Drilling mud Equipment

Solids control equipment was treated as an Insurance policy against catastrophe prevention. Today, the more expensive drilling fluids require a low-drilled solids concentration. The new mud systems, being used, are expensive and these drilling fluids require lower concentration of drilling solids. Today’s environmental concerns dictate the removal of drilled solids to minimize the waste. Economics play a very important part; expensive drilling fluids can be reused if solids are removed in an efficient manner. And if the waste is minimized so is the disposal cost.

Solids control equipment was historically been justified as an Insurance policy against catastrophe prevention. Today, the more expensive drilling fluids require a low-drilled solids concentration. More and more solids control system equipped with decanter centrifuge to minimize the waste discharge.

There is usually 2 decanter centrifuge for a complete solids control mud system for drilling rigs.

1) The first centrifuge we call it barite recovery centrifuge. It is a middle speed decanter centrifuge, with G force around 700~1000, and the speed is usually around 2000rpm (2200rom for GNLW452 centrifuge). It used to remove barite from the clean drilling fluids from other solids control equipment. The recovered barite will not be discharge but turn back to the drilling rig mud system. The fluids phase from this decanter centrifuge will be collected in a tank and transfer to another decanter.

2) The other decanter centrifuge usually utilize high speed and G force around 1800~2300 (3200rpm for GNLW363 centrifuge). The centrifuge is used to separate fine solids from the low gravity solids mud.

The dual decanter centrifuge can minimize the solids discharge and lower the drilling cost.

GN can also make big bowl decanter centrifuge for slurry separation or waste management. Below is the complete GN centrifuge model. For more information, contact GN group.

Decanter centrifuge widely used in oil and gas drilling field and drilling waste management field. There are mainly three types of feed pump feeding for decanter centrifuge.

Below is the details description of the 3 type feed pump. The world top solids control and waste management manufacturer – GN Solids Control also give suggestion about how to choose suitable feed pump for your decanter centrifuge.

1) Decanter centrifuge feed pump -Screw pump

Screw pump, also named as Positive Displacement Feed Pump or Meno pump. GN Solids Control Company (China top manufacturer on mud solids control and waste management equipment) chooses from German brand Netzsch, fluid touch material stainless steel. Other famous brand, like Derrick, Swaco, Brandt, also choose screw pump feed for the decanter centrifuge.

Screw pump is reliable on performance, and better on materiall, it is mainly used for waste management system. Screw pump usually mounted on the tank slope. It will occupy part of the tank usable capacity. No need remove during shipment.

2) Decanter centrifuge feed pump –Submersible slurry pump

Centrifuge feed pump submersible slurry pump mainly used for solids control system or no dig mud system, like barite recovery, HDD system, CBM drilling, micro tunneling, etc… The pump can be mounted on the tank top, no need to occupy tank space, it can save tank capacity. The pump should be put into fluids for suction.

Main advantages of the pump is that, it can allow solids side below 7~8mm. It is easy for maintenance. But as submersible slurry pump mounted on tank top, usually it is over 1 m higher than the tank top, need to be removed during shipment.

3) Decanter centrifuge feed pump –centrifugal pump (GNSB series pump)

Centrifugal pump also be used for decanter centrifuge in some cases. It is not as common as Screw pump or Submersible slurry pump. As the same with screw pump, it is usually mounted on tank slope. It will occupy part of the tank usable capacity. No need remove during shipment.

If you still have wondering on the 3 types of feed pump for decanter centrifuge, you can contact GN engineer group for help. You can contact their China base or Houston base, either one available.

Drill waste management and solids control is important for drilling rigs. It is used to recovery drilling mud, reduce drilling cost and remove discharge.

Functions of drill mud solids control

Solids control, it is the process to treat the drilling mud/fluids from drilling rig, to remove the solids and recovery usable drilling mud for drilling activity.

Equipment for drill mud solids control

It is usually said 4-step solids control and 5-step process.

4-step solids control means the treatment of shale shaker (1#), desander (2#), desilter (3#), and decanter centrifuge (4#).

The above 4-step, together with vacuum degasser, combined of the complete 5-step process.

Vacuum degasser strictly said, it is not solids control equipment, it is used after shale shaker but before mud cleaner. It is used to remove gas from drilling mud , to avoid un-expected gas make damage to drilling mud.

Functions of drill waste management

Drill / Drilling waste management is usually used after solids control equipment. It is the process to treat drilling / drill cuttings from solids control equipment, like the solids discharge from shale shaker, mud cleaner. 

Main equipment for drill waste management

High G shale shaker, vertical cutting dryer, screw conveyor, centrifuge, dewatering unit… They mainly used for drilling waste management. Customer choose suitable equipment per jobsite situations. 

