KOSUN

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  • KOSUN Solids Control Factory ( Kazakhstan ) Completion

    KOSUN’s solids control factory in Kazakhstan was built and put to operation on 7th April, 2012. This factory is located in MTS TRAKTOR CO., LTD., 312 Infantry Division District, Aktobe, Kazakhstan.

    The successful completion of KOSUN factory in Kazakhstan indicates another achievement in KOSUN international brand marketing, marking the unique advantage of direct service for Kazakhstan, Uzbekistan, Turkmenistan, Tajikistan, Kirgizstan, Russia, Ukraine, Azerbaijan, Iran and other oil& gas production countries. 
     
    KOSUN Solids Control Factory (Kazakhstan) Completion
     
    Compared with other solids control manufacturers, KOSUN has gained the neighbour initiative by this factory establishment in Aktobe City. Owing to the tax alliance agreement between five Mid-Asian countries and Russia, Ukraine, the delivery time and cost will be dramatically reduced from customers’ payment on the solids control system which is a significant component in the whole drilling rig.
     
    KOSUN’s drilling rig assembly factory in Aktobe, Kazakhstan can supply main rigs, mud pumps, generator units, compressor units, MCC units, camp units, diesel and water tanks as well as manufacturing, maintenance and assembly of drilling fluid solids control system for oil & gas companies and oilfield drilling contractors in Mid-Asian, Mid Eastern and Russian countries. At the same time, KOSUN Oil Service Co., Ltd ( Kazakhstan ), a professional oilfield service supplier of KOSUN branch company, can provide drilling fluids package services including mud material, shaker screen, solids control equipment, drilling fluids waste management, etc.

  • Techniques on Drilling Sewage Treatment

    For offshore drillings, one of the biggest drilling waste is sewage which grows out of drilling fluids, rain, water used to wash bits and cooling water. Usually, the under-treated sewage weighs 30 times the well-bore volume. Therefore, sewage minimization is a very vital part in the whole waste treatment.

    However, as the easiest waste resource to be reduced, water can be reduced in such ways as below:

    One-way cooling system can save water and seal it inside the system while eliminating cooling water, braking water and sealing water to achieve water recycling. It is proved that it is not pricey to recycle the water and is able to save a large amount of liquids.

    The reason that rain can be recycled is the correlation between drilling fluids and water. Rain is applicable in washing drilling equipment. The water used to wash drilling equipment can flow into water tank just like rain and should be recycled till it cannot function any more. It will be surprising to see how many times they can be reused.

    The dirtiest water ( such as, deserted drilling fluids ) can be applied to wash the panel. Desander and filter can produce massive deserted drilling fluids( usually there is one portion of solid phase in 2 or 3 portions of fluid phase ). They can be used to wash drilling mud tank. And shale shaker and decanter centrifuge also need washing water. Water used to clean panel do not need purifying since it is not necessary to wash away solid phase and liquid phase with clean water. It will be very difficult to separate them during treatment procedure.

    It is necessary to produce sewage. It is quite expensive to treat sewage, so vacuum device is preferable to washing water here. A gun-shaped controller with tube is a good idea. The tube falls and automatically closes the connection to disconnect the controller. Drilling operators prefer high-pressure, small-volume washer due to the less labor intensity, better washing effects and reduced sewage volume. Generally speaking, both the vacuum device and washer are put into use when treatment is not costly. However, the gun-shaped controller will offset the cost.

    Different approaches can be conducted to separate and treat waste, for instance, water-based waste and oil-based waste can not blend until being managed together. During the operation, fluid from drilling mud pits should be reinjected so as to flow into spare drilling mud pits.

     

    Key words:

    KOSUN: Established in 1992 and headquartered in Xi’an China, Xi’an KOSUN Machinery Co., Ltd. ( KOSUN ) is among the first group of manufacturers of oil drilling high-frequence shale shakers, is a specialized centrifuge producer, the pioneer in the field of solids control in China, as well as an expert in drilling waste treatment. Its business scope mainly covers China mainland, Commonwealth of Independent States, North Africa and U.S.A..

    Solids control equipment: Its performance and quality play an important role in solids control technology. Drilling solids control system mainly contains such three parts as drilling fluids circulating tank, drilling fluids purification equipment and electric control equipment, among which the drilling fluids purification equipment includes shale shaker, desander, desilter, degasser, centrifuge, centrifugal pump, agitator, mixer, etc. Cuttings recovery and waste fluids treatment equipment can also be coupled for the environmental sensitive areas.

     

  • How to Achieve Zero Disposal of Drilling Waste?

