Drilling fluids equipment

Rheological parameters and the physical meaning of the plastic flow patterns

① static shear strength (τs)

Start drilling fluid flow required minimum shear stress , which is a continuous measure of the strength of the space frame structure of the drilling fluid formed in the stationary unit area . Continuous space grid structure called gel structure, also known as static shear gel strength . Closely related to the static shear size and drill cuttings and drilling fluid suspension heavier material 's ability to stop the cycle . However, static shear force can not be too large, otherwise the pump difficult and sometimes choke drain formation . Adjust the drilling fluid and the dispersion of clay content , plus inorganic electrolyte membrane adjust the electrostatic repulsion and hydration repulsion between the particles of clay , plus measures to adjust the viscosity fluids like static shear stress .
 
② ultimate static shear force

Various drilling fluid system clay particles due to the irregular surface charge and hydrophilic uneven shape at rest is easy to form a network structure. The minimum static shear stress damage drilling unit volume mesh structure on the need, the drilling fluid called "extreme static shear force ."

③ dynamic shear force (τ0)

Line segment extended flow curve intersects the axis of a shear stress τ0, which is a hypothetical value , a measure of the strength of the mesh structure of the drilling fluid when drilling fluid is reflected in a laminar flow state . Factors that affect the value and size of the adjustment method is basically the same as the static shear .

④ plastic viscosity (μPV)

Bingham formula derived from that plastic viscosity plastic fluid rheology curve segment is the reciprocal of the slope , it does not change with shear force . Description is the viscosity of the system architecture to break speed equal to the speed of recovery time . It is a fluid phase between the particles in a laminar flow system the solid state , between the solid particles and the surrounding liquid phase intermolecular friction formed . Plastic viscosity of the drilling fluid solid content , shape and degree of dispersion of solid particles , the surface lubricity and viscosity of the liquid itself, and other factors . It is directly related to the drilling fluid suspension capabilities, its value should be moderate. If the viscosity is too high the plastic system , reducing the time needed , the solids  control equipment is generally used to reduce the solid phase solid phase content , increase inhibitory system, reduce the activity of the solid phase dispersion ; if urgent need to reduce the dilution water can be added . If you want to increase the viscosity of the system can be added to the plastic polymer organic polymer thickener or clay.

Brightway Centrifuge Structure

1. Structure

This decanter centrifuge consists of unit assembly of revolving half, power gear mechanism, overload unharness system, base and casing, feed tube, electrical system, etc.

Graph one shows external dimensions of the most machine while Graph five illustrates the exploded drawing of the unit.

1.1 Unit assembly of revolving half

The rotating assembly consists of such parts as bowl,  conveyor, gearbox, etc., and that is fastened horizontally on the bottom through 2 pillow blocks. The bowl may be a column - cone structure and there ar six adjustable dams with a pool depth on the large finish semi-shaft of the bowl. Inner ribs ar welded on the axis of inner columnar surface and inner conic surface. The unit of the screw conveyor is especially welded together with core pipes, accelerators, volute flight, etc. and that is placed coaxially within the bowl by the bearings on the semi-shafts of 2 finish of it. The spline housing of the large finish is connected with case by spline shaft. The screw conveyor is double-ended, left rotating, whose conveyance face is bead welded with wear-resisting laborious alloy layer.

Graph seven indicates the exploded drawing of motion components assembly.

1.2 Power transmission and overload unharness system

1.2.1 Power transmission

The main power transmission drives the bowl to rotate by motor and hydro-coupling put in on the axis of it, through belts and pulleys. the rear power transmission drives the input shaft of case to rotate by motor and machine, through reducer and therefore the machine of case and thru overload unharness.

1.2.2 Over load unharness

This machine adopts a double protection live of mechanism-electric appliance, embody hydro-coupling, mechanic overload unharness.

1.3 Base and casing

Consist of vessel assembly, base, vibration dampers, and transport frame.

1.4 Assembly of feed tube

The assembly of feed tube involves that of feed tube and improvement tube. The improvement tubes is employed for flushing the centrifuge before shuting down.

1.5 electrical system

Electric system includes management cupboard, limit switch and corresponding cables.

