Industry News Archives - Drilling waste management,oil based mud treatment,drilling mud circulation system,drilling waste management companies

01/30/202301/30/2023

Drilling fluid purification equipment and circulation program

Commonly used drilling fluid purification equipment:
(1) The shale shaker is used to remove sand particles larger than the mesh size;
(2) The cyclone separator is used to remove particles smaller than the mesh size of the vibrating screen;
(3) screw type centrifuge, the effect is to reclaim barite and separate clay particles;
(4) Sieve drum centrifugal separator, the function is to recover barite.

The properties of drilling fluid mainly include:
(1) density; (2) viscosity; (3) yield value; (4) static shear force; (5) water loss; (6) mud cake thickness; (7) sand content; (8) pH; (9) ) solid phase, oil-water content.

Drilling fluid is the blood of drilling, and its main functions are:
1) Carrying and suspending cuttings;
2) Cooling and lubricating drill bits and drilling tools;
3) Cleaning and scouring the bottom of the well to facilitate drilling;
4) Prevent blowout;
5) protect the well wall and prevent the well wall from collapsing;
6) transmit power for downhole power drilling tools.

Circulation procedure of drilling fluid in drilling:
Drilling fluid tank via pump→ground manifold→standpipe→water hose, faucet→inside the drill string→drill bit→annular space outside the drill string→wellhead, mud (drilling fluid) tank→drilling fluid purification equipment→drilling fluid tank.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
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08/28/202208/28/2022

Necessity of Slurry Treatment for Slurry Balance Shield

Necessity of Slurry Treatment for Slurry Balance Shield

During the drilling process of the mud, due to the continuous entry of drilling slag into the mud, the specific gravity, viscosity and sand content of the mud change, which cannot meet the requirements of mud performance, and must be treated or purified, mainly by solid-liquid Separation, the drilling slag in the mud is separated and discharged and then recycled.

There are two main methods of engineering construction mud purification: sedimentation tank and mechanical equipment. The current mainstream mud-water construction has abandoned the use of large natural settling tanks and switched to a combination of vibrating screen and cyclone equipment for construction. The KD series mud water treatment unit manufactured by our company is mainly used to purify mud, complete mud recovery and solid slag treatment.

Mud-water balance shield mud-water separation According to the difference in the structure of the mud-water tank and the control method of the mud pressure, the mud-water shield is divided into: direct control type and indirect control type.

Similar slurries are also used in diaphragm wall operations (dual milling) and cast-in-place piles (rotary drilling and punching equipment).

05/30/202205/30/2022

Mud Circulation Treatment System Generated During Drilling

Oilfield drilling mud is a working fluid that lubricates, cools, protects arms, transmits drilling cuttings and balances bottom pressure during oilfield drilling. Drilling waste mud consists of a small amount of mud discharged during drilling and a large amount of mud discharged after completion. The main components are bentonite, drilling cuttings, water and various chemical additives. Because the waste mud contains a variety of toxic and harmful pollutants such as alkali, salt, oil, etc., it is difficult to deal with, so oily sewage and dirty oil are called the three major public hazards in oil fields. With the provisions of the national environmental protection law and the enhancement of people’s awareness of environmental protection, the petroleum industry has stepped up scientific research on elimination, utilization and resource recycling.

During oil drilling, the use of drilling mud treatments is frequently involved. Untreated sludge can have serious environmental impacts if it is not treated effectively. Relevant practitioners need to properly implement various drilling mud measures and optimize scientific and technical means, so as to effectively improve the quality of oilfield mud treatment. Therefore, in the process of oil drilling, it is necessary to recycle the mud generated during the drilling process to ensure the smooth progress of the drilling work and the engineering quality of the drilling construction.

KOSUN’s mud zero discharge equipment is suitable for mud treatment in medium and large construction sites. The advantages of this model are the large processing capacity, the low moisture content of the mud cake, and the high degree of automation. The filter cake can be accumulated for a certain period of time, which improves work efficiency and reduces costs.

03/31/202203/31/2022

Structural features of core equipment for oil drilling waste mud treatment

Structural features of core equipment for oil drilling waste mud treatment equipment:

The main parts such as the drum are made of corrosion-resistant stainless steel;
The feeding screw adopts special anti-wear measures, which can be spray-welded with carbide protective layer or mounted with carbide resistant sheet;
Large aspect ratio and high speed. Drum cone structure with various angles;
Cycloidal pinwheels, planetary gears or hydraulic differentials with heavy load and large transmission ratio can be selected;
The differential speed and torque can be automatically adjusted with the change of material concentration and flow rate by a microcomputer control system.

The core equipment of oil drilling waste mud treatment-centrifuge main consists of rotating drum, screw propeller, big end support plate, small end support plate, differential, main drive motor, auxiliary drive motor, hydraulic coupling, bearing seat, rotating body It consists of a shield, a transmission shield, a transmission belt, a control box and a base. The bowl and the screw propeller are the core components of the centrifuge, where the solid phase separation of the drilling fluid is carried out.

