Tag Archives: Desilter

Desilter is a third separation equipment of solid control system, which also can be used in building construction fields. Recent days, DC Machinery shipped 6 sets desilter to foreign clients used in building construction fields.

Usually the cone diameter is less than 6″is called Desilter. 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.

desilter

DC Mud Desilter Features & Benefits
1. 100% Polyurethane(PU) Material for desilter cones with longer using life
2. Clamp type for easy maintenance
3. Compact design with small footprint.
4. Flexible fast connection are available for user friendly assembly.
5. Shutoff stainless steel ball valves available for option on each cone inlet permit individual cone removal and inspection without interrupting operation of the desilter.

You are welcome to contact with us to get more detailed infos of desilters, we will supply cost-effective desilters and satisfactory pre-sale, sale and after-sale technical services.

DC Solid control is a professional manufacture of drilling mud cleaning equipment for overseas market. DC Solid control equipment have taken lots of drilling site in Middle East, Africa, Russia, America, Brazil, Australia etc.

The main product of DC Solids Control equipment including: shale shaker, shaker screen, mud cleaner, desander, desilter, decanter centrifuge, mud agitator, mud gun, centrifugal pump, screw pump, vertical cuttings dryer, screw conveyor, High G drying shaker etc.

At present, DC solid control has 2 sets mud cleaner and matching hydrocyclone prepared to shiped to overseas market.

The mud cleaner we offer to them, with below technical specifications:

Model: DCQJ250X1/100X8
Treating Capacity: 120m3/h (528GPM).
Hydrocyclone specification: 10″x1/4″x8.
Matching Shaker: DCS630-3 linear motion shale shakers.

SONY DSC

The manufacture progress is as per international Standard. After all assembly finish, test with bentonite fluid. All connections and welding points no leakage, and shale shaker works well.

SONY DSC

Except for mud cleaner, we export large quantity of matching hydrocyclone for the same users. You are welcome to call Dachuan Machinery to get more infos about the mud cleaner and we are appreciated to supply the cost-effective products and service for you.

The development of shale shaker is fast growing in the trenchless drilling fields, and which is different in oil and gas drilling. And many shale shaker composite with hydrocyclone to consitute drilling mud cleaner.

1. Microtunnelling

Microtunnelling project is widely used in Europe. Microtunnelling is a kind of big hole horizontal drilling. which is famous used in city construction and pipe laying or replaced. In preparation for the construction, firstly digging a big diameter and vertical well or well-sinking to convenient to drilling equipment and hydraulic machine. The location of well-sinking is slightly lower than equipment level, so that when drilling fluid return back will forming a settling pond that is good for removing solid phase. The drilling fluid pumped to the ground will pumped to a simple solid phase cleaning system by a submerged pump, this system is mainly consist of a set shale shaker and a mud cleaner.

shale shaker

2. River crossing

In order to lay pipeline in the river bottom, need to drill a small well hole on the riverbed. When laying the big size pipeline, we must use recombination shale shaker, desander, desilter and centrifuge to build a strong solid control system. Drilling mud cleaning equipment reduce the cost of drilling waste.

shale shaker1

3. Road crossing

Laying pipeline and cable required to through the below of the road, when road drilling can’t affect the traffic, nor destroy the road. Usually this drilling size is very small to avoid using solid phase cleaning equipment. If when drilling fluid is accumulation, drilling size is too big or road base is wide must use shale shaker or drilling fluid cleaner.

4. Fibre-optic(al) cable

The laying of fibre-optical cable need no drill bid well hole, but because of often drilling in residential area or commercial district produce the drilling fluid and solid phase must be put into the special device, this solid control system only includes a storage tank , a set of pump box and a minitype shale shaker.

 

As an international leading supplier of oil & gas drilling fluids engineering system, DC Solid control has obtained good experience & technology in solids control system manufacturing.

Mud cleaner is a normal model of our company, we can design customized cost-effective mud Cleaner for customers special needs. Our mud cleaner can meet almost all needs for oil & gas well drilling fluids treatment system and HDD Mud Recycling System.

In drilling site, two stage separation process employed on the mud cleaner with different sizes & material hydrocyclones mounted on top of shale shaker. Normally high efficiency mud cleaner combines of the function of desander and desilter, with two or three pcs desander hydrocyclones, and 8 to 12 pcs desilter hydrocyclones together. While normally the desander clones & desilter units do not work at the same time. though they are drive by two different motors. Normally desander clones are mounted vertically on top of shale shaker, and desilter units are slant mounted.