Brightway is the professional manufacturer in the solids control euqipment and drilling fluid system.Welcome every customer to visit our factory.

HDD drilling mud system

Aiming at Trenchless Directional Drilling mud purification and recycling system exists using conventional shaker run the risk of mud , grit removal and desilter not complete, mud and other small particles can not clear the problem , brightway can provide the best quality solids control equipment and system .

Using horizontal directional drilling technology for pipeline crossing construction , urban construction and municipal pipe network transformation electrification , communications and cable laying across large and small rivers, lakes, and the demolition of the building can not be the best choice is not to disfigure the state and protection of the environment the best method of construction . In recent years, the level of directional drilling technology in various countries and various sectors of the world has been widely used in China in recent years, with the rapid development of pipeline construction , especially natural gas project construction , directional drilling large diameter pipes began to , long-distance, large wall thickness across the areas of expansion , the level crossing has been greatly improved . Because of the large caliber, long-distance directional drilling developed in recent years , through the introduction of foreign rig the general majority, its ancillary equipment has not attracted much attention , especially in the mud purification and recovery system. However , as people 's awareness of environmental protection , how to conduct safety and environmental protection become directional drilling directional drilling development.


An important issue.
In trenchless directional drilling , due to the hole diameter, such as natural gas and Jining pipeline project , the use of «1 016 mm pipe, in reaming stage , a very large amount of mud . Typically , trenchless directional drilling is the open system , in general through the mud in the amount of 3 000 m3 or more, some even up to 10 000 m3 [1]. Large amount of mud , the mud will not only increase costs and land acquisition costs , more serious problem is through the completion of the waste mud Without effective treatment,

Pollution of farmland and water , will cause ecological problems. As people 's awareness of environmental protection , development and use of mud tank purification and recovery is imperative. Purification and recovery of mud slurry can be returned to solid phase processing and recycling, while reducing the amount of slurry , to reduce environmental pollution and reduce the amount of processing of waste ; the other hand, the recovered slurry are " cooked mud " , the performance is relatively stable, unstable performance can reduce the emergence of underground accidents.

Brightway Desilter

Domestic drilling mud in drilling waste management instrumentality performance level compared with foreign countries, there's still a spot, it's necessary for foreign solid management instrumentality gift state of affairs investigation and learn the technical advantage, promote our country's solids management instrumentality analysis and development of producing technology. This paper collected reception and abroad within the solid section analysis instrumentality mud desilter style, analysis, calculation and use, material and also the basis of analysis achievements, with the present within the mud desilter to some existing issues within the style a replacement form of mud desilter device theme. Connecting with the assembly apply, this paper primarily on the subsequent many aspects of the planning work: 

(1) Through the domestic and foreign mud desilter connected assortment of knowledge analysis, found the domestic and foreign desilter characteristics and development direction, combined with domestic desilter technology state of affairs and lubricator solid section management the particular state of affairs planned preliminary style.

(2) in keeping with the mud desilter of the operating mechanism and conditions of use, advises the desilter the structure and also the main structure style.

(3) Through the intensive field investigation and technical demonstration, with China's a part of the oil field, first, from the facts, supported technical practicableness, structure of advanced BWCNQ100-8N sort desilter style theme and technical parameters.

(4) mistreatment computer-assisted technology style strategies, the prevailing solid management instrumentality supported the analysis results, and do the BWCNQ100-8N desilter theme style and theoretical calculation.

(5) within the structure style and mechanics analysis and intensity, and on the idea of the vortex end of the most components of the structure style, draw the particular assembly drawings and also the necessary drawing.

Brigthway can provide you the professional solids control equipment and drilling fluids system.

Drilling Mud Desander and Desilter

Desanderand Desilter: Desander desilter are made with a hydrocyclone and a cyclone underflow handling and recycling of drilling fluids shale shaker small fine mesh composed. Drilling desander 30-90μm used to remove solid particles; desilter used to remove the 10-30μm solid particles. Carve cyclone and the cyclone particle size D50 is not only related to the size of the structure, but also with the drilling fluid density, density and pressure of the liquid inlet.Drilling desander shale shaker should be used as the second stage solid phase after removal of some equipment, and desilter should be used as the third stage solid-phase removal equipment.

