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Sep 18
Mud agitators is one of the most important equipment in the mud system, it does not matter if it is big or small, when you want to make sure the mud in the tank is active, mud agitator would be the right choice. Though still can use mud gun, in many different design, agitators are the most efficient option. Mud agitator and mud gun normally are used together, as mud agitator will agitate most of the tank volume, still the corner maybe missed, then mud gun will do its work, jetting the corner, and active them to the whole circulation.
Recently, GN finished the fabrication of almost 60 unit mud agitators and several unit vacuum pumps for a domestic client.
GN mud agitator is flanged connection type with compact structure. It is cost competitive and mostly used in the mud recycling system for mud mixing. In the mud system, mud agitator is installed in mud tank with stirring function to prevent the solid particles settlement down to the tank bottom. Another function is mixing to accelerate the dissolution of the mud materials. The mud agitator is mainly consisting of motor, gearbox, stirring shaft and impeller.
Vacuum pump is quite a new product, whist it actually was widely used in offshore projects, to transfer mud, sand, and doing tank sendiment transfer etc., nearly no restriction except the demand for air to drive it. GN has vacuum pump with flow rate of 40, 20 and 10 cubic meter per hour for client to select. For easy and continuous operation, GN vacuum pump can work under automatically mode.
GN keep doing R&D on different products, different applications also keep investing on the existing market, to make better and more user friendly products, freely to get in touch.

written by desander desilter

Sep 09
HDD mud system is one of the main business GN have been working, still good business. Except a few loyal big clients like CPP, purchase a lot each year, introduce their friends etc., more and more repeated orders from the client who used GN equipment, some times same person, new company, or vice verse. India has always been a big market for a long time, and assume it will be in future. We have been dealing with India people from companies all over the world, also lots of local Indian companies.
Below is some repeated order from them.

Continue reading »

written by desander desilter

Sep 04

Mud gas separator and shale shaker is the most basic equipment for oil gas drilling projects. Last week, GN finished the manufacturing of several units poorboy degassers and shale shakers that ordered by an Egypt client. Now the order has been packed well and waiting for delivery. Nowadays, to make sure we have fast enough delivery time, we normally keep a few mud gas separators in stock.


GN is the rarely few solids control companies put as much as possible resource on R&D, and to make sure always on the right track, we refuse the order for copy equipment.
GN’s mud gas separator has a simple structure with fluid inlet at upper part of the vessel. Inside the vessel, several baffle plates are welded on the inner wall of the vessel. The drilling fluids coming from the inlet will impact on the baffle plates so as to release the gas in the fluids.


GN shale shaker has below features to provide excellent performance to client
1. Simple structure with strong vibration deck for easy operation
2. Composite frame screen for long working time and convenient replacement
3. Patented embedded sealing technology to prevent fluids leakage
4. Stainless steel screen support frame for better anti-corrosion performance
For the basic equipment, GN is doing best to lower down the price, and keep high quality. Even for shaker screens, GN composite pretention screens have been proved on many sites, that it is equal or better than US / EU origin screens. Welcome contact us for details.

written by desander desilter

Aug 19
Partnering with EMEC, GN Solids Control have been very successful on the local market. Now more and more client now know and accept GN. This time, EMEC bouight a few sets FHD decanter centrifuge, and planning to upgrade some of the stock decanter centrifuges to FHD. Fully hydraulic drive have been accepted by more site people because of reasons.
Features of the FHD decanter centrifuge.

1. The complete unit is compact structure design with centrifuge, hydraulic driving system and the control system in one skid for easy rig up. The PLC system with smart control and safety protection is guarantee for clients’ easy operation.
2. In this unit, the full hydraulic drive system could be used in high temperature ambient for heavy mud with flexible bowl and differential speed. This greatly ensures the working safety and multipurpose application of the centrifuge unit like in barite recycling in mud system, fine solids separation waste mud management.
3. GN fully hydraulic drive decanter centrifuge is designed with adjustable bowl speed, differential speed and liquid pond depth for discharging different dryness of solids for different slurry conditions to meet operators’ requirements.
4. The rotation part of the centrifuge is processed by high precision CNC machine and balanced by high speed balancing machine for reliable performance. The centrifugal casting bowl is made of duplex stainless steel 2304, Tungsten carbide material for protection of screw propeller, mud inlet distribution port and solids discharge port, SKF bearings to give the centrifuge maximum operation life with less maintenance.
GN and Viscotherm has been jointly working together to develop the Full hydraulic drive centrifuge for international clients to meet the highest standard. GN Solids Control is a leading decanter centrifuge manufacturer. And Viscotherm and ROTODIFF® from Switzerland are leading brand for centrifuge hydraulic driving system.
The hydraulic bowl and scroll drive system drives both the hydraulic motor ROTODIFF and the bowl of a decanter centrifuge from hydraulic pump unit by two hydraulic oil circuits.
Get more details: https://doc.co/YFXwgh

