The well drilling fluid is used to balance the formation pressure, transfer power, remove cuttings and carry them to the surface, and stabilize the wellbore by physical and chemical means.
In the over or under compacted formation, or the easily dispersed and expansive formation, the directional well fluid becomes more challenging, and special measures are required to ensure that the well fluid performance is sufficient to deal with these situations. The well fluid prepared with viscosity increasing agent, thinner, weighting material and special additive can meet the special needs of the site. At the same time, in order to reuse the well fluid, the well fluid cannot be over diluted, and the cuttings must be removed from the well fluid. This chapter mainly describes the importance of mixing to the well fluid circulation system. This chapter also details the adverse effects of incorrect mixing, anti floating and mixing on the well fluid. In addition to mixing, mixing, shearing, ingredients and chemical additives are also important for well fluids. When the size and installation can make additives and chemicals with maximum speed and minimum problems.

The function of the surface well fluid system is to allow the well fluid to be maintained and treated before being tied into the well. This can be achieved by effectively using solid control equipment to remove unwanted solids, and at the same time, recycle well fluid as much as possible. After the solid phase is removed, the next step is to quickly and completely mix the chemical additives and well fluid materials. Full release and mixing is very necessary for solid removal and maintenance. Most of the wrong well fluids must be mixed with equipment to avoid solids in the floating tank, so as to keep the well fluid composition uniform. There are two kinds of equipment that can achieve this goal: mechanical release mixer and well fluid gun
GN Solids Control was one manufacture that can produce the whole solids control equipment include mud agitator and mud gun, if you have need on these equipment, welcome to contact us.

We are building one oil sludge washing and separation system for Uzbekistan customer. This system will be used to process the sludge with large oil and less water. This kind material is the most difficult to treat in waste management industry. Because most cases, the oil and solids ware hard to separate away. To solve this issue, GN equipped one washing modular in the system to flushing the stuck sludge first.

The sludge flushing will reduce the solids content of material and mix with large water ,improve the flowability of material. Meanwhile, this modular will also heat the slurry. As we all know the oil will easy to separate away with solids after raising the material. We will also add demulsifier to this slurry, which will help to transfer the Emulsified oil separate away with water. After that , we will pump these slurry into shale shaker to separate out most big size particle; And then pump into 2 phase Decanter cent to reduce solids content in discharged liquid from shaker, finally we these oil and water mixture will feed into 3 phase disc centrifuge to complete the finally oil water separation ,and also remove less solids.
In this system, we recommend our GNZS752 shale shaker, and GNLW553 Decanter centrifuge and also GNSX 520 disc centrifuge. All these equipment was manufactured by our own. The shale shaker and decanter centrifuge have been used in more than 2000 projects in the global market. Especially in the oil gas industry, we provide lots shaker and decanter centrifuge for the drilling mud treatment . And also the oil sludge treatment system for drill cutting process.

This system is high efficiency with treatment about 15cube meter per hour, and people can recycle the oil for reuse, and lower the pollution of oil sludge. GN also can provide system with capacity of 2m3/hour and 5 m3/hour. If your project have demanded on this system, please feel fee to contact us.

In waste treatment industry ,oil sludge is one of the material that most hard to treatment. As usually, these kind project required large treatment capacity, and also need 3 phase separation water oil and solids. For most treatment technology ,how to separate away oil with soil, this is difficult. We are making one oil sludge washing and Sep system for our Uzbekistan customer. This oil sludge treatment system include one different modular: air compressor ,air storage tank ,pre-heat modular ,shale shaker modular ,Decanter centrifuge ,and 3 phase separation modular ,and chemical dosing unit modular.