In order to meet the requirements of handling all of the drilling fluid , drilling fluid and desilter desander must be made ​​up of several components cyclone cone . In order to ensure normal operation cyclone . Inlet pressure must be maintained at 0.25 --- 0.35MPa this range. Desilter swirl cone because many long pipeline , the inlet pressure should be whichever is greater ; drilling desander less due to cyclone cones , pipe sections, the inlet pressure is due , whichever is smaller . Inlet pressure depends on the size drilling sand pump matching is reasonable, therefore drilling sand pump selection is critical, usually 40mH2O drilling sand pump head around with the drilling fluid displacement and division desander mud is equal to the amount of the calibration process , you can meet the requirements. 

Meanwhile, in the selection of drilling fluids and desilter desander must take into consideration the maximum displacement of drilling pump , with its reach a reasonable match . Both devices use the time , no strict restrictions , usually in shallow stratigraphic drilling and soft formations , drilling cuttings large particles content is high, the two must be used simultaneously ; at drilling depth strata and hard strata , if with fine mesh shaker can be used directly in addition to handle drilling mud , which have little impact on the quality of drilling fluid purification , and very 
economical.

In the end,Welcome everyone to visit the professional manufacturer which is the leading company for the solids control equipment in china.

Thanks All !!

Vacuum Degasser

Brightway Vacuum Degasser is the degassing equipment to removing the little bubble in drilling fluid.

Oilfield vacuum degasser adopt the horizontal centrifugal force and negative pressure to remove the bubble, the handling ability is 290m³/h, the degassing ability can meet 95%-99%, it can remove the bubbles in drilling fluid effectively, avoid the well kick, blowout, and leakage fatality caused by the gas cut. 

Oilfield degasser has the advantage of easy for installation, operation, and maintenance, trouble-free long working time, it can be used as the mud agitator to mixing the tank drilling fluid, replace the centrifuge tank.

Oilfield Vacuum degasser produced by Brightway has the advantages of compact structure,reasonable design and so on.

Oilfield Centrifugal degasser produced by Brightway company is suitable for various supporting of drilling mud solids control system

Welcome everyone to visit our factory.
-----The  End------



Allen Lee
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

Mud cleaner

BWZJ Mud Cleaner is the second class and the third phase solids control equipment, and combine desander, desilter and underset shale shaker as one complete equipment, compressed structure, small size and powerful function, it is the ideal choice of second and third phase solids control equipments.




ANSNY finite element analysis Low flow sieve box Base of vibrating screen

Cleaner assembly          Explosion-proof electric cabinet



Features & Benefits of BW Mud Cleaner

1. Adopt ANSNY limited elment analysis, optimize structure.
2. Heat treatment on complete deck, grinding sand, pickling phosphating and hot dip galvanizing
3. Adopt SS304 or Q345 high-strength alloy material.
4. Vibration motor is form Italy OLI.
5. Electrinic control system if from Huarong brand or Helong brand explosion-proof elctronic switch.
6. High strength compound rubber material used to reduce shock
7. Cone adopt high wearing-resisting polyurethane and High copy Derrick structure
8. Inlet and outlet adopt fast joint connection

Welcome everyone to visit our factory.
-----The  End------

Allen Lee
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

All rights by Allen from Xi'an BW solids control Co.,Ltd.

What centrifuge we can provide similar as MI Swaco CD-250 centrifuge?

Brightway Centrifuge BWLWF220 can be used for the mineral drilling rigs, with the similar capacity as MI Swaco CD-250 centrifuge.

Decanter centrifuge

Model	CD-250	BWLWF220
Brand	MI-SWACO	Brightway
Bowl diameter	253mm	220mm
Bowl length	941mm	880mm
Rotary speed	0~4500rpm	0~4800rpm
	4000rpm operation speed	4000rpm operation speed
G-force	2773G	2840G
Weight	1010 KGS	1000KGS

Advantage:

1. Small footprint
2. High efficiency, with max speed as 4800 rpm and separation force as 2840G
3. Already being used in mineral drilling,diamond drilling, HDD etc.
4. Competitive price 

As the professional solids control equipment manufacturer, we also produce shale shaker, vacuum degasser, mud cleaner, mud tank, and mud gas separator etc.

