Jan 16

GN Solids Control is one of the leading brands for solids control and waste management system, and second to none ranks among Chinese manufacturers in this industry. A lot of worldwide famous oil companies and oil drilling companies are using GN equipment and comprehensive solutions, including SINOPEC, CNPC and COSL. Recently, GN delivered main equipment for 2 sets of drilling cuttings waste management systems for CNPC.

GN BIG BOWL CENTRIFUGE FOR CNPC

Drilling cuttings are solids discharge from the drilling rig solids controls system, from the shakers, desander and desilters. After the solids control system’s first 3 phases separating, the drilling fluids are returned back to the system without the solids particle. But the separated-out particles are still too wet. For one thing, it is a waste for valuable drilling fluid. Secondly, it could damage to the environment if disposed directly. That’s why it is not only necessary but also mandatory to do some further treatment for the drilling cuttings.
GN Solids Control has zero discharge solutions for both WBM and OBM. And this order, combining the vertical cuttings dryer and decanter centrifuge, is for the oil based mud. A vertical cuttings dryer is specially designed for the oil based mud separation. GNCD930 series vertical cuttings dryers could dry the drilling cuttings to reach OOC value to 5%. The vertical cuttings dryer is running as the drying step of a washing machine. The vertical cuttings dryer is equipped with a screen basket with certain mesh number. Fluids pass the mesh and collected, while cuttings are stopped by mesh and falls down.
GNLW series decanter centrifuges with VFD control panels are used after the vertical cuttings dryer to remove the particles from 2 to 5 microns from the liquid. Most common model is GNLW363CG-VFD, a medium sized centrifuge with a high rotating speed. But for bigger treating capacity, GN has GNLW453C-VFD and GNLW553-VFD available, both of high rotating speed while bowl sizes are respectively 18 inch and 22 inch. In this project, clients chose GNLW453C-VFD.
Pls contact GN for more information.

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written by shale shaker \\ tags: , , , ,

Jan 07

A solidification unit or called solidification system is an efficient and economic solution for the treatment of drilling cuttings from both oil based mud and water based mud. Besides, it could also handle the sludge from some cuttings or waste pit. The principle is not so complicated, but the performance and continuous working ability are defining a solidification unit.

solidification unit

GN newest solidification unit ready for delivery

Since three years ago when GN Solids Control firstly designed and put into use the first set of GNGH Solidification unit, with the valuable feedbacks and experiences from both domestic China and abroad, GN improved the solidification unit several times. In a result, it is now more human oriented and easier to operate. This ready for delivery solidification unit is a newly designed one, and it would be its first show on client’s jobsite in a few days. It has following features comparing with previous design:

 

GN Solidification Unit System
1. It is more compact than before, with a smaller cuttings feeding hopper just above the coulter mixer the solidification unit itself are changed from two pieces into one piece. It is easier for transportation and later rig up on jobsite after transportation.
2. This new one is automatically controlled by a PLC control panel. All electrical components from brand Schneider, ABB or Siemens. Main operating data could be seen clearly on the screen and touching screen is easy for operators to control.
3. Mixing time could be controlled automatically and manually. Comparing with last model, this one is equipped with an electrical valve on discharge port of the unit, by using this, the operator could control the time period for the material to stay in the mixer for a better and adjustable mixing result.
4. Three VFD’s for the feeding. In this system, there are 3 feeding hoppers, all of which are VFD controlled by the control panel, then the fed proportion of chemicals, cement and cuttings could be adjusted according to the on time being conditions.
If you visit GN in recent days, you can check this system by yourself.

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written by shale shaker \\ tags: , , ,

Jan 01

A busy year always seems more quickly than usual, just like year 2017 for GN Solids Control. Since the decline of the crude oil prices from late Year 2014, it has been winter for all related industries and a tough time for all drilling companies. But, still, there are opportunities and gains for the ones who are ready to provide the clients with high quality products at reasonable prices.


When there are landmarks on each year, then the year will become remembered easily, as the year 2017 for GN Solids Control.Look back upon the past years from year 2017, GN has gained many achievements. As a privately owned company, they are not easy to achieve those goals.
Year 2017:
March, 2017 in Beijing, CIPPE, GN Solids Control showed a fully hydraulic decanter centrifuge of 14 inch diameter bowl at CIPPE Oil Show. But the glary of the fully hydraulic centrifuge was shadowed by the GNLW764-VFD Decanter centrifuge which has a 30 inch giant bowl and a large length diameter ratio up to 4.
May, 2017, GN new screen producing line was put into use, and all frame screens were upgraded with the composite material frame and SS316 mesh cloths. And full range of GN screen models has been tested to comply with API RP 13C, with large conductance and unblocked area. GN Screens are receiving perfect feedback from jobsite tests among all end users.
September, 2017, GN’s vacuum pumps are receiving good feedback from clients’ jobsites, and GN executed a tougher test in factory with low liquidate material on GN 1st generation vacuum pump. The result was satisfactory. It means, the problem for drilling cuttings transferring is solved, and the vacuum pump could handle material with solids content up to 80%.
We believe, GN will do better in Year 2018. We will see.

