Water based drilling cuttings treatment

GN designed vertical G dryer waste management system can be used as both water and oil based drilling cuttings, and also the area test outcome is demonstrated effective. The conventional vertical G dryer drilling waste management system including: verti-G dryer GNCD930D-VFD, decanter centrifuge GNLW363CG-VFD, Nemo pump GNG30-075 for feeding the centrifuge, Nemo pump GNG10A-040 for flushing the VFD decanter centrifuge and vertical cuttings dryer, oilfield 3-runner design skid, V type liquids collection tank and some spare parts. This kind tank is for easy tank bottom cleaning and preventing accumulation of solids to the tank bottom.

We've specifically designed drilling waste management system for water drilling cuttings, the advantage to try to get this technique is:

1 Use Hi-G dryer to rather than Vertical G dryer, decreasing cost and less the facility consumption

2 decreasing the eliminating pump for that vertical G dryer

3 G-force of Hi-G dryer can achieve 8.0G max, with 4-panel shaker screen and a pair of 0.73m2 large screen position for better separation. After treated by hi-G dryer, the liquid is feeding to decanter centrifuge directly.

But in comparison with Hi-G dryer, verti-G dryer treated the cuttings much drier, the solids can be taken off directly by truck, however the solids separated by Hi-G dryer still remain around 40% humidity.

In water based drilling mud treatment system, the centrifuge is generally placed on the greatest telescopic frame for much better solids discharge. However the shale shaker might be using it the low stand.

But when for oil based drilling cuttings, Vertical G dryer management system is the greatest option, we've utilized it in lots of rig sites to check its performance, its demonstrated good based on our client’s feedback.

To check on GN vertical cuttings dryer performance within the rig site, please look into the video from GN website in the video page.

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European Customer visited GN factory to check the Solids Control System before Delivery

GN solids control is experienced in solids control system for gas and oil drilling. Every year, GN designs and manufactures many solids control system, for example 4 set solids control system for COSL, and one set for a European customer. Lately, the European customer visited GN factory to check the solids control system for gas and oil drilling. This product is almost finished, and prepared for delivery.

Within this solids control system, you will find 7 tanks including one small trip tank and small pill tank, and five large tanks: the first is shale shaker tank in which the first stage and 2nd&3rd stage mud dealing equipment are mounted and then it's active tank in which the 4th stage mud dealing devices are installed. And then it's shear tank where mixing hoppers with shear pump are mounted, and then it's mixing tank where two mixing hopper and 2 centrifugal pumps are mounted, the 2 pump connected in parallel. Regarding towards the mud dealing equipment, the very first stage is shale shaker which separates large solids out, normally over 100 microns the 2nd & 3rd stage devices are mud cleaner with desander cyclones to get rid of contaminants over 40 microns out, and desilter cyclones to get rid of contaminants over 20 microns out. Then towards the 4th mud dealing equipment，there are 2 sets of decanter centrifuge, the first is middle speed that will remove solids form 5 microns to 7 microns out the second centrifuge is high-speed decanter centrifuge that will separate ultra-fine solids out normally from 2 microns to five microns.  After processed, the mud is going to be clean enough to become used again. As needed, it will likely be sheared or included the 3rd and 4th tank.

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GNMS-1000D Slurry Separation System for TBM and Piling

Not just for gas and oil drillings, which must require a well performance solids control system of mud separation system, but additionally, for other drillings, like horizontal directional drilling, water well drilling, they need mud recycling systems to increase the efficiency and also to cut the cost for drilling. For piling and TBMs, which projects are closer to the surface of the earth, a slurry separation plant or product is very necessary.

Unlike the gas and oil solids control systems and Horizontal directional drilling mud cleaning systems that are always divided per dealing with capacity by GPMs, the TBM and piling slurry separation systems are split into cubic meters each hour. Included in this, typically the most popular and customary capabilities are 240 cubic meters each hour and 120 cubic meters each hour. Lately, GN Solids Control has offered to Asia market and Australia market such slurry separation systems.