    The first dozen years of 21st century saw rapid development in China and the whole world. Mechanical industry’s leading development has been driving up the demand for oil that led to thousands of oil projects, whose pollution also created tons of trouble to Earth’s environment. Here provoked a problem that needs a careful think of all oil explorers when environmental protection is being ever touchy nowadays,“ What should be done to make oil drilling more environment-friendly?”

    First off, we need to ask ourselves “how should we achieve zero pollution in oil drilling?”

    At the beginning of last century, drilling fluids concocted by chemical compounds were largely applied while drilling boreholes for improvement of its safety and efficiency. Drilling fluids have been especially useful in carrying out drill cuttings, providing hydrostatic pressure to prevent formation fluids from entering into the well bore, cleaning the bottom of wells, preventing oil and gas from flowing up the wells, keeping the drill bit cool and clean during drilling, etc, which has made it the “blood” of drilling equipment. However, just like every coin has two sides, it will turn into poisonous “blood” when it is discharged onto soil with cuttings since it may contain soluble inorganic salt, heavy metal, organic hydrocarbon ( oil substances ), etc, which could easily be made harmful via rain immersion and river brush to the surrounding soil, water source, farmland and air.

    It is expected that our tentative efforts would make drilling waste management perfect, but the facts did not turn out so. Pollution resulted from oil drilling is still swallowing our healthy environment bit by bit and the problem is still vexing our nerves. Nevertheless, we cannot do without it because the drilling fluids have already been the “blood” in the industrial era.

    Xi’ an KOSUN Machinery Co., Ltd. who has been specialized in oil drilling machines began seeking for solutions on site in order to truly green oil drilling. Waste disposal was the biggest problem for oil drilling contamination. We need to minimize it and even better, zero it, then we can achieve greening of oil drilling.

    Via 20-year grueling efforts from 1990s to early 21st century, KOSUN has developed oil drilling solids control system and waste management equipment and has set up an integrated waste management solution system by combination of domestic and foreign treatment experience learnt on site.

    This solution would deal with disposal at the source by means of solids control equipment, dewatering purification equipment and waste management equipment.

    The first part—solids control equipment, comprising shale shaker, vacuum degasser, desander, desilter, decanter centrifuge, is directly connected to mud pumps. The drilling mud drawn out from well will go through the four phases of solids control system. Afterwards, it will be used again and the disposal is minimized at the same time.

    The next part after solids control is dewatering and water treatment, via which water may be effectively recycled. If they are applied in water-scarce area, large amount of water would be saved and waste disposal reduced.

    Then, screw pump or screw conveyor may transport dewatered waste to Hi-G Dryer and Vertical Centrifuge, waiting to have solids and liquid separated again. Hi-G Dryer’s high spinning speed and effective treatment will produce very dry dregs, recover partial drilling fluids and recycle resources.

    In the end, the dregs will be further treated by means of solidification, cutting injection, biodegradation, thermal desorption according to the actual situation on the site of drilling and the composition of dregs.

    Drilling waste disposal will be reduced to almost zero after going through the system, effectively satisfying the demands for zero disposal and the state environmental protection regulations, solving the vexing problems in oil drilling, and truly fulfilling the wish of “green drilling” in oil industry.

     

  • NOV Announces Deal of 7 Drillship Equipment Packages

    National Oilwell Varco, Inc. ( NYSE: NOV ) announced today that it has signed contracts to supply drilling equipment packages for seven drillships to Estaleiro Atlantico Sul ( "EAS" ), including drilling riser and pressure control equipment. The value, over the term of the deliveries, is approximately $1.5 billion.

    Pete Miller, Chairman, President and CEO of National Oilwell Varco, stated, "We are pleased to have been selected as the drilling equipment supplier for this prominent project, and excited to work with one of Brazilian premier shipyard companies, EAS. Brazil’s extraordinary deepwater discoveries of the past several years have transformed it into one of the most significant offshore markets we serve, and one we expect to continue to grow. We are investing heavily in Brazil to manufacture more of the products and technologies National Oilwell Varco provides to our oil & gas customers, and to service the rapidly growing installation base of NOV drilling equipment in the region.

    NOV Announces Signing of 7 Drillship Equipment Packages

     

    "Congratulations to our Rig Technology Team on securing the largest single order in our company’s 150-year history!"

    National Oilwell Varco is a worldwide leader in the design, production and sale of equipment and components used in oil & gas drilling and production operations, the provision of oilfield services, and the supply of chain integration services to the upstream oil & gas industry.

