GN OTC booth area is 108 ㎡（9x12m).

GN has taken many advanced equipments to the show, all these equipments are got wide attention even among our competitors. Nearly all big players in solids control field visit GN booth, like Derrick, MI-Swaco, NOV Brandt, etc…

GN has more than 50 sets decanter centrifuge working in Latin America and more than 10 sets working in USA. Many of GN existing customers in USA and Latin America has visit GN booth and talked more details about further cooperation.

Many visitors from India, Nigeria, Russia also come to the show, and compared GN equipments with USA Brands.

What products GN Showed on OTC 2012:

1) Double Deck Shale Shaker

2) Mini 752 Cleaner (Desander & Desilter)

3) Shale Shaker Screens

4) Centrifuge Screw Conveyor

worldwide top solids control brand is a post from: Drilling Mud Decanter Centrifuge

Questions to size up your mud system:

• What type of drilling rig you have? Oil drilling,HDD,or CBM etc.
• Size and model of your drilling rig?
• The GPM of your mud pump capacity?
• The Tank volume you will need?And tank dimensions you like?
• The configuration of the solids control equipments you would like to put for your mud system? Shale shakers,desander,desilter,vacuum degasser,decanter centrifuge,poor boy degassers,pumps etc.
• Layout requirements for the mud system you require,L Shape,inline shap,ect.
  

  GN Mud System

Factors above are important to know so that you use a recycler that is adequate enough to clean the mud and protect the components on the rig, pump and cleaner. Once you have decided on the size of the mud system you need, there is more information that you should be armed with:
Gallons per Minute: When deciding the size of a mud system that you will need, it is best to base it on 1 ½ to two times the amount you are pumping. Example: If you are pumping 250 gals, you would want to go with a 500-gpm unit.

Trailer or Skid mounted mud system: Depending on your requirements, mud systems can be trailer mounted or skid mounted. Trailer-mounted units require dedicated trailer (built to unit). Skid-mounted unit can be removed from trailer which releases the trailer for other duties.Another option is that you can get the hydraulic jack up mud system.

Screen surface: The more screen surface area you have means more volume that you can clean.

Screen selection: The mesh size of screens is measured by the number of holes per square inch on the screen. Different mesh sizes control the size of the cuttings that you remove. The same mesh size will not work in all drilling conditions. Sizes will vary depending on the size of the cuttings and the type of formations you are cleaning.

Shale Shakers: Shale Shaker is the most important equipment for mud system.There are three types of shakers (orbital, elliptical and linear). Orbital is a circular motion and elliptical isn’t perfectly circular — it’s an ellipse or oval. Linear has vibration that is induced by a pair of eccentric (or eccentrically weighted) shafts turning in opposite directions. This type of arrangement allows for the development of straight line or linear motion that can also be produced in a positive (uphill) incline.
While each shaker has a specific place that it will shine like the price, the ability to process heavy clays and rock or fines and ultra-fines, our overall preference is the linear.

Desander Desilter Cones: Depending on the size of the mud system you choose, the cone size will either be 4, 5, 10 or 12 in. Each size cone has a micron cut point, which is the size of the smallest particle that the cone can pull out. The 4- and 5-in. cones have a micron cut of 20 microns and the 10- and 12-in. have a 74 micron cut.
Hydrocyclone cones process the liquid at a rate of 50 gpm with the 4-in. cones, 80 gpm with the 5-in. and 500 gpm with the 10- or 12-in. cones.

Cones need pressure to work properly. A normal operating pressure range for 4- and 5-in. cones is 30 to 40 psi, 10- and 12-in. cones is 23 to 35 psi.

Trash Pump for feeding mud system: Do you have a trash pump for your recycler? Trash pumps are designed to pump large amounts of water that contains hard and soft solids. Trash pumps are capable of processing materials that would clog other centrifugal pumps and can move hundreds or even thousands of gallons per minute.

Decanter Centrifuge for mud system:The decanter centrifuge in mud system is for separation ultra-fine solids,and recovery for barite and.It is an expensive equipments in mud system,but it can give you much better performance.

Vacuum Degasser:The vacuum degasser is usually used in mud system for oil drilling rig bigger then 650 Hp.

The above is about how to select solids control equipments for mud system,besides.you’ll need to know how to select the mud tanks,this depends on the capacity you need,and the transportation dimension limit,as well as the layout for mounting the solids control equipments for the mud system.

Anyway,you are always welcome to talk with GN Solids Control specialist about how to select a mud system for your drilling rig,no matter for oil drilling,horizontal directional drilling,or CBM drilling,even for diamond drilling.GN have all the major equipments for drilling mud system and drilling waste management.

