Drilling mud Equipment

GN Solids Control applied the technology of heating washing and chemical enhancing to treat oil sludge, oil slurry, waste oil and water.

Heating system of GN oil sludge separation system

GN Solids Control equips heating pipes inside mud tanks of the oil sludge separation system, and heating pipes and nozzles on coarse separation shale shaker. Clients can choose electrical oil heating system or electrical steam heating system for the application.

As the normal temperature is high enough. The function of heating is to reduce the viscosity of the oil sludge. Another reason of heating is to maximize the performance of chemical agents. The most suitable temperature for chemicals is around 70C degree. In some countries of Middle east, heating system is not necessary.

Chemical agents used for oil sludge and dewatering treatment

There are normally 3 types of chemicals will be used for oil sludge treatment. Clients can choose to use 1 or 2 or 3 types of chemicals based on the sludge situation and separation demands.
1) Sludge separating agent or surfactant: If the oil sludge viscosity is till high and difficult to separate after heating, sludge separating agent can be dosed before separation. The function is to improve the separation performance of the oil sludge.

2) Demulsifier: After sludge separation agent, demulsifier can be added to make the oil sludge emuisified, to remove the oil and water in the emulsified oil-water mixture.

3) Flocculant (PAM) or coagulant (PAC) : for ultra fine solids separation before enter into decanter centrifuge and disc centrifuge. If you already dosed demulsifier, you should consider and calculate carefully to see you add PAM / PAC or not. As demulsifier is to make oil, water and solids separated. But PAM / PAC is for flocculation. PAM / PAC will reduce the demuisifier performance and to make the oil, water and soil mixture again.

In some projects, acid or alkali will be dosed before separation to balance the PH. If you need to add acid or alkali, it is normally added before other chemical agents. The suitable PH can improve separation performance in some degree, but not much.

Oil and gas drilling, refinery, and crude oil production will all generate a large number of oil sludge waste.The oil sludge waste generated from drilling, refinery and crude oil production have complex composition, which may cause serious pollution to the surrounding environment and wasted resources. As this reasons, it is essential and necessary to treat the oil sludge waste, to reduce and minimize the waste in order to protect our environment.

GN Solids Control utilizes heating washing technology with chemical enhancing system to treat the oil sludge from oil and gas drilling and refineries. 2-phase / 3-phase decanter centrifuge and 2-phase / 3-phase disc centrifuge are used in GN oil sludge treatment system.  The major function of GN oil sludge treatment system is to reduce the solids and liquid waste volume before enter into superior processing equipment.

The water recovered from GN oil sludge system can be reused in the separation system, or use the water for injection. But the water cannot be discharged into environment. They need further slurry separation treatment before discharge. The recovered oil can be sold to refinery companies. The solids can be used as construction field material, like to to make bricks for road construction.

With suitable chemical dosing, below is the major parameters of soil, oil and water after separation from GN oil sludge separation system:

The Oil on Solids Discharged from Decanter Centrifuge is around 1-3%. The solids waste volume is greatly reduced, clients can send the solids waste to TDU company to treat. The cost will be much lower than you buy a TDU. As the cost of TDU and its operation cost is greatly high. Besides TUD, the clients can also use Biodegradation technology to further reduce OOC to 0.5% or less.

Recovery Oil from 3 phase centrifuge BS&W is around 2-3%. Clients can sell it to refinery company.

Oil Content in recovery water from 3 phase centrifuge is 1000-3000PPM. The recovered water can be reused for premixing tank inside the treatment system.
You can add a Water Treatment system to reach 50-100PPM (Oil Content, Water after treatment unit). Or you send the water to slurry treatment company to treat for you.

Chinese Lunar New Year holiday is coming in Feb. There weeks, all workshops of GN Solids Control are works with more shifts in order to finish all orders before the big holiday. A full package drilling mud solids control system will be ready soon and dispatch to sea port next week to catch the vessel.

The full package solid control system is designed and made for a European client. The client cooperated with GN Solids Control for many years. It is not the 1rst mud system the clients bought from GN. They have many similar size drilling mud system from GN Solids Control.

Below is the major equipment list of the full package drilling mud solids control system:

1) Shale Shaker. It is the 1rst stage solids control equipment for drilling mud system, and it is the major separation equipment in a drilling mud treatment system. There are 2 sets linear motion shale shaker in the mud system. Some clients will order an extra shale shaker as backup. The shale shaker model is GNZS594F. It is a 4-panel shale shaker. And it is the most hot sale shaker model from GN Solids Control.

