Jun 02

GN Solids Control already ship 3 sets HDD drilling mud system to one client in Middle East in the past two years. The clients give repeat purchase order as they are satisfied with the GN compact mud cleaning system for HDD project. For overseas HDD market, very few clients need centrifuge because of the higher cost, as well as the technical operations. However, the client was faced with more critical situation in one HDD site and need one set middle speed centrifuge to remove the fine solids from the drilling mud, to ensure the recycle mud can be reused effectively.

CENTRIFUGES 2016

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May 21

As GN drilling waste management system is working well for Russia clients, this is the fourth containerized type drilling cuttings management system sent to Russia oil Service Company. Big Clients from Russia always prefer this containerized design that could make all equipment indoor, to avoid the cold surroundings and ensure the machinery running smoothly in cold weather. Operator could run the equipment inside, and this standard container type is also convenient for transportation by sea.

160520 Waste Management

Vertical cuttings dryer is one of the important equipment for waste cuttings management system. The waste slurry can be separated into much dryer solid discharges and recover liquid after treatment of cuttings dryer. The cuttings dryer unit in this project is 4th generation model dryer with normal RPM of 900, equipped with air knife system and flushing system for cleaning of screen and liquid discharge ring during equipment running. This can also be used to avoid block inside the cuttings dryer.160520 Vertical DryerVacuum cuttings pump is used to transfer the waste material into the vertical cuttings dryer. The advantage of using the Vacuum cuttings pump is less limitation to locate it and this type pump works very well for high density waste transportation. As backup, we also provide one set screw conveyor for feeding the cuttings dryer in case the cuttings pump not fit for some special cuttings. Another set Screw conveyor is also provided to install under the dryer unit to transfer the solid discharges out to the container.

After treatment of cuttings dryer, the recovered fluids need to go to centrifuge for further treatment. The high speed Decanter centrifuge with bowl speed up to 3200RPM separation points can be about 5-10microns. Centrifuge can separate much fine solids with bowl speed range 2700RPM to 3200RPM. We match variable speed VFD control panel for easier operation. With PLC touch screen, the operator can adjust the centrifuge bowl speed, differential speed and pump feed speed very easily.

Additional, there is waste cuttings skip to collect the cuttings coming from the conveyor. This cuttings skips is also design and made by GN Solids Control with cover for hazardous material further transportation.

160520-Container-Cuttings-Dryer

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Dec 24

GN Solids Control can offer complete line of solids control equipment, drilling mud system. The power source is various pumps; we are also original manufacturer for various pumps, including screw pumps, centrifugal pumps, submersible slurry pumps, shear pumps etc.

Recently, we have several order ready for delivery, I concluded all the pumps used for recent project, and find that pumps & electric control panels is also big value. There are 12 sets centrifugal pumps, 4 sets submersible slurry pumps, 9 sets of screw pumps.

1) GN Centrifugal pumps & Electric control panel

GN centrifugal pumps is replacement for NOV brandt mission pumps, Pump shell and impeller is wear-resisting material, pump with Kansai heavy anticorrosive paint, longer lifetime. We can match solids control mud system with centrifugal pump, we can also only sell the pump for client’s actual application.

We generally can match electrical control panel & cable to connect from pump motor to control panel for convenient use.

2015.12.24 centrifugal pump

2) GN Submersible slurry pump & Electric control panel

GN Submersible slurry pump can be used for fluids transfer with big particles. It is single stage and single suction slurry pump. The pump shell and impeller no bearing, no shaft seal, which can transport great medium of solids particles.

The slurry pump can be installed in mud tank to transfer mud out, can be installed on mud pit in HDD jobsite.

We can also match electric control panel & cable connection from slurry pump motor to control panel.

2015.12.24 SLURRY PUMP

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Nov 19

GN Solids Control is mainly focus on solids control equipment manufacture and drilling waste management manufacture. Pump, as system transfer part, make the total system to be active.

GN Solids Control equipment including: shale shaker, mud cleaner, desander, desilter, centrifuge, screw pump, centrifugal pump, submersible slurry pump, mud hopper, mud agitator, mud gun, mud tanks et.

GN drilling waste management equipment including: vertical cuttings dryer, screw conveyor,  waste management centrifuge, High G dryer shaker, solidification unit, fixation unit, flocculent unit, dewatering unit, thermal desorption unit etc.

GN various pumps including: GN Screw pump, GN centrifugal pump, GN shear pump, GN submersible slurry pumps etc.

1) GN Screw pump:  This pump is ideal pump for feeding decanter centrifuge. It is displacement pump without agitating the drilling mud when feeding. We can offer China brand screw pump with lower price, as well as Germany brand screw pump with much better working performance and longer lifetime. Price of Germany brand screw pump is higher than the first one.

screw pump

screw pump

2) GN centrifugal pump: This pump is used for feeding the desander cones & desilter cones in drilling mud system. It can also be used with mud hopper, to circulate the drilling chemicals and mixing the chemicals.

2015.11.20 centrifugal pump

centrifugal pump

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May 15

Yesterday, GN Solids Control dispatch a big batch of solids control centrifuge & vertical dryer, with pumps, screw conveyors, spare parts etc, totally by 7 12meter long vehicles. The customers is international drilling company with large quantity of land rigs & some workover rigs. After tested GN centrifuge in jobsite, this old customer buys more and more solids control equipment package from us from last year.