In this system, first step is flushing the oil sludge with clean water in the premixed tank ,add water to reduce the solids content of material. Meanwhile, the system will heat these material. With the slurry temperature raising ,the oil will be easy to leave off the soil. In this step, we can get the mixture of solids,water and oil, all of them are not mutually soluble. These slurry will feed into shale shaker modular first. Shale shaker will remove out big particle, and the size moved out depends on the selected mesh of shaker screen. After treatment by shale shaker, we will get the mixture of water, oil and solids that solids content is about 20%. We till need to reduce the solids content and then we can move forward the last oil water solids the 3 phase separation. This 20% solids content material will be pumped Decanter centrifuge, under the separation force generated thorough high rotated speed, most solids will be removed out. After that will can pump the discharged liquid from Decanter centrifuge into disc centrifuge .
Disc centrifuge can generate the G force about 5000G. Even the very tiny solids can be separated out. Oil and water also will separate away under this high separation force. After that,we can finally receive the oil,water and solids.

After 3 months manufacture, GN solids control finally exported this 5 sets oil sludge treatment system. The Nigeria client arranged the third party to inspect all equipment before shipping, and all products reached client requirement and comply with API standard.

These 5 sets system main include the following equipment:
Vertical cutting dryer with jack-up support.
The vertical cutting dryer is the core machine of the system, which is used to dewater the drill cutting, and recycle the drilling mud involved the drill cutting discharged from shale shaker. This machine model is GNCD930. As usually, it can satisfied the using of 2000HP rig machine
10 sets Decanter centrifuge and skid
The 5 units centrifuge was used to treat the drilling mud ,which is one partial of solids control system. The other 5 units are used to treat the discharged liquid from vertical cutting dryer. All these 10 units centrifuge are the most featured and popular model GNLW363D. 5 units are VFD control and the other 5 units are fixed speed centrifuge.

The other auxiliary equipment of 5 units rig machine.
These auxiliary equipment include 40 units GNSC screw conveyor. Partial of them used to feeding sludge to vertical dryer. And the other used to transfer the discharged solids from decanter centrifuge. These screw conveyor also equipment speed adjustable function. After that, they also purchased 15 units screw pump, 5 of them used to flush vertical cutting dryer, and 10 unit used to feed slurry to decanter centrifuge.

This Nigeria customer is one of the big petroleum develop company. They have their own petroleum field and also drilling team, and mud company. We cooperate since 2012, and purchase from GN every year. We are really appreciate for client trust that they purchased this 5 sets system. We will continue to provide the best quality equipment to customer.

As we all know GN is one of the most famous brand on oil gas industry for the solids control equipment manufacture and design. GN was funded in 2005 and built his own branch in Houston America. As one of the most popular manufacture, GN exported his equipment to more than 76 countries and served more than 20000 project in all over the world. We manufacture them with US standard, but our equipment do have very competitive price since we made them in China. This is our advantage to get the material with low cost.

This week we delivered several units mud cleaner to customer for offshore drilling project. Different with onshore drilling ,offshore drilling has more strictly requirement to the quality ,because the drilling platform or drilling fleet must keep the safety and prevent any accident as much as possible. That means the normal manufacture is not accepted by offshore project. For example, offshore project always require DNC certification of lifting eye. The manufacture must has the professional to test the lifting eyes and then we can apply for the certificate. With more than 17 years experience, GN accumulate lots experience of manufacture and design. And our staff are very familiar with the requirement to offshore drilling requirement. All these guaranteed we can provide the equipment to totally satisfied with client requirement.

Mud cleaner is the most featured solids control equipment of GN. We have several models according to the treating capacity. For this time it is GNLW703-2S12N model ,which has 2 unis 10 inch centrifuge plus 12 units 4 inch centrifuge, and also equipped the bottom shaker to dryer the solids. This equipment can remove out particle bigger than 20 um. Operator can use it as a desander, desilter or shale shaker through control the inlet valve of cyclone.
GN has the whole production of solids control equipment , and also good at provide customized system, if you have demanded on them, welcome to contact us to get more information.

