Decanter centrifuge of drilling waste is the waste matter generated as a result of the very process of extraction of oil and gas from the earth, popularly known as drilling. This is an extensive and trillion dollar industry with a corresponding and gigantic waste production issue on a global scale. That is why; a new drilling waste management system called drilling waste management was introduced.
It consists of a series of processes from collection, management and containment of waste to subsequent treatment and disposal. Over the years, many techniques and methods were introduced for an efficient management of drilling waste. Also quite recently we saw more advancement and mechanization being brought into the whole process.
As a result of this, now we have instruments like decanter centrifuge to aid to the separation and handling of drilling waste. So let’s understand more about them and their mode of operation.
As the name suggest, the equipment uses decanter centrifuge forces to aid to the separation of desired and waste matters taking advantage of their differences in densities and other properties.
The mixed substance obtained from extraction is made to enter a disc or cone shaped structure that is rotated at a suitable speed. Because of the difference in natures of the unwanted and desired quantities, they are separated by combined effect of centrifugal and gravitational forces.
The fuel which is separated drops through the hole at the centre of the structure and the waste remaining in it is properly contained. For better gathering or collection of these waste matters, the walls of the discs are generally made with interspaces or slot like cavities.
The drilling waste progresses towards the walls of the disc and moves into a containment tank through the interspaces provided. As the machine consists of several moving parts, all components are to be kept smooth and clean to ensure optimum efficiency.
The main part of the drilling waste management system is the sedimentation centrifuge. Decanter Centrifuge is usually used for drilling waste treatment , mud and sludge and oil separation, etc.
There are some ways to maximize the performance of settling centrifuge:
• Operates with high G vibrating screens for water-based drilling waste or chips. After treating the waste with a vibrating screen, the material is fed into a settling centrifuge to separate small solid matter.
• Vertical cutting dryers are widely used in almost every borehole area. The use of decanter centrifuges and vertical dryer will help to deal with oil and synthetic drilling waste. The chips are first treated in a slurry shaker and then treated in a vertical dryer and then into a settling centrifuge.
• It is also important to choose the correct type of settling centrifuge. The details of the equipment must be discussed with the supplier and the manufacturer. Operators can understand the performance and efficiency by looking at machine data under similar conditions.
• The decanter centrifuge you choose must be based on your design. Some applications require high speed, while other applications require large bowl separation. Before purchasing the machine, please remember to summarize the clear picture in advance.
• The same model of the machine can also be slightly different in terms of feed technology, level and machine layout. Any change will seriously affect the performance of the machine.
• Last but not least, the machine should be operated by a professional operator. The dewatering machine requires a highly skilled operator’s function. A lot of things depend on the operator’s function. The main problem that most staff members suffer is the lack of skilled operators. So this aspect of the machine is as important as the rest.
Wherever you need to separate materials of different densities, you need a decanter to achieve your goal. The equipment uses centrifugal force to separate the different materials for processing. Decanter Centrifuges , sedimentation centrifuge, vertical centrifuge and other types.
Now based on this definition, we can imagine this device in a variety of different materials need to separate a wide range of industrial applications in the scene. Let’s take a look at the oil field drilling industry, which produces a lot of drilling waste.
Not only waste is harmful to the environment, but is handled directly, but also contains a large amount of drilling fluid that needs to be extracted and reduced. In order to complete this challenging task of separating the fluid, the settling centrifuge is deployed in the drilling operation.
The work of the decanting centrifuge can be understood as – if it is simple to use – it uses fast rotation to separate different types of material. In a more technical performance, the centrifuge is the use of centrifugal force using the settlement principle based on its density to separate the material from the device.
Imagine a bottle of creamy cream, stir with high speed, divide the cream into butter and skim milk. We know that different materials have different densities and that the centrifugal force causes them to resist the axis movement of the pits they store by means of rapid rotation using mechanical forces.
The material with the smallest natural density will be tilted upward, and the material with the highest density will precipitate at the bottom of the pit.
Decanting centrifuge equipment is used for various machines that need to filter solids and fluid mixtures. In the food processing industry, oil and gas industry and other industries found a wide range of applications.
Vertical centrifuge is a machine widely used in major industries to separate solid particles in a liquid. It rotates a very high speed creating the centrifugal force which causes the particles with higher density to move downwards and accumulate at the base. The movement speed is much higher than it would be under a normal gravitational force.
Vertical decanter centrifuge machine has a base, a rotating tube that is vertical to the base and two vials that at fixed by the centrifuge arms to the rotating tube. The centrifuge arms are fixed on the top of the tube that rotates and hence can move upright at 90. On spinning of the tube, the materials are pulled by the centrifugal force into the vials towards the center.
The inertia of higher density components is also higher so they respond less to the centrifugal force. This lets them outward and the lesser density component are pulled inwards. This process leads to the separation of mixture of different components.