KOSUN oil drilling waste mud treatment equipment, can be fully automatic operation, the machine has large processing capacity, mobile operation, low cost, small footprint, simple operation, good separation performance, strong adaptability, low labor intensity, Intelligent control and other advantages. KOSUN solid-liquid separation equipment is specially suitable for oil drilling mud, sand washing wastewater treatment, mining mud dewatering, tailings mud treatment, washing platform mud dewatering, ore washing wastewater treatment and other mud and water separation.

03/30/202203/30/2022

The process of Farm sludge dewatering

In the sludge dewatering of farms, sludge dewatering equipment is the core and important equipment. The principle of sludge dewatering equipment in farms is the same as that of sludge dewatering equipment in other industries. There are many sludge dewatering equipment in farms. At present, domestic sludge treatment equipment includes centrifuges, plate and frame filter presses, chamber filter presses, diaphragm filter presses, and high-pressure sludge dryers. Different sludge treatment equipment the moisture content after dehydration is different.

The characteristics of farm pollution are high-concentration organic sewage sludge, high content of suspended solids and ammonia nitrogen, and high content of organic matter and microorganisms. The sewage sludge of the breeding site has the characteristics of three highs. The organic matter concentration COD is as high as 3000-12000mg/1, the ammonia nitrogen content is as high as 800-2200mg/1, the suspended matter is dozens of times more than SS, the color is deep, and it contains a lot of bacteria, organic phosphorus, Heavy metals, residual chemicals and other hazardous substances.

It has been proved by experiments that the effect of using the horizontal screw decanting centrifuge in the sludge dewatering process of the farm is better than that of other sludge dewatering equipment. The centrifuge adopts the principle of centrifugation. After being treated by the centrifuge, the water content of the sludge cake is low, the equipment covers a small area, and the capital construction cost is low, the device has the advantages of compact structure and so on.

03/28/202203/28/2022

KOSUN Supplied a set of Sedimentation Tank Slime Treatment System for Shaanxi Coal Group

Recently, KOSUN successfully supplied a set of processing system for efficient cleaning of coal slime and slag for Shaanxi Coal Group, and sent it to the customer’s project site to complete the installation and commissioning. This system adopts a modular design concept, which is divided into a sedimentation tank cleaning and dehydration transfer module and a coal slag dehydration transfer module, which can be flexibly increased or decreased function module according to site needs.

KOSUN sedimentation tank slime treatment system effectively solves the problems of high solid content in the clear liquid in the sedimentation tank, difficult sewage treatment and high cost; cumbersome coal slime excavation and stacking process in the sedimentation tank, and time-consuming and laborious processing. The solid-phase moisture content after being treated by the KOSUN sedimentation tank slime system is less than 50%, which reduces the stacking volume and floor area, ensures that ordinary muck trucks do not cause secondary pollution when they are transported out, and reduces the amount of liquid entering the sewage treatment station. The total amount and solid content of the phase can be reduced, and the cost of liquid phase treatment can be reduced, not only can the coal slime originally discharged as waste be recycled, but also meet the requirements of national environmental protection and industry standards, and achieve the dual effect of improving economic benefits and environmental protection.

KOSUN has always provided you with solid-liquid separation solutions in the solid waste treatment industry. Customers are welcome to call for consultation!

02/07/202202/07/2022

Reservoir dredging sludge dewatering treatment equipment

The following is a detailed introduction to the five commonly used treatment equipment for reservoir dredging sludge dewatering:

The ideal method for front-end sludge dredging treatment is to use a submersible sand pump as a dredging pump and a cutter suction dredger and a scour suction dredger. The method often used in the back-end sludge dewatering treatment is to use a special sludge treatment system to separate the solid and liquid of the sludge from the sludge from the front-end dredging. The system mainly includes: screening equipment, dosing system, Sludge dewatering equipment, etc. Among them, sludge dewatering equipment can be prepared with 3 different types of equipment according to different actual conditions of reservoir sludge, including: screw stacker, centrifuge, filter press:

1) The submersible sand pump is used as the dredging pump, and the corresponding sand pumping system and special sand conveying pipeline can be used for easy cleaning. The overall configuration is simple to operate, easy to use and economical.

2) Adopt cutter suction dredger and scour suction dredger. It is mostly used in situations where the area of the reservoir is relatively large, the dredging sediment is relatively hard, or the requirements for the depth of dredging are relatively strict. Suction type dredging vessel, simple to operate, low investment, mostly used in small reservoirs, the sediment is not very hard and can be recoiled with high pressure water, and the depth requirements for dredging are not very strict.

3) Snail stacking machine: The snail stacking machine has the functions of rapid concentration, continuous dehydration and self-cleaning. The advantage of the screw stacking machine is that the equipment relies on the movement between the fixed ring and the moving ring to achieve a continuous self-cleaning process, so that the It avoids the common clogging problem of traditional dewatering machines, and also achieves the purpose of sufficient sludge dewatering.

4) Filter press: The basic principle of solid-liquid separation is: the mixed liquid flows through the filter medium (filter cloth), the solids stay on the filter cloth, and gradually accumulate on the filter cloth to form a filter cake. The filtrate part penetrates the filter cloth and becomes a clear liquid without solids. The plate and frame filter press is used for the separation of solid and liquid. Compared with other solid-liquid separation equipment, the mud cake filtered by the filter press has higher solid content and excellent separation effect.