Who can offer solids control and drill waste management

GN Solids Control is China made but service in U.S.A company. GN can make complete line solidscontrol equipment, and drill waste management equipment, as well as different models of replacement shaker screen (for Derrick, Swaco, Brandt…)  

 

GN Solids Control Co., Ltd is manufactures complete line of mud recycling and mixing system for oil & gas drilling, for trenchless, waster well drilling, mining, piling and micro tunneling industries. GN can offer mud recycling system with capacity vary from 150 GPM to 1000 GPM (50~240 m³ / hour).

GND series mud recycling system

GND series mud recycling unit is simplified recycling system, usually, also been refer as desander machine, desander plant for piling industry.

GND series mud system for piling industry is mainly complete with Vermeer, Ditch Witch, German T & T. GND series mud system have widely used in Australia, America, Middle east and South Asia, like Burma, Pakistan, Malaysia, Thailand, Vietnam, Oman, UAE, Saudi Arab…

GND-120 mud recycling system for piling

Recently, 2 sets GND-120 piling mud recycling system have been shipped to South Asia market. The total system is compact footprint and easy for movement. Customers only need to fall down the control panel (Explosion proof), and then the total system can be shipped as a package.

Parameters of GND-120 mud recycling system for piling

Total capacity: 120m³/h  

System dimension: 2.1×1.5×2.7m

Total weight: 2700kg                                                                                                                 

Total power: 38.5kw

Separation point: 50 microns

Mud cleaner: GNZJ752D-1S (Double deck shale shaker GNZS752D)

All GN mud recycling have been test with water before delivery. Or test with barite per customers’ special requirement.

GN can also offer customized system. For more information of GN recycling system. You can contact GN freely. Or visit GN hear office in China Beijing, Brach office in America or Australia.

Double deck shale shaker and High G shale shaker is widely used for oil and gas drilling rigs site.They can be used for both mud solids control or drilling cuttings waste management.

They are both linear motion shale shaker. Many customer do not know the difference of Double deck shale shaker and High G shale shaker. Below is the explanation from world top solids control and waste management equipment manufacturer – GN Solids Control. Let GN tell you the difference of the 2 types of shale shaker and choose the suitable model for your drilling rig.

Double deck shale shaker, linear motion: GNZS703D

GNZS703D is the typical double deck shale shaker. It utilized 2 each shaker screen for top deck and 3 each shaker screens for bottom deck.

Advantages of GNZS703D double deck shale shaker

1). For the same API size and the same area bottom shaker screen. double deck shale shaker can treat a bigger capacity. The wide-meshed shaker screen on top deck can separate most big size solids before the mud enter into the bottom deck. It greatly reduce the load of bottom shaker screen.

2). For the same API size and the same screen area shaker screen. double deck shale shaker can separate the drilling mud or drilling cuttings more dryer. As there are 2 times shale shaker separation.

Disadvantage of double deck shale shaker

The double deck shale shaker have advantages of bigger advantage and dryer separation result, but it has some difficult to change shaker screen. And the cost of replacement shaker screen also higher, as there are 5 each screen for a shale shaker.

High G shale shaker, linear motion: GNZS594

GNZS594 is a high G shale shaker model, with linear motion. It uses 4 panel shaker screen. And the shaker screen interchangeable with Swaco Mongoose shale shaker, composite material. It is single deck, relative easy to change shaker screen compared with double deck shale shaker.

Conclusion

So the user can choose shaker type per your drilling rig conditions and per your applications (for solids control or for waste management). If you have a higher solids content, or want bigger capacity, and take more time for screen changing is not problem, you can choose double deck shale shaker. If you prefer fast screen changing, high G shale shaker single deck is better.

Functions of solids control equipment- shale shaker

Solids Control shale shaker is the first stage separation equipment for oilfield drilling mud cleaning system. It utilizes vibrating motor to generate vibrating strength. The vibrating strength drive the drilling mud going through the shale shaker. When the drilling mud go through the shaker screen, clean mud will filter into mud tank. Not allowable bigger solids will pass the screen surface and been discharged.

Types of solids control equipment – shale shaker

Per different motion design. There are mainly 2 types of shale shaker:

1) Linear motion shale shaker. It is the most common shaker model for oil and gas drilling solids control system

2) Balanced Elliptical motion shale shaker. It is not recommended for oil and gas drilling, as the flow capacity is big. The BEM shaker, while mud flow not equal, the motion of the shaker will be changed. And performance not good. Mostly, professional users prefer linear motion for a wide use.

Separation size of solids control equipment – shale shaker

The separation size of the shale shaker equipment depends on shaker screen size. We call it API size or mesh size. The API defers from API 20 to API 325 per API RP13 standard.

Through changing different API size shaker screen, the solids control shale shaker can separate solids size min. above 40 microns (at API 325 shaker screen)

If you do not need to separate so fine solids, you can choose more fine shaker screen, Like 800 microns @ API 20.