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written by shale shaker \\ tags: ,

Dec 22

Each year, GN Solids Control produces around 150 sets of decanter centrifuges, a certain number among those are used for flocculation systems together with some chemical dosing systems. In some countries and regions, it is compulsive to have a set of flocculation unit and a decanter centrifuge alongside of the drilling rig, in order to treat the drilling fluids on time. And the after treated drilling fluids could flow back to the drilling system.

containerized GN dewatering unit

GN Dewatering unit in 20 ft container

GN Standard Chemical Dosing Unit’s model is GNDW2000, which is designed in a standard 20ft container. It is easy for transportation and even suitable for hot or cold conditions. Inside the container, GNDW2000 chemical dosing system includes:

1. Three chamber polymer powder mixing unit, with a 2000L/hr treating capacity.
The three chamber tank has a total volume of 2000 liters. It is divided into 3 chambers for different functions: the first chamber is used for mixing the chemicals. After chemicals are added into the tank via a hopper, the small agitator is used to evenly mix the chemical into the water. Second chamber is for the polymer to dissolve. It need some time to dissolve before being added to the drilling mud. Normally it need 45 minutes. The third chamber is for storage. The ready dissolved fluid is in this chamber, waiting for pumped out by the dosing pump.
2. GNDW2000 Unit is using high standard material. The 3 chamber tank is made of stainless still. Besides being used as polymer dosing unit, it could be used for adjusting PH value also, by adding different components.
3. GN dewatering unit is a continuous working system with automatic functions. There are three level meters in this system for monitoring the levels and allow the system and operator to give suitable adjustment.

GN other equipment for waste management
If you have more interest, welcome to visit us or contact GN sales team directly.

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written by shale shaker

Dec 20

GN Solids Control is a famous brand who started from solids control equipment manufacturing, and now also professional in separation solution provider in nearly all fields including the oil gas drilling projects, HDD projects, TBM works, piling, water well drilling, drilling cuttings treatment, drilling fluids treatment and other industrial separation works.

GN EQUIPMENT WORKING VIDEOS
But still, among all the applications GN Solids Control’s products are used for, the traditional solids control system and equipment still occupies a large ratio among all GN’s products of each year, especially for the high standard clients, GN Solids Control is still their favorite and reliable supplier. For example, the Asian and Parcific market, like in Australia, New Zealand and India, where their standards are even higher than the USA and Europe.
In Australia, there are some special and difficult to reach standards, including the electric cable connections and layout, the tank surface treatment, the material choosing and even stair positioning. But GN Solids Control has rich experiences in working with Australia and New Zealand and also is well known by those clients. That’s why, during the past years, GN Solids Control has sold to Australia more than 30 sets of mud systems, not including the single equipment like decanter centrifuges and vertical cuttings dryers.

GN RECENT PROJECT NEWS
India is also a special market, India has talent management team and also brilliant engineers, they set up a high standard for their equipment, especially in oil and gas industries. For example, the shale shaker material, they always request the stainless steel as the material of the shaker frame. Although there are local solids control manufacturers in local India, still, clients are coming to GN for the suitable models and solutions. Even in Middle East, the management from big Middle East countries who are Indians prefer to choose GN Solids Control as manufacturer.

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written by shale shaker \\ tags: , , , , ,

Dec 12

Recently, GN has produced for 2 different clients who worked for similar projects, with following equipment and solutions:
1. GN big bowl 22 inch diameter decanter centrifuges.
2. GN chemical dosing unit
3. GN standard containers.

GN CONTAINERIZED CENTRIFUGE AND DEWATERING

GN has been providing this design for many years, and the technology is quite mature:
1. GNDU2000 Chemical dosing unit. GN has been providing the chemical dosing unit or so called the dewatering unit for many years, since some of GN clients are using GN centrifuges as dewatering centrifuges and prefer GN to make compact design for them. A chemical dosing unit is used to treat the material by some chemical methods, for example, to add some material to reduce the viscosity of material, or to flocculate the extra fine particles into larger ones, which are suitable for centrifuge use.
2. GNLW553C-VFD decanter centrifuge is a big bowl decanter centrifuge with a treating capacity up t to 90 cbm per hour, and the rotating speed could reach 3000 rpm. It is quite suitable for drilling liquid management, especially being used together with chemical dosing system. Normally, the centrifuge treating capacity for material after flocculation would be greatly reduced, that’s why a big bowl centrifuge with a large treating capacity is always used for this application.
3. 20 ft containers for housing the centrifuge and chemical dosing system, which is quite popular design. For one thing, it is more convenient and easy to transport the system when the main equipment are in standard containers. Secondly, the containers give a shield to the equipment, providing a suitable temperature and clean condition. Thirdly, the 2 sets of 20 ft containers could be put one under another, in this way, less room to be occupied.
In this design, GN engineers designed the round shaped ladders for the upper located container with the big bowl decanter centrifuge, when transporting, the ladder could be put into the container.

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written by shale shaker \\ tags: , ,