Allen Lee
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

All rights by Alice from Xi'an BW solids control Co.,Ltd.

Shale shaker

Shale shaker is the primary & initial device to be used to remove the solids in the drilling fluid, which would be used as the first stage solids control equipment in the purification system, and work as other devices, such as desander,desilter, mud cleaner, centrifuge that all are located downstream of the solids control system. Basicly the complete circulation system also includes gumbo remover, scapler shaker, and dryer shaker. All of these equipment work together with other auxiliary devices, such as mud gun,mud agitator, centrifugal pump, mud hopper, gas bruster, degasser, etc, to remove the drilled-solid that bring to the well surface by the drilling fluid.

Shale shakers drive by the vibratory motor. Motor imparts vabration force onto the screen basket ( or called screen deck), making the screen moving, so that the drilling fluid liquid phase go through the openning of screen, and drilled solids that bigger than the mesh would be moved to the discharge end of shale shaker. As the development of shale shaker, there exists three different motions of shale shaker:

Linear Motion Shale Shaker -BW

1. Circular motion shale shaker;
2. Linear motion shale shaker;
3. Balanced ellipse shale shaker;
4. Unbalanced ellipse shale shaker.

Linear motion shale shakers are widely used in oil & gas drilling after it was introduced into the petroleum drilling. As we discussed previously that linear motion shale shaker is drived by two counter rotating motor which are installed on the top of screen deck, and keep 45 degree angle with screen basket. But why it is 45 degree angle? why not 30 degree or 60 degree？

As we known that shale shaker processing capacity is effected by the combination of two factors: solid phase limit, and liquid phase limit. If these two vibratory motors is horizontally mounted on the screen deck, the vibration force at top & bottom point of horizontal level would be biggest, so the solids only jump up & down, can not move to the discharge end of shale shaker. While if the two motors is installed with 90 degree, it would be helpful for drilling fluid to flow on the screen, and solids will can not be removed. So to balance solids limit & drilling fluid liquid limit, the two motors are normally kept 45 degree with screen deck, so that the drilled solids would be tilted uphill towards to the discharge end of shale shaker.

Welcome everybody vist our factory.

Allen Lee
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

Good attitude   Active action       Bright future

Function of Drilling Solid Control equipments

Solids control procedures are often ignored in many oil & gas drilling projects. Many people do not understand very well the basic principles of drilling fluids solids control. They persist that drilled solids are evil & insidious. In a short term, drilled solids increasing generally does not reveal their economic impact immediately, and the detrimental effects are also not immediately obvious on the drilling rig. But in a long term, increasing of drilled solids would generate many problems on drilling rigs. So drilled solids need to be removed at the surface by solids control equipment, such as shale shaker, mud cleaner, centrifuge, etc. to reduce the risk.

Drilled solids damage reservoirs, increasing drilling cost, and also create large drilling processing disposal cost. To drill an oil or gas well fast, safely, and under budget, it is necessary to remove the drilled solids which not only include drilling cuttings, but also sloughs that drop from the wall of borehole. If these drilled solids can not be removed timely, they would cause many problems, including:
● Filtrate damage to formation
● Drilling rate limits
● Drilling string stuck
● Borehole Problem
● Lost circulation problem
● Direct drilling fluid cost
● Increasing disposal cost

Decreasing drilled solids is analogous to buying an insurance to an event that will not happen to drilling rig. Nobody wish these above problems happen to any drilling project, but they do exist, and they are real. The effects of drilled solids on economics of drilling a well is subtle, and increasing of drilled solids does not result in a disaster immediately on a drilling rig. When the drill bit ceases to work and torque increases, driller know that it is time to pull the bit. But when the drilled solids increases, the detrimental effects are not apparent immediately.

That is why the drilling fluids are used to bring drilled solids to the surface, and removed timely by the solids control equipment, such as shale shaker, desander, desilter, mud cleaner, centrifuge, etc. But not all the solids are removed, and it is also impossible to remove all the solids. Some solids that smaller than the shaker screen openings would stay in drilling fluids, and other additive agents, such as barite, clay, etc. are also essential to adjust drilling fluids property.

