Monthly Archives: December 2018

DC Signed a sales contract of waste mud system at the end of 2018

At the end of 2018, customers from a well-known engineering service company in India visited Tangshan Dachuan Machinery Co.,ltd. is short for DC Solid control and had detailed negotiation on business cooperation with DC teams.

The clients were interested with our drilling waste management system. DC Profession technical service engineering team explained process flow of DC drilling waste management system, working principles of centrifuge and Hi-G dryer to customers based on the live treatment system while drilling, and showed them excellent treatment effect of Hi-G dryer and centrifuge.

cutting dryer

As part of our drilling waste management services, we also supply highly skilled staff to ensure equipment are installed correctly and that they are fully operational and well-maintained. Our employees, who trained to provide support swiftly, are on-call worldwide 24 hours a day, everyday, to be available at a moment’s notice.

vertical cutting dryer

Recently, DC had successfully signed a sales & purchase contract of a set of drilling waste management with the company. For the first cooperation project, the company thinks highly of excellent products quality and after-sales services of DC and expresses its intention to develop more cooperative channels with DC Solid control in the future.

Shale shaker structure and industry used

Shale shaker is the most important part in drilling fluids processing system,also plays a decisive role in drilling mud system. Shale shaker decides the performance of the whole solids control system. DC provides both linear motion shale shaker and balanced elliptical shale shaker. DC series shale shaker can meet varied needs of the different customers.



Shale shakers typically consist of large, flat sheets of wire mesh screens or sieves of various mesh sizes that shake or vibrate the drill cuttings, commonly shale, across and off of the screens as the drilling fluid (mud) flows through them and back into the drilling fluid system.

This separates the solid drill cuttings from the fluid so that it can be recirculated back down the wellbore. In oilfield industry, linear motion shale shakers are widely used.

Screen panels play a major role by removing particles larger than the mesh size. Screen selection is critical since shaking is the primary stage in the removal of solids. Improper screen selection can lead to de-blinding, loss of drilling fluids, premature pump part failures, overloading of other solids removal equipment within the mud systems, decreased service life , reduced flow rate capacity, and serious problems in the wellbore.

4 Inch Mud desilter from DC Solid control

Desilters are designed to remove silt-sized (20 to 74 microns) solids from drilling fluids. The commonly used cones of desilter is 4″. DC’s desilters are simple to operate and easy to maintain.

Mud Desilter is the third class solid control equipment to treat the drilling fluids. That is a centrifugal device for removing very fine particles, or silt, from drilling fluids to keep the amount of solids in the fluid at the lowest possible point. Usually, the lower the solids content of mud, the faster is the rate of penetration.



Advantage of Mud Desilter
The number of cyclone is flexible, according to customer’s needs.
Pure polyurethane cyclone is more durable, and can be exchanged with the international brand.
Desilter is designed exquisitely and easy to install.
Less vulnerable parts, and easy to maintain.
Competitive price, and cost-effective.

DC Solids control is the designed,selling,production,service and delivery of Chinese based manufacturer. We will provide the high quality desilter and best service. Your best desilter start from DC solids control.

The Horizontal Decanter Centrifuge Features & Benefits

The Horizontal Decanter Centrifuge is designed for efficient and continuous separation of solids from suspending liquids by sedimentation and decanting, through the centrifugal settling principle. Centrifuge dewatering combines a compact design with efficient solids dewatering for maximum cake dryness.


Features & Benefits of decanter centrifuges 
Fully enclosed design/operation delivers reduced odor for plant and operators
High capacity in a small footprint provides efficiency and minimizes building and capital costs
Maximum cake dryness reduces handling and disposal costs
Fully automated operation and efficient process control provides optimum performance with reduced labor costs
Simple shut-down and flush cycle for minimal water consumption
Robust SS construction for wetted parts provides extensive abrasion protection, maximum uptime, and low maintenance costs.

decanter centrifuge

Besides about the material, the contact parts are typically made of 316 Stainless Steel, but Hastelloy, Duplex, Nickel, Titanium or similar alternatives are available depending on the application. With abrasive material customized wear protection materials and designs are included.

DC Machinery offers both variable speed and fixed speed decanter centrifuge used for many industries fields. If you have interest with decanter centrifuges, please contact us.

Main features of DC Horizontal decanter centrifuge

Horizontal decanter centrifuge has the advantages of good separation performance, well-adapted, can be automatic continuous operated, exercise intensively is small, small footprint and lower maintenance cost.

drilling fluid centrifuge

Main feature of the decanters centrifuge compared with others:
1.1 Separation factor is high: Max 4000.
1.2 Ration of length and diameter is big: Max 4.2.
1.3low energy consumption: 1/3~1/2 of the same product.
1.4 Smoothness Of Operation : Parts precision dynamic balancing and the whole set machine work dynamic balance, vibration strength of the decanter is below 5mm/s, is fall far below 《Technical condition of decanter centrifuges》, 7.1mm/s.
1.5 Low noise: less than 85Db(A).
1.6 Operating reliability: DC company decanters differential mechanism adopt planetary gear transmission in high speed, and adopt pin-cycloid planetary gearing in low speed to improve the working reliablity. Spiral drive main bear use roller bearing and the structure of the thrust ball bearing which can improve the bear ability of the Axial force.
1.7 Wear-resistant treatment: The touching part of our company is made of stainless steel and superior alloy steel, the blades of screw pusher paint abrasion- resistant alloy or spectacles special cemented carbide.
1.8. All kinds of models: The diameter series of the decanter produced by our company are 250、350、450、550, slenderness ratio is 2. 3. 4. ect.