The application of shale shaker develops fastest in the field of non excavation drilling. Many of the above types of vibrating screens together with hydrocyclones constitute drilling fluid cleaning equipment. The micro tunnel project of tunnel is widely used in Europe and is also increasingly used in the United States. Micro tunnel drilling is a kind of horizontal drilling with large borehole (from 27 to 10 feet), in which pipes are laid while drilling. This practice is most typical when laying or replacing water pipes and sewage pipes under urban buildings and traffic arteries.

In order to prepare for construction, large-diameter vertical boreholes or caissons shall be dug first, so that drilling equipment and hydraulic press can be installed at a certain depth. The open caisson is slightly lower than the equipment level, so a sedimentation tank can be formed when the drilling fluid returns, which is conducive to removing the solid phase. The drilling fluid pumped back to the surface is pumped into a simple solid phase removal system through a submersible pump, which is mainly composed of a vibrating screen and a drilling fluid cleaner installed on a small storage tank.

In order to lay pipelines on the river bottom for river crossing, it is necessary to drill a small-sized borehole on the riverbed. When the borehole with a larger diameter for laying the pipeline is used for back reaming, the pipeline is connected to the drilling tool and dragged back under the river. When laying large-sized pipes, a solid solid control system must be established with composite vibrating screen, desander, desilter, centrifuge, etc. The drilling fluid cleaning equipment reduces the waste of drilling fluid.
When laying pipes and cables across the road, it is often required to pass under the road. When drilling at the roadside, the traffic shall not be affected and the road surface shall not be damaged. This drilling size is usually small to avoid the use of solid phase removal equipment. If the drilling fluid accumulation causes impact, the drilling size is too large, a shale shaker or a drilling fluid cleaner will be used.
Fiber optic cable fiber optic cable laying does not need to drill a large borehole. However, since the construction is often carried out in residential and commercial areas, the drilling fluid and drilling solid phase must be loaded into special devices. At this time, the solid control system only includes a small storage tank, a pump box and a small shale shaker.

Drilling fluid is the circulating fluid used in the drilling process. It is a mixture of liquid, solid and chemical medicines . For a long time in the past, drilling fluid was commonly called “mud” at home and abroad, which is not accurate. Solids particles in drilling fluid can be divided into harmful solid phase and useful solid phase. Drill cuttings are the most harmful solid phase in drilling fluid, which will affect the physical properties of drilling fluid in the whole process of drilling, and increase the density, viscosity, dynamic shear force, water loss, mud cake, abrasiveness, viscosity and flow resistance of drilling fluid. In the process of well drilling, drill cuttings will also damage the oil and gas reservoir, reduce the penetration rate, increase the torque of rotary table, and cause the rig to be stuck during tripping, resulting in lost circulation, blowout and other downhole complex conditions. At the same time, the cuttings in the cobalt well fluid will cause serious wear to the circulation system.
So the drilling mud is very import to keep the drilling success, and improve work efficiency. However drilling mud is very expensive material. Recycle them and use again as much as possible are very necessary. GN Solids Control are specially design and manufacture different kinds solids control equipment and system. we have more than 15 years experience. Shale shaker, mud cleaner,decanter centrifuge ,and also shaker screen. Every year, we exported lots set system to abroad and also China inland. Till not, our equipment has served more than 20000 project and customer from 76 countries.GN get the reputation from the market, and we also built long terms relationship with many client.

Manufactured in china with North America standard, and serve all global customer. We had built our own high efficient system to provide quick and high quality service to customer to help them creating value and save money. If your project have demand on solids control equipment, welcome to contact us.

Decanter centrifuge is one kind equipment that utilize centrifuge force to separate off the solids and liquid. Through the high rotated speed, the material inside centrifuge bowl will bear vary generated force because the different density. High density solids will settle down the bottom of centrifuge ,and the small density liquid will be on the upper layer, then reach the solids liquid separation. To use centrifuge to separate solids liquid, the solids density must higher than liquid, and the solids can not melt to liquid. This is the basic principle for centrifuge application.
GN separation with more than 15 years development, we accumulate large experience on the centrifuge manufacture and design. As begin of company funded, we are specially provide centrifuge to oil gas industry for the drilling mud treatment.Till now, we had developed the whole series Decanter centrifuge for different application with different treating capacity. From 9 inch centrifuge to 30 inch centrifuge, treating capacity from 0.5cube meter per hour to 120 cube meter per hour, from 2 phase separation to 3 phase separation, and low speed Decanter centrifuge to middle speed disc centrifuge and now the high speed tubular centrifuge. We can provide different solution for client project.

