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GN Solids Control makes Solids and Sludge vacuum pump to suck and transfer various types of waste material. It is popular to use before GN oil sludge treatment system to suck the oil sludge from the waste pit and feed to the separation system.
Some client want the vacuum pump is strong enough to suck thick sludge.

It is no problem to use GN sludge vacuum pump suck the upper layer oil sludge in the pit. On the upper layer, the liquid content is higher, the sludge is flow. So vacuum pump can suck it. At the bottom, the solids content maybe much high. If the fluidity is poor or unable to flow, the vacuum cannot be sucked.

It is difficult to confirm slush up to what solids content can be evacuated. It also depends on the viscosity and density.
Clients are normally suck it in 2 ways.

1) vacuum pump to suck the liquid sludge at upper layer, and separated by shale shaker, centrifuge, etc… The liquid recovered is dirty. They transfer the dirty liquid to waste pit to dilute the bottom solids waste.

2) they use vacuum pump to suck the liquid sludge at upper layer, use excavator to take the bottom solids, or they use the excavator machine for all the sludge waste.

This video is showing clients use both vacuum pump and excavator machine to suck the sludge and waste.
https://www.gnsolidscontrol.com/video/oil-slurry-and-sludge-treatment-project-in-qinghai-oilfield

This video is showing clients use excavator machine to suck the sludge and waste.
https://www.gnsolidscontrol.com/video/vertical-cuttings-dryer-for-oil-based-drilling-waste-in-ghana.html

Another purpose of clients using GN Solids Control vacuum pump is to remove slush from Skips and drop in a pit. They are collecting the oil slurry in skips and taking them to our site for treatment and disposal. At the site we remove slurry from Skips, and treat them in TDU

In order to control the COVID-19,  all exhibitions in 2020 were canceled or postponed. With more and more people get vaccinated, and with the under-control of COVID-19, China become to normal situation. More and more exhibitions are taken in 2021. After the Water Treatment exhibition in Shanghai in April, GN Solids Control are waiting for the largest petrochemical exhibition. GN Solids Control will attend the 2021 CIPPE Beijing Petroleum Exhibition.

CIPPE Beijing Petroleum Exhibition is the largest exhibition in China for oil and gas field. All major oil company, drilling companies, mud services companies will have their booth on the exhibition. Nearly all major manufacturers and supplier related to oil and gas drilling products will joint the exhibition. And CIPPE Beijing Petroleum Exhibition is also one of the largest oil and gas industry exhibition in the world. It is a good chance to meet and talk with clients and companies in the field.

GN Solids Control will takes their advanced design equipment to the exhibition and show to their clients. And the exhibition is a good chance to share the ideas of each other in oil and gas drilling field. Below list is some equipment GN Solids Control will take for 2022 Beijing CIPPE.

1) Shale shaker screen vacuum unit
2) Big bowl and high speed decanter centrifuge
3) Oil sludge separation system. It is the combination of shale shaker, decanter centrifuge, 3-phase separation centrifuge, chemical dosing unit, etc…
4) Solids and sludge vacuum pump

It is so pity that, as international trip is still limited. Clients outside China will not have the chance to come for the exhibition. In order to let clients who are interested in GN to have the opportunity to know more of GN, GN Solids Control offer online factory visiting. Clients can make appointment with GN sales manager to check and visit GN Solids Control factories through webcam and internet.

A drilling waste dewatering unit and a solidification unit is finished the installation at job site in Africa. The client start to use the dewatering unit and the drilling cuttings solidification unit to treat the waste slurry.

It is a 20ft containerized dewatering unit used at this job site. There is a 3-tank automatic polymer dosing system and a single tank PE tank for liquid chemical. The single PE tank is for manual operation. Client can choose to use both dosing system or either of them.

A 14 inch decanter centrifuge is used together with the chemical dosing system for dewatering treatment. Normally, there will be a shale shaker or high G drying shaker used before decanter centrifuge for reducing the solids content and remove the big size solids. But at this job site, there is no big size particles, and the solids content is small. The client does not need to use shale shaker separater, but use dewatering centrifuge separation directly.

After decanter centrifuge dewatering treatment, the client will use the solidification unit to make the solids waste dry. GN Solids make automatic drill cuttings solidification unit, all auger inside the solidification unit are equipped with VFD control panel. The operators can set up feeding speed before start the solidification unit.

