Month: February 2019

Decanter centrifuge is one of GN’s main products that widely used in all kinds of drilling mud recycling and waste management. This week, GN just finished the fabrication of the variable speed decanter centrifuge ordered by an India drilling contractor.

Almost all the drilling contractors request the equipment used on oilfield to be explosion proof certified for safety consideration. To meet the customers’ requirement on explosion proof standard, GN is now able to provide equipment with motors and control panel certified by China national explosion proof CNEX, IEC Ex and ATEX.

The ordered decanter centrifuge is GN’s model GNLW363C-VFD. The bowl diameter is 14 inch (360mm), bowl length and diameter ratio is around 3, which explains the model of the centrifuge. GN’s 14 inch decanter centrifuge can be used for various purposes due to the VFD design. The typical working speed of this model is 3200RPM, at this speed, the fine solids with size down to 2-5 microns could be separated out without adding additional chemicals. By reducing the speed to around 2000RPM, this unit can be used for barite recovery in solids control system.

The bowl material of this unit is duplex stainless steel 2304 which is much better than SS316L. The centrifugal casting technic makes the bow material has a better distribution feature for better balance.

This unit is equipped with temperature sensor at both bearing seats to inspect the temperature of the bearing. And a vibration sensor is installed on the base for abnormal vibration. All the sensors are used to collect information of centrifuge running and send signal to the VFD control panel. By uploading program into the VFD panel, the panel could monitor the centrifuge and trip off the unit for protection.

The VFD control panel matched to the centrifuge has 3 VFDs for main and back motors of the centrifuge and the feeding pump. Operators could set the running parameters on the HMI screen to adjusting the centrifuge running condition. GN’s VFD panel is positive pressurized explosion proof method, together with the air conditioner, the VFD panel could be used in hazardous are with very high ambient temperature.

Both the decanter centrifuge and control panel are made by GN self. For more information on GN’s decanter centrifuge and other mud recycling equipment, please feel free to contact with GN.

More question,welcome contact GN solids control

GN solids control specializes in the development and manufacture of drilling mud solids control systems and drilling waste treatment equipment. GN solids control is the leading brand of solid control equipment at home and abroad. We have established branches in the US and Russia.

The water-based mud drilling fluid waste-processing system designed and developed by GN solids control is described as follows:

First, the system consists of:

1. Material collection and transmission system

2, cuttings dry processing system

3. Waste mud and wastewater solid-liquid mixture modulation system

4, centrifugal separation and dehydration system

5. Drilling treatment system

6, electronic control system

Water-based drilling fluid waste while drilling treatment system

Water-based drilling fluid waste while drilling treatment system

Second, the system industry characteristics

1, cuttings collection + cuttings dry + curing treatment system

The use of cuttings collection tank, screw conveyor, drill chip dryer, and cutting chip solidification system is beneficial to the treatment of different solid control systems under the condition of a drilling drill to discharge waste cuttings and carrying mud or running pulp. The harmless treatment of the drill cuttings with mud is also conducive to the rapid drying and semi-automation of cuttings treatment. It is easy to realize the safe disposal of cuttings and realize the clean production of drilling.

2, waste mud modulation + centrifugal separation dehydration system

The waste slurry generated by cementing and clearing can be broken and stabilized by a high-efficiency composite type breaker. It realizes fast and efficient solid-liquid separation of waste mud, saves floor space, and can fully realize the rapid gel breaking and stabilization treatment of waste mud.

The mud centrifuge processing module will be separated and dehydrated by adding waste mud such as gel breaking and flocculation. The initial rapid separation of the mud water is achieved, and the effluent is relatively clarified and the mud cake is formed.

3. Drilling sewage air flotation + precision filtration system

The sewage separated by the centrifuge is subjected to flocculation oxidative decolorization and emulsified oil demulsification separation treatment through a first-stage high-efficiency shallow air flotation device. Realize the flocculation separation, oxidative decolorization and petroleum-based removal treatment of small and medium organic matter in drilling wastewater. Then use high-fiber ball filter for high-precision filtration treatment to achieve wastewater reuse or efflux standard treatment.