The common screen API size for solids control shale shaker is API60, API80, API100, API140,API160. Customer can choose the suitable size per drilling mud condition.

Features & Benefits of GN solids control equipment- shale shaker

1) Heat treatment on complete shaker deck.
2) Vibrating Motor: Italy OLI brand, IEC Ex and ATEX Option available.
3) Electrical components: SIEMENS, Schneider Brand.
4) Shale Shaker Deck Bottom Screen Support Material Stainless Steel
5) Shaker Basket Material: Q345 High Strength alloy material.

6) G force of GN shale shaker can up to 7.5G. And adjustable. It can separate the drilling fluids more dryer.

7) Deck Adjustment (AWD): -1°~+5°

AWD Angle Adjustment System for GN solids control shale shaker

GN AWD Angle Adjustment System for solids control shale shaker is the patent design. It is synchronized change for both sides. You can adjust from any side, the angle change is the same for both side.

GN have a options for AWD Angle Adjustment: Left side of the shaker is a small motor for automatic control. And there are control for the small motor on shale shaker control panel. Right side of the shaker utilize tools for angle adjustment.  GN will offer tools together with the shaker. Customer can choose any way to change the angle.

Shale shaker can also combined with desander or desilter assembly and used as mud cleaner. For more information of GN solids control shale shaker, you can visit GN website or contact GN group.

General explanation of Drilling fluids liquid mud plant

All drilling operation will require a blend of chemicals which are mixed drilling fluids commonly known as drilling mud, solids control and the circulating equipment are critical and interrelated part of the drilling operations. Drilling mud (drilling fluids) consists of a continuous liquid phase to which various chemicals and solids have been added to modify the operational properties.

Functions of Drilling fluids from liquid mud plant

The drilling mud has a host of critical functions, including controlling formation pressure, removing cuttings from the well sealing permeable formation and marinating well bore stability until the casing is cemented in the well bore and cooling and lubricating the drill bit.

Meanwhile solids control equipment separates drill solids from the drilling mud, thereby allowing it to be re-circulated down the drill pipe. Depending on the geological formation, environmental, application and well objectives, the drilling mud system are either water based or emulsion based.

The importance of liquid mud plant for drilling fluids

For environmental reasons and restriction especially in land drilling operation, the drilling mud and cutting must be handled in an environmental safe condition. Therefore instead of storing and mixing the chemicals at individual rig site, majority of the oil companies are now adapting to have a central Liquid Mud plant for drilling fluids, where the storage, handling and mixing and liquid storage are kept.

From this centre, the liquid drilling mud is distributed by road tanker to the various rig sites. After the drilling operation the road tankers will transport the used drilling mud back to the center for treatment, reprocessing and storage. The waste water and solids are transported to the Waste Management facilities for treatment and disposal.

Supplier of Drilling fluids liquid mud plant

GN Solids Control can offer complete liquid mud plant, with tanks, drilling fluids mixing system, with decanter centrifuge and varioud feeding pumps. GN Solids Control is an international manufaturer on solids control equipment, like tanks, shale shaker, mud cleaner, shaker screen ,mud agitator, mud gun, decanter centrifuge, and waste management equipment, like big bowl decanter centrifuge, vertical cuttings dryer, screw conveyor… GN can make customized liquid mud plant for different area and market, like U.S, Europe, Canada, Romania, Russia, Kazakstan, Ukran, Pakistan, UAE, Oman, Libya, Egypt, Iraq, Iran, Yemen, Qatar, South Africa, Sudan, Morocco, Nigeria, Algeria, Tunisia, Brazil, Venezuela, Argentina, Australia,

Searching for a centrifuge that can handle solid control processes, drill mud clarification, spent water based mud clarification, barite recovery, etc…? Want the centrifuge good price, top quality and very short leading time? It is better brand new? Here is a right chance for you.

World top manufacturer – GN Solids Control have a centrifuge model GNLW454G in stock for sale. As much as 30% discount available. Amazing? Attractive? Come on. Let’s check more details.

Parameter of the for sale centrifuge:

Model: GNLW454G

Bowl Diameter: 450mm

Bowl Length: 1780mm

Beach Angle: 8°

Bowl Speed: 2500RPM

Max Capacity: 80 m3/h

Normal capacity: 60 m3/h

Separation Point: 2~5 microns

G-Force: 1573@2500RPM

Main Drive: 45Kw-4p (EXdⅡBT4, IP 65)

Back Drive: 11Kw-4p (EXdⅡBT4, IP 65)

Electric spec: 460V/60hz or 380V/50HZ

Main Body Material: SS316

Screw Protection: Tungsten alloy tile

Solids Discharge Port: High-Chromium Alloy Cr30

Main functions of the centrifuge

1) Handle solid control processes

2) Drill mud clarification

3) Spent water based mud clarification

4) Barite recovery, etc

Why so much big discount available? Brand new or used centrifuge?