In oilfield solids control, drilling mud cleaners is very efficient for oil gas well drilling mud purification system .Mud Cleaners are one of the important equipments for solids liquid separation system.

We are an exporter of drilling mud cleaner for Indian, Russian, middle east.etc. Oilfield Company of the United States and Century Int’l Oilfield Equipment LLC of the United Arab Emirates etc. choose us as drilling mud cleaner supplier. Our factoryand company are Quality Management System ISO 9001-2000 certified. DC Solids Control operation waste mud management international sales, service, manufacturing, distribution service. Buy drilling mud cleaners from China manufacturer, good quality, best price. your best choice of drilling mud cleaner 

 

Our country solid control manufactures are mainly produce the hydrocyclone, the desander and desilter. The quality index of hydrocyclone is abrasive resistance, the performance of hydrocyclone is the separation granularity, the D50, the D50 is lower, the separation effect is good. In the desander and desilter device, we must attention the range of separation particles, it must has a certain distance and a certain overlap. According the classification standard and the separation granularity of the hydrocyclone, the inner diameter of column volute is Φ150—300mm, the separation granularity is 74—44μm hydrocyclone is all the drilling fluid desander; The inner diameter of column volute isΦ100—150, the separation granularity is 44—15μm hydrocyclone is all the desilter. But some matching desander and desilter which the separation granularity are very similar, thedrilling fluid is processed by the drilling fluid desander, then it is processed by desilter, leading to the desilter don’t have the function of removing solid phase particles.

The main reason is that the manufacture level of domestic hydrocyclone can’t reach the requirements, the effect also can’t reach the requirements of drilling technology. So many user choose two sets drilling fluid desander instead of a set of drilling fluid desilter, the matching scheme of the desilter. Some users simply install the second desander in the place which installation the desilter, the process flow is can’t be changed. This is wrong.

The performance parameter of the two drilling fluid desander are the same, we should use the parallel process, it can be as the spare and increase the drilling fluid throughput in the high speed rotation. But to the high performance of drilling fluid well, the reasonable scheme is setting a desilter and a desnader, using the tandem technology process. But when we choose the desilter and desander, we should choose the different separation size equipments. Such as the separation size is 40—60μm of the desander, the separation size of desilter is 15-45um, it can achieve a good treatment effect.

Exhibition is the best purchase, sales and propaganda platform of a company, a manufacturer.

On September 17, 2012, Tangshan Dachuan Machinery co.,ltd. Took part in the offshore, oil and gas technology, equipment exhibition of Dong ying. There were a lot of companies in the exhibition, for example, Shengli oil field petroleum equipment co.,ltd. Rong li petro leum machinery and Jin sheng yuan solid control company and so on . The bigger exhibition hall is Jin sheng yuan solid control company. There is a shale shaker, a mud cleaner and several hydrocyclones in the exhibition hall.

   

The salesman of the company and I talked about one hour, I understood the main marketings and the sales model of the company, I studied the sales methods and the keys with the excellent salesman, and exchanged the sales experiences and realized.

Because the time is short, so our company can’t order the exhibition hall, but according our studies and observation, we got a lot of valuable knowledge and experiences, and meet a lot of foreign friends, there are Mark joony, Duanie A. priestley and Allen B.Kilback and so on.

  

DuanieA.Prestley was very interested with our centrifugal, and detailed understand the centrifugal of DC manufacturer with the technical engineer, he hoped establish business relations with us. And we leave the contact information each other.

Form the exhibition, I learned that the main of sales are daring to open, and I hope according about 6 months to exercise, the next time,  Beijing exhibition, my sales model and the spoken language are improve.

Hydrocyclone is a kind of mechanical separation equipment with simple and easy to maintain. Separation is realized by the admission energy change into the interior barrel centrifugal force. The centrifugal force act on drilling fluid, make drilling cuttings and other solid phase separated, this is follow Joe hicks’s law. Because the drilling cutting is too fine in some strata drilling, drilling fluid shale shaker can’t remove the drilling cuttings, so must use hydrocyclone remove the most of particles. Drilling fluid shale shaker avoid the big particles enter into the hydrocyclone and led to blocking, protect the hydrocyclone.