Allen Lee / Sales Manager
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

Good attitude   Active action       Bright future

Kem-Tron Tango 500 Mud Recycling System

Kem-Tron mud recycling system is one of the popular mud system in the world . Many users choose Kem-Tron for solutions , here I will introduce one of Kem-Tron mud recycling system for you .
This unit is capable of achieving a cut point of 25 microns. The TANGO 500T has one (1) dual-deck shaker with a total screen surface area of 56 ft2 with six (6) 5” hydrocyclone desilters. The TANGO 500T carries a total tank volume of 3,100 gallons between two (2) compartments along with three (3) 250-Series centrifugal pumps with a respective horsepower rating of 25hp, 20hp, and 20hp. All the pumps are located in the pump house to protect from the elements.
Characteristics of Kem-Tron 500 mud recycling system

Firstly , this mud recycling system is a mobile unit which have wheel at one side of this unit for easy moving . Secondly , it’s a combination of recycling mud part and mixing mud part . Thirdly , This recycling unit don’t have mud agitator which don’t have a good agitate fuction . Forthly , It’s mainly focused on recycling mud not mixing which enabled this system flexible and exquisite.Lastly , the price for this recycling unit is costly .

BW Solids Control is a Chinese manufacturer for mud recycling system and have started to design for mobile system recently . For BW drilling mud system , here is some breif info for that.
Main Equipments and Layout for BW500GPM drilling mud system

1 x linear motion shale shaker BWZS70-3P
1X Mud cleaner BWZS85-1S8N, this is the conbination of desander and desilter.
2x centrifugal pump for mud cleaner
1x mud agitator
1x mud gun
1x jet mud mixer
1x Mud tank

Advantages of BW 500 GPM mud system compared with Kem-Tron

Firstly , processing by pickling, help plating, hot-dip galvanizing, inactivation and fine grind. which is guaranteed the syetem have a longer service life. secondly,mud larger mud capacity so treating effect will be better and mixing fuctions is much better too.

Thanks for your reading and supporting.

All rights By Nicholas and Allen of BW solids control.

Good attitude    Active action         Bright future

BW Solid Control for Coal Bed Methane (CBM) Drilling

Coal bed methane(CBM) is a form of natural gas that is extracted from coal bed seams. Sometimes it is called coal bed methane, or coal bed gas, or coal mine methane (CMM). The primary energy source of CBM is a substance called methane (CH4), which is colourless, tasteless, non-toxic & flammable, making coal bed methane available to be used in all natural gas appliances in our home and also commercial applications such as electricity generation. In recent decades it has become an important source of energy in United States, Canada, etc. In Australiahas where has rich deposits, it is known as coal seam gas (CSG).

BW Solid Control System for CBM Drilling

CBM is generated either from a biological process as a result of microbial action or from a thermal process as a result of increasing heat with depth of the coal. It is hold loosely in the coal bed seams by the water & underground pressure. As the main content of CBM, methane has very low solubility to water. To explore CBM, the underground water must need to be removed by pumping, which would reduce the pressure on gas and allow it to detach from the coal bed seam. Thus, CBM that hold in the coal bed seams can be released to the surface with the flowing of water, then CBM are separated from water and collected by special device at the surface.

Coalbed methane is usually very shallow, mainly around 1000 meters. That is why the drilling rigs for CBM are normally for 1000 to 2000 meters. The type & density of drilling fluids for CBM development must be designed and fixed according to the formation pressure, and also need to allocate appropriate solids control equipment, such as shale shaker, mud cleaner, centrifuge, etc. For surface well & intermediate section drilling, drilling medium should refer to the conventional CBM drilling medium optimization principle, while for horizontal well drilling, it should use superior drilling medium, non-clay drilling fluids, fresh water, gas, such as nitrogen, air, etc. & also froams to avoid drilling medium to harm the coal bed seams.

BW solid control co.,ltd

As a professional manufacturer,BW supply solid control equipment for O&G drilling, HDD mud recycling system, CBM drilling mud cleaning system, River silt cleaning system, Geothermal enviromental waste mud cleaning system,Underground mud cleaning system, mining, coal and other industries etc.