written by desander desilter

Aug 04
Recnetly we sent few sets of screw conveyor to Africa, for the solids waste transfer. Been focusing on waste management equipment manufacturing, screw conveyor is one of the most important components, as when more cuttings comes, pumps barely help. Screw conveyor is widely used in oil drilling site for waste material transferring. This week, GN completed the fabrication of a batch screw conveyers ordered by a client from Africa. After the factory delivery inspection, these screw conveyers would be shipped out.
So from shaker to the skip, or feeding the vertical cuttings dryer, discharge the solids from shakers, decanter centrifuge, cuttings dryer etc.
GN screw conveyor is designed to offer an efficient, low cost, cutting transportation system both offshore and onshore drilling installation. Per client’s requirement, the variable frequency motor can be adopted for freely speed control. For safety consideration, the whole body of the screw conveyor is fitted with protective grating or cover to prevent foreign matters entering the conveying system.
For drilling waste cuttings collection and transferring. In mud system, the drilling fluids coming out from the well will be feed into the shaker, cyclone and decanter centrifuge step by step. In each state, the drilling cuttings with different size will be discharged out from fore mentioned equipment. The screw conveyor is the ideal equipment to collect all the waste cuttings and make a pit-less mud recycling system. For this purpose, several unit screw conveyor would be installed beside the mud tank and under the separation equipment discharge chute with the top cover open for easy collection.
For waste cuttings treatment and transferring. The collected waste cuttings still has large content liquid that can be recovered. According to the position of the cuttings dryer unit, operators can adjust the location of the screw conveyer for feeding the waste cutting into the dryer unit. More drilling fluids would be recover, less waste will be discharged. In the meanwhile, an extra screw conveyer unit can be positioned under the discharge port of the dryer unit so that can transfer the treated cuttings out of the system.
GN is now intending develop more business from separation, transfer equipment, with new company located in the new place. Hopefully in near future, there will be more new product coming.

written by desander desilter

Jul 16

It may looks similar to some other products, but GN invent this unit, and now applying our own patent. GN is only able to provide the ViST vacuum shaker screen system to fit on GN won shale shaker, but also on clients’ existing shale shaker.

As the name implies, the ViST vacuum shaker screen system is including a ViST vacuum unit connecting with a collecting pan that is installed under the last panel shaker screen at the solids discharge port.

The plan is use a hopper with an opening at the bottom where connect to the vacuum unit via a hose. When the drilling cuttings pass through the last panel screen, the remaining large quantity fluids on the cutting would be sucked and get through the shaker screen mesh to the hopper then to the vacuum unit. A buffer tank will be needed.

Why Choose GN ViST?

1. The Vist vacuum shaker screen system is suitable for OBM, WBM and SBM.
2. Recovered drilling fluids increased by 30%~50%, greatly reduces the discharge of drilling fluids. Per the drilling speed, the recovered drilling fluid is around 3 cubic meters per day. And the cost in transporting the waste will be greatly reduced.
3. Saving the cost in placing a High G force drying shaker on site, as the ViST vacuum shaker screen can make the discharged cuttings much dryer. The installation design will not need any extra area onsite.
4. By using the ViST vacuum shaker screen system, the mud engineer can put finer screen on the shaker which and separate the much finer cuttings.

Sorry can not reveal all the principle details, or release a handbook, now it is operating in a few sites, hopefully will be more and more. If you wanna join,  please feel free to contact with GN.

written by desander desilter

Jul 08
For a long time, in the market, if anyone need any centrifugal pumps, they only know Mission Magnum, which is the most popular one in the oilfield, especially for drilling projects. Lots of people only know mission pump for most of the function, for mixing, for transfer, for drilling mud trip back etc. Now another option comes, GN Centrifugal pump, fully repalceable with magnum pumps, with even better material to cast the main parts, casing, impeller, and even the frame, soon will be modularized by casting.
Recently, GN finished the fabrication of a batch solids control equipment ordered by an oilfield service company from Venezuela. More than 10 units drilling mud centrifugal pump are part of the order and already packed waiting for delivery.