Besides the containerized dewatering dosing system, GN Solids Control offers different sizes of 3-tank automatic polymer dosing system and single tank liquid chemical dosing unit. Clients can choose different models and modular to use it separately, or use more sets for bigger capacity.

GN Solids Control makes various sizes dewatering centrifuge, the bowl size is varying from 9 inch, 14 inch, 18 inch, 22 inch and up to max. 30 inch. And GN Solids Control offers fixed speed control, VFD control and FHD control to various size centrifuges to meet clients’ demands.

GN Solids Control also makes screw conveyor, sludge and solids vacuum pump, vertical cuttings dryer, oil sludge separation unit and waste oil/water treatment unit to meet different applications.

The annual China Environmental Expo was held in Shanghai International Expo Center in April. As the brand of environmental separation and transportation equipment of GN Solids Control, GN Separation brought the latest technology and equipment to participate in the 22nd China Environmental Expo of IE Expo China 2021. GN team just got back from the exhibition.
Below is the the main products of GN Separation taking for the Environmental Expo in Shanghai.

1. A complete set of oily sludge treatment equipment was taken by GN Separation.

GN Solids Control apply heating and chemical washing technology to treat oil sludge and oil base drilling cuttings. The system is used to recover oil and water, and reduce the oil content of solid waste to 2% through heating and chemical hot washing technology. The main equipment includes: high G drying shale shaker, sludge solid-liquid separation decanter centrifuge, three-phase centrifuge separator to get oil, water and soil cakes.

2. Large bowl decanter centrifuge with large rotating drum for sludge dewatering.

The diameter of the large bowl dewatering centrifuge is 30 inch. The large rotating drum decanter centrifuge provides high efficiency and large capacity sludge dewatering solution. It has the advantages of small area, large capacity, high efficiency and high automation.

3.  Solid / sludge vacuum pump

GN Solids Control take the big size skid mounted solids and sludge vacuum pump for the Environmental Expo. The crown energy solid and sludge vacuum pump is a pneumatic vacuum suction and positive pressure pump. The suction capacity is strong and the discharge distance is far. The suction length can up to 50m, and the discharge distance can up to 1000m. It can be used for solid, solid-liquid mixture, sludge and other material transportation. GN sludge and solids vacuum pump is widely used in various fields and different industries. The application of the pump includes but not limited to suction, solid waste transportation, kitchen waste treatment, river dredging and so on.

Centrifuge separator is a relative complex separation equipment. Centrifuge manufacturing have high request on production machines and the design ability of the companies. In this situation, few solids control manufacturer have the capability to design and make centrifuge separators. GN Solids Control is among the few companies who can make full line solids control equipment and drilling waste decanter centrifuge.

Besides solids control equipment, centrifuge is a major separation equipment designed and made by GN Solids Control. Besides the oil field decanter centrifuge to treat drilling fluids and drilling cuttings, oil field oil sludge, GN Solids Control also design and make 2-phase and 3-phase decanter centrifuge and disc centrifuge to treat sewage waste and industry waste water.

This week, GN Solids Control factory is working on the assembly and commissioning of a package of decanter centrifuge. The decanter centrifuge package is customized and made for chemical engineering projects for clients in China. It is a customized decanter centrifuge specially designed for chemical industry separation. The bowl design is much different with the oil field decanter centrifuge and sewage waste centrifuge.

It is a big bowl high speed decanter centrifuge equipped in the industry engineering project. The decanter centrifuge will be used to treat liquid chemicals. Besides oil industry separation and chemical engineering separation, GN Solids Control centrifuge can also be used in below applications:
1) GN Solids Control makes centrifuge separator for sludge dewatering, mud dewatering and suspensions.
2) GN Solids Control can design and make centrifuge to clarifying different types of liquids.
3) GN Solids Control can design and make centrifuge for sludge / mud thickening.
4) GN Solids Control designs and makes 3-phase decanter centrifuge / disc centrifuge to separate 3-hase mixtures, it is mainly two immiscible fluid phases and a solid phase. E.g.: oil, water and soil.
5) GN Solids Control designs and makes centrifuge to classifying solids in a wet suspensions to recover a certain size solids.
6) GN Solids Control designs and makes centrifuge for the separation of solids according to various densities

In April, a full set of drilling cuttings washing system is ready for commissioning for a China client at client’s job site. The drilling cuttings washing system is used to wash and separate oil base drilling cuttings and oil sludge generated from oil and gas drilling, and refinery.

