KOSUN Drilling Mud Desander Features

Desander is secondary processing drilling fluid solids control equipment, according to the hydrocyclone diameter size to differ, divided into hydrocyclone and rotational flow desilter. General 6 “above the swirler combination called desander, is the drilling operation of secondary solids control equipment.

KOSUN oilfield drilling desander is an combination of hydrocyclones desander and drilling fluids shale shaker.The main structure can be divided into two parts, the upper one is hydrocyclones while the underpart is drilling fluids shale shaker.The whole device is driven by a vibration motor.

Commonly used is 10 “and 12″ hydrocyclone, mainly used for separation of drilling fluid particle size of 45-74 um of solid particles.

KOSUN Drilling Mud Desander Features:

1. Polyurethane(PU) Material or high-chromium cast iron for desander cones with longer using life.

2. Clamp type for easy maintenance.

3. Compact design with small footprint.

4. Flexible options for 1,2 or 3 for different capacities.

5. Flexible fast connection is available for user assembly

As an API and EC Certified China leading manufacturer for oilfield drilling desilter,KOSUN has won high recognition and praise from domestic and abroad with science core technique and a lot of innovative patents.Beside,KOSUN is specialized in decanter centrifuge,shale shaker and and other solids control equipment manufacturing.At present, KOSUN's business scope mainly covers China mainland, Commonwealth of Independent States, North Africa,Australia, U.S.A.and etc.

Oilfield Drilling Drilling Desander Features

KOSUN desander can be used as the second stage( installed downstream from the shale shaker) or the third stage( after shale shaker and vacuum degasser) solids control equipment to remove the drilled solids.Desander can be installed with one to three cones, process 500GPM, per cone. Usually the cone diameter is more than 6" is called desander , and used as the second -control equipment in the drilling operation . we commonly used 8" and 10 " cones desander to separate solids with the diameter between 45~75 microns.
Desander Features & benefits
1. Polyurethane(PU) Material or high-chromium cast iron for desander cones with longer using life.2. Clamp type for easy maintenance.3. Compact design with small footprint.4.flexible options for 1,2 or 3 cones for different capacities.5. Flexible fast connection is available for user to assembly.


KOSUN desilter can be used as the 3rd stage( installed downstream from the shale shaker and desander) or the 4th stage( aftershale shaker, vacuum degasser and desander) solids control equipment to remove the drilled solids.desilter can be installed with eight to twenty cones, process 80GPM, per cone. Usually, the desilter is used to conduct the drilled solids removal after shale shaker and desander, in other words, the larger solids have been removed by the former solids-removal equipment, the drilling fluids to be treated by desilter are much more fine.Commonly, installed with 4" and 5 " cones, desilters separate drilled solids with the diameter between 15~45 microns.
Desilter Features & benefits
1. 100% Polyurethane(PU) material for desilter cones with longer using life
2. Clamp type for easy maintenance
3. Compact design with small footprint.
4. Flexible options for 8 or 10, 12, 16 for different capacities.
5. Flexible fast connection is available for user to assemble.

The types and quantities of solids present in drilling mud solid control system

The types and quantities of solids (insoluble components) present in drilling fluids systems play major roles in the fluid’s density, viscosity, filter-cake quality/filtration control, and other chemical and mechanical properties. The type of solid and its concentration influences mud and well costs hole stability, These, in turn, influence the service life of bits, pumps, and other mechanical equipment.

Drilled solids, consisting of rock and low-yielding clays and addictive polymer, are incorporated into the mud continuously while drilling. To a limited extent, they can be beneficial before excess the tolerated concentration. Different mud densities require different strategies to maintain the concentration of drilled solids within an acceptable range. Whereas low mud densities may require only mud dilution in combination with a simple mechanical separator, high mud densities may require a more complex strategy:
chemical treatment to limit dispersion of the drilled solids (e.g., use of a shale inhibitor or deflocculant like lignosulfonate),
(b) more complex solids- removal equipment, such as mud cleaners and high-speed centrifuges .

Solids removal on the rig is accomplished by the following techniques: Shale shakers, desander , desilter, centrifuge. Each device is designed to remove a sufficient quantity and size range of solids.Often these are accomplished using separate devices, but sometimes these processes are combined, as in the case of the mud cleaner, which is a bank of hydrocyclones mounted over a vibrating screen. Another important hybrid device is the cuttings dryer (also called a rotating shaker), which is a centrifuge fitted with a cone-shaped shaker; Additional devices can help to enhance solids-removal efficiency. For example, a vacuum degasser is sometimes installed (before any centrifugal pumps, typically between the shakers and desanders) to remove entrained air that can cause pump cavitation and reduction in mud density.

Although,the solids-control equipment used on a rig is designed to remove drilled solids—not all solids—from a drilling fluid, perfect separation of desired from undesired solids is not possible, the advantages offered by the solids-control equipment far outweigh their limitations. Solids removal is one of the most important aspects of mud system control, since it has a direct bearing on drilling efficiency and represents an opportunity to reduce overall drilling costs.The key to efficient solids control is to use the right combination of equipment for a particular situation, arrange the equipment properly, and ensure that it operates correctly.