    Statements made in this press release that are forward-looking in nature are intended to be "forward-looking statements" within the meaning of Section 21E of the Securities Exchange Act of 1934 and may involve risks and uncertainties. These statements may differ materially from actual future events or results. Readers are referred to documents filed by National Oilwell Varco with the Securities and Exchange Commission, including the Annual Report on Form 10-K, which identify significant risk factors which can cause actual results to differ from those contained in the forward-looking statements.

     

    SOURCE: NOV

     

  • KOSUN Signs Full Set Contract of Solids Control Equipment with Mongolia Clients at 2012 CIPPE

    The 12th CIPPE was held in the new national exhibition in Beijing on 19 Mar, 2012. On that day, KOSUN signed a full set contract of solids control recycling system for 3000 meters rig with Mongolia clients.

     

    KOSUN Signed Full Set Contract of Solid Control Equipment with Mongolia Clients at 2012 CIPPE

    Set up in 1992, Xi’an KOSUN Machinery Co., Ltd. is now the leader of solids control industry of China and integrated servicer of oil drilling mud & the supplier of full set of rig. KOSUN’s production & development base is in Xi’an China, overseas project management center & international trade department in Beijing. Besides, KOSUN also has a rig factory of 10,000 m² in Aktobe, Kazakhstan. So it’s very convenient to supply camping house, various water & oil tanks, mud purification solids control system as well as maintenance service for various oil field companies around Mid-Asian countries and Russia. In addition, KOSUN also owns an oilfield service company in Aktobe, Kazakhstan for the purpose of supplying professional integrated service of mud including various drilling mud materials, shaker screen, mud solids control equipment & DWM etc. KOSUN has a warehouse & service company in Indonesia too, which can supply full service of solids control equipment & drilling mud for all different clients from South-East Asia.

  • Shake Shaker for Drilling Mud System—Important Drilling Solids Control Equipment

    Shake shaker is the important drilling solids control equipment, used as first stage solids control equipment. There are some tips of using it in the operation processes.

    1. Shale Shaker Deck Angle Adjustment

    The shale shaker deck angle ranges between -1 ~ +3° and its rated angle is 0~ +5°. There is lifter, pipe, lifter pipe, scale indicator, scale, connection plate, etc. When we make adjustment, if the wheel rotates in a clockwise direction, then shaker deck angle will be larger; if the wheel rotates in an anti-clockwise direction, shaker deck angle will be smaller.

    Shale shaker output angle adjustment can be operated under running and off. When the shaker finishes delivering it, the shaker deck is 0°. When user operates shaker, according to drilling mud property and flow rate on job site, and adopts same screen, the angle is higher, the treating performance will be better while treating capacity will be higher. When drilling fluids is leaking on shaker deck, increased deck angle can let fluids flow away.

    Shake shaker for drilling mud system is a important drilling solids control equipment

    2. Shale Shaker Screen Replacement

    To make shale shaker screen installation and uninstall easier, the fast installation structure was designed. The structure is a special type using tension wedge to fix screen. Refer to fig IV. The structure is composed of shelve strip and wedge. The first screen installation, we should inspect the screen dimension, such as 1250±2mm, the tolerance can’t go beyond that. After fixing rubber strip, put screen and shelve strip from shaker back (drilling fluids input), and push wedge evenly on two sides by using hammer to push or tension wedges so that two sides are made identical. Tension each screen subsequently.

    Replace the shaker screen during operation, when screens are broken or need to be replaced, please refer to fig IV. Get wedge out, then bring out screen, check if rubber strips are sufficient; then put new screen on shaker deck and tension it steadily. Then replacement is finished.

    About KOSUN

    KOSUN is a professional drilling fluid solids control equipment manufacturer in China, which was established in 1992. KOSUN can supply shale shaker, vacuum degasser, drilling fluid mud cleaner, desilter, desander, decanter centrifuge, centrifugal pump, screw pump,mud tank, jet mud mixer, diesel tank, shear pump, mud agitator, mud gun, water tank, etc. KOSUN has spread its products over oilfield drilling companies, engineering service companies and machinery plants affiliated to CNPC, Sinopec and CNOOC in China market. KOSUN’s solids control equipment have been exported to the following regions: All-Russia Region, including Russia, Kazakhstan, Uzbekistan, Azerbaijan, Ukraine, Turkmenistan, Kyrgyzstan,Tajikistan, etc.; East Asia and South Asia, including Pakistan, India, Indonesia, Thailand, Burma, Malaysia, etc.; the Middle East and North Africa, including the United Arab Emirates, Kuwait, Egypt, Algeria, Libya, Sudan, etc.; America, including the United States, Canada, Mexico, Brazil, Columbia, Venezuela, etc.; Australia; Germany in Europe.