More question,welcome contact GN solids control

Introduction of GN sohttp://gnsolidscontrol.com/lids control armored mud recovery system

First, the mud recovery system

The GN solids control armored mud recovery system is a mud circulation system that is designed and manufactured by GN Company according to the user’s requirements and according to the customer’s specific requirements for the treated mud. The system utilizes the flocculation dosing system to improve the processing capacity of the centrifuge. The system is powered by the GNG30A-075/GNG30A-075D screw pump. The user can select different dosing positions and dosing types of the flocculation system to make the mud have Different flocculation effects, so that the mud centrifuge achieves the desired satisfactory treatment effect, and the treated particulate matter is excluded from the system by the screw conveyor.

Mud recovery system

Second, the basic performance of the mud recovery system

1. The system has two warehouses: one is the mixing chamber, and the other is the storage chamber after the mud treatment; the whole system can remove most of the solid particles above 2μm after being processed by the centrifuge.

2. The mixing tank is equipped with a heating rod, and the customer can also replace the heating rods of different models and powers according to the needs of use.

3, design mud processing capacity: 5 m3 / h, rated mud processing capacity: 5m3 / h, adapt to the environment: -15 ° ~ 50 °.

4. Adapt to mud viscosity: ≤45 S.

5. Adapt to climatic conditions: rain, snow, fog weather.

6. It can work continuously under rated power.

7. Working height range: It can work normally at altitude ≤ 2500 m, and it can work effectively when the altitude is ≥ 2500 m.

8. All equipments of the system are mature technology new products, and the technical performance meets the relevant requirements of SY/T5612-2007 “Design Specification for Petroleum Drilling Fluid Solid Phase Control Equipment”.

9. The whole machine has reasonable design, compact structure, flexible combination, advanced technology, convenient operation and maintenance, and safe and reliable performance.

10. The system is easy to dispatch, transfer and transport, and can meet the domestic and foreign road transport regulations.

More question,welcome contact GN solids control

GN vertical dehumidifier uses centrifugal force to drain oil-based or synthetic-based drill cuttings. Stainless steel nets separate the “wet” solids and accelerate them to 900rpm. with G power of 420 G or super high speed of 1200 rpm. / min with a G force of 750 G. Liquid is passed through a hole in the grid, while “dry” solids are extracted using an angled flight attached to a cone that rotate somewhat slower than a rotor. The scraper is protected by a coating with carbide tungsten of abrasive solids and provides a long service life. This helps in keeping a constant gap between the scraper and the mesh, which is crucial for proper operation.

For waste management,normally client will use centrifuge together with vertical cutting dryer

Worker Show on GN Vertical Dryer Oil Based Waste Recycling Before Recycling After Recycling, OIL Content: 2.9% water based. So he meets the customer’s requirement to use one system for recycling with a lonely good result, without changing the treatment method for various drilling waste.

More question,welcome contact GN solids control

In the past, CIPPE 2018 in March of this year, GN Solid Management, showed an installation to install an oil sludge set to 1 set. This unit has all the necessary functional device for extracting oil from the oil sludge; it can be used in a small-scale oil sludge purification system or as a demonstration device for the user to check if the GN solution can solve the problem of oil sludge disposal. Many visitors to the GN booth have shown their interest in trying this equipment. One of the visitors contacted GN several days after the show and placed an order for this system. This sludge treatment unit consists of a pre-mix procedure, two-phase separation and three-phase separation. The main technologies used are flushing flushing for demulsifying and separating oil for different phases, such as oil, water and solids. The goal is to recover as much oil as possible and to get as little waste as possible.

Customer feedback suggests that the treatment of waste sludge, installed at GN, provides an effective solution for treating waste oil sludge in a well at the place of its installation. They are considering the possibility of starting further cooperation with GN by placing an order for a GN-type sludge treatment system with a large processing capacity.

The pre-mix procedure applies a pre-mix tank with a heat system, as well as a chemical dosing system. Oil sludge must be with a certain liquidity for easy transportation and mixing with chemicals.

The GN Mini Shale shaker GNZS752 and the 9-inch GNLW224 decantation centrifuge are basic equipment used in two-phase separation mode, this is the main GN product that has been approved with good performance and quality. sludge.

The images here show oil, water and solids discharged from the three-phase separation process. In this step, a disk centrifuge is used to receive the liquid discharged from the decantation centrifuge. When operating at high speeds, a disk centrifuge can effectively recover the oil from the slurry. GN can provide a larger capacity sludge treatment system to help the customer recover the oil and get more benefits. For more information, please feel free to contact GN