KOSUN Exports Oil Shale Shaker Screens in Batches to Canada

On January 4, 2013, KOSUN exported 1000 pieces of shale shaker screens used in oil and gas drilling to an oilfield service company in Alberta, Canada. Through close communications of its business personnel of Marketing Department and field tests of samples, KOSUN won high recognition from the clients by dint of stable performance of its shale shaker screens used in oil and gas drilling and successfully entered the market of North America.

KOSUN Exports Oil Shale Shaker Screens in Batches to Canada

Shale shaker screens used in oil and gas drilling are crucial wear parts of drilling shale shakers. The screens made by KOSUN possess such outstanding features as sophisticated technology, high treatment accuracy, corrosion resistance, wear resistance, and long service life, etc.

North America is always stringent with quality of oil drilling equipment and parts. This time, the successful entry of KOSUN Shale Shaker Screens into the market of North America marked the ascent of KOSUN into the high-end oil equipment market.

KOSUN is capable of producing screens specially matched with KOSUN LS Series Shale Shakers, MD Cleaners, DS Series Desanders and DL Series Desilters. The company can also manufacture various screens with 20-320 meshes through the way of OEM, such as Derrick FLC500, PMD and PWP series screen of FCL2000, Swaca, Brandt, etc. Moreover, KOSUN is able to customize OEM screens suitable for shale shakers of various brands and models according to the requirements of clients and ensure that the quality and service life of screens are close to those of original products.

KOSUN's 31 New Staff Visits Yongle Solids Control System Factory

On Nov 12th, 31 young “guests” visited KOSUN Yongle Solids Control System Factory. They were recently recruited into Xi’an KOSUN Machinery Co., Ltd., which organized this study visit in factory especially for them to have a thorough knowledge of products and for their convenience at work.

Led by the technician, the staff saw ZJ50 Solids Control System to be sent to Europe very soon and the products in Black Rhino Series on that day. During the vist, the technician made a detailed demonstration on such solids control equipment as Shale Shaker, Decanter Centrifuge, Drilling Fluids Mud Cleaner, Desilter, Desander, Vaccum Degasser, etc. and had a good communication with new staff who thereof understood more about company products.

KOSUN's 31 New Staff Visits Yongle Solids Control System Factory

Prior to this, another half-month study tour in factory was also organized by HR Department for some new staff to know process flows and product features via long-term communication with workers. Then were followed by the product trainings for all new comers as well as consequent examinations. All these together deepened their understanding of products. This time, they, who did not participate in factory training, also observed the products in person, getting a better appreciation of the products and company.

On the visiting spot

Business is as fierce as war, only the thorough knowledge of both friends and foes can help you win every battle. KOSUN attaches great significance to human resource development when they recruit great talents. Once on board, the new employees are supposed to accept an array of training classes covering corporate culture, product knowledge and service system. Turned a full member of the company, they will also have regular theme training concerned with businesses. Both of the internal and external trainings combine together to improve on staff’s overal capability.

Via the series of trainings, new staff had a better understanding of company, which is better for their incorporation into the company, helpful for their future work and enables them to introduce the company as well as products with completeness and accuracy in the conversation with clients.

The desander is primarily and widely applied in the petroleum industry

The desander is the two-level solids control equipment used for drilling fluid treatment. The desanderdesilter is mainly used for separating those solid particles with the granularity of 47 to 76 microns in the drilling fluid.
structure of desander 

The desander system is made up of the screening system, the adjusting and supporting system, the aqueduct, the foundation, the pressure gauge as well as the desander hydrocyclones.
The desander is primarily and widely applied in the petroleum industry, the oil and gas drilling, the exploration industry, the trenchless engineering, the geotechnical engineering, mining, metallurgy, coal as well as the hydroelectric industry. KOSUN MACHINERY is a professional solids control solution company which specializes in solids control equipment and system.

Desander is generally divided into the drilling mud desander, the drilling fluids desander and the hydrocyclone desander.