For this order, the detail of purchase order is below:

1) 6 sets decanter centrifuge, which will be used for 3 rigs. The centrifuge will be used for barite recovery and mud weight cutting. GN Solids Control centrifuge learn and upgrade many highlights from Alfa Laval, the good frame centrifuge brand from Germany. Now, we have upgrade to 3rd generation centrifuge. The price is good and performance is much better than before.

decanter centrifuge for drilling

 

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Apr 12

Pumps are mainly for transferring functions in drilling mud system. It is joint for different parts of mud system; the whole drilling mud system can be one unit only with help from various pumps. GN Solids Control is professional drilling mud system manufacturer, and also various pumps supplier, like centrifugal pumps / sand pump, shear pumps, submersible slurry pump / vertical slurry pumps / screw pumps, mud pump excluded. Mud pump is transferring drilling mud back to rig, require much high pressure. Generally, mud pump is offered by professional mud pump supplier, not solids control equipment supplier.

various pumps

 

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Dec 16

Oil drilling centrifuge is used for solids control service, to separate the fine solids from drilling mud. Stable working pressure pump with smooth liquid flow can add better performance on the centrifuge. GN Solids Control is China No.1 centrifuge manufacturer with professional experience on centrifuge operation and feed pump choice.

For solids control and drilling cuttings treatment equipment supplier, 2015, focus on GN Solids Control.

 1) Fixed speed screw pump

GN Solids Control choose top screw pump supplier Netzsch Germany brand pump. After many years cooperation, Netzsch & GN have built long terms cooperation relation with reliable quality, reliable delivery time and competing price. The positive displacement pump is single screw pump, can feed centrifuge without shearing the mud or without agitating the mud, slow inner flow speed, remains stable capacity, steady pressure, no Vertex will be generated with this screw pump.

If the end user wants one variable speed match with centrifuge, we can offer separate VFD control panel to control the motor frequency on the pump.

 2) Mechanical speed adjusted screw pump

If people don’t want the separate VFD control panel, we can also offer mechanical speed adjusted screw pump. However, the cost is much higher than general pump and also the delivery time is much longer. As many customer are pretty familiar with this kinds of pump, the end user prefer to this pump.

The feeding function is almost same with pump with separate VFD control panel.

mechanical speed adjusted screw pump

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Oct 28

There are many pumps need to be used for solid control system, like centrifugal pump, submersible slurry pump, shear pump, screw pump etc. The pump is accessory equipment to solid control system, not main equipment, but also necessary for your smooth job. If the pump quality is not reliable, you may find many troubles during the work.

GN Solids Control Co., Ltd. is the first API and ISO certified solid control equipment manufacturer from China. Their equipment is widely used in many areas of the world. The reliable product quality and nice service win good reputation for them. Hereunder, we see one importance pump, shear pump in all perspective.

Shear pump

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Feb 01

What is the difference in operation between positive displacement pump and centrifugal pump?

Positive Displacement Pumpswill not p roduce the same flow at a given speed (RPM) no matter the discharge pressure.

positive displacement pump

positive displacement pump

Positive Displacement Pump must not be operated against a closed valve on the discharge side of the pump because it has no shut-off head like Centrifugal Pumps. A Positive Displacement Pump operating against a closed discharge valve, will continue to produce flow until the pressure in the discharge line are increased until the line bursts or the pump is severely damaged – or both.

The positive displacement pump can be applied as

  • rotary lobe pump
  • progressing cavity pump
  • rotary gear pump
  • piston pump
  • diaphragm pump
  • screw pump

When positive displacement pumps serve as a screw pump for feeding drilling fluids decanter centrifuge, when you change the frequency of the main motor through the VFD control panel, the treating capacity of decanter centrifuge will change, so the flow rate need to be lessed.

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Sep 14

GN designed centrifuge mud tank for oilfield and dredging project, with 1 unit of GNLW553VFD decanter centrifuge(or other model available) and Nemo pump to feed the centrifuge, the centrifuge tank is divided into 2 compartment, the mud after treated by shale shaker, desander/desilter flow or be pumped to compartment 1, then Nemo pumppumped it from the compartment 1 to the centrifuge for processing, the clean drilling mud dropped into compartment 2, which can be pumped to other application or flow to anywhere required.

centrifuge mud tank

centrifuge mud tank

In oilfield application, sometimes mud hopper unit also installed on centrifuge mud tank, the mud which will be feed to centrifuge is with solids smaller than 20 microns, it has been separated by desilter cone. After treated by decanter centrifuge, the max solids remained in the drilling fluids is smaller than 5 microns, it is called “clean mud”. The clean mud may be weighted in pill tank/compartment and mixed by mud mixing hopper & mixing pump.

In Dredging project, centrifuge mud tank is applied after dredging slurry separation system, after treated by the desander ( or sometimes desilter), the solids remained in the slurry may be too fine to be separated out by the centrifuge, so you need a flocculation tank before centrifuge mud tank. After flocculation, the mud is concentrate so It is easy for centrifuge to separate it, this is for better performance. So you have to use a positive displacement pump to pump the flocculated mud to centrifuge, otherwise the centrifugal pump will break it off. Sometimes filter press will replace the centrifuge, but efficiency of filter press is not so dissatisfied, so people use large treating capacity centrifuge instead.

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