Jan 13

A complete separation system is not only about the equipment used for separation, but also includes the equipment used for transferring material into the separation machines. A suitable and stable transferring pump ensures the efficiency of the equipment it feeds for and even greatly affects the whole system’s running.

GN Solids Control is professional in providing separation solutions, and all necessary pumps, too.
Like for the shale shakers, if the material to be treated is from the pit or pond, GN has submersible slurry pump or vacuum pumps, for the desander or desilter, GN has full series of centrifugal pumps and etc:

1. Centrifugal pumps: centrifugal pumps are the most frequently used mud transfer pumps in a solids control system, it is used for desander and desilter feeding, jet mud mixing, and trip tank filling. GNSB series sand pumps are totally interchangeable with Mission pumps even for small parts, and the raw material used for GN centrifugal pumps are most suitable for drilling mud transferring.

2. Vacuum Pump: it is also called the sludge pump or solids transfer pump, cause it can handling a material with high solids content and large particle size. It is fully mechanical driven by compressed air, and movable. It is widely used in waste management, oily sludge separation and construction.

3. Submersible slurry pump: it is used for pumping sludge from mud pit to a desander unit or other equipment, it is also an economic solution as centrifuge feeding.

4. Screw pump: GN cooperate with international famous pump brands for centrifuge feeding. Normally, in VFD control panels for decanter centrifuge, the 3rd VFD is used for the screw pump speed adjusting, and also for fixed peed screw pumps, GN also provide customized solutions by adding mechanical adjusting device.

5. For deep drilling works and some big capacity solids control system, GN has shearing pump for cutting the material with high viscosity.

If you need more information or some pumps in your project, welcome to contact GN freely.

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

Jan 06

There are several different types of drilling muds used for different drilling conditions, mainly divided into 3 types, the water based mud, oil based mud and SBM. The mostly used ones are WBM and OBM.

For deep well drillings, the OBM is most common solution. Considering it’s components, the oil based mud is more expensive than water based mud, that’s why as much as mud should be recovered from the waste. Meanwhile, the OBM is more harmful to the environment if the cuttings from drillings are not well treated before discharge. As leading manufacturer and solution provider, GN Solids Control has designed and supplied to many different end users with its professional solution for drilling cuttings treatment. For oil base mud cuttings, recently, another new set of such system was successfully use in CNPC, one of the 3 largest oil companies in China, both their engineers and operators are giving good comments.

cuttings treatment system

This system includes:

1. GNCD930 vertical cuttings dryer, which is specially designed for treating the oil based cuttings, it is like a washing machine. By using screen baskets of different mesh sizes per cuttings condition, and after the vertical cuttings dryer, the oil on cutting could be reduced to below 0.5%.

2. The second treating machine is a high speed decanter centrifuge. In this project, the end user chose GNLW363CG-VFD, a 14 inch diameter bowl decanter centrifuge, with variable speed up to 3200RPM. It is used for further treatment of drilling fluid discharged from the vertical cuttings dryer.

3. Transferring equipment. For transferring the drilling cuttings, GN has different suggestions based on customers’ jobsite layout and cuttings location. Normally, if the cuttings treatment system is alongside the rig and used for treating the cuttings direct from solids control system, screw conveyor is good choice to collect cuttings from shaker and transfer to hopper of vertical cuttings dryer. If the wed cuttings are from a pit or pond, we recommend GNSP vacuum pump.

For more information, welcome to contact GN sales team directly.

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written by shale shaker \\ tags: , ,

Nov 21

In last blog, we introduced the shale shaker and mud cleaner in a compact mud recycling system produced by GN Solids Control for the SINOPEC. In this system, there are in all 4 steps of separation, with the first step as shale shaker, second step as the mud cleaner with 1 of 10 inch desander cone and 8 of 4 inch sized desilter cones. The dewatering centrifuge is the fourth step separation for the fine particles left in the liquid.

cof

Why need a decanter centrifuge?
Till now, the decanter centrifuge is a second to none choice for choosing out the particles in the drilling mud between 2 to 5 microns. Even for finer particles, the decanter centrifuge can handle them by adopting a chemical dosing or so called flocculating unit.

How to choose a suitable centrifuge?
1. First of all, to choose a suitable size of centrifuge, the diameter of a centrifuge determines the treating capacity of a centrifuge. In this project, the end user chose GNLW363-VFD, with a 14 inch bowl diameter while the speed is typically 3200RPM, which is quite popular in drilling solids control and drilling waste management applications. Besides this most popular model, GN has centrifuges from small size as 9 inch bowl to big size up to 30 inch diameter bowl.
2. The centrifuge bowl diameter ratio determines the particle size to be separated out, for example, the longer centrifuge is, the dryer solids come out. Among GNLW centrifuge models, there are bowl length diameter ratios for option from 2 to 4.
3. And the higher speed a centrifuge has, the finer particles to be separated out. Per different speeds’ range, there are middle speed centrifuge and high speed centrifuge. Normally a middle speed means around 1800RPM, for example as the big bowl centrifuge GNLW452, with a typical speed as 1800RPM, and a bowl of 18 inch diameter, which is mostly used for barite recovering in a solids control system.