The hydrocyclone desander is operated in accordance with the principle of centrifugal separation. Since the water inlet tube is installed at the eccentric position of the cylinder, the water will first form into the downward inclined fluid along the tangent direction of the cylinder when it enters into the inlet tube through the hydrocyclone desander. The water flow will go downward in the spinning direction and in turn rotate upward along the axis of the cylinder when it reaches a certain position of the cone. Finally, the water flow will get discharged through the outlet pipe. Under the influence of the inertial centrifugal force from the water flow and their own gravity, those sundries will drop into the cone refuse vessel at the bottom of the equipment. With such advantages as high efficiency in decontamination, small drag coefficient, convenience in sewage disposal and reliable performance, the hydrocyclone desander can realize trash cleaning in operation with the water pump open.
As an auxiliary device in the petroleum drilling, the drilling fluids desander is mainly used for eliminating the rock debris and sand carried by the drilling fluid from the stratum in the process of drilling operation. The drilling fluids desander is made up of the tube for liquid inlet, the cone bucket for sand draining as well as the sand draining mouth. There are rotating parts installed in the cone bucket for sand draining, the supporting wall of which is equipped with separating windows. The upper supporting wall, a set of tapered slot as well as the tube for liquid inlet of those rotating parts make up the ascending components for the drilling fluid. Vanes of the desander are placed at the inner bottom of the rotating component and the sand draining regulator controls the amount of the drained sand. The drilling fluid enters into the rotating component through the liquid inlet tube and goes through centrifugal rotation by vanes. Those sand grains get separated from the drilling fluid when the fluid ascends to the separating window, through which the grains will be drained into the cone bucket. The drilling fluid after separation will enter into the ascending component and then flow into the groove through the liquid outlet of the cone slot.
As one of the indispensable and important devices for stabilizing and regulating those technical indicators of the drilling fluid, the drilling mud desander has also been extensively used in the tertiary purification of the drilling fluid. As the combination of the hydrocyclone desander and the vibrating screen, the drilling mud desander is the three-level solids control equipment used in the solid control system of the drilling fluid. It is primarily made up of the vibrating screen, the distribution manifold as well as the hydrocyclones. The drilling mud desander is mainly used to remove the harmful solid phase with the granularity of more than 15 microns so as to ensure the good properties of the drilling fluid.
http://www.kosun.com

the mud cleaner underflow and the bottom deck handles

Driling Fluid Mud cleaner is the second or third stage separation equipment of drilling liquid, which deals with the mud after being treated by the first grade separation equipment. The Driling fluid Mud Cleaner barite will be recovered and cuttings which are bigger than barite will be removed. Then the drilling Fluid Mud Cleaner barite in the underflow will flow into circulation mud tanks through the shale shaker screens when the weighted mud passes while the particles that are bigger than mesh will be removed.
 Driling fluid mud cleaner is the second or third stage separation equipment

Linear Motion Mud Cleaner Working Principle

In the dual simultaneous flow mode the top deck handles the mud cleaner underflow and the bottom deck handles the primary scalping. The mud cleaner is a six panel dual deck multifunctional drying shaker with desander and desilter. It has two 2.4 HP (1.8 KW) vibratory motors and a maximum shale shaker screen surface area of 56 sq. ft. (5.2 sq. m) capable of handling 500 to 1,500 gpm (31.5 to 94.6 lps).

All units can be provided with 380V / 50Hz or 460V / 60Hz; generate a noise level less than 80 decibels (dB); and are fitted with an adjustable deck capable of inclinations of -2 to +5 degrees. When drilling top-hole sections, where heavy, high volume solids are typically encountered, the high G-Force design will effectively move the solids across the shale shaker screens. All units come standard with explosion proof motors and enclosures.

KOSUN drilling Fluid Mud Cleaner mainly consist of desanding cleaner and desilting cleaner. KOSUN Drilling Mud Cleaner main components are shaker basket,vibration motor,screen tensioning solids control system, angle adjustment system, lock device, feeder and electric control system.The Fluid Mud Cleaner main body is made up of two parts of cones on upper position and a shaker.

http://www.solid-control-system.com/solids-control-equipment/centrifugal-pump.html

The Mud Cleaner main body structure used on the two block layout

Mud cleaner is the second class and the Third class solid control equipment which are combined from desander , desilter and underflow screen to treat the drilling fluid .It occupys small space and the function is powerful , mud cleaner is the ideal device of the 2nd and 3 rd class solids control to treat the drilling fluid . 

Multi-functional mud cleaners are designed to be combined with desander , desilter , pressure pump , the bottom slot , an Underflow Shale shaker , a bracket and a base .

KOSUN Machinery used at home and abroad the most advanced Mud Cleaner production process , to ensure that the production of powerful , compact structure , convenient operation , easy maintenance of drilling fluid mud cleaner .

The integrated cleaner can integrate a group of desander and desilter on one shale shaker , the drilling fluid firstly pass the Desander or Desilter for separation , with overflow returning to the circulatory system and the bottom flow screened and treated by the Shale shaker , if necessary ,the shale shaker of the integrated cleaner could be used as the shale shaker . 

1. The Mud Cleaner main body structure used on the two block layout , cyclone desander , desilter arrangement on the upper base is provided with a chute , chute arranged on shale shaker ,which has the advantage of compact structure , occupies small space area .

2. The Desander and Desilter mian inlet pipe and outlet pipe are arranged between the control valve ,can adjust the Desander and Desilter work quantity , simple operation , easy maintenance .

3. The cyclone mixer is made of wear-resistant special polyurethane material , which has good performance in fluid erosion resistance .

4. The feeding port tangential feeding and smooth transition , beneficial for improved separation efficiency .Inside surface smooth and rational channel .

5. Cyclone desander , cyclone desilter are equipped with automatic sand plugging device and bottom outlet adjustment device .

6. According to user needs to configure different number of cyclone for desander and desilter.
http://www.kosunservices.com/