Please contact DC Machinery to get more infor about decanter centrifuges.

High quality oilfield solids control system from DC Solid control

High quality oilfield solids control system is used to process drilling mud during whole oil and gas drilling. Widely used in land drilling, semi-submersible drilling, offshore drilling with jack-up rig, the CBM drilling, and so on.

The whole drilling mud system including the 4 phases solids control equipment. The shale shaker, desander, desilter, decanter centrifuge, degassers, mud agitator, pumps, mud tanks and so on.




Drilling mud will flow into ground via drilling pipe and bring the cuttings out. Drilling mud is expensive also it will pollute environment we design solids control equipment. Drilling mud system is the blood of well drilling.

Solids control system process/purify/recycle/reuse the drilling mud under serial equipment process. Including different phases at different drilling period. Drilling fluid process system will definitely decrease drilling cost and benefit much on conserving environment.


Onshore and offshore oil&gas drilling, CBM exploration, HDD,waste management, etc. process system.

HDD mud recycling system From China Supplier

HDD mud recycling system is design for Horizontal Directional Drilling ( HDD ) rig. Depending on drilling mud requirement, a HDD mud recycling system can including shale shaker, desander cyclone, desilter cyclone, decanter centrifuge, mud tank, mud agitator, mud gun, transfer pump, etc.



DC Mud Recycling System structure for HDD

1.Combination of screening, desanding, desilting,Compact structure, easy for transportation and small footprint.
2. Foldable design of handrail and walkway. No dis-assembly is needed while transferred.
3. Fast connection is adopted for the components of equipment.Easy for dis-assembly, saving time and labor.
4. The process of the cyclones is the same with Derrick’s and can be interchanged with each other.High wear-resistance and long life span under normal service
conditions (more than 3,800 hours).
5. Explosion – proof lights are equipped. Meet the needs of the construction at night and easy and safe for operation.

According to different geological conditions and customers’ requirements. DC Solid control can design and manufacture different sets of mud recycling systems to match with HDD Drilling Rig. Welcome to consult and discuss. Your satisfaction is our eternal pursuit.

DCS630 Linear motiion Shale Shaker Main specification

Shale shaker is first phase solids control equipment in drilling fluids processing system, also known as key solids control equipment in drilling mud system. Linear motion shale shaker is the most commonly used shale shaker.



DCS630 Linear motiion Shale Shaker is designed to cope with various mud conditions with features of big screen area, big handling capacity,and easy maintenance. The Screen Vibrator is from Martin of USA or OLY of Italy.

Mesh: 60~180
1. Screen Area: 2.36 m3
2. Screan-Angle: -5~5 degree
3. Amplitude (P-P value): 2-4
4. Rotating speed of exciting vibration: 1500 rpm
5. Projective Index: 4-6 g
6. Power: 2 x 2.5 HP
7. Handling capacity: 528 GPM
8. Overall Dimensions: 2978*1756*1395 mm
9. Weight: 2120 kg

The DCS630-3 linear motion shale shaker absorbed advanced tech at home and abroad ,and integrated DC own design. DC complete series shale shaker can meet customers’ variable demand. Clients feedback proved the advantages of this kind of shale shaker: high G-force, wide screen area, compressed structure, cost-effective, etc.

Decanter centrifuge used for Drilling fluids circulation system

Drilling fluids normally contain two categories of solids, commercial clays and drilled solids, both low gravity, with specific gravities (SGs) of about 2.6, and weighting agents, usually barite, with an assumed SG of 4.2.



decanter centrifuges could be used to separate the weighting agent from the low-gravity solids, because the barite particles, due to their higher SG, would be heavier. Drilling mud decanter centrifuge is the fourth stage equipments for a drilling mud system.Drilling mud cleaning first stage uses drilling fluids shale shaker ,then second stage uses desander,third desilter,(now drilling mud cleaner is widely used to replace desander,desilter).



A decanter centrifuge consists of a solid cylindirical bowl rotating at a high speed, a scroll rotating in the same axis with a slightly different speed, a scroll drive adjusting the speed difference and the body, which carries all the rotating elements.

Decanting centrifuge also deliver high fluid recovery rates and efficient solids control to significantly reduce the operator’s total mud cost and limit waste disposal volumes. DC-China leading decanting centrifuge manufacturer.