How to select a mud system for drilling rig? is a post from: Drilling Mud Decanter Centrifuge

As the developing for environment regulations around the world,the drilling waste management are becoming more and more important.Besides the complete line equipments for mud solids control like shale shaker,desander desilter,centrifuges,pumps etc.GN now have the following drilling waste management equipments available.

Vertical Cutting Dryer for drilling waste management

Up to 2011,GN Solids Control is the only one API & ISO certified manufacturer for the vertical cutting dryer in China. GN manufacture complete equipments for Solids Control and most equipments for drilling waste management.

GN Vertical Cutting Dryer

The GN Vertical Cutting Dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. A stainless steel screen bowl traps “wet” solids and accelerates them up 900RPM,with G force up to 420,which meet all the major applications for drilling waste management. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for proper operation. GN cutting dryer has been done strict balance testing for all major rotary components to minimize vibration & noisy

Drilling Waste Management HI-G Dryer

he GN Hi-G Dryer Shaker is with long shaker deck big capacity which is used for waste management to treat the drilling cuttings from the primary solids control equipments like shale shaker, desander desitler to dry the solids for transportation, and make the fluids easier for further drilling waste management.

GN also have other drilling waste management equipments like the dewatering centrifuge,screw pumps,and screw converyers for transport drilling cuttings.

GN drilling waste management equipment is a post from: Drilling Mud Decanter Centrifuge

Features & Benefits of Atmospheric Degasser

The GN Atmospheric/Centrifugal Degasser is a special in-tank alternative to the standard GNCQ series Vacuum Type Degasser. The GNAD Series Degasser is a self contained unit without needing for centrifugal pump to feed drilling mud.

The GNAD Series Atmospheric/Centrifugal Degasser retained gas from drilling muds. Atmospheric degassers process mud by accelerating fluid through a submersible pump impeller and impinging the fluid on stationary baffles to maximize surface area and thus enable gasses to escape to the atmosphere.

GN Atmospheric Degasser

Features and Benefits of Vacuum Degasser

GNCQ Series Vacuum Degassers that are able to service the needs of any application .It is usually fixed after the shakers. Each degasser effectively and efficiently removes gases from gas-cut mud, thus ensuring that the proper mud weight is pumped down hole. In doing so, the degassers are able to aid in the prevention of potential blowouts. Unlike the traditional vacuum degasser, GNCQ vacuum degasser is a self-contained unit. The gas-cut mud is drawn into the degasser by a vacuum created by a regenerative vacuum without needing centrifugal pump .Moreover, GN degasser can act as a big agitator for the drilling mud, which helps the treatment for desander and desilter. GN also have Atmospheric/Centrifugal Degasser available as an alternative to the standard vacuum type degasser.

For more information of GN Atmospheric Degasser,you may contact sales@gnsolidscontrol.com

GN Atmospheric Degasser is a post from: Drilling Mud Decanter Centrifuge

Screw Pump Centrifuge

The single screw pump is an ideal pump for feeding to decanter centrifuge without shearing or agitating the drilling mud. The main parts are screw shaft (rotor) and screw shaft bushing (stator). Because of the special geometry shape of the two parts, they form pressurize capacity separately. The fluids flow along with the shaft, inner flow speed is slow, capacity remains, pressure is steady, so it will not generate vortex and agitating. The shaft of the pump is made from Stainless steel

About GN Screw Pump

GN  Screw pump is available for option with complete stainless steel body,GN Screw pump  can drive by coupler, or adjust the speed by using variable speed motor,this is specially suitable for feeding the variable speed decanter centrifuge, Triangle V-belt, gear box, etc G series screw pump is with less accessories, compact structure, small volume, easy maintenance, rotor and stator are wear parts of this pump, it is convenient to replace. The stator is made of elastomeric material, so screw pump  has particular advantages than other pump to transfer the fluids of high viscosity and hard suspended particles included.

Screw Pump for centrifuge is a post from: Drilling Mud Decanter Centrifuge

vertical cutting dryer

Drilled cuttings with associated fluid from the rig solids-control equipment have been passed over a second drying shaker(usually High G shaker) for a number of years. The recovery of oil-based drilling fluid coupled with a 10-25% reduction in disposal volume is usually easily justified and has become standard procedure in areas where so-called pitless drilling or closed loop systems are the norm.

Generally, the secondary drying shaker is a four-panel screening (GNZS634 HI-G shale shaker) device running at 7.0-7.5g’s at the screen surface. Drilled cuttings from a drying shaker typically test between 8 and 12% base oil (NAF) by wet weight. This retention-on cuttings (ROC) figure is significantly higher than the current minimum allowed for offshore discharge in the United States and, increasingly, elsewhere around the world.

