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Monthly Archives: March 2017

Production stage of Mud tanks in DC Workshop

According to 60 days working overtime of DC Solid control. The mud tanks already finished the welding process and to sand blasting.

mud tanks

The mud tank detail requirements from the end user:

1. Mount 4 ” gun line inside the pit, photo attached in the email. Tank structure has to have the following tichnesses : 6 mm walls, 6 mm ribbed on roof, 8 mm bottom plate. Inclinated bottom toward the suction point. Equipped with gun line inside of 4″.
2. Covers on roof for checks with access lathers inside and outside. Handrails protection all around the pit. Acces stair on exterior have to be removable in case of need.
3. Suction flange conection has to be DN 200 PN 10. Discharge flange has to be DN DN 150 PN 10 mounted on the roof. Vent elbow, flange mounted DN 150 PN 10. Reducer shaft D55 SS AISI 304, iniside the tank shaft D 80, D 600 and diameter with pallets D 1016, material SS AISI 304.

mud tank

Painting request:

Execution:Tolerances for welding joints according to EN ISO 13920-AE, and for machined surfaces ISO 2768-MK. Hydrostatic test for at least 24 hours. Corosion protection consisting in sandblasting SA 2.5, interior paint with Epoguard V64020 – 500 microns, exterior paint with Epozinc 85 – 75 microns, Epocoat V164 – 125 microns, email plyurethane coat and primuran E1529 – 75 microns. Half grenn RAL 6024 and half white Ral 9010.

Next working of the mud tanks, please follow up my blog.

DC 3″ Low Pressure Mud Guns At The Stage Of Delivering

Mud gun is designed for using in a solids control system of a drilling rig. It is a tool which is mainly used for mixing drilling mud in the circulatory system and to prevent the mud from depositing

mud gun

DC Solid control got the 12 pcs mud guns from abroad and packaged well to delivery this days. DC offered mud gun is considered to be one of the best assortment in the oil and gas industry. With a nozzle insert that is lined with a engineered elastomeric, our mud gun holds up and last longer and will not wear as easily as the common steel insert types. which is better for the wear on mud pumps. Also has a 360˚ rotating swivel style body and collapsible handle, as well as the ability to be customized to any length, flanged , threaded type.

mud guns

3″ low-pressure guns are constructed of rugged materials to resist wear and corrosion for long life in harsh conditions. The 3” unit is intended for high volume applications, such as mud mixing systems that employ centrifugal pumps. DC Mud Guns are available with handles, which make it easier to rotate the unit on its integrated 360° swivel joint.

Call or email today for a quote on these mud guns. thank you.

DCS850-2K shale shaker for CBM Project

This month, DC Solid control manufactured 2 sets DCS850-2K shale shaker for Indosine CBM( Coalbed Methane) project. The shaker also can be called vibration device. It is the first stage solids control equipment. Usually it can separate particals larger than 76 microns.

shale shaker

Specification parameter of DCS850-2K shale shaker:
1. Motor Power 2×1.5kw
2. Treating capcity: 80m3/h
3. Screen Qty: 2 panel 850×1250mm (40~200 mesh)
4. Dimension:  2260×1860×1380mm
5. Weight: 1280kg

As the optimized design and stable performance, linear motion shale shaker now is the most popular model applied by the drilling contractors. Matching with DC own designed and manufactured shaker screen of different mesh number.

DC linear motion shale shaker suites for customer’s various applications. Easy method to replace the screens greatly shortens the downtime. Shale shaker deck angle adjustable while running enable to achieve the proper solids conveyance and fluid end point. High G force and large screen area make sure the stable performance when treating the large flow drilling mud.

DC Solid control attended to the 2017 CIPPE in Bei Jing

China International Petroleum & Petrochemical Technology and Equipment Exhibition (cippe) is an annual gathering of petroleum and petrochemical industry.

With a magnificent exhibition space of around 90,000 sqm, 18 national pavilions, 1,800 exhibitors and over 80,000 professional visitors from 65 countries and regions, cippe has become the largest petroleum exhibition in the world.


To be as a top supplier of solid control in China, DC solid control attented the exhibition each year to meet old and new clients, also learn something to other international top producer.CIPPE2

cippe2017 Beijing has an attendance of 18 national pavilions from USA, Germany, UK, France, Canada, Danmark, Italy, Russia, Korea etc. The well-known global enterprises such as ExxonMobil, Caterpillar, Schlumberger, 3M , MTU, National Oil Varco, Schneider, Cummins, Honeywell, Rockwell, AkzoNobel, Hempel, Endress+Hauser, and so on , have all participated in the event.


How to choose a suitable mud gas separator in oilfeld

A Mud Gas Separator , or gas buster, is common on most drilling rigs throughout the world. The mud gas separator is used to separate wellbore gas from the drilling fluid while circulating out a kick or circulating any gas present in drilling fluids during drilling or workover operations.

mud gas separator

There are numerous factors that go into properly sizing a mud gas separator system:

1. Kick size – A reasonable scenario for a kick size is needed so that the size of the gas bubble when it is circulated to the surface can be calculated.
2. Maximum casing pressure – The casing pressure realized when the gas reaches the surface.
3. Kick circulation rate – The kick circulation rate is required in order to calculate the gas flow rate through the system.
4. Vent line friction – The vent line friction is needed in order to calculate the required height of the fluid leg.
5. Mud leg height – The minimum mud leg height is calculated using the vent line friction pressure and the fluid density anticipated during the kick circulation.