The best separate effect of hydrocyclone is the least liquid loss, obtain the maximum drilling fluid solid phase to discharge. The small and light particles are discharged through the overflow month. The biggest effect to the performance of hydrocyclong is the diameter, cone Angle, the diameter of bottom month, the pressure of admission, the model form viscosity of admission.

Advantages

1 The device is compact, the structure is simple, the price is cheap, have no movement     parts

2 The throughput is big, the range of separation is large.

3 Adjustment and operation is easy, and it is easy to maintain.

4 The ability of separation is great, in some cases, can obtain the overflow of more fine and the higher of separative efficiency.

The shortcomings of hydrocyclone

1 The power consumption is big

2 When the viscosity of the pulp, the density of solid phase and the composition of particles size are changed, the separation particle size and separation effect is changes.

3 The working condition of desander pump is greatly influenced the hydrocyclone.

4 It can’t carry out super fine separation. It can’t disposed flocculating substance

Centrifugal pump

Type; DCSB

Brand; DC

Characteristics; the centrifugal pump is our company is easy to operate and maintain, the quality of leakage rate of shaft seal is little, working is reliable, the using lifetime is long.

The centrifugal pump of Tangshan DC company is a ideal equipment to provide power to Desander, Desilter and jet mud mixer, SB series centrifugal pump also as infusion pump of mud pump and the wellhead supply pump. The product centrifugal pump of our company is fully consider the mating equipment can work under the best condition. The SB series horizontal type centrifugal pump use the two-way grease lubrication bearing, it can guarantee normal running with long time. According the requirements of customers, the pump can also use the machine oil lubrication bearing.

Parameters under 50HZ

Type Flow Lift Power Rotate speed Efficiency NPSH
SB8x6-14 320 m3/h 40 m 75kw 1480 rpm 65% 4
SB8x6-13 290 m3/h 33 m 55kw 1480 rpm 64% 4.5
SB6x5-13 180 m3/h 34 m 45kw 1470 rpm 60% 3
SB6x5-12 160 m3/h 30 m 37kw 1470 rpm 60% 3
SB6x5-11 200 m3/h 21 m 30kw 1470 rpm 62% 2.5
SB5x4-12 90 m3/h 30 m 22kw 1460 rpm 56% 4.5
SB4x3-13 50 m3/h 40 m 15kw 1460 rpm 48% 4.5
SB4x3-12 45 m3/h 30 m 11kw 1460 rpm 47% 4
SB3x2-12 23 m3/h 29 m 7.5kw 1450 rpm 39% 4

Parameters under 60Hz

Type Flow Lift Power Rotate speed Efficiency NPSH
SB8x6-12 335 m3/h 43 m 75kw 1750 rpm 66% 4.8
SB6x5-12 196 m3/h 48 m 55kw 1750 rpm 61% 3
SB5x4-14 149 m3/h 61 m 45kw 1750 rpm 58% 4.6
SB5x4-12 120 m3/h 40 m 37kw 1750 rpm 56% 4.6
SB5x4-11 112 m3/h 45 m 30kw 1750 rpm 58% 4.2
SB5x4-10 105 m3/h 30 m 22kw 1750 rpm 57% 4
SB4x3-11 55 m3/h 45 m 15kw 1750 rpm 37% 4
SB3x2-12 28 m3/h 45 m 11kw 1750 rpm 40% 3.1
SB3x2-11 25 m3/h 35 m 7.5kw 1750 rpm 41% 3.1

Construction:The DCSB centrifugal pump adopts the axial inhaled structure, composed by the motor and pump head, connected by the coupling and belt, with the technical of mechanical seal and combination seal construction, to ensure no leakage for more than 1 year. The bearing is lubricated by lubrication oil and grease, to lengthening the lifetime of the centrifugal Pump. The centrifugal pump has two types, horizontal centrifugal Pump and vertical pump.

Welcome to our company to visit and investigate of at home and abroad

0315-8153977

adela@dcmudcleaningequipment.com

1 Solid phase total

Solid phase refers to the solventless solid in drilling fluid. Usually the solventless solid in drilling fluid use percent by volume to express. The high density drilling fluid solid phase content consist of low density solid phase and high density solid phase, but the common drilling fluid solid phase content is all the low density solid phase.

2 Liquid phase

In drilling fluid, use liquid as dispersion solid phase continuity, it is called liquid phase. Usually, water, oil, soluble salt, thinner and other produce included.