Allen Lee / Sales Manager
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

Good attitude   Active action       Bright future

Brandt Shale Shaker VS Brightway Shale shaker

Shale shakers separate solids from liquids by utilizing a vibrating basket, which is outfitted with specially designed and sized screens. Shakers are considered the most important tool for removing drilled solids.

The well-known Brandt shale shaker is produced by National Oilwell Varco, which began to provide the solids control equipment from year 1974.

Brightway respect the leading shale shaker manufacturers including Brandt, and we also persist in our own product improvement to give our wisdom and effort for this industry.

Let's have a comparison between Brandt mini Cobra 3-panel shaker and Brightway liner motion 3-panel shale shaker.



Brandt mini Cobra 3-panel shaker shaker:



Brandt shale shaker
Dimensions (L x W x H): 2657.6 mm x 1679.7 mm x 1346.2 mm
Weir Height: 609.6 mm
Basket Angle: Adjustable 0° to +3°
Screen Type: Pretension, repairable
Screen Dimensions (L x W x H): 1251 mm x 635 mm x 25.4 mm
G-Force: 6.5 G’s @ 60 Hz/ 6.6 G’s @ 50 Hz
Deck Area: 2.4 m2
Motor Type: (2) Vibra-Motors
Motor Power (each): 2.5 hp (1.9 kw)
Vibration Motion: Linear

Brightway Linear motion 3-panel shale shaker:

Brightway Shale Shaker
Dimensions (L x W x H): 2403 mm x 1884 mm x 1448 mm
Weir Height: 944 mm
Basket Angle: Adjustable -1° to +5°
Screen Type: Pretension, repairable
Screen Dimensions (L x W x H): 1250 mm x 700 mm x 25.4 mm
G-Force: <=7.5G
Deck Area: 2.6 m2
Motor Type: (2) Vibra-Motors
Motor Power (each): 2 hp (1.5 kw)
Vibration Motion: Linear

We can see the difference from the picture and specification, but we can also see the similar points as below.
The securing method of screens is similar,which fit snugly and will not slip or slide once secured.
The screen design is similar

-The End-

All rights by Alice and Allen from BW solids control co.,ltd.

Why Galvanizing Treatment Much Better Than The Normal Painting Process?

Brightway apply the galvanizing treatment to the solids control equipment and the solids control system.

What is the difference between the galvanizing treatment and the normal painting process?

There are mainly 3 points,and let's have a look one by one.

1. The anti-rust performance of galvanizing treatment is much better than the normal painting process.

In our daily life, normally the galvanizing treatment is applied for the outdoor tubes or the underground tunnels from the consideration of the anti-rust.
The below picture is one corner of the galvanizing factory, from which you can see there are mainly for outdoor or underground use.


We apply the galvanizing treatment on our equipment and system, and in a word, it is to improve the anti-rust performance.


2.For the galvanizing treatment, there is no corner missed in this process,and both inside and outside.
In the below 2 pictures, one is to see the galvanizing treatment inside the tube, the other is to see this treatment inside the shale shaker buffer box.



3.Nice appearance of the galvanizing treatment.


Taking the example of the solids control system, let's see where the galvanizing treatment is applied?



Mud system






shale shaker



mud agitator





hopper






folding walkway



guardrail


ladder


How about the process of the galvanizing treatment?
Process : Picking-Galvanizing-Cooling-Inactive-Finepolishing



All rights By Alice and Allen of BW solids control.

MI -Swaco centrifuge VS BW centrifuge

Centrifuge is a widely used equipment in the O&G drilling mud system. It always adopts decanter principle to separate suspension liquid. In the tank system, centrifuge is located as the fourth stage handling equipments to treat the drilling mud out from the mud cleaner.

MI-Swaco is one of the world famous solids control specialist either in products quality or in service. Known to all the persons in solids control field, MI-Swaco equipments also have a higher price. Many clients inquiried us for the equivalent equipments of MI-Swaco, Derrick and NOV or some other famous brand. 

