In the process of oil and gas drilling, water-based mud is generally used in shallow Wells, and oil-based mud is used in deep Wells. Conventional solid control equipment can effectively recover heavy stones and useful drilling fluid items. Suppose these solid phase parts containing heavy metals and compounds (about 12% to 18% oil content) are discharged without treatment. In that case, long-term precipitation will cause great harm to the natural environment such as vegetation, soil, groundwater, and human living environment.
With the continuous improvement of environmental protection requirements, higher requirements have been put forward for drilling site cuttings treatment. The emergence of a drilling waste treatment and purification system can not only solve the site’s environmental problems but also carry out secondary recycling and treatment of the waste generated by the on-site solid control system. While retaining useful mud to the maximum, the drilling cuttings after reprocessing are centrally solidified. Reduce the damage to the surrounding environment.
To effectively dispose of oil-based mud drilling waste, it is necessary to use professional oil-based mud non-landing equipment and systems. The equipment used to deal with oil-based mud is: a screw conveyor + drilling cuttings dryer + environmental protection centrifuge, through this equipment, can effectively dispose of the well site waste mud, and the treated drilling cuttings can also be reused.
Oily sludge (hereinafter referred to as “sludge”) is a substance composed of water, mud, oil and other impurities. Due to the diversity of sources of sludge, its composition is complicated and it is difficult to control. Its main sources include ground oil spill, ground oil sludge, tank bottom sediment and oil sludge produced in the process of refining. These sludge not only pollute the environment, but also affect the normal progress of production and life. Therefore, effective treatment of oily sludge is particularly important.
Oily sludge treatment method
At present, the main methods for the treatment of oily sludge include physical method, chemical method, biological method and hot washing method. Among them, the hot wash method stands out among many methods because of its efficient and clean characteristics.
Physical method: the sludge is separated and treated by physical means such as gravity sedimentation and centrifugal separation. This method is suitable for the separation of impurities and oils with large particles, but it cannot completely remove small particles and organic matter.
Chemical method: Use chemical reaction to change the physical properties of sludge, such as adding chemical agents to separate oil and water. However, chemical methods often have shortcomings such as residue of chemicals and secondary pollution to the environment.
Biological method: The use of microorganisms to degrade organic matter in sludge, although this method is environmentally friendly, but the treatment cycle is long, and the environmental conditions are high.
Hot wash method: It is one of the most effective oily sludge treatment methods at present. The hot washing method mainly separates the impurities and oils in the sludge by hot water and detergent under high temperature and pressure environment. The method can effectively remove small particles and organic matter, and the treated sludge is of high quality and can meet the standard of reuse.
Third, the steps of hot washing treatment of oily sludge
Pretreatment: Preliminary classification and screening of oily sludge to remove large impurities.
Hot washing process: the pre-treated oily sludge is placed in a high temperature and high pressure environment, and stirred by adding detergent. In this process, oils and impurities are broken down and separated under the action of detergents.
Solid-liquid separation: The mixture after hot washing is separated by solid-liquid separation equipment to obtain solid waste and clean liquid.
Waste treatment: Further processing and treatment of solid waste, so that it meets environmental protection emission standards or can be reused standards. The clean liquid can be reused or disposed of after further treatment.
Fourth, the advantages of hot washing method
High efficiency: Hot washing method can quickly treat a large number of oily sludge in a short time.
Cleanliness: Oily sludge treated by hot washing method has high cleanliness and good quality.
Environmental protection: there is no secondary pollution in the hot wash treatment process, and the treated waste can meet the environmental discharge standards or reuse standards.
V. Conclusion
With the rapid development of industry and the improvement of human awareness of environmental protection, the treatment of oily sludge becomes more and more important. Hot washing method is the best choice to treat oily sludge because of its high efficiency and clean characteristics. However, in the specific implementation process, it is also necessary to pay attention to environmental protection, resource reuse and other issues, to ensure that no new pollution sources are generated in the process of treatment, and to achieve true green production and life.
A brief introduction to the concept of oil-based mud
Oil-based mud, as the name suggests, is a drilling mud with oil as the main component. In oilfield drilling operations, oil-based mud is widely used because of its excellent lubricity, sand-carrying ability, and well-wall protection. However, as drilling operations proceed, oil-based mud mixes with cuttings and various chemical additives to form complex mud systems.
Second, the importance of the treatment of oil-based mud
The improper disposal of oil-based mud will cause serious pollution to the environment. Therefore, how to effectively deal with oil-based mud and realize non-landing treatment has become an important environmental protection measure in oilfield drilling operations.
Third, oil-based mud treatment scheme and equipment
For the treatment of oil-based mud, solid-liquid separation technology is mainly adopted. This requires the use of specific processing equipment and systems. One of the key equipment is the large capacity continuous feed unit, which can handle up to 40-60 tons per hour and can efficiently handle large quantities of oil-based mud.