3 Low density solid phase

The low density solid phase is including commercial clay and drilling cuttings. Usually, in the solid control work, assume that the density is 2.6/cm3 or 2.65g/cm3, the actual value in the 2.0-3.0cm3 fluctuation.

4 High density solid phase

The high density solid phase improves the density of the drilling fluid, make the annulus fluid column pressure is greater than the formation pressure. The barites is a kind of high density solid phase, the barites density is recommended by American petroleum institute is bigger than 4.2/cm3.

5 Aggravate drilling fluid

The commonly known as aggravate mud, the common aggravate materials is barites, according to requirements also can use other aggravate materials, in order to keep the minimum density.

6 Drilling cuttings

Drilling cutting belongs to solid phase, it is the main pollution source of drilling fluid. It is greatly affected the performance of drilling fluid, so must make the content is stably, so have the important issues, in the process of drilling should do regular treatment to keep the content is stably of drilling cuttings.

7 The clay

The clay is mainly made of clay minerals, the form is the super fine particles, most diameters is less than 2um, it has dispersibility in water, charged sexual, ion exchange, these performance is important to drilling fluid.

8 Colloid particles

The clay diameter of solid particles is less than 2um is called particles, the material of clay particles have a big surface area. Sodium montmorillonite can shape clay suspension in water, the dispersibility of the sodium montmorillonite is good, it can improve the viscosity of drilling fluid.

9 Oil base and water base drilling fluid

The oil base drilling fluid base on oil as continuous phase, the insoluble solid phase particles is scattered to the continuity liquid phase; Water base drilling fluid base on water as continuous phase.

10 saturated brine

saturated brine is allocated by sodium chloride, the density is 1.20/cm3

 

 

Drilling fluid is classified as water base utilizing water as the liquid phase. The solid phase of any drilling fluid is either commercial solids or drilled solids. Most commercial solids such as bentonite have a relative particle size of less than one micron. The shale shaker, in various forms, has played prominent role in oilfield solids control schemes for several decades. Shakers have evolved from small, relatively simple devices capable of running only the coarsest screens to the models of today. Modern, high-performance shakers of today 。

Shale Shaker Parameters

TYPE DCS585-3/4 DCS630-3 DCS700-3/4 DCS830-2/3
Shake Locus linear type or ellipse type
Motor Power 2×1.5/1.72KW 2×1.5KW 2×1.5/1.72KW 2×1.3/1.72KW
Shake Strength ≤7.0G
Amplitude 5~6mm
Thruput Per Screen 100/130 m3/h 440/572GPM 120 m3/h 528GPM 110/130 m3/h 440/572GPM 80/130 m3/h 352/528GPM
Angle Of Screen -1°~5°
Motor frequency and voltage 380V/50HZ(Foreign custom motor according to customer requirements)
Screen Area 2/2.73 m2 2.36m2 2.2/2.94m2 1.8/2.7m2
Screen Specification 585×1165mm (40~250) 630×1250mm (40~250) 700×1050mm (40~250) 830×1080mm (40~250)
Remarks The proportion of thruput per screen in the total amount is:1.2g/cm3,the viscosity is:45s

DC designs, manufacture and operate a complete line of advanced balanced-elliptical and linear-motion shakers for all onshore and offshore applications.  Whether used as scalping, primary or stand-alone units, our high-capacity shale shakers deliver unmatched solids removal.  All of our shakers are available for sell or rental.

Advantages

1 The motor of the shale shaker use the vibration motor of import in Italy, the excite of vibration motor can adjust.

2 The screening area of the screen is big, the throughput is large, the effect of the treatment is good.

3 the shale shaker designed with the solidwordks ansys, the structure is optimization, the structure of the shale shaker is simple, compact, the performance is excellent and cost-effective

4 the screen of the shale shaker is the agglutinate screen edge rigidity, use the plate type close fixed, is convenient and quick to replace.

5 the design is reasonable, make the mud buffer, average flow, reduce the directly impact, the life of the screen is long.

6 The shale shaker use the ratchet wheel lift, the structure of lift is easy and easy to operate.

Welcome to inquire drilling fluid shale shaker of DC mud cleaning equipment , and welcome to visit and negotiate the business both at home and abroad ; Our company will provide for you the best shale shaker and other equipment related solid control with superior quality and most reasonable Price. And we will sincerely offer our best service to satisfy what you need.