Pile desander is to separate the sands from the drilling fluids and recycling the drilling fluids for use. If you have request of it please feel free to contact me.

Desanders and desilters are solids control equipment that is installed on top of a mud tank. Each piece of equipment consists of a set of hydrocyclones that separate sand and silt from drilling fluid while they differ by the size of the hydrocyclones used.

Desanders utilize several 8″, 10″, or 12″ hydrocyclones. Utilizing hydrocyclones with larger internal diameters increases the flow rate as well as the size of the solids removed. Increasing the number of hydrocyclones in the package also increases the flow rate of drilling mud through the desander. Typically a 10 inch cone (hydrocyclone) is capable of removing 50% of solids with in the 40 to 50 micrometer range at a flow rate of 500 gallons per minute.

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Desilters utilize smaller hydrocyclones and are used to process mud that has already been cycled through the desander. The number of cones in a desilter is greater than the corresponding desander as the smaller cones accommodate lower flow rates. Desilters are comprised of either 4″ or 5″ cones whereas each 4″ cone is capable of removing 50% of solids 15 to 20 micrometers in range at a flow rate of 60 gallons per minute.

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DC is a professional solids control equipment  manufacturer in China, which establishment in 2012. DC Solid control can supply linear motion shale shaker,vacuum degasser, desilter, desander,mud cleaner,decanter centrifuge,centrifugal pump, screw pump,mud tank, jet mud mixer,diesel tank, shear pump,mud agitators,mud gun,water tank,etc. DC Machinery can directly exported its products to all foreign countries, so if you have requirements please feel free to contact us.

Desanders and desilters are solids control equipment that is installed on top of a mud tank. Each piece of equipment consists of a set of hydrocyclones that separate sand and silt from drilling fluid while they differ by the size of the hydrocyclones used.

Desanders utilize several 8″, 10″, or 12″ hydrocyclones. Utilizing hydrocyclones with larger internal diameters increases the flow rate as well as the size of the solids removed. Increasing the number of hydrocyclones in the package also increases the flow rate of drilling mud through the desander. Typically a 10 inch cone (hydrocyclone) is capable of removing 50% of solids with in the 40 to 50 micrometer range at a flow rate of 500 gallons per minute.

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Desilters utilize smaller hydrocyclones and are used to process mud that has already been cycled through the desander. The number of cones in a desilter is greater than the corresponding desander as the smaller cones accommodate lower flow rates. Desilters are comprised of either 4″ or 5″ cones whereas each 4″ cone is capable of removing 50% of solids 15 to 20 micrometers in range at a flow rate of 60 gallons per minute.

If you have request of different flow rates of desander and desilter, please contact DC Solid control, we can offer and design it according to your request. Besides you will enjoy a big discount during May. So please contact DC Solid control office.

The desilter can be widely applied in the triple-process of the drilling fluid and when it is used efficiently, the desilters can effectively clear the solid-phase granules with diameter of more than 30 microns in the drilling fluid.

DC Solid control high volume 4” involute feed desilter cones, made from high wear resistant polyurethane, are designed to minimize turbulence and maximize tangential velocity. DC cones focuses on these two important factors significantly advancing cyclone performance.

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Features of DC desilter:
Fewer cones needed for optimum performance
Versatile feed and discharge connections
High volume cone engineered to minimize plugging
Reduce mud loss with interchangeable apex size
High performance
Low maintenance
Simple design

We are a China exporter of desilter and desander equipments for Indian, Russian,middle east.etc.Oilfield Company of the United States and Century Int’l Oilfield Equipments LLC of the United Arab Emirates etc. choose us as desilter supplier.

 

Desanders are used to remove suspended solids from liquid process streams. One of the primary applications is to improve the quality of waste water. Treatment of waste water normally involves multiple process steps to remove the impurities and ensure that the final effluent discharge is compliant to regulatory specifications.

Desander cones

A desander has an entry port near the top on the side of the vessel, a hydrocyclone central component, and two discharge points (one on the top of the vessel and one on the bottom). The hydrocyclone is oriented so that the wide opening is at the top and the narrow opening at the bottom.

desander

Hydrocyclones are designed according to the efficiency of solids removal required and the flow rate of the product stream. A typical waste water desander will remove particles with a mean of up to 10 microns. Any flow rate can be accommodated by appropriate sizing of the hydrocyclone design.

Waste water screens are sometimes used upstream of desanders to remove large items such as rags and bolts, and protect the cyclones from damage. A desander can operate for up to 10 years if properly protected and maintained.

The specially designed drilling mud hydrocyclone units are primarily used for removal of sand-size and silt-size particles from returned drilling fluids. Abrasion resistance polyurethane hydrocyclones are applied to the unit.

The unit can be stonealone for use or assembled above our shale shaker through pre-designed connectors. The number of desander and desilter cones is customizable according to the real conditions.

desander cones

Usually the desander cones have 8″, 10″ and 12″. Sand size solids removal (40 ~ 100 microns), 100% polyurethane hydrocyclone 500 gpm per cone at 75 feet of headFlexible fast connection is available for user to assemble, Compact design and small footprint.

DC desanders are also available in vertical or inclined manifold stand-alone models, or for inclined mounting on DC shakers.

Desanding plants are employed to remove soil particle in drilling mud and support slurry used in foundation engineering. They can be either water-bentonite, water-polymere, or water-cement and bentonite suspensions.

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Desan-ding plants have further applications in gravel pits, in the mining industry and in microtunneling projects. The regeneration or cleaning capacity of a desanding plant is determined by the plant′s intake capacity of contaminated suspension.

It is defined in m3/h. The regeneration efficiency or the “significant cut-off point” d50 indicates the smallest particle size of which at least 50% can be removed from a suspension. It is expressed in 1/1000 mm or micron.

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The main components of all desanding plants are:
Coarse screen for intercepting stones larger than 5 mm
Storage tank of the coarse screencyclone with cyclone feeder pump for removing fine particles from the suspension
Dewatering screens for abstracting further water from the solids dis-charged by the cyclone.

Desanders are used to remove suspended solids from liquid process streams. One of the primary applications is to improve the quality of waste water. To retrieve the bentonite used in construction for engineering foundations (like diaphragm wall, piles, etc..) and some underground works.

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Desanders provide with a reliable and compact design which allow reuse bentonite mud after use and contaminated with sand and silt. The laws of each country requires a maximum percentage of sand in the sludge before starting concreting.

Desander of simple cycloning: land recommended for sandy or sandy little bit thin. Sludge only happen once the cyclone after passing through a phase of screening in order to remove larger material.

Desander of double cycloning: need for sand or fine sand with many. Similar to single cycloning, with the difference that the sludge pass twice through the cyclone so as to separate the finest sand and silt even.