This 240 cubic meter slurry separation product is coupled with following tools and components:

GNZY705E-Y2S desander mud cleaner. The low deck is as the shale shaker, with equally coarse screens, as suggested mesh number 25. Top of the deck may be the under shaker for that desander cones, with mesh number 60. Around the lower deck, you will find 3 bits of screens; during top of the deck you will find 2 bits of screens. The Two desander cones are constructed with top quality PU for an extended service existence.

Feeding pump for that desander cones, made the decision through the capacity, there's always outfitted a 55kw centrifugal pump, in some instances, to be able to cut the energy consumption, we're able to also employ a submersible slurry pump for alternative, with 45KW energy consumption.

There is a tank underneath the equipment, with compact design. After getting rid of the desander cones, this slurry separation system might be shipped inside a 20ft container.

This above pointed out product is economic configuration of the capacity. For same capacity systems, GN also offers greater configuration with mixing system, mud agitators and mud guns. Clients could choose appropriate designs per jobsite condition.

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Cleaning cycle of drilling fluid

Concept: The drilling fluid cleaning cycle is to remove the harmful solid debris, reserve the clean drilling fluid to meet the demand of drilling fluid spec under the drilling process. Drilling fluid cleaning system is the term of all drilling fluid solids control equipments used in the oil drilling.

Function: To prevent the oil well from clogging, breaking, and decrease the drilling torque and friction resistance, reduce the pressure fluctuations of the hollow suction, increase the drilling speed, extend the drilling bit life, and reduce wear and tear of the equipments. Methods: The common methods are mixture-thin methods, swap methods, machine methods and additive-chemical methods. Use different separation function machinery is  machine method is by using screening, centrifugal separation and gravity separation to separate the solid phase according to the different size and density, therefore, to control the solid phase in the drilling fluid.

1 The technical process of the drilling fluid cleaning system and the combination of the fluid cleaning equipment.

The technical process of complete group of drilling fluid cleaning system should meet the specification of five level solid phase control (screening, degassing, desanding, desilting, centrifuge) and the provoke the drilling fluid. The merger of each solids control equipment is very important, the through out of one to five level of mud cleaning equipment should each corresponding, and the spacing of the proper distance were is appropriate.  To have certain overlap during the cleaning process, make the smaller particles of the processing incomplete in the up one had been disposed in the next solids control equipment.

2 Drilling fluid cleaning cycles

The mud back from the opening of well through the pipeline and conveyed the drilling fluid to the shale shaker. The first phase of cleaning completed by shale shaker, then entered the mud tank, the drilling fluid flowed from the mud tank through the tank slot into the desander and desilter (if detect the exits of gas, vacuum degasser will process to remove the gas) the fluid after processing of the centrifugal steps and through the tank slot enters the inhalation cabin.  The cleaned fluid then will reuse for lubricate and cooling the drill bit. 

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GN Decanter Centrifuge’s description

Because GN is the first solids control company that has API licensed, GN solids control extinguishes itself by unique and practical design, top quality materials and complex process. Using these three advantages, GN Solids Control likes the biggest worldwide market among China’s solids control companies. GN has released to morn 60 nations, and it has developed partners around Australia, South America, and Middle East, also established the foremost and greatest USA branch. Every year, GN released about 150 teams of decanter centrifuges.

GN decanter centrifuge is popular and broadly utilized in gas and oil drilling industry. GN designed max speed is 3900rpm. While normally, 3200rpm is sufficient for low weight solids (ultra-fine) separation, 2500rpm is sufficient for top weight solids, 2000rpm for barite recovery. GN has fixed speed and varied speed for options. For fixed speed, different pulleys could be adopted to alter the decanter’s speed to match to various working stations. While if varied speed decanter centrifuge is selected, it will likely be easier to alter the rate of decanter based on different working conditions. Also, GN decanter centrifuge is outfitted with detachable legs meaning the decanter centrifuge may be used on solids control mud tank or even the telescopic skid. For that round and conical portion of the bowl, GN selects Duplex Stainless 2205 material and made by centrifugal cast, leading a much better and much more stable balance while working.

The reason why you choose GN's decanter centrifuge, you're going to get an acceptable and obvious answer.