Centrifuge has very widely application, such as the mining industry, centrifuge can treat the mining slurry and also the trailing sludge, Decanter centrifuge also can dewatering the coal. Big treating capacity centrifuge also are usually for water treatment. Environment, pharmacy etc all these industry can see the centrifuge using. GN separation provide more than 400 units centrifuge to different country include series models to different industry. We also built long terms cooperation relationship with some customer and have agency in some countries. We have very competitive price and also the stable quality, win the reputation from global market. If you have demanded on these centrifuge welcome to contact us. We will be pleased to provide technical support

The High G shale shaker is a linear vibrating screen, which is used to minimize the absorbed liquid phase of the drilling cuttings discharged from the main vibrating screen and the hydrocyclone, and return the treated liquid phase to the circulation system. The drying screen shall be used in closed-circuit circulation system or in places where it is required to reduce the liquid phase content of drilling wastes. There are chemical and mechanical methods to reduce the liquid phase discharge. The chemical method is to use the dehydration reaction system and the mechanical method is to use the linear vibrating screen. The two methods can be used alone or in combination. The dry vibrating screen is used to dehydrate the drill cuttings separated from other solid-phase separation equipment. These drill cuttings are usually discharged from the main vibrating screen or the hydrocyclone in the drilling fluid circulation system. The dryer recovers and processes the liquid phase in these drill cuttings. Since flocculation, coalescence and other action units are usually used in the dehydration system, the recovered liquid phase contains colloidal particles, Therefore, the influence of these colloidal particles on the performance of cobalt well fluid must be considered.

GN high G shale shaker was designed for drilling waste treatment, which used 4panels shaker screen, the G force can reach 8.5 Gravity. GN high G shale shaker has the good ability to recycling the mud from the drill cutting. It convenient for client to reduce the cost of drill cutting treatment, and the recycled mud also down the cost for drilling mud. This High G shaker used Italy brand vibrator, and the whole machine body is reinforce design, that guarantee the long lifetime.
Our high G shale shaker had sold to more than 20 countries, and get the good feedback from customer. The G force is adjustable, which means client can down the G force and used it as normal shaker. If your project have demanded on this equipment, welcome to contact us.

As we all know the drilling mud is very important for petroleum well drilling. As usual, the petroleum well depth can arrive to 1000 to 7000 meters. In this program, the rig can meet lots complex geology situation, we must use drilling mud to help rig to protect well. For example , at the rock stratum, rig need lubrcate and take out the drill mud out well. Drilling mud is most widely be used for this application. Drilling mud is very important medium material to guarantee the drilling success.

Drilling mud can balance the pressure of outside and inside well. Through adjust the mud density by mixing barite or some other material to get the adapt density that we need. These high density mud can stop the well wall extruding rig, and prevent the headframe landslide. So the correct density is the key to guarantee the mud property. However in the drilling progress, as long as the mud be recycling and using time by time, the mud property will reduce and also it it mill mix some air contented inside of mud. Some times, we can see the mud have bubble. These bubbly will reduce the mud density and bring disaster since it can lead the blowout. Remove out the air is very important for drill.
GN vacuum degasser is specially used to remove these bubble. Inside the desander tank, it will generate a vacuum space to suck the mud into its tank, meanwhile ,the mud will be blend with high rotation speed, the center of liquid will generate a hydrocyclone , the air pressure at this part is very low, the air will be push out from high pressure place the inside of mud. And reach our purpose that remove out the air. GN degasser is a high efficiency equipment for drilling mud process, if you have demanded , welcome to contact us.