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Monthly Archives: November 2014

DCS Series Linear motion shale shaker

Shale shaker is first phase solids control equipment in drilling fluids processing system, also known as key solids control equipment in drilling mud system. Shale shakers are divided in to linear motion shale shaker, elliptical motion and circular shale shaker according to its vibration locus.

DCS Series linear motion shale shaker absorbed advanced tech at home and abroad ,and integrated DC own design. DC Solid control all kinds of shale shaker can meet customers’ different requirements. Clients feedback proved the advantages of linear motion shale shaker: high G-force, wide screen area, compressed structure, cost-effective, etc.

shakers

Structure of shale shakers

Hopper – The Hopper, commonly called the “base” serves as both a platform for the shaker and collection pan for the fluid processed by the shaker screens, also known as “underflow”.

Feeder- The Feeder is essentially a collection pan for the drilling fluid before it is processed by the shaker, it can come in many different shapes and sizes to accommodate the needs of the mud system.

shale shakers

Screen Basket- Also known as the screen “bed” it is the most important part of the machine, it is responsible for transferring the shaking intensity of the machine, measured in “G’s”, while keeping the “shaking” motion even throughout the entire basket.

Vibrator- This is the device which applies the vibratory force and motion type to the shaker bed. A vibrator is a specialized motor built for the purpose of vibrating, While containing an electric motor to provide the rotary motion it uses a set of eccentric weights to provide an omnidirectional force.

 

4 inch desilter unit from DC Solid control

The desilting hydrocyclone removes fine sand and silts to 20 microns. The cones are made of polyurethane with optional ceramic inserts. DC Solid control also sells cone parts for replacement needs.

desilter

DC Desilting 4″hydrocyclones are made from high density abrasion resistant polyurethane. The unique internal manifold design minimises the back pressure on the hydrocyclones maximising the solids removal. Fine tuning is achieved through adjustable orifice openings at the discharge point on the cone.

desilter s

DC Solid control manufactures two 4” cones with different internal geometries – with and without a ramp in the feed inlet. The circular pipe feed is smoothly reformed into a rectangular feed. This rectangular ramp feed enters the cone tangentially minimizing turbulence in the upper portion of the cone allowing the solids to quickly move to the wall of the hydrocyclone.

Desilters 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  ouroffice to discuss applications and appropriate technical specifications.

 

DCS700-3 Shale shaker widely sold

DCS700-3 Shale shaker were vital during the boom in the oil and gas industry . Integrating the industry’s latest advancements in shaker design, high capacity, fine screening, and drier cuttings discharge, this machine can dramatically reduce operating costs.

So in order to meets all kinds of different industries clients requirements, our senior engineer design a new type shaker. We call is DCS700-3 shale shaker.

shale-shaker-3

The reason why we call it DCS700-3 shaker, because the shaker screen size is 700x1050mm and with 3 screen panels. DCS700-3 shale shakers lifting device is AWD and designed for quick, easy deck adjustment and operates from -1° to +5° on the 3-panel shaker and -1° to +8°and weir bypass feeders are available for both machines.

DCS700-3 shaker is the flagship product at present, which is popular in many countries, ( Such as Russia, Kazakstan, Dubai, Australia,and ect.). So learn more please contact me soon.

Why choose DCLW Series decanter centrifuge

Decanter centrifuges are normally based on horizontal separation technology and work at slower speeds. DCLW series decanter centrifuges are specially designed for the drilling mud solids control. The effective centrifuging and fine drilled solids separation can remove significant quantities of inseparatable solids. This significantly reduces the traditional dilution requirements and drilling waste volume for disposal.

centrifuges

DCLW Series centrifuges have the flexibility to adapt to almost any solids separation application and are ideal for environmentally sensitive areas and have the flexibility to adapt to almost any solids separation application and are ideal for high volume dewatering applications.

decanter centrifuge

Design features of DCLW Decanter centrifuge
1. Two- three-phase design
2. Conveyor and bowl in various stainless steels: AISI 414, AISI 304
3. Wear protection (interchangeable) of conveyor diffuser
4. Wear protection of conveyor flights in tungsten carbide
5. Automatic differential speed variation:- via Roto variator system

DCLW decanter centrifuge employs the same principles of gravitational force. However, unlike the glass mixture, the process is expedited through the use of continuous rotation. In fact, rotation provides anywhere from 1000 to 4000 times the normal gravitational force, reducing the time required for separation from hours to seconds.

DC Solid control offers horizontal continuous cleaning model decanter centrifuges available in a range of capacity sizes in addition to specialized decanter centrifuges.