DC Professional staff tell you how to assemble mud cleaner

Mud Cleaner is one compact unit of Desander, Desilter and Shale Shaker. As for the desander and desilter, hydrocyclone is one of the most key parts. Below is the methods of how to assemble it from DC Professional manufacturing team.

To assemble a desilter hydrocyclone, we need to put the Apex in the Orifice Nut at first, then tighten up the Orifice Nut to the Cone Tube. Right now, it’s usually very common that the shell and the Cone Tube are made into one whole part.

mud cleanes

After assembled the above parts, there is one important step which is to assemble the extended overflow pipe. Here we need to use rubber ring and sealant. Pop out the sealant on every edge of clamping band, so it can enclose the rubber ring and protect the hydrocyclone from get out of drilling fluids.

mud cleaner

At last we can assemble the 4 inch hydrocylones on the manifold of the mud cleaner. It’s quite the same to assemble the desander hydrocyclones on the manifold of mud cleaner. However, since the desander hydrocyclone is 10 inch which is a bit large, the clamping band don’t need to using sealant to enclose the rubber ring.

Sometimes, if we disassemble the hydrocyclones from the Mud Cleaner, we could take it as a shale shaker. For DC Mud Cleaner, it’s quite convenient to remove all the hydrocyclones

Massive stockpiles mud guns in DC Warehouse

Mud gun is a device used to agitate drilling mud on a drilling rig. More of a nozzle than a gun, a mud gun is connected to a pump to circulate the drilling mud and prevent the solids from settling in the mud tank.

There are massive stockiles mud guns in DC warehouse to wait your inquires. In order to keep the mud as fluid as possible, a mud gun is used to keep the tank agitated and mixed. Mud is made by mixing water or oil with a clay-like substance that also contains numerous other chemicals into a large tank called the mud tank on a drilling rig.

mud guns

The mud gun designed by DC Machinery has a simple structure that offers a flexible operation and is easy to be used. It is commonly used to defend against the precipitates in the solids control system.

The equipment is installed in mud-tank. The equipment is used to jet the high-pressure drilling fluids inside the mud-tanks, in the bit to avoid the deposition of solids at every corner of the pump inlets and mud-tank.

DC Mud Guns are available for rotation adjustment to allow the operator to optimize the mud guns performance. The replaceable wear resistant jet nozzle is used, which is special design with better shearing.

Buy diesel tank please contact DC Solid control

Welcome to DC Solid control’s mud tanks web page. Our company has been in the oil & gas drilling equipment industry for over 10 years, supplying new oilfield tanks and drilling mud tanks to customers in practically every producing region in the world. We are here to serve all your drilling equipment needs.

diesel tank

Oil Field Tanks are supplied with steel cradles and cages access ladders. Optional products include manholes, bottom fill kits, self closing gates, flame arrestors, emergency vents, pipe work and fitting locations as required and various coatings both internal and external. Sizes range from 1000L to 150, 000L

Diesel fuel tank is the specialized tank for diesel and generator, which mainly consists of storage of tank, self priming centrifugal oil pump, filter, flowmeter, explosion-proof liquid-level switch, liquid level meter, elevated oil tank & manifold, stainless steel valve.

diesel tanks

Diesel Tanks are supplied as standard with:

Lifting lugs and ID plates
Fill, Dip, Vent, Discharge socket, Drain point and Dipstick
Galvanized ladders and platforms fitted to Type 10 and above
Type 20 and above fitted with cradles (150mm) high Type 15 and below fitted with four legs.

So if you want to buy all kinds of mud tanks, please contact DC Solid control. DC Solid control’s highly skilled production team is ready to meet the needs of your business.

A decanter centrifuge from DC Machinery are painting now

The decanter centrifuge ordered by my Russian client are painting now this morning. It is used for oil drilling site to process the drilling fluid and located after the desilter.

Drilling rig centrifuges have got large development on both structure and functions. Especially there are many manufacturers design centrifuges according to drilling mud features or property. Then the centrifuge become many models and types used in various drilling projects.


Actually, in drilling rig solids control system centrifuge is the most complicated one. It is rather difficult for operator get leagal operation, etc. However, in long term its important position is following shale shaker subsequently..

So DCLW centrifuges have adopted new technology on conveyor. Such as mount carbon tungsten alloy plates by welding and bolts. This increase centrifuge conveyer usable life and whole equipment duration.

You are welcome to contact Tangshan Dachuan Machinery to get more detailed infos of different type centrifuges, we will supply our best service for you.

DC Solid control desander and desilter working process

Desilters and Desanders are used to process large volumes of drilling fluid to remove abrasive sands and silts that shale shakers cannot remove.

DC Solid control Desilting and Desanding 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.



Desanders are what larger diameter hydro-cyclones are typically referred as, and will be the next step in solids removal after an initial scalping shaker pass. Desanders are capable of handling large flow rates, up to 500 gpm per cone, but do not offer as fine of a cut. The underflow will be recirculated over a shaker and processed again while the overflow will be free to move on to the next stage, typically a desilter.



Desilters are what smaller diameter hydrocyclones are typically referred to as, and will generally be used directly after a desander. Occasionally desanders will not be necessary and the desilter will operate immediately after the scalping pass. While desilting cones can achieve a finer cut, down to 20 micron, than desander cones they cannot process at as high of a rate per cone and are headered together in order to meet the desired throughput. The Underflow will be recirculated over a shaker and processed again while the overflow will be free to move on to the next stage, whether it’s a centrifuge, chemical treatment, or a finished product.

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