  • KOSUN Service Co., Ltd. ( Kazakhstan ) Wins GWDC 2000HP Solids Control System Contract

    Before the 20th anniversary of Xi’an KOSUN Machinery Co., Ltd., KOSUN signed the contract on 2 sets 2000HP solids control system package with Great Wall Drilling Company ( GWDC ).      

    The beneficiary of this contract is Sino-Kazakh GWDC ( ТОО "Казахстанско-китайская буровая компания Великая стена" ), located in 43A Meltaglough Street, Aktobe, Kazakhstan, is the biggest drilling company in Mid- Asian area and the overseas technical service company of Great Wall Drilling Company ( CNPC GWDC ). Sino-Kazakh GWDC is a joint venture invested by GWDC and CNPC-International Aktobe Petroleum Corp, which has an annual production value of 15 million US$, 30 sets drilling/ workover rigs and 3250 staff.       

    Sino-Kazakh GWDC is a comprehensive drilling company which focuses on drilling engineering contract, drilling fluid technology, cementing, directional drilling, fishing, drilling tools maintenance, rig relocation & installation and other drilling services onsite. The main operation site is located in Zhananuoer, 265 kilometers away from its headquarter in Aktobe and owns the company front command center which consists of one front conduct base and 3 project teams.   
     
    KOSUN Service Company(Kazakhstan)Won GWDC 2000HP Solids Control System Contract
    Since the establishment of KOSUN Service Co., Ltd. ( Kazakhstan ), KOSUN has been the only solids control service supplier for Sino-Kazakh GWDC and Batys-Munai LLP from the year of 2009. KOSUN has a service base and two warehouses in Zhananuoer and can provide comprehensive solids control equipment maintenance and spare parts supply service to our clients for 24 hours.  
     
    At the same time, the solids control factory completed on 7th, April in 2012, which made it more convenient for KOSUN to supply services for our clients from Kazakhstan, Uzbekistan, Turkmenistan, Tajikistan, Kirgizstan, Russia, Ukraine with zero tax solids control equipment, tanks, camp fabricating and maintenance.  
     
    All the solids control system components are manufactured by KOSUN for these 2 sets of 2000HP Drilling Rig, including mud tanks, shale shakers, mud cleaners, centrifuges, centrifugal pumps, mud agitators, desanders, desilters, sand-proof sheds, etc.  
     
    The investment of these 2 sets 2000HP Drilling Rig Solids Control Systems in the solids control factory in Kazakhstan will be another achievement for KOSUN in its Mid-Asian drilling equipment market. KOSUN is and will always be the fully reliable solids control service provider for Russian and Middle Asian regions! 

  • KOSUN Drilling Decanter Centrifuge Applied in Oilfield

    Decanter centrifuge is really one of the most useful machines, because it has found wide application in many industries. The commonest industries include oil well drilling, biological wastewater treatment, food processing, chemical slurry and other fields. It is used to extract particles from liquids.

     

    KOSUN drilling decanter centrifuge applied in oilfield application

    Now, let’s have a look at the function of oilfield decanter centrifuge. In oil & gas industry, decanting centrifuge is the core part separating cuttings from drilling fluids. It is vital to the process of drilling projects. So, in order to improve the project efficiency, the companies should adopt excellent drilling decanter centrifuge.

    KOSUN is a professional solids control equipment manufacturer producing highly efficient drilling mud shale shaker, drilling fluids mud cleaner and drilling decanter centrifuge as well as necessary components of oilfield solids control equipment. KOSUN DC Series Decanting Centrifuge is excellent in making a separate suspended cuttings above 2μm in diameter. Besides, the decanting centrifuge is able to operate stably with the whirling speed ranging from 0 to 3900 and generate centrifugal force of 3000G.

  • The Purpose of Drilling Fluids Purification Solids Control System

    READ: If the solids control equipment are put into prompt application, they will remove such harmful solids as drill cuttings, silts, coarse clay, etc., keep the content of useful solids like barites and bentonites under the sway of regulations, and, at the same time, recover barites and bentonites from drilling fluids.

    What is the purpose of applying drilling fluids purification solids control equipment?

    The main application that drilling fluids purification solids control equipment, as a must for drilling fluids circulating system, find is to control the solids content in drilling fluids. Increased solid content in drilling mud will result in a remarkable fall of mechanical drilling speed and even drilling accidents, thus surging the overal drilling cost up to a large degree. Experiments prove that 1% down in solid content will bring drilling speed up at least 10%.