It is exactly brand new centrifuge. With top material choosing, SS316L for centrifuge, SKF original bearing; SOG oil seal; EXdⅡBT4, IP 65 standard for control panel.

In order to focus on common size centrifuge GNLW363 and big bowl centrifuge GNLW553, shorten the leading time of the 2 most hot sale model, the manufacturing GN Solids Control decided to stop the medium model GNLW454, and good price for sale the storage.

The model has been stopped making. How customer get spare parts and after sales service?

It is absolutely no need worry about spare parts and after sales service. GN can offer spare parts at most 30 days after customer order. After sales service and guarantee exactly the same with other model.

There are many customer have interest on the for sale centrifuge, the chance should belongs to people come first. No hesitate, contact GN now.

GNLW454 is the medium size centrifuge. GN hot sale model is common size GNLW363, it is equivalent to Derrick DE-1000 and Swaco 518. For big bowl, GN can offer GNLW553. You can contact GN group or more information of GN Centrifuge.

 

750hp workover drilling rig also called ZJ30 drilling rig. The world top solids control manufacturer GN Solids Control have sent a complete 750hp workover rig mud cleaning system to a drilling company in Oman.

It is a complete mud cleaning system with all the 4 stage solids control and 5 stage treatment. A poor boy degasser (mud gas separator) also included in case of unexpected gas or well blowout) The mud cleaning system offered by GN can be used for both workover and drilling.

Equipment included in the 750hp workover rig mud cleaning system:

1) Shale shaker, 2 each, GNZS594 (with the same composite screen with Swaco Mongoose shaker)

2) Vacuum degasser: GNZCQ270

3) Desander, 1 each, GNZJ752-2S

4) Desilter, 1 each, GNZJ752-12N

5) Decanter centrifuge GNLW363G

6) There were four mud tanks that were divided into different compartment for trip tank, sand trap compartment, Centrifuge tank compartment and mixing tank compartment. Optimal design for the tank inner structure ensures the sufficient effective mud storage capacity and easy to layout the pipeline and electric wire cables.

And furthermore, the mud cleaning system also equiped 1 each poor boy degasser (mud gas separator) and 1 set jet mud mixer.

In this 750hp workover rig drilling mud cleaning system, we designed both mud mixing hopper system and polymer mud chemicals shearing system where the operators could adding chemicals to keep the mud specific gravity. The multiple mixing pump can circulate the active mud in all tank compartments from the Centrifuge compartment.

If you want more information of drilling mud cleaning system of the 750hp workover rig mud system in Oman, contact GN group freely.

There are mainly 3 types protection for solids separation centrifuge propeller screw. Many customer do not know the difference of them and wondering about how to choose the suitable one for its centrifuge. Below is the elaborate for the difference of the 3 screw protection design.

1) Tungsten carbide hard surface for screw protection: It is the most common type in China. Nearly all other companies make this type, besides GN Solids Control Co., Ltd. It is easy for process, and cost lower. But the height of the welded Tungsten carbide on the screw surface is very thin, only around 1mm. This type of centrifuge is cheaper, but not good at anti-friction and anti-abrasive. If the solids content high, after half year or 1 year, not more than 2-year time, the Tungsten carbide hard surface will be worn out and the centrifuge will lose balance. The users need to open the centrifuge bowl, welding again to maintenance it and make dynamic balance again. It requests the operator with a higher specialty, and more cost on maintenance.

2) Interchangeable ceramic tiles for screw protection: It is interchangeable small pieces, with exact same weight and dimension. It is strong. And mostly, it has a higher function on anti-abrasive under heavy Acid / Soda corrosion, even better than Tungsten Alloy Tile. Therefore it is mostly used for mining industry. Its cost higher than Tungsten carbide hard surface. The height of the each ceramic tile is reach to 4mm, much more anti-friction than Tungsten carbide hard surface.

Users only need to replace the worn out piece with new one, new need to make dynamic balance. Easy for maintenance.

3) Tungsten Alloy Tile for screw protection: It is the most perfect one and most anti-friction. It is interchangeable small pieces, completely made from each piece with exactly the same weight and dimension. It is the most expensive type, as the material is expensive and a higher request on machining Précising. The height of the each ceramic tile reaches to 4mm, much more anti-friction than Tungsten carbide hard surface, and even strong than ceramic tiles. It is mainly used for barite recovry, fine solids separation and drilling waste managment field.

Users only need to replace the worn out piece with new one, new need to make dynamic balance. Easy for maintenance.

As world famous manufacturer on solids control and waste management centrifuge and vertical cuttings dryer, GN Solids Control offer centrifuges with ceramic tile or tungsten alloy tile. Tungsten carbide hard surface do not recommended. The users can choose ceramic tile or tungsten alloy tile according to its real condition and its budget.