Accordingly, there has been increased interest in lowering the ROC figure by the use of different types of drying equipment.

GNCD930 Vertical Cutting Dryer is the latest design from World top solids control manufacturer – GN Solids Control. GN Solids Control is the first Chinese manufacturer for vertical cutting dryer. And also, GN Solids Control is the among the few companies who can complete drilling fluids solution with drilling waste management system.

As the first API certificated solids Control manufacturer, GN Solids Control will take a complete 500GPM hydraulic jack up mud system complete with drilling waste management for the world largest oil show- CIPPE in Beijing.

The latest design vertical cutting dryer will be took on the show. You can come and check GN equipments on GN booth.

Vertical Cutting Dryer for sale is a post from: Drilling Mud Decanter Centrifuge

Vertical Cutting Dryer waste management

Where can you see the GN Vertical Cutting Dryer?

GN will take the mud cleaning system and also the vertical cutting dryer completed with decanting centrifuge to the world’s largest petroleum show in Beijing,China from 19th,March,2012 to 21,March,2012.

http://www.gnsolidscontrol.com/drilling-fluids/2012-cippe-gn-solids-control-booth

Working Principle of the the Vertical Cutting Dryer?

Vertical cutting dryer use centrifugal force generated by mechanical rotation to separate solid and liquid. The drilling cutting entered into the space between the sieve basket and the scraper, through the feeding inlet and the fabric cone, under the centrifugal force, the drilling fluids flow into catchment tank along the above cover through the material layer and sieves. Then the fluids is discharged from the outlet pipe in both side, the solids is remained in the basket. Because of the speed difference between the screw scraper and sieve basket, the screw scraper cut the solids from sieve basket, then push them to the bottom of sieve basket, so the dehydrated solids are discharged into the collecting funnel continuously.The liquid phased will be further treated by the Decanter centrifuge which GN also have it availalbe.

Vertical cutting dryer is composed of the working part, the transmission part, the lubricating system and the protecting system.

GN Vertical Cutting dryer for waste management is a post from: Drilling Mud Decanter Centrifuge

Mud Processing Circle

Any change made to one of these affects the other two, and those in turn affect all three, and so on. To optimize a drilling operation, it is important to understand how the solids affect bulk mud properties, particularly rheology, hole cleaning, filtration, drilling rate (rate of penetration [ROP]), along with surface properties such as shale inhibition potential, lubricity, and wetting characteristics.

Drilling Fluid Properties is a post from: Drilling Mud Decanter Centrifuge

Drilled solids, consisting of rock and low-yielding clays, are incorporated into the mud continuously while drilling. To a limited extent, they can be tolerated and may even be beneficial. Dispersion of clay-bearing drilled solids creates highly charged colloidal particles (<2 mm) that generate significant viscosity, particularly at low shear rates, which aids in suspension of all solids. If the clays are sodium montmorillonite, the solids will also form thin filter cakes and control filtration (loss of liquid phase) into the drilled formation(GN Solids Control). Above a concentration of a few weight percent, dispersed drilled solids can generate excessive low-shear-rate and high-shear-rate viscosities, greatly reduced drilling rates, and excessively thick filter cakes. 

Fig. 1 Effect of Mud Weight and MBT on Viscosity of Acceptable WBM

As shown in Figure 1, increasing the mud density from 10 lb/gal to 18 lb/gal requires that the MBT be reduced by half. Different mud densities require different strategies to maintain the concentration of drilled solids within an acceptable range. Whereas low mud densities may require only mud dilution in combination with a simple mechanical separator, high mud densities may require a more complex strategy: (a) chemical treatment to limit dispersion of the drilled solids (e.g., use of a shale inhibitor or deflocculant like lignosulfonate), (b) more frequent dilution of the drilling fluid with base fluid, and (c) more complex solidsremoval equipment, such as mud cleaners and centrifuges.

Fig. 2 Drilling Fluid Circulating System

In either case, solids removal is one of the most important aspects of mud system control, since it has a direct bearing on drilling efficiency and represents an opportunity to reduce overall drilling costs. A diagram of a typical mud circulating system, including various solids-control devices, is shown in Figure 2. While some dilution with fresh treated mud is necessary and even desirable, sole reliance on dilution to control buildup of drilled solids in the mud is very costly.

 Solids removal on the rig is accomplished by one or more of the following techniques:

. Screening: Shale shakers, gumbo removal devices

. Hydrocycloning: Desanders, desilters

. Centrifugation: Scalping and decanting centrifuges

. Gravitational settling: Sumps, dewatering units

Drilling Fluid System is a post from: Drilling Mud Decanter Centrifuge

2000gpm dredger slurry separation system is a post from: Drilling Mud Decanter Centrifuge