DC Advanced drilling mud agitator

Agitators serve an important role in the surface treatment of drilling fluids. Using an impeller mixer that promotes both axial and radial flow will lower mud costs and improve mud properties. Unlike centrifugal pumps or sub-guns, impeller mixers are relatively low shear and low energy devices making them easy to maintain and inexpensive to operate. Using low shear mixers to suspend and mix mud additives minimizes particle size degradation and polymer shear.

agitators

It is essential that the agitator mounting be sufficient to support the weight and torque of the complete unit. The gearbox itself must be securely bolted in position with four bolts secured with locknuts.

mud agitator

Properly sized agitators serve three purposes:

1. Impeller mixers ensure that mud additives are homogeneously mixed. This prevents spot over treatment of chemicals, dilution water or weighting agents.
2. Agitators keep the active mud system moving when the mud pumps are disengaged and will prevent the pits from “gelling”.
3. When drilling with weighted mud, properly selected agitators will keep the weighting agents in suspension and minimize any tendencies for solids to settle in corners or dead spots.

Design features of mud agitator:

1. Lower seal-drop bearing
2. Grease pocket
3. Upper seal-drop bearing
4. Lower seal in gearbox

DC mud agitator has high efficiency and wide usage, compact structure, big intensity stirring, easy maintenance and other significant advantages.

DCLW Decanter centrifuge for sell

DCLW Decanter Centrifuge range provides an effective, low-maintenance solution to continuous liquid clarifying and / or solids dewatering with advanced process and mechanical performance features.

DCGLW250-980N Decanter Centrifuge 02

Decanter centrifuge designs:

Decanter centrifuge for clarifying liquids.
Dewatering decanter for maximum concentration of solids.
Concentrating decanter for the concentration of solids.
Separating decanter for the separation of liquid mixtures and the simultaneous separation of solids.
Classifying decanters for the extraction of different solid fractions.
Extraction decanters for the extraction of reusable materials.

centrifuge

The main features of the decanter centrifuge are:

User friendly advanced control technology.
Screen and Solid bowl configurations.
Bowls range from 150mm – 1400mm Diameter.
Sealed and pressure-tight construction.
Two and three phase versions.
Compliant with environmental noise regulations.
Low operating costs, low maintenance costs.
Low cake moisture – high solids removal – high centrate clarity.
For slurries 1-70% solids: particles 1 micron to > 1cm
Solids output from 0.1 – 100T/hr dry solids.
Centrate output from 40 litres per minute to 5,000 litres per minute.
Compact – small “footprint”.
Materials of construction to suit the rigours of the application.
State of the art abrasion resistant materials.

You are welcome to contact Tangshan Dachuan Machinery to get more detailed infos, we will supply our best service for you.
Note:DCGLW centrifuge can be made with power frequency or frequency conversion according to the requirement of the customers.

VSM300 Shale shaker design features

VSM300 Shale Shaker is designed to meet the demands of the oilfield drilling industry and is purpose built to provide a more efficient primary solids removal system.

Shale Shaker is designed on a modular basis thus enabling multi unit installations and flexible configurations to be achieved using standard equipment. The modular design construction is also advantageous on existing rig locations where the equipment can be easily installed into the shaker room through a standard shaker house door.

shale shaker

The configuration on each installation will vary depending on final equipment layout but the basic principle of operation is simple.

The mud return flowline is diverted into the splitter box on the header tank and the mud is evenly distributed into the main header box section by manually operating the sliding gate valves located between the splitter box and the header tank.

The flow over each shaker is regulated by operating the three (3) sliding gate valves which are located at the feed chute/header tank interface. The processed mud flows through the shale shaker and is discharged back to the mud distribution gutter via the skid base outlet gates.

shale shaker

The cuttings from the shale shaker are transported over the screens to the front of the unit and discharged into the cuttings ditch. The shale shaker package has the facility to divert mud returning through the flowline directly into the cuttings ditch by closing the isolation gate valves within the main header tank and opening the dump valve in the bypass link section.

The VSM 300 has the optional facility of being fitted with a specifically designed HVAC enclosure should this be required. The design of the enclosure is such that any fumes are contained within the enclosure whilst still allowing adequate access to the equipment for operational and maintenance activities.

Jet Mud Mixer China supplier

Jet mud mixer is always installed at the end of the complete solids control system, or we could say that it is a unit placed besides the mud tank and used together with the solid control system. It is also can be used with shearing pump, the effect will be more excellent , it can be designed twin jet mud mixer according to customers’ requirements.

Working process of Jet Mud Mixer:

The drilling flow into the jet pump 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.

jet mud mixer

Jet Mud Mixer Features & Benefits:

1. Jet Mud Mixer is a single jet mixer combined with 45 KW ( or 55 KW ) sand pump and a jet mud hopper or a double jet mixer of two pumps and two hoppers.
2. The weighting mud mixing hopper can be combined with a pump or be used independently with pump connected together by manifold valve.
3. Put the drilling fluids materials ( bentonites, barite powder ) and the corresponding chemical additives ( polymer ) into circulation tank.

mixer

Daily maintenance:

The necessary maintenance can improve the working reliability of the jet mud mixer, and prolong its service life.
The work is cleaning the feeding hopper and mixing chamber, keeping the equipment neat.
Periodic maintenance.
Check the fasteners.
Check the fasteners once a month, be sure they are tightening.

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. Welcome to inquiry DC advanced Jet Mud Mixer.

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