Take the MI-Swaco centrifuge model of 518 HV as an example. A customer inquire us for whether we can offer a equivalent for equipment. After comparing the main parameter, we propose our model of BW LWF450-1250N to customer for reference, below is the main parameters compare:

So far, BW dancanting centrifuge is more and more popular in word market, just shortly before we exported 6 sets centrifuge to Nigeria and Brazil for 1000HP to 2000HP drilling rig. For more information on BW centrifuge and other solids control equipments, just feel free to contact with us.

     Allen Lee  / Sales Manager

Name：Xian Brightway Energy Equipment Co., Ltd

Phone：+86-29-89300061 +86-29-89305763

Fax：+86-29-89305769

Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China

E-mail：brightway@bwsolidscontrol.com

BW Decanter Centrifuge Working Principle and Function

Decanter centrifuge is the important phase cleaning equipment in a complete solids control system to separate fine solids. It is the most high technology products among all solids control equipments.

Centrifuge Working Principle

A centrifuge works on the principle of accelerated settling. By imparting addition “G” forces to the content of a centrifuge, solids (in a solids laden fluid) will settle much quicker. To understand how a decanting centrifuge works after desilter , first look at a simple sedimentation vessel.
Solids in this fluid will settle to the bottom of the vessel over a period of time. One way to speed the process of settling is to reduce the height of the vessel so the solids do not have as far to drop. If a specific volume is required, the vessels dimensions can be lengthened or widened . Depending on the rheological properties of the fluid and the size and density of the solids, settling time can still prove quite slow. 
Centrifuge Functions
A decanting centrifuge consists of a conical, horizontal steel bowl that rotates at high speed using a double screw type conveyor. The conveyor rotates in the same direction as the outer bowl but at a slightly slower speed. 
Functions including:
1) De-water hydrocyclone underflow;
2) Remove drilled solids from the active mud system
3) Control rheological properties by removing colloidal particles in weighted drilling fluids.

A decanting centrifuge is so named because it decants or removes free liquid from separated solids. It consists of a conveying screw inside a rotating bowl By exerting increased G-force on the drilling fluid, the particles are accelerated and settle on the outside of the bowl The free liquid pool is removed and the solids are pushed away and discharged from the bowl. 
Please contact BW Solids for inquiry freely.

Brightway Vacuum degasser

BW Vacuum degassers work by creating lower pressure inside a vessel so air or other gaseous impurities can be removed from a substance, such as water or even molten steel. The air is siphoned from the vessel after pressure is lowered enough to force the gas from the substance. A high-vacuum process environment is maintained for a variety of product testing and laboratory applications. This allows the user to analyze products or materials under a wide range of conditions and under predetermined atmospheric or environmental parameters. Some of the conditions that can be controlled by vacuum degassers include pressure and humidity, temperature, altitude simulation, electromagnetic radiation, microwave radiation, specific gravity, density and vapor pressure.


Manufacturing issues such as leakage and product integrity can be tested and corrected through the use of vacuum degassers. Other conditions, such as acoustic and gaseous emissions, can be controlled. Some testing processes include total mass loss, total mass flux and helium leak detection.





BWZCQ series vacuum degasser is a special-purpose device for the treatment of gas-cut drilling fluid. It is a new type one we have designed and developed by combining different sorts of degassers from home and abroad. It's applied to match various mud purification system. It is very important for returning mud gravity, stabilizing mud viscosity and reducing drilling cost. Also, at the same time it can be used as a heavy-power agitator during the operation of gas free mud.

Here is the detail of Vacuum degasser made by Xi'an BW Solids Control Co., Ltd


BWZCQ series vacuum degasser

1. Compressed structure and degassing efficiency of more than 95%.
2. Treatment on complete deck, grinding sand, hot dip galvanizing and inactivation.
3. Select Nanyang explosion-proof motor or domestic famous brand motor.
4. Electric control system adopts famous brand of China.

Vacuum degasser utilizes vacuum pump suction action, causes negative pressure zone in vacuum tank, under the action of atmospheric pressure, drilling mud through the suction pipe into the hollow shaft of rotor, and then through the window around hollow shaft jilt to the tank wall by spurting. Due to the effect of collision and separation wheel, separating drilling mud into thin layer, the invaded bubble broken and gas escape.