2) Mud cleaner. It is normally 1 mud cleaner in a full package mud cleaning system. And in some jobsite, clients will use more shale shaker to replace mud cleaner. It is also called as 3-in-1 cleaner. It is the combination of a shale shaker, desander separator and desilter separator.

3) Lower/middle speed Decanter centrifuge. The model is GNLW452D. It is a 18inch bowl size middle speed centrifuge which is used for barite recovering.

4) High speed decanter centrifuge. After low speed centrifuge, there is a high speed centrifuge GNLW363C in the system for fine solids separation. As after some circulations, there will be more and more ultra fine solids inside the drilling mud, the drilling mud is weighted. High speed centrifuge will be used in this condition to reduce the mud weight.

5) Centrifugal pump. There are 6 centrifugal pumps inside the system for different functions: a desander feed pump, a desilter feed pump, 2 mixing pumps, and supercharging pump for drilling rig mud pump.

GN Solids Control makes various separation productions for the treatment of oil contaminated waste during drilling, like oil sludge and contaminated soil. GN Solids Control is also capable to make various sizes of dewatering centrifuges for oily sludge and industry waste water treatment.

A dewatering centrifuge unit will be delivered to a Southeast Asia client for Municipal Sewage treatment. The dewatering centrifuge package is including a high speed decanter centrifuge unit and a VFD control panel for the centrifuge.

The dewatering decanter centrifuge is with big bowl and high speed, high G force. It is special designed to suit for municipal sewage treatment. The bowl diamater of the dewatering centrifuge is up to 450mm (18 inch), and the bowl length is up to 1890mm (74.5 inch). The bowl length and bowl diameter ratio is up to 4.2 to clarify the liquid and further drying the solids phase. The max. Speed of the 18 inch dewatering centrifuge is 4000RPM, which can generate max. G force 4032G.

The 18 inch dewatering centrifuge is a dual motor unit. According to different material situation, clients have 2 options on the motors power. In condition of heavy mud and high viscosity, 45kw main motor drive and 11kw back motor drive will be used. But if the slurry is low viscosity and light weight, less solids content, clients can choose 37kw main motor drive and 7.5kw back motor drive. It saves cost and also save power. Like for municipal sewage treatment, mostly the liquid is not weight, and less viscosity, 37kw main motor drive and 7.5kw back motor drive can be used.

For the same bowl size 18inch decanter centrifuge, GN Solids Control has different design to cater for the slurry situation. Before order, GN centrifuge engineer will communicate more about the raw material situation and clients’ request in order to offer the clients a most suitable proposal.

VFD Control Panel of the decanter centrifuge is made from stainless steel for excellent corrosion resistance and long service life. The VFD control panel is with PLC and touch screen for smart control.

A customized drilling mud processing system is is ready for shipment at GN Solids Control Beijing factory. It mud cleaning system is composted of a mud cleaner, a mixing hopper, and a centrifugal pump for mud mixing and transfer.
The drilling mud cleaning and mixing system is designed and made by client’s request to suit his drilling mud situation. Normally, mud cleaner is equipped after a pre-seperation shale shaker. But in this mud cleaning system, the first separation equipment is mud cleaner.

The reason why the client do not use shale shaker is that, they said the solids content in the mud is not much high. And mostly are fine solids. In this case, the drilling mud can be separated by mud cleaner directly. It is to save cost. As once the shale shaker is running, clients need to replace shaker screen periodically. It is a continue cost for operation. While delete the shale shaker, the system can meet client’s request. It can save the cost of shale shaker, and furthermore, the can reduce wearing spare parts shaker screen cost.

But if the solids content is high, or the particle side is big, which is over the hydracyclone separation point and its mud handing capacity, it is better to use a shale shaker before the mud cleaner. At one hand, the shale shaker can reduce the flow rate which feed to the mud cleaner. At another hand, after the shale shaker separation, the solids content will be reduced, and the big size particle are total removed based on the shaker screen API size and cut point. It can increase the hydraucyclone separation efficient, and also to avoid the fast wear out the hydraucyclones. 10 inch desander cone and 4 inch desilter cone are the most popular cyclone sizes used for drilling fluids separation system. Operator can choose the to use only desander cone or desilter cone, or both based on the mud condition and their budgetary. Desander and / or desilter cone quality depends on the handling capacity of the whole system.

Feeding pump for mud cleaner is centrifugal pump. The centrifugal feed pump is located on tank slope for compact design and for maximize the total tank usable volume.

After the mud recycling and mixing system, a drilling mud decanter centrifuge is used for fine solids separation. As there will be more and more fine and ultra fine solids after some circulation of the system. Decanter centrifuge will be used to reduce the mud weight.

