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Environmental Problems Caused by TBM Residue and Its Green Treatment

In urban subway construction, TBM has become one of the main choices for tunnel construction. The large amount of waste residue generated in the shield tunneling construction has brought many challenges to the urban environment. The dewatering, transportation, and landfill of residue will have a large adverse impact on the environment. As a kind of urban mineral resources, residue will consume a lot of land resources in landfilling. If the residue is recycled to be used as synchronous injecting paste material, raw material of ecological brick, roadbed filling, etc., it will effectively improve the ecological and environmental protection function of subway construction. However, at present, the recycling rate of TBM residue in China is very limited, and a further research on residue applica

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KOSUN LS2•752 double-deck linear shale shaker is widely applied in HDD projects.

LS2752 double-deck linear shale shaker can achieve four treatment effects: 1. Can be used as a two-stage shale shaker; 2. The lower screen can be used as a shale shaker and the upper screen as an underflow shaker of desander ; 3. The lower screen can be used as a shale shaker and the upper screen as an underflow shaker of desilter ; 4. The lower screen can be used as an underflow shaker of desander and the upper screen as an underflow shaker of desilter. Thus, it can be used under various operating conditions for different treatment effects, which can achieve multiple functions, greatly reduce cost and save installation space. Recycling process: centrifugal pump transports mud from mud pit into logging tank of shale shaker. After being treated by coarse screen of shale shaker, large cuttin

KOSUN LS2•752 double-deck linear shale shaker is widely applied in HDD projects. Read More »

KOSUN MD210 mud cleaner wins much praise from customers.

KOSUN MD210 mud cleaner is the second and third-stages solids control equipment in the drilling fluid solids control system, and further separates fine sand and other impurities contained in the mud treated by the shale shaker , facilitating mud to enter the fourth stage separation equipment. MD210 Cleaner can be used separately, and its underflow shale shaker can also be used as standby equipment in parallel with the first-stage solid control shale shaker, and our company can provide corresponding diversion manifold. The LS703 underflow shale shaker of MD210 Cleaner is a high frequency linear-motion vibrating screen machine, equipped with three screen panels and two vibrating motors, and offering a choice of manually adjusting screen frame angle while drilling (AWD). When LS703 shale shak

KOSUN MD210 mud cleaner wins much praise from customers. Read More »

Why do customers in the oil drilling industry at home and abroad trust Xi’an KOSUN so much?

For decades, the solids control products of KOSUN have always been famous for their stable and excellent performances. In the past 27 years, more than 500 sets of solids control systems and over 8000 sets of solids control equipment manufactured by KOSUN have been put into use at well sites all over the world. Furthermore, aiming at each rig, KOSUN customizes the most reasonable and beneficial solution for customers. Our stable equipment performance and outstanding solutions are recognized by well-known domestic and overseas drilling companies, such as CNPC, Sinopec, CNOOC, Gazprom, PDVSA, Conoco, etc. KOSUN is always committed to providing the best services for customers, beginning with your first e-mail and call. The service tenet of KOSUN is not to show our hasty service attitude toward

Why do customers in the oil drilling industry at home and abroad trust Xi’an KOSUN so much? Read More »

How to maintain the mud solidification system?

Mud solidification system is used to treat cuttings or drilling waste, which is developed to treat cuttings from oilfield drilling, trenchless construction, municipal engineering and other fields. When the mud solidification system runs, mechanical friction and wear will occur. About the maintenance of mud solidification equipment , you need to know the following: 1. Vibrating motors , screw conveyors , driving motors of agitating and solidification equipment, etc. should be regularly added with lubricating oil, which can effectively protect solidification devices, reduce mechanical friction, prevent mechanical wear, dust and metal corrosion, and avoid unnecessary friction and wear of solidification equipment. 2. Regularly check the lubricating oil consumption of the agitator and screw con

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The future development trend of clean production for oil and gas drilling in China

In the process of oil and gas exploration and development, the total amount of drilling fluid waste is large. At the same time, since the drilling fluid waste contains various processing agents, the composition of the pollutants is complex, the concentration is high, the chromaticity is large, and the chemical oxygen demand (COD) is high. To meet the new environmental protection requirements, there is an urgent need to accelerate the development and application of high-efficiency treatment agents and new technologies, new processes and new equipment for drilling fluid waste treatment, change the traditional end treatment ideas for drilling fluid waste, and establish a whole process control and clean production of well field closed-loop, fulfill the engineering applications, and achieve a n

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What are the commonly used drilling waste treatment methods at home and abroad?

Over the past few decades, the oil and gas industry has taken various measures to minimize the waste generated by drilling operations in order to better protect the environment and public safety. Drilling operators use environment-friendly three-stage waste treatment methods to treat drilling waste: In the first stage, operators adjust the drilling process or use the proper drilling fluid to minimize waste generated during the drilling process. This not only reduces the cost of waste treatment for the operator, but also is more beneficial to environmental protection. In the second stage, the minimized drilling waste is recycled as much as possible. In the third stage, the non-recyclable drilling waste will be treated legally. Foreign drilling waste management follows the 4R principle of mi

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KOSUN electronic ignition device is of high quality and low price, and is widely praised by customers at home and abroad!

The electronic ignition and combustion device, designed and manufactured by KOSUN, is a kind of treatment facility for tail gas and vented natural gas in refinery plants and natural gas gathering transportation stations. As safe and environmentally friendly equipment, it can ignite and burn vented harmful flammable gases to eliminate their hazards to environment and safety. Moreover, the device can also be used along with drilling mud-gas separators in the area of petroleum drilling engineering. As a fairly matured product, it has been extensively applied in oil and gas fields in Xinjiang and Sichuan Provinces of China, Iran, Egypt, Venezuela, etc. The device mainly consists of DN200 (or DN150) gas burner (torch), GDH-2 electronic igniter, igniting tools (including liquefied gas cylinder,

KOSUN electronic ignition device is of high quality and low price, and is widely praised by customers at home and abroad! Read More »

Operating Principles, Functions and Features of KOSUN Mud Gas Separator

Gas-cut drilling fluids enter the separator from its mud inlet, spray onto wear-resisting umbrella and spread over the umbrella board, knock against the board to increase its exposed surface area, and flow downward to create a turbulent flow state and make bubbles overflow from mud surface more easily. Bubbles then break and gas is separated from the mud. The free gas is eliminated through gas vent on the top of cylinder. The exhaust pipe is available and leads to a safe place, and its length is determined on site. The degassed drilling fluids enter the logging tank of shale shaker or circulating tank and are recycled after being purified by solids control equipment. Mud gas separator serves as an ideal deviceif well blowout or kick occurs orifoperators apply under-balanced mud column in d

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