Oil Tank

BW Solids control manufacture mud tank and oil tank for our own drilling fluids system but also we supply mud tank with customized desgin.We are located in China iron production City-Tangshan.The price of raw material here is very low and with high quality.There are also many experienced workforce in iron machine production.They work very efficiently. 

Moreover,we control mud tank production cost well by outsourcing some processing work.So buy Oil tank and mud tank from us you will enjoy high quality but Good price.We are professional in manufacturing solids control system,so our mud tanks design are very compatible for mud circulation system using.

Vacuum Degasser

Vacuum Degasser is a special equipment for treatment of gas in drilling fluids, can get rid of various gas of invasive drilling quickly. Vacuum Degasser play a important role to return mud proportion and stabilize mud performance. It also can be used as a h-power agitator and applicable to all types ofmud recycling and cleaning system.

Features & Benefits of BW Vacuum Degasser:

1. Compressed structure and degassing efficiency of more than 95%.
2. Treatment on complete deck, grinding sand, hot dip galvanizing and inactivation.
3. Select Nanyang explosion-proof motor or domestic famous brand motor.
4. Electric control system adopts famous brand of China.

Parameters of Vacuum Degasser:




Vacuum degasser for drilling fluids solids control:

Vacuum Degasser is also called mud/Gas separator. Mud/gas separators (Degasser) is the first units of solids control equipment arranged to treat drilling mud. As such, they process all of the drilling mud from the flow line before the mud reaches the primary shale shakers. The units have no moving parts and rely on the density difference between the gas and the mud for removal. The process is simple, yet very effective for well drilling fluids processing system.

Vaccum Degasser is used to remove the small entrained gas bubbles left in the mud by the mud/gas separator. These units are positioned downstream from mud/gas separators, gumbo removal equipments (if utilized), mud cleaner and mud conditioners (if utilized), while desander and Decanting centrifuges follow in the arrangement.

Decanting Centrifuge

BWLWF series decanting centrifuge is the fourth phase solids control equipments. It is set behind the mud cleaner and desilter cleaner, using the principle of centrifugal action to separate the solid particles of 2-7μm from the drilling fluids. According to different speed we have middle speed decanting centrifuge, high speed decanting centrifuge and high speed variable frequency decanting centrifuge.



Features & Benefits of BW Decanting Centrifuge:
1. Combination the abroad and domestic oilfield site experience, invite the senior consultant to optimize structure design and continue to test.
2. Main body adopt Q235 material, core components adopt Q345 high-strength wear-resistant alloy material
3. Screw propeller made from 1CR18NI9TI material, bowl made from SS304 material, bearing adopt SKF or FAG.
4. Discharge port protected by tungsten carbon alloy ring or coating.
5. Electric elment adopt SIMENS or Schneider
6. Main frame has been grinding sand, pickling phosphating and hot dip galvanizing
7. Painting: Heavy anti-corrosion paint adopt national famous Dewei Brand.
8. Electrinic control system is from Huarong brand or Helong brand explosion-proof electronic switch.
9. Adopt Nanyang or other national famous brand explosion-proof motor

10.Reduce shocking with high strength seismic composite material.

Parameters of Decanting Centrifuge:

Oilfield Decanter Centrifuge For drilling fluids
Decanter centrifuge are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). Mechanical energy is utilized to increase the gravitational force exerted on solids that are present in the mud system.oilfield Decanting Centrifuge are able to apply over 3,000 G-forces on the liquid/solids mixture, which separates the heavier solids from the lighter solids. Additionally, high G-forces separate fine solids from liquid.
Mechanical separation of solids from the mud system through the use of a decanter centrifuge is a highly-effective means of maintaining proper mud weight and viscosity.

 When used in conjunction with other Solids control equipment, decanting centrifuge enable users to maintain the mud properties within the prescribed range as per the drilling program. Typically,oilfield decanting centrifuge is the final processing units in the arrangement of solids control equipment. Decanting centrifuge preceded by gas busters, gumbo removal equipment (if utilized),shale shakers, mud Cleaners (if utilized), Vacuum degassers and hyrdocyclones.