Welcome to send your project information to GN for more professional suggestions.

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written by shale shaker

Nov 04

Just last week, GN Solids Control has finished a compact mud recycling unit, with full steps for separation for one of the largest oil giants in China. This system is to be transported to the jobsite by end of this year.

This system has 4 steps of separation, including:

1. GNZS703F. Shale shakers are always the first step for separation, because of GN shakers’ high G force and accurate API complied shaker screens, this shale shaker can efficiently separate out all particles larger than 100 microns, there in hence to help with prolonging the service life of the centrifugal pump after the shaker.

2. GNZJ703F-1S8N Mud Cleaner. Mud cleaner is a combined machine of desander and desilter, at a smaller foot print. It uses interchangeable shaker screens as GNZS703F, 2 centrifugal pumps are used to feed the desander and desilter respectively.

3. GNSP series Centrifugal pumps are also GN’s own products. For material choosing, GN used the high quality anti-weary material as pump body material by hard ductile iron alloy, and the main pump body is thicker than other manufacturers’. All GNSB series centrifugal pumps are using stainless steel mechanical seals.

4. Tank and skid for above mentioned equipment. Above mentioned equipment are located as 2 blocks. One block is a skid with lifting and anchoring corners just as a 20ft container, and the shale shaker and mud cleaner are located in the skid during transportation and operation. That design facilitates the operator for transportation or lifting the whole skid onto a tank, no to adjust each equipment or pipeline’s position.

5. A tank with compartments are designed to storage the mud from the shaker and from the desander/desilter. On below the tank, there are some slots for installing the centrifugal pumps. The whole outsize of the tank is also same as a 20ft container with container corners for lifting.

GN mud recycling system

GN mud recycling system

 

 

 

Besides the shale shaker and mud cleaner, there is another block for the dewatering centrifuge, please contact GN Solids Control for more information or wait for next week’s blog.

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

Sep 25

Although in recent years, a large percentage of GN Solids Control’s products are sold to different industries besides the solids control projects, solids control systems and equipment are still GN’s traditional business of which GN’s brand is still quite well known and widely accepted. And GN customers in oil and gas solids control industry are introducing some of GN new products into their traditional works.

gn powerful vacuum pumps

vacuum pumps

Vacuum pump is one of the most popular products of recent 2 years ever since GN firstly showed one of such pump with a capacity of 40 cbm/hr in CIPPE Oil Show in Beijing for year 2017. In the following year, also in CIPPE oil show, GN showed another model alongside with GNSP-40A, which had half capacity and need half air consumption, with a compact and movable design, the GNSP-20A.

The vacuum pumps are quite powerful small machine. It could handle a material with quite large particles size, as long as the particle could pass the hose’s diameter, and with some liquidate. Such like the sands and small stones. Talking about transportation power, take the GNSP-40A for instance, it can suck the material from 50 meters away and deliver it to more than 100 meters away. Now it is widely used in oily sludge separation systems in refineries, in chemical industries, for tank bottom cleaning works, and for drilling cuttings transfer in oil and gas drilling.

Comparing with other pump types, like the GNSB series centrifugal pumps GN provides for the desander/desilter feeding, for the jet mud mixing, or with the submersible slurry pumps for feeding the centrifuge and sucking mud from mud pit, the vacuum pump, although powerful, it has some shortcoming like non continuous operating. But GN engineers are working on it, in order to find some solution. Let’s see.

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written by shale shaker \\ tags: , , ,

Jun 20

Moscow, the capital of Russia, is famous of its rich history and cool weather. But recently, it is heated up because of its role as the host of FIFA 2018. 32 top football teams are gathering in Moscow, occupying the full attention of the whole world.
Meanwhile, another things is also warmed up in Moscow, which is the oil and gas market. As the gradually raising of the crude oil price, as the world’s second largest oil reserving country, Russia’s oil and gas marketed is providing more and more opportunities.
GN Solids Control has been supporting Russian Market for many years, and GN products are well known in Russian market:


1. The traditional solids control equipment: GN Solids Control has provided to Russian market many sets of complete solids control systems, including the shale shaker, mud cleaner, mud mixing unit including the centrifugal pumps, mud mixing hoppers, mud agitators, mud guns and etc. Some end users are building tanks by themselves or build tanks locally, but they trust GN Solids Control’s quality, so they prefer to buy from GN for the equipment.
2. Drilling cuttings waste treatment systems: GN provides 2 different solutions for drilling cuttings waste management , for water based mud and for oil based mud. In Russian, OBM is more widely used, that’s why the OBM drilling cuttings waste management systems are more popular. GN has provided more than 10 sets of such systems including GNCD930 series cuttings dryers and GNLW363 series decanter centrifuges and their feeding pumps.
3. GN Shaker Screens: in GN’s shaker screen factory, the automatic shaker screen producing line makes composite material frame screens for all main shaker models all over the world, including GN own models and other brands like Derrik, Mongoose, Cobra and etc.
Enjoy your World Cup 2018 and have a prospective year 2018.

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