The TBM construction and Pipe Jacking construction drilling will generate a lot of waste water slurry which contains big percentage of sand and stones. In order to accordance with environment protection regulations and save water, project operators have to separate the TBM drilling mud, to reduce the waste and reuse the water.

GN Solids Control can design and make full package of waste water slurry separation plants. The major separation equipment in GN slurry separation plant includes: shale shaker, desander, desilter, bottom drying shaker, etc… And there are accessory items for a one-stop turn-key solution: centrifugal pump for feeding desander / desilter mud cleaner, mud tank, electrical control system, etc.

The TBM construction and Pipe Jacking construction drilling are often took in urban areas, . In this case, the TBM drilling slurry separation usually requires compact design to suit for small working area. And the TBM drilling slurry separation need to reach high treatment efficiency to treat big volume slurry. GN Solids Control TBM Slurry Separation Plant is specially designed to meet the above demands. GN Solids Control TBM and Pipe Jacking drilling slurry separation system is with a very compact foundation by optimal designing. The TBM and pipe Jacking slurry treating system can work at different height levels.

In order to meet the different requirements of different clients and different projects, clients can choose more than a set GN Solids Control TBM Slurry Separation Plant and connect them by pipelines to use them as a big flow rate handling capacity. Plus, the combination of standard modular is for fast and easy assembly. Clients can choose different modules and select the quality they need to reach the flow rate they want to reach. GN Solids Control TMB and Pipe Jacking Slurry Separation Plant to move conveniently among different work sites.

GN Solids Control TBM and Pile Jacking Slurry Separation Plant advantages:
1) Full function compact package design for One -stop Turnkey Solutions
2) Modular, pre-assembled and small footprint units for easy and fast transportation from one location to another
3) 5-Phase Separation System for finer solids separation and to get more clear water

A set of GNMS-1000D mud recycling system and a 18 inch decanter centrifuge is ready for shipment. They will be shipped for a trenchless drilling project. GNMS-1000D is a Mud Treating & Recycling System. The mud cleaning system is designed and manufactured according to the needs and requirements of customers. GNMS-1000D mud recycling system is specially designed to treat the drilling mud in mining industry, piling machine, HDD (horizontal directional drilling) and other trenchless drilling activities. The treatment capacity of GNMS-1000D mud recyling system and cleaning system is up to 240m³/h.

A double deck shale shaker is used in the GNMS-1000D mud cleaning system. There are 2 sets of 10 inch desander cone assembly on top of the double deck shale shaker to use as a mud cleaner. The advantages of a single deck mud cleaner is that, it has the function of both shale shaker and cleaner and the footprint if small while with the compact design. The dirty mud will be fed to bottom shaker deck, which is mounted coarse shaker screen. The centrifugal pump is located on the tank slope to feed for the desander cleaner. Besides GNMS-1000D mud recycling system, GN Solids Control makes other capacity drilling mud cleaning system for trenchless drilling rigs: D Series Mud Recycling Models: 1) GNMS-200D mud cleaning system with handling Capacity: 200GPM, 50m3/h 2) GNMS-500D mud cleaning system with handling Capacity: 500GPM, 120m3/h 3) GNMS-1000D mud cleaning system with handling Capacity: 1000GPM, 240m3/h 4) Other models can be customized according to clients special request. GNLW452 is an economic standard decanter centrifuge. It is a 18 inch big bowl centrifuge. But the bowl diameter and bowl length ration is only 2. And the max. Bowl speed of the GNLW452 centrifuge is 2200RPM. It is a single motor decanter centrifuge with fixed speed control. VFD control is available if requested by clients. The centrifuge is widely used for trenchless drilling mud treatment, and oil & gas drilling mud barite recovery.

500GPM and 1000GPM are the most popular size drilling rig mud recycling system for Horizontal directional drilling, water well drilling, Coal bed methane drilling, and other trenchless drilling rigs.
500GPM mud recycling system is mostly a compact 1-tank system complete with separation equipment and mixing unit for compact design and easy movement.

Regarding 1000GPM mud system system, clients can choose 1-tank system or 2-tank system. 3-shaker mud recycling system and 4-shaker mud recycling system are the most popular proposal. 3-shake mud recycling system means 2 shale shakers plus a mud cleaner (3-1 mud cleaner, desander mud cleaner, or desilter mud cleaner).

Equipment list for 1000GPM mud system is normally as below:

1) At least 2 sets shale shaker. 4-panel or 3-panel shale shaker model are both fine. Single shale shaker model is min. 500GPM capacity. So for 2 shale shakers the handling capacity can reach to 1000GPM minimize.

