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In Kosun’s words, solid control system is also called drilling fluids purification system, primarily applied for solids control and solid-fluid separation in drilling fluids so that the drilling mud might be recycled. Consisted of 3-7 module composite tanks and configured with 4 phases of purification equipment, it is fit for 2000-7000 meter oil drilling processes. The whole system is innovative with the bottoms of its purification tanks made to be conical and its edges equipped with mud agitating system to prevent solids from depositing. Besides, its tanks and bins may be comparted or united depending on the demands of drilling processes. Each of them is connected to another via pipe network in which the valves at the bottom of suction pipes are flexible while being opened, but can turn to be a good seal when closed.
Main Equipment for Solid Control System:
The first main equipment for solid control system should be the vacuum degasser,We could analytics from the function of vacuum degasser. Generally speaking, horizontal vacuum degasser will be used to separate the gas from the drilling solids. What’s the reason to do like that? Because we should do everything to prevent any dangerous elements in oil & gas drilling fields. That’s why we should put the vacuum degasser as the first role.
The second one should be mud cleaner. KOSUN MD Series Mud Cleaner is the second stage separation equipment for drilling fluids, which deals with the mud being treated by the first grade separation equipment. The barite will be recovered and cuttings which are bigger than barite will be removed. Then the barite in the underflow will flow into circulation tanks through the screens when the weighted mud passes while the particles that are bigger than mesh will be removed.
The third equipment, we think it should be shale shaker (with necessary steel frame shaker screen). Actually, after the drilling solids have been transported and fed into vacuum degasser and mud cleaner, the third step is going with shale shaker. Commonly, we still need to be transported the solids onto the shale shaker, or we could say onto the surface of shaker screen. The equipment of transporting we should use is centrifugal sand pump or screw pump; and we may use shear pump to cut the drilling solids into small one if they are in big size. With the different design of the shaker screen’s mesh, we could get the drilling solids separated in different sizes.
The fourth equipment should be the decanter centrifuge. KOSUN DC Series Decanter Centrifuge is used to separate suspended solids ≥2μm in diameter and treat the drilling mud and fluids. It is especially effective when used in oilfield service industry, industrial service industry and especially in environmentally sensitive areas. This type of centrifuge is high in recovery rate, effective in solids control and remarkable in the reduction of cost spent on drilling mud resupplying and management. It is a very sophisticated dynamic balancing machine, able to operate stably with the whirling speed ranging from 0 to 3900 and generate centrifugal force of 3000G. In solid control system, decanter centrifuge has been popularly used, which is also the popular one for drilling waste management. In this step, we could not only get the result of separating, but also we could separate the oil from the drilling solids, even if the oil is just a little part.
Of course, the whole equipment must be mounted on the top of drilling mud tank, which is a kind of basic equipment for both solid control system and drilling waste management (vertical cutting dryer is the core equipment for this system), but it is a kind of powerful equipment.
(Editor:Kosun Lily.Wang)
In fruitful October, delivery for several sets of solids control systems customized for a Russian customer has all been completed. This successful cooperation between KOSUN and the Russian drilling service company further expands share of KOSUN solids control products in Russian market once again. Both parties have agreed to establish long-term strategic partnership in line with principles of mutual benefit and joint development.



On June 5th, 2014, the investigation group from a famous Russian drilling company arrived at KOSUN Jingwei Solids Control Factory for in-depth investigation and commercial & technical negotiation lasting two days. Both parties had a profound communication on rig solids control supporting equipment used in the polar regions in the future.
As a key market under KOSUN’s global layout, Russia owns rich oil and gas resources. And, against the background of previous Sino-Russia cooperation in energy filed, Chinese high-quality solids control equipment will be a pressing need in the coming five years. Russia is becoming an overseas market with the greatest potential for Chinese oil and natural gas drilling equipment manufacturers. KOSUN is making more efforts to develop the Russian market. We will build accessory warehouses in Russia, establish and improve high-level sales team by relying on local cooperative partners, and provide expert-level technical guidance and localized after-sales services to supply customized professional solids control and drilling waste management services for customers.

This Russian drilling service company possesses tens of rigs, being powerful and influential in Russia. With years of brand popularity won by KOSUN in Russian-speaking areas, KOSUN will be a core one whenever Russian drilling companies think of Chinese solids control equipment suppliers.

KOSUN is the first Chinese company that once provided solids control system used in polar conditions for Russian market. In 2009, KOSUN signed a contract with Gazprom, the largest natural gas corporation in the world, on the solids control supporting project for three polar region drilling rigs. During drilling projects in extremely cold winter in the polar regions, high-quality products of KOSUN have repeatedly brought satisfactory application experience to customers.

Accompanied by Ms. Liu Danyin, vice general manager of KOSUN, Russian customers paid a visit to the production line of each product. They spoke highly of the modernized factory, well-regulated production process, excellent production technologies and high enthusiasm of workers. The visit laid a solid foundation for long-term cooperation between us, and both parties are full of confidence in our future cooperation.
The 12th CIPPE Exhibition was held in the new National Exhibition Center in Beijing on March 19th, 2012. On that day, KOSUN signed full set contract of solids control recycling system for 3000 meters rig with Mongolian clients.

After KOSUN won 2 sets of fully configured 70D Solids Control System from GWDC, KOSUN signed another contract of 750 Workover Rig Solids Control Equipment with national drilling contractor in Egypt. In doing so, KOSUN has further opened markets in North Africa, and also created a new international market pattern.

In June, 2012, the international drilling contractor from Egypt required full set of solids control equipment be delivered within one month. After receiving notification, KOSUN made every effort to meet the delivery requirements, keeping the pledge of "Customer First".