There are 7 treatment modular in this drill cuttings treatment washing system:
1.Pre-treatment: A set of coarse shale shaker is used in this modular for crushing the big rocks and for pre-seperation. It is the pre-treatment before all separation steps.
2.Screening separation modular. There is a high G drying shale shaker used in this step to remove the big size particles.
3.Washing modular with static mixing for mixing and preparing solids and liquid mixture. After that, the liquid mixture can be separated by next step separation equipment.
4.Liquid and Solids separation modular with decanter centrifuge for 2-phase separation. It is the 1st time liquid and solids separation.
5.The 2nd time washing modular with dewatering treatment to remove the fine solids in the liquid.
6.The 2nd time 2-phase decanter centrifuge separation unit for ultra fine solids separation.
7.The liquid recovery modular.

It is a a full function oil based drilling cuttings washing and separation system with a full set of separation and treatment equipment. Below list is the major treatment equipment used in this oil based drill cuttings washing system:
1.A Drum shale shaker is used in the pre-treatment unit to crush the big rocks and remove it.
2.A high G drying shale shaker is used in the screening separation modular to remove the big size particles. It is the most hot sale shaker model GNZS594F which is widely used in oil and gas drilling solids control systems.
3.2 sets of static mixing unit are used in the 2 stage washing modular.
4.A inclined plate clarify is used for soil settle down in the oily liquid, which is discharged from decanter centrifuges.
5.Screw conveyor and belt drive conveyor are used in the system to feed for shaker and for solids discharge from decanter centrifuges and shale shakers.

High G drying shaker and vertical cuttings dryer are the major products for drilling cuttings treatment. This week, some sets of high G drying shaker are vertical cuttings dryer are packed for shipping to an offshore drilling company. The high G drying shaker are installed on a small holding tank. There is a centrifugal pump used as transfer pump to transfer mud out from the small holding tank.

The different is that, high G drying shaker is mainly used to separate water base mud and water base cuttings. While vertical cuttings dryer are used to treat oil base mud and oil base cuttings. In some cases, vertical cuttings dryer can be used to treat water base cuttings. But it is easier to be blocked than high G drying shaker.

High G drying shale shaker utilize API RP13C complied shaker screen. Operators can choose suitable API screen to reach the expected cut point. But vertical cuttings dryer use screen basket. Most supplier can only offer 2 sizes of bigger opening screen baskets. GN Solids Control offers 3 options of screen basket: 0.25mm, 0.35mm and 0.5mm. Operators can choose the suitable size per his job site situation and their performance demands. Generally speaking, the fine opening can get more clean liquid, and it may cause more block than big size screen opening. And the more the feeding flow rate, the wetter in the solids discharge.

Vertical cuttings dryer itself cost higher than high G drying shaker. And its motor power is much higher than high G drying shale shaker. But while be used to treat oil base mud, Vertical cuttings dryer can reduce the oil on the cuttings to 3% ~ 5%. But the high G drying shaker can only reduce oil on cuttings to 10% ~ 15%. There is a much difference.

Normally, water base mud is used at the the early drilling sections, and oil based mud is used at deeper drilling. In this case, some clients will choose both high G drying shaker and vertical cuttings dryer to treat WBM and OBM separately. Clients can also choose neither high G drying shaker or vertical cuttings dryer per their job site situation.

GN Solids Control is a professional manufacturer on drilling mud solids control system and drilling waste management equipment. GN Solids Control has branch companies in Russia with branding name GN Solids Russia, and a branching company in Houston U.S.A with branding name GN Solids America. GN Solids Control also has a sister company GN Solids Separation which is focusing on conveyor and separation equipment.

Although the COVID-19 damage the worldwide economic, with the application and promotion of vaccine, the situation becomes better and better, and our world start to get to normal. The oil field and industry field is also recovered.

Drilling mud mixing tank and drilling mud mixing unit are widely used in various kinds of drilling rigs and engineering works. In the middle of March, GN Solids Control finished the manufacturing of a dual mixing system which is complete with a mixing hopper unit and centrifugal pump. The drilling mud mixing system is prepared for an engineering company in China.

Below is the flow line description of the drilling mud mixing tank unit.