5) Centrifuge: It uses the principle of centrifugal sedimentation to separate the suspension in the sludge. The smaller the particles, the slower the sedimentation and the more serious the diffusion phenomenon. Therefore, the powerful centrifugal force of the centrifuge is used to accelerate the sedimentation of the particles in the liquid. The speed of these small particles can overcome the diffusion to produce a sedimentation process, so as to achieve a rapid dewatering process of the sludge slurry. The progress of the sludge dredging and dewatering project in the reservoir is generally subject to time requirements and limitations. Stable and efficient treatment equipment can well ensure the smooth completion of the reservoir sludge dredging and dewatering project according to quality and on time.

12/22/202112/22/2021

Why is it difficult to dehydrate and separate water-based mud from oilfield drilling?

The main factor that is difficult to dehydrate and separate water-based mud for oilfield drilling is the complex nature and many components of hydraulic mud.

The product composition of water-based mud in the drilling process is more complicated. The main components of oilfield drilling mud are multiphase colloids such as water, clay, drill cuttings, flocculants, and drilling fluid additives. Chemical agents such as bentonite, weighting agents, inorganic salts, baseless polymers, organics, synthetic polymers and surfactants are often added in the configuration to improve the performance of water-based muds. Groundwater, drill cuttings, clay, etc. that are collected when drilling into the formation in the oil field. Its pH value is a little alkaline, generally 8.15-9.10, the moisture content is usually between 35% and 90%, and the solid phase particle size is generally between 0.01μm2 and 0.1μm2.

The properties of oilfield drilling mud are related to underground structures and rock properties. As the drilling depth increases, the downhole structure becomes more complicated, and the corresponding mud performance requirements and chemical configuration become more complicated. The corresponding pollutants in the solid waste discharged outside are also increasing, the content and the concentration are also increasing. Therefore, it is difficult to dehydrate and separate the water-based mud in oilfield drilling, and it will affect the quality and progress of the drilling project in severe cases.

09/28/202109/28/2021

Cost-effective shield Muck Treatment Equipment

As the country’s requirements for environmental protection are increasing, the construction waste generated during the vigorous development of urban and rural areas, especially the treatment of shield dregs, has become a problem faced by urban managers. How to carry out efficient shield dregs treatment and the effective protection of the environment has become a problem that needs to be solved urgently in urban development.

KOSUN has very rich experience in infrastructure construction, mud water treatment and other industries. As a professional shield muck treatment equipment manufacturer, it has developed a safe, environmentally friendly, efficient and cost-effective shield muck treatment price. Shield muck treatment equipment, which uses a belt conveyor system to transport the newly excavated muck from the depths of the tunnel to the hopper of the ground muck separation system. The final separated coarse sand and fine sand are lifted through the belt. The machine is transported to the truck for transportation, dewatering, separating and drying the muck in stages, which effectively solves the problem of muck transportation, realizes the reuse of inorganic raw materials and water resources, realizes the recycling and reuse of the muck, and protects the environment at the same time.

At present, the shield muck treatment equipment produced by KOSUN has been put into use in many places across the country, especially in the Guangzhou shield muck treatment market, which has obtained good feedback. KOSUN can customize suitable and economical shield muck treatment equipment for customers based on customer needs and combined with the actual situation on the site. Customers are welcome to consult.

08/16/202108/16/2021

Water-based Mud zero discharge and oil-based Mud zero discharge

Oil-based Mud zero discharge mainly for directional wells and ultra-deep wells. Directional wells and ultra-deep wells require an oil-based mud system to prepare the mud. The oil-based mud contains expensive diesel or white oil, and the oil-based drilling solids control system treats the oil-based mud. If the drilling cuttings still contain oily mud, if the mud is not treated on the ground, the mud will be wasted and the drilling cost will increase.

Water-based Mud zero discharge mainly for shallow wells. Water-based mud is mainly prepared by adding chemicals or industrial salt to the soil. The solids control system uses water-based mud drilling system. The drilling waste generated by the water-based mud drilling system also contains effective mud. Disposal will also cause waste of mud, which needs to be recycled without mud disposal.

Mud zero discharge is the key to drilling waste treatment. It is the result of improved drilling technology, replacing traditional mud pools, reducing drilling environmental pollution and improving the necessary methods for environmental protection. The current Mud zero discharge includes water-based Mud zero discharge and oil-based Mud zero discharge. The two methods of Mud zero discharge are determined according to the mud treatment system adopted in the drilling.

Mud (drilling fluid), which is used to lubricate the drill bit, cement the well wall and cool down during the drilling process. In the whole drilling process, mud is of great significance to reduce drilling accidents and improve drilling efficiency. Generally, water-based mud systems and oil-based mud systems are mainly used in drilling sites.

However, the Mud zero discharge through the secondary filtration separation and recovery of drilling waste, which directly saves a lot of drilling mud, especially oil-based mud. Therefore, Mud zero discharge is the key to drilling solids control and drilling waste disposal.