First, GN may be the first API licensed solids control company in China, also licensed by: Europe DNV CE, HSE, ISO9001, and Russia TP&TC.

Then, GN's decanter centrifuge switches into many brand new designs. For instance, tungsten carbide tiles are fixed around the screw to safeguard it from put on, and also the tiles are simpler to become changed.

Last, GN's decanter centrifuge switches into probably the most carefully selected materials, for example SS2205 material for bowl.

Certainly, decanter centrifuge will probably be your perfect choice.

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GN Solids Control Abroad Market Recent Order

GN Solids Control is top China manufacturer for solids control equipment & drilling cuttings management equipment. Decanter Centrifuge and Vertical cuttings dryer is GN advantage equipment aside from this, we have large sales amount on traditional solids control equipment.

1) GN mud cleaner for India drilling company

Lately, an India customer bought 2 sets of mud cleaner (GNZJ703E-D1S8N) with 1 ea. desander cones & 8 desilter cones. This mud cleaner could be installed after shale shaker to deal with the drilling mud and separate contaminants with the diameter above 20 to 40 microns.

GNZJ703E-D1S8N with 3 panel shaker screen could be transformed to shale shaker usage, just take apart the upside steel frame with desander cones and desilter cones.

2) GN replaceable shaker screen for Derrick shale shaker

GN Solids Control is also able to offer replacement shaker screen for Derrick 500/2000 PMD/PWP shaker. The alternative shaker screen can achieve almost same working performance however with better cost.

Aside from this, GN is also able to offer replaceable shaker screen for Nov Brandt king cobra, Swaco Mongoose etc.

3) GN Shale shaker for Argentina customer

The Argentina customer is GN old customer with stable requirement each year. Some year, they're buying decanter centrifuge for solids control some year, they're buying shale shaker replaceable for Derrick shaker.

GN may also offer 4 panel shakers that are replaceable for Swaco Mongoose composite material shaker.

4) GN Poor boy degasser for South America customer

The South America customer buy 10 sets decanter centrifuge from GN Solids Control in 2011. The performance is excellent. Lately, we receive repeated order in the customer with one poor boy degasser. This really is backup equipment for oil drilling rig site.

This season is nice harvest year for GN Solids Control. Decanter centrifuge with more than 100 teams of sales amount, vertical cuttings dryer with more than 20 sets sales amount, shale shaker & mud cleaner with more than 100 teams of sales amount. GN Solids Control happens to be top direct export company within this area.

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C-face mud tank agitator for mud system

Introduction of C-face mud tank agitator for mud system

GN design and manufacture C-face mud tank agitator for various mud systems. It's accustomed to agitating mud within the tank, to combine mud well making the mud with equal weight, and the other function would be to keep your drilling mud movable. It's horizontal type mud agitator. Explosion proof motor interact with targeted reduce directly. It's less complicated to mount on the mud tank having a small footprint which is convenient for and maintenance.

Programs of C-face mud tank agitator for mud system

The horizontal type C-face mud tank agitator is broadly utilized in different mud systems. For example:

1) Mud solids control system for gas and oil drilling rig

2) Mud cleaning / purification system for HDD & CBM drilling

3) Desanding plant for piling and micro tunneling

4) Mud agitator is an essential part for liquid mud plant for mud mixing

5) Other mud tank system

Options that come with C-face mud tank agitator for mud system

1) Explosion proof motor for hazardous area as well as for longer lifetime

2) The horizontal drive is made for installations getting only a little space over the mud tank.

3) Motor is associated with targeted box directly for any smaller sized design and simple for mud tank mounting.

4) Utilize worm gear reducer. Compact design, perfect joggle and reliable operation.

Other equipment used lengthy with C-face mud tank agitator for mud system

Mud gun is broadly for use together with C-face mud tank agitator for mud system. Is dependent around the tank dimension, one or two mud gun will be applied out tank corner. Mud agitator can be used to agitating mud from center, you will find some corner that mud agitator not workable. Within this situation, mud gun can be used to agitating mud at corner.

Mud agitator operated by electrical motor, while mud gun is operated by mud pump (ruthless mud gun) or from mixing pump (lower pressure mud gun).

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