Carl de Laval, a Swedish Engineer had invented the centrifuge in 1883. He used it to isolate the cream from milk. In 1920, Theodor Svedberg, also a Swedish Engineer further worked on Carl de Laval’s experiment and improved upon it. He created the ultracentrifuge that is used to separate the tiny particles of same weight. The vials are not very big in diameter in a ultracentrifuge.
In different industries the centrifuges used are rotated on different ranges between 1000 and 15000 rpm. In some other scientific applications the rotation is on a very high rate that can create a force of more than 25000 times as that of gravity.
The University of Colarado also invented a super-centrifuge. This is used to test effects of explosions on building.
The centrifuge invented by Laval is used for separating the impurities like water from oil, waste water treatment to purify the water.
Introduction: Decanter centrifuge is a very common equipment that is often found in an oil or gas drilling site. A decanter centrifuge is a very important machine for oil and gas drillers. A decanter centrifuge is basically used to dilute the underground fluids and liquids.
The main job of a decanter centrifuge is to rotate the drilling fluids and in doing so breaking the concentration of those fluids. The whole working functions of any decanter centrifuges is pretty much complex. Here is a discussion given below about how a decanter centrifuge works.
The way a decanter centrifuge works: As it is mentioned before the process of a decanter centrifuge is a bit complex. Usually, decanter centrifuges depend on sedimentation, differential speed and G force to perform its job. A decanter centrifuge needs a centrifugal force in order to loosen the fluid.
The sedimentation rate is an important feature for the centrifugal process. If the G force or centrifugal force is very high, the separation process becomes very easy and effective. The size and shape of particles and their level of concentration determine the sedimentation rate of any decanter centrifuge.
The sedimentation rate also depends on the centrifugal force. Another important issue for the functionality of decanter centrifuges is the differential speeds. In a centrifuge two different parts rotate simultaneously. The first part that rotates is the exterior bowl and the second part that rotates is scroll conveyor. Sedimentation is gathered in the centrifugal cylinder as the result of varying speed of the two above mentioned separate parts.
If the differential speed of decanter centrifuges is too high, a little time is required to loosen up the concentration of waste fluids. So, it is very important to keep the differential speed of a decanter centrifuge minimal. Thus, a decanter centrifuge operates its functionalities.
KOSUN is capable of providing customers with such three series as oil & gas drilling solids control equipment, centrifuges and drilling waste treatment equipment , including 25 categories of products.
Introduction: Modern gas and oil drilling sites are just a rigid manifestation of multi layered complex mechanism. Several gigantic equipments are set and operated in a single oil or gas drilling sites. The mechanisms of these equipments are very complex and very subtle. A very common equipment that is seen in an oil and gas drilling site is a decanter centrifuge.
A decanter centrifuge is a very useful equipment for any drilling site. Here in this article, we will try to provide a brief description about what a really it is.
A brief description of a decanter centrifuges: A decanter centrifuge is a device that can create a very fast rotation that is basically used to dilute the fluid that is extracted from the gas or oil mine. Generally, the liquid that is extracted from a mine is of highly concentrated and coagulated. So, extracting minerals from them is practically impossible. In order to thin up the extracted fluids, a decanter centrifuge is used. By using the rotational speed of a decanter centrifuge, the highly concentrated are turned into minerals extractable thin liquid.
There are three basic designs of decanter centrifuges:
The first one is vertically oriented decanter centrifuges.
The second one is horizontally oriented decanter centrifuges.
The third one is conveyor or scroll decanter centrifuges.
In the vertically oriented decanter centrifuges, the fluids or solids are gathered vertically. Vertical decanter centrifuges are very effective for high temperature and high pressure work. A horizontally oriented decanter centrifuges gathers the fluids or solids generated from high rotation in horizontal orientation. A horizontally oriented decanter is very effective for high pressure works as it provides a strong organization due to its horizontal orientation. Lastly, a conveyor or scroll centrifuge is basically a rotating machine inside a bowl.
A machine running on a centrifugal force to separate different parts is called a centrifuge. Dehydrator Centrifuge is a common device that is usually found on oil or gas drilling sites.
Dewatering machine Centrifuge for oil and gas drilling machine, basically used to dilute the underground liquid and liquid. The main task of the settling centrifuge is to rotate the drilling fluid, thereby destroying the concentration of these fluids. The overall job function of anything is very complicated.
Centrifugal force is the body in the high-speed rotation by the power. They are commonly used to separate components of different densities, such as water and solids. Decanter centrifuge is a special type of centrifuge that separates
It plays an important role in waste water treatment, chemical industry and food processing. The performance of the settling centrifuge depends on several different factors.
Most of the drilling and handling equipment handling components of the mixture. It is necessary to separate them separately for further processing.
Three types of decanter centrifuges are used in the industry: horizontal, vertical and conveyor. It is basically a high-speed rotating bowl that separates the solid from the liquid matrix. In the case of a drilling industry, inputs are drilling waste.
Centrifuges are easy to install and require less maintenance. Even if skilled operators need to operate them, decanter centrifuges help save a lot of money and improve the overall efficiency of the industry.