The drilling mud mixing system includes 2 small vertical circular tanks. The jet mud mixing hopper and centrifugal pump is used to transport the drilling mud chemicals to the first tank. Two centrifugal pumps connected in parallel are connected to the tank through manual butterfly valves.
Through the opening and closing of the butterfly valve, any centrifugal pump can be used to transport chemical agents. After the first mud tank is fully stirred, the qualified mud is transported to the second tank through the connecting pipeline, and the mud can be directly used for the drilling rig. In order to ensure uniform mixing of drilling mud, each mud tank is equipped with a mud agitator.

Besides the dual tank mixing system, some sets of jet mud mixing unit are ready for delivery to clients’ job site. The mixing unit is composed of Venturi hopper and centrifugal mixing hopper, which are located on a skid and connected by pipelines. GN Solids Control can also makes EX control panel to complied with different market standard. GN Solids Control has EX certificate to accordance with CNEX, ATEX and IECEX.

For any questions or inquires, clients can contact GN engineering team to get solution.

As the oil sludge treatment is a new trend. It means a new business scope for many companies. Many clients do not have much experience before they run GN waste management plant.

In order to ensure they have enough knowledge to operate the unit and reach good performance, GN Solids Control will send engineer to job site to help for the first time commissioning. GN engineer will support to test the treatment unit with real oil sludge and to train their stuff about how to adjust the system based on the material situation in order to reach a good performance. And GN engineer will give training about normal maintenance and trouble shooting if requested by clients.

Recently, GN Solids Control engineers just finished the commissioning job of an oil sludge treatment plant. The treatment plant is for a China domestic client which is used in China. It is a middle size oil sludge treatment system with 14inch centrifuges to treat oil contaminated wastes. And it is also the most popular size oil sludge treatment plant.

It is a complete oil sludge treatment plant for 2-phase and 3-phase separation. Below is the major separation plant of the oil sludge treatment plant for this project:

1) The 1st modular of the oil sludge treatment plant is premixing and heating tank package. The solids and liquid inside the raw oil sludge is not equal. Or some time, the solids control is too much high. The first stage is to prepare the sludge and make it suitable for separation. The processes which maybe be used in this stage are: mixing, dilution, heating, chemical dosing. Clients and chose 1 or more process based on the material situation.

2) The 2nd modular is drying shaker tank unit for coarse separation. The drying shaker is customized with rubber sealing cover and steam nozzle pipelines for heating. Clients choose the right API shaker screen to remove particles above a certain sizes.

3) The 3rd modular is decanter centrifuge C/W a holding tank for 2-phase separation.

4) The 4th modular is 3-phase centrifuge C/W holding tanks

5) The 5th modular is containerized dosing system to supply chemicals for the whole treatment process.

Vertical cuttings dryer (vertical centrifuge) and decanter centrifuge are major separation equipment for drilling mud and drilling cuttings treatment. A set of vertical cuttings dryer can decanter centrifuge are ready for shipment in GN Solids Control factory. They will be shipped to an international drilling company for waste management.

Vertical cuttings dryer in this project is GN latest model GNCD930E-VFD with advanced design. Mostly, fixed speed control is used for vertical cuttings dryer. For this project, client choose VFD control panel for the vertical cuttings dryer to control the rotation speed and G force.

Vertical cuttings dryer is also called as vortex centrifuge or vertical centrifuge. It is the major separation equipment to treat oil base mud and oil base cuttings. It can used to treat drilling cuttings discharged from shale shaker, desander and desilter. But it cannot treat drilling cuttings from decanter centrifuge. As decanter centrifuge is used for fine solids separation. GN Solids Control offers 3 options for screen basket opening of vertical cuttings dryer: 0.25mm, 0.35mm and 0.5mm. The soil cake from decanter centrifuge is too fine. They will all go through the screen basket. No solids can be removed while treat decanter centrifuge solids.

As the screen opening of vertical cuttings dryer is big opening. The solids control and mud weight will be high for the mud recovered from vertical cuttings dryer. In order to reduce the mud weight for reuse, decanter centrifuge will be used after decanter centrifuge for fine solids separation. Cut point of high speed decanter centrifuge is 2~5 microns. After centrifuge separation, the mud can be qualified for reuse.

Decanter centrifuge used in this project for the international drilling company is a big bowl model GNLW553C-VFD. It is a big bowl big volume centrifuge with VFD control panel for variable speed control. The big bowl centrifuge is usually used for waste management.