2) 1 set of mud cleaner c/w shale shaker, desander and desilter, mud capacity is at least 1000GPM. It is the full functional and with compact design. As a 3-1 mud cleaner can save footprint. If clients want to reach a better separation performance, they can also choose a separate desander mud cleaner, or a desilter mud cleaner. Regarding the desander mud cleaner and desilter mud cleaner, clients can choose to equip with the same under flow shale shaker as the first stage shale shaker, or a mini size shale shaker with 2 screen panels. Clients can also choose a small desander or desander without shale shaker.

3) Feeding centrifugal pump for mud cleaner is 45kw or 55kw. The feeding pump can be located on tank skid or tank slope.

4) Mixing unit is C/W 6 inch mixing hopper. Mixing pump can be 45kw or 55kw. It is better to be the same model with mud cleaner feeding pump.

For 3-shaker system, all separation equipment and the mixing unit can be located on the same mud tank for company design. But if it is 4-shaker mud system, the first tank is recycling tank with separation equipment, the next tank is mixing tank.

As Chinese new year holiday is coming in Feb. 2021. Only 1 month left. New Year is the most important big day for all Chinese people. It will cause at least 3 weeks delay on manufacturing schedule. Everything will be very slow during the whole Feb. Although it is deeper winter in China, the weather is frozen and cold. In order to not delay clients projects and delivery orders on time, all workers of GN Solids Control are working hard. Below are some of the orders will be delivered this week.

1) Mud recovery system GNMS-1000D and GNMS-500D. GNMS-1000D is a desanding plant C/W double deck shale shaker and 2×10inchdesander cleaner with capacity 1000GPM for piling and micro tunneling projects. The GNMS-500D is a desanding plant C/W double deck shale shaker and 1×10inch desander cleaner with capacity 500GPM for piling and micro tunneling projects. The layout of GNMS-1000D and GNMS-500D are very similar.

2) Mud dewatering centrifuge GNLW554E-VFD. It is a 18 inch big bowl decanter centrifuge mainly used for dewatering treatment and oil slurry. Clients can choose VFD control or FHD control for the centrifuge. It is normally used together with chemical dosing unit.

3) Slurry mixing and storage tank system with a separate Jet mud mixing device. It is a 3-tank mud mixing and storage system. The mixing is ready for shipment. The mixing unit is complete with a separate jet mud mixing unit. Each tank is equipped with 2 mud agitator. All mud tanks are connected for mud transfer between each other. Each mud tank is the same length and width 20ft ISO sea freight containers. And each corner of the tank are equipped with container locking device.

Clients can also choose 40ft container size mud tank. It is easy for inland shipment. For international sea freight, GN Solids Control will make a smaller size mud tank for loading into containers.

GNSB Series Centrifugal pump is a very common device used at drilling mud solids control system. GNSB Series Centrifugal pump can be used for oil field drilling mud system, HDD and CBM drilling mud recycling system, piling and micro tunneling desanding plant. GN Solids Control is a professional manufacturer of centrifugal pump in China.

GN Solids Control makes and supply centrifugal pump for solids control system. There is a wide range of applications of centrifugal pump in various applications drilling mud system. Below are some of the applications we normal use.

1. GNSB Series Centrifugal pump can be used as trip pump in the trip tank of the oil and gas drilling mud system. Trip tank is normally the first tank compartment inside drilling mud solids control system. The tank volume of trip tank is not big. It can be a separate smaller size tank other other tanks in the solids control system. It can also a compartment divided from shale shaker tank. Centrifugal pump size 3×2 or 4×3 are mostly used as trip tank trip pump.

2. GNSB Series Centrifugal pump can be used as feed pump for desander, desilter, mud cleaner. The pump transfer capacity should be matching the handling capacity of desander, desilter and mud cleaner. It can be a little big higher than the separation equipment, but it cannot be too much high. And the centrifugal pump transfer capacity cannot be lower than the separation equipment.

3. GNSB Series Centrifugal pump can be used as mixing pump of jet mud mixer and mixing unit. While add a T-pipe at the outlet of the mixing pump, the same pump can also be used as transfer pump.

4. GNSB Series Centrifugal pump can be used as transfer pump to transfer drilling mud or other slurries from one tank to another, or from one location to another.

5. GNSB Series Centrifugal pump can be used as suction or supercharging pump for drilling rig mud pump.

All GN model centrifugal pump use tungsten carbide mechanical seal, with international 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.