GNSB Series Centrifugal pump is used for transferring slurry or mud or water. It can be used as feeding pump for desander, desilter, or used as mixing pump for Jet Mud Mixer. Also it can be used as trip pump, and supercharging pump for rig mud pump. All GN model centrifugal pump use tungsten carbide mechanical seal, with famous brand Bearing. And spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily. Open impeller design that lowers axial thrust loads, and make it easier for installation, repair and maintenance.
Main features of GN pumps:
All spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily
Thick, Strong Concentric casing provides extended life over conventional volute designs. The Concentric design minimizes turbulence and abrasive wear.
Pump casing made from hard ductile iron alloy, increased abrasion resistant capability compared to competitors pump.
Wide open-vane impeller creates lower axial thrust for improved bearing life.
Pump impeller made from hard ductile iron alloy, extended life over competitors design.
Anti-loosening impeller lock bolt to eliminate pump damage in case of improper motor hook-up.
High quality no-adjustment mechanical seal to provide zero leakage and longer operation life.
Replaceable shaft sleeve prevents shaft wear.
All bearings from top brand for reliable operation.
The skid for supporting pump and motor is made from casting instead of welding to provide reliable operation and less vibration in a result to extend the pump and motor life.
Contact with GN if any related inquiries.

written by desander desilter

Jul 01
For quite a while after we developed the vacuum pump, both some client and oureselves have some concern on the high viscosity sludge. So we also reach different client for test, have done some temporary test on one site, but it is too short to judge that this is good enough. Then in the other days, we got some good news from another site, it is well working.
Well so we add it into the vacuum pump video, as below.
Waste vacuum pump, also named as solids transfer pump. It is a pneumatic slurry transfer vacuum pump for liquid, slurry, and solids transfer. With special structure design, it can be used at tough environmental for solids transfer, high working performance and less maintenance. The pump can transfer material with high gravity and high density, solids content max. up to 80%.
So now we are sure that except the drill cuttings, water, it is handling the oil sludge. Any related inquiries, freely let us know.
Other applications
Waste mud and waste solids discharged from shale shaker, mud cleaner and centrifuge transfer
Drilling mud transfer
Waste pit cleaning
Hazardous waste recovery
Oil sludge, tank bottoms residual removal and transfer
Barge holdings and vessel bottom clean out
Bulk tank and silo transfer of material
Sand; Course, fine, conventional and frac sand
Diatomaceous earth

written by desander desilter

Jan 19

Shear pump is the pump that do shearing polymers and clays.  The purpose of this pump is to add improvement of the drilling properties, the polymers and clays need to be sheared in great details before add back of system of drill fluid.  The polymers might jam the strainer if not sheared.  If jamming happen, it will increase the cost of drilling and larger size solids in the drilling will be turn from soft to hard  and will be difficult to clear away. The velocity, or speed of the fluid flow at outside diameter of the rotor are higher than center of the rotor’s velocity.  it is the difference of the velocity that creates shear.

The main design factor is the diameter of the rotor and its turning speed. The distance between the rotor and the stator, the time in the mixer, and the number of the generators are consider factor. Variables include the number of rows of teeth, their angle, and the width of the openings between teeth.

Shear pump is proven for applying the high shear to necessary hydrate polymers and clays.  It reduces the bentonite clay and polymer.  It is also improve loss of fluid and cake filter and build strength of gel.  The low shear rate viscosity holds up solids better.  The dependable seal of shaft adds more convenient in operation and maintenance.

The operation principle adopts mechanical seal sets for no leakage at the stuffing box.  The stainless steel turbine contain nozzles and shear plate and fluid is sheared through the pump.

Base on the demand of the drilling project and goal to achieve, the pump application and installation can be very.  The design of pump, if follow properly, will further improve the performance of the shear pump that shearing polymers and clays.

Please consult GN Solids America LLC’s sale staff on your shear pump inquiry.

Shear_Pump

written by desander desilter

Jan 02

GNSB centrifuge pump manufactured by GN Solids America LLC is the mud feeding machinery for solid control equipment in drilling mud system.

Pump installation

Pump installation location should be near to the source and purposely to shorten the length of the suction period and prevent the suction loss. Pump installed base should be leveled, firm and secured in order to avoid vibration during operation.

Coupling installation

The pump and motor for a long use life depends on the elastic coupling. Available steel straightedge by coupling the up and down or so, with the view straightedge and coupling the garden all parties should contact closely. Namely coupling outside garden parties should be in a straight line to make sure that the motor shaft and pump shaft coaxial angle.

Entrance pipeline installation

Entrance piping shall be in accordance with the pump inlet matching.

Suction piping not allowed to install throttle valve, but can be installed normally open valve to reduce fluid flow disorder. To avoid suction people line produced in steam bubble, the pumping source and between pump from high to low gradually transition. If users need to pump in use suction conditions, use vacuum pump or bottom valve pilot.

Pump at the entrance line must be flat; the length of at least two times the diameter of the inlet line.

Exit line

In order to facilitate pump maintenance, the exit pipeline should be installed normally with open valve.

All line (including population line) must have their own support.

When work condition is unknown or unstable, export in pipeline must be installed throttle valve in order to ensure the pump in the design point operation.

When the pump discharge and pressure equipment connected, the throttle valve and pump must install a check valve to prevent the liquid reflux, otherwise, the return fluid can lead to damage.

centrifugal pump 11

written by desander desilter

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