Centrifuge provides more flexibility and better feedback mechanisms. This allows the operator to allow the machine to work under different settings to separate the different components. The space required to set up the machine is very small, easy to start or close, allowing multiple units to work at once.
Horizontal Decanter Centrifuge of Kosun with more than 20 years experience in solid control and deserve well recognized by clients all over the world.
Economic configuration decanter centrifuge is the final phase equipment for the drilling solid control system. Keeping the equipment up and running all the time without any downtime will go a long way in determining the overall operational performance of the drilling project.
While it is important to make sure the equipment is kept in good condition and well maintained, making sure that it is being operated in right manner is equally important. A qualified and well trained operator will know the intricacies of operating the equipment and even know to spot the signs to raise the alarm.
Decanter centrifuge is high cost equipment. It is imperative that it is maintained well, after all the economy of overall project will largely depend on such wise measures only.
Here we are outlining a few tips with respect to operation and maintenance of decanter centrifuges :
1. Preparing for start-up: Before starting the centrifuge check all electric control system and related components. Test the rotating belt manually for any glitch. Inspect the overall panel for any alarming signs.
2. Start the equipment: Most of the modern horizontal decanter centrifuge comes with touch panel now that have fairly user friendly command buttons. Using the touch panel, release relevant commands to bring the equipment to start.
3. Preventive procedure: Once you are done setting up the system, do not directly start feeding the system, let it run for 5 minutes, add water to clean the stuck or dried material.
4. Shutting down the equipment: Do not cut off the power all at once and bring the machine to a halt. Gradually slow down the feed and let the machine process the remaining material till it lasts. Repeat the washing and cleaning procedure.
Make sure that no manual handling is done while machine is operational as it may be very risky.
Drilling Decanter Centrifuge is a device used in separating suspension of solids for drilling purpose. It has been designed for Oilfields and Industrial purposes that are seeking an environment friendly solution. Its speed ranges from 0n to 3900 RPM, generating centrifugal forces reach up to 3000G.
The main advantages of Drilling Decanter Centrifuge are;
1- It has a continuous dewatering in an enclosed unit, which reduces factory nuisances and cost of deodorizing premises.
2- The machines are cleaned automatically.
3- All mechanical safety mechanisms constitute part of the standard main equipment.
4- It is highly suitable for all sludge types, even the most difficult ones.
5- It is highly automatic and self-dependent machine with easy maintenance.
6- It has a very wide application range. The decanter centrifuge can conduct an effective separation as good as filtering centrifuge and can finish the separation despite failed filtering centrifuge.
7-Drilling Decanter Centrifuge can also be used for liquid clarification. It helps separation of lighter solids from heavier liquids.
8-It is usable in both high and low temperatures.
9- It has a Great Adaptability. It is capable of producing force even greater than the gravity, precisely 14,000 times greater than the gravity.
10- It grades the particles based on the size.
The disadvantages of drilling decanter centrifuges are;
1- It is an expensive and time-consuming process.
2- It has a complex structure, which is not easy to operate by a nonprofessional.
3- Sediment washing has not been very effective through this device.
4- Foaming of liquids may occur occasionally.
5- It is mechanically complex and tedious process.
6- The downtime for cleaning lowers the efficiency of Decanters.
7-Sometimes, the solids can build up inside the Decanters and cause a lower efficiency.
8- The Prescreening may be necessary to weed out particles too large to fit through the nozzles.
Decanter Centrifuge manufacturers – Kosun with more than 20 years experience in solid control system. Welcome to contact us.
Drilling decanter centrifuge is equipment used to separate solids and fluid from a mixture using centrifugal force. Centrifugal force is a force, arising from the body’s inertia.
Drilling Decanter centrifuge technique replaces the conventional method of settling down the solids in the process of water treatment and likes. The technique makes the process faster and improves the quality of the output at the same time.
The drilling waste largely consists of drill cuttings and drilling fluids that are commonly called as drilling mud. Drilling cuttings are nothing but the rock shavings acquired during the borehole drilling process and the drilling mud is a mixture of chemicals that aids the drilling process by keeping the drilling bit cool and lubricated during the process of drilling.
Other than petrochemical industry the Decanter centrifuge has its application in number of other industries as well, e.g. food processing, waste water treatment, fish processing, chemical, mineral processing, organic chemicals, polymer and inorganic chemical industry to name a few.
Due to its wide popularity across different industries, a decanter centrifuge is available in various types and variety of designs. A few notable ones being – vertical orientation, horizontal orientation and conveyer or scroll type. Operators will be using their discretion to choose the appropriate type and design as per the application need, as that remains customizable.
The performance of same design and type of decanter centrifuge may also differ in two industries, as the performance will largely depend upon number of external factors, chief among them will be the type of the waste material they will be treating with. As the guiding principle of a centrifuge is the separation of fluid by buoyancy of the material it works on to separate.