    Solids control system is mainly functional in:

    1. Removing harmful solids and guaranteeing continuous drilling operations;

    2. Making the drilling safe and eliminating the potentials of accidents;

    3. Reducing the energy consumption;

    4. Reducing the pollution and protecting the environment.

    Such harms can be the consequences of high solids content in drilling fluids as,

    1. Raised mud density, lowered mechanical drilling speed, shortened lifespan of drill bit;

    2. Thickened the filter cakes, softened the formations as well as strong friction, which easily lead to blocked drilling tool when it is running and sticking of drill bit; and larger filtration loss, which result in expansion of inner wall, drawing down, peeling, collapse, etc.; then, more permeable filter cakes, enlarged filtration loss, which reduce oil layer permeability and crude capacity; what is more, higher solids content, thicker filter cake, which may also cementing quality;

    3. High silt content, which severely abrades the drill bit, drilling rig and mechanical equipment, thus hindering the normal drilling operation;

    4. Unsteady mud propertied, larger viscosity & shearing force, inadequent flowability, all of which produce clay and chemical contamination;

    5. Miscellaneous silts, hindered electric logging, inaccurate logging data;

    6. Complicated treatment process, which ups the cost in drilling fluids.

    Impacts That the Solid Content Exerts on Drilling Speed,

    1. Drilling speed is inversely proportional to solid content. Suppose the drilling speed in clean water stands at 100%. When the solid content goes up to 7%, drilling speed reduces to 50%, that is half that in clean water. As far as numerous data display, when the solid content is not beyond 7%, 1% down in solid content will bring drilling speed up at least 10%.

    2. In different solid content ranges, the increase rates of drilling speed vary. If the solid content remains under 7%(equal to such density as 1.08 g/cm3), drilling speed will climb at the fastest speed; if it goes beyond 7%, it does not make much significance to drilling speed.

    3. Drilling speed is influenced, to the greatest extent, by colloidal particles below 1µm in diameter. It is proved by experiments that colloidal particles with diameter below 1µm are 12 times more influential than the coarse particles with diameter above 1 cape. Accordingly, the more the colloidal particle there are, the slower the drilling speed is.

    In a word, If the solids control equipment are put into prompt application, they will remove such harmful solids as drill cuttings, silts, coarse clay, etc., keep the content of useful solids like barites and bentonites under the sway of regulations, and, at the same time, recover barites and bentonites from drilling fluids.

     

  • Functions and Potentials of Solids Control Equipment

    READ: Increased solid content in drilling fluids will result in remarkably reduced mechanical drilling speed and even some drilling accidents, thus surging up the overal cost in well. Drilling fluids circulating solids control equipment, as primarily aimed at controlling the solid content, must work together with drilling fluids purification device.

    Increased solid content in drilling fluids will result in remarkably decreased mechanical drilling speed and even some drilling accidents, thus surging up the overal cost in well. Drilling fluids circulating solids control equipment, as primarily aimed at controlling the solid content, must work together with drilling fluids purification device. Experiments prove that 1% decrease in solid content will generate at least 10% boost of drilling speed, and the size of solid particles has inversely proportional relationship with their influence on drilling speed.

    Solids control system is used to,

    1. Remove harmful solid phase and keep the drilling operations going;

    2. Keep the drilling process safe and prevent some accidents;

    3. Reduce the energy consumption;

    4. Reduce the pollution and protect the environment.

    Solids control system is constituted of,

    1. Three-in-one mud cleaner, drilling fluids shale shaker, vacuum degasser, desander, desilter;

    2. Drilling fluids decanter centrifuge;

    3. And the others, like, centrifugal pump, shear pump, mud agitator, mud gun, mud circulating tank and batching apparatus.

    At home, there is not yet a wide variety of drilling mud shale shakers. Therefore, it is necessary to research and develop dry fine-mesh shaker, tracked non-shaker analytical apparatus, offshore drilling environment-friendly solids control equipment and versatile supporting mud circulating system to enrich the variety of domestic solids control equipment.

    Though, in recent years, great breakthroughs have been made in the study on domestic solids control equipment’s theory and their production & processing level, especially that in the study of theories like, working theories of drilling mud shale shaker and centrifugal cyclones, etc., which has reached or near to the world-class standards, there is still a long way to go between domestic and foreign equipment in terms of performance and lifespan, extending to the materials, processing technology, processing precision and quality of supporting generic devices (such as, electric motor). There is no high-pressure, large-engine solids control equipment available at home now.