Fourth, Kosun oil-based mud non-landing system features and advantages
Kosun oil-based mud non-landing system adopts advanced solid-liquid separation technology, with the following features and advantages:
Large capacity continuous feeding: The system has a large capacity continuous feeding device, which can efficiently deal with oil-based mud produced by oilfield drilling.
Efficient solid-liquid separation: Through efficient solid-liquid separation technology, the liquid content of drilling cuttings is minimized, and the solid phase oil content after treatment is less than 5%, so as to achieve effective oil-water separation and recover a large number of reusable drilling fluids.
Integrated control and monitoring: The system adopts PLC integrated control, with an automatic alarm indicator, which can monitor temperature, torque, oil, and running time in real-time, easy to operate, safe, and reliable.
Convenient maintenance and transportation: The Kosun oil-based mud non-landing system is designed with a collapsible guardrail and walkway, which is convenient for operators to perform routine maintenance disassembly, and transportation.
Environmental protection and economic benefits
The application of the Kosun oil-based mud non-landing system, not only realizes the efficient treatment of oil-based mud and solid-liquid separation, effectively protects the environment, but also recovers a large number of reusable drilling fluids, reducing drilling costs. At the same time, the automatic control and safe and reliable monitoring function of the system also improve the operation efficiency and safety.
Summary: Oil-based mud treatment in oilfield drilling is an important environmental protection project. With its characteristics and advantages of large capacity continuous feeding, efficient solid-liquid separation, integrated control and monitoring, and convenient maintenance and transportation, the Kosun oil-based mud non-landing system provides an efficient, safe, and environmentally friendly oil-based mud treatment solution for oilfield drilling operations.
Research and application of drilling fluid environmental protection treatment technology
In the process of oilfield drilling, the total amount of waste is large, the content of pollutants is high, the pollution control of waste is concentrated in the end treatment, the degree of resource utilization is low, the cost is high, the pollution control in the process of drilling can not be realized, and the ecological environment of the oilfield is seriously affected. Aiming at the key technical problems of environmental protection in the drilling process, with the goal of “reduction, harmless and resource utilization”, Xi ‘an Kosun has carried out theoretical research, equipment research and development, technical research and integrated application, and conquered the core technologies of the reduction of drilling waste during drilling and the harmless treatment and resource utilization of drilling waste at the end. The environmental treatment technology of drilling fluid has been applied on a large scale in oil drilling areas at home and abroad.
Preliminary separation of solid and liquid
The initial separation of solid and liquid is a process in which the liquid phase after initial separation by solid control equipment (vibrating screen, desilter, desilter and centrifuge) on the drilling site enters the drilling fluid tank for recycling, and the solid phase is transmitted by spiral conveyor to the sand desilter for primary deoiling and then enters the cuttings cleaning and drying machine for separation and discharge of cuttings up to the standard.
The tank is equipped with a mixer, dosing funnel, and pump. After the solid phase enters the sand deoiling tank, turn on the mixer, and add an appropriate amount of water and drugs that can separate the oil and water, so that the oil substances mixed in the solid phase are initially separated and floating on the surface of the mixture, and then use the pump to pump the oil substances away to achieve the first stage separation of the oil substances, and finally stir the solid-liquid mixture in the lower part of the tank and pump it into the cuttings cleaning and drying machine.
The cuttings cleaning and drying machine is equipped with a high-pressure water washing system and rotary dehydration system. While the high-pressure water washing system flushes the cuttings, the rotary dehydration system rotates at high speed, and the mixture realizes the separation of cuttings and drilling fluid sewage under the action of centrifugal force. If the separated cuttings meet the national standard “Comprehensive Sewage Discharge Standard” (GB 8978-2002) level 1 discharge standard, they will be transported from the well site or used for other purposes, otherwise continue to clean until they meet the requirements of the discharge standard; The separated sludge and drilling fluid water enter the sewage storage tank.
Piling mud treatment equipment is specially for piling engineering, the construction site is equipped with mud treatment equipment, mainly used in the construction process of large-scale piling engineering mud treatment. The use of piling mud treatment equipment for mud treatment at the construction site can effectively improve the construction efficiency of the construction site, reduce the labor intensity of workers at the construction site, improve the construction environment, and reduce the cost of the entire project.
First, the generation of piling mud 1, due to the complex geological structure, drilling construction process, groundwater pressure, and impact forces being huge, the need for mud to maintain the stability of the drilling. 2, during the drilling process, the drill pipe, drill bit, and wall protection are easy to produce vibration, resulting in hole wall collapse, when the hole wall collapses, the mud in the hole must be fixed. 3, in the process of drilling, due to the vibration of the drill tool or the excessive lifting of drilling and other reasons, the drill pipe will produce a large vibration or the phenomenon of excessive lifting of drilling, resulting in mud. 4, during the drilling process, a mud layer will be formed in the hole to protect the hole wall. 5, when drilling, in order to ensure the quality of drilling and prevent the occurrence of drilling collapse, it is necessary to inject mud in the hole. 6, when it is found that there is a sand surge in the hole, in order to protect the hole wall from collapsing, the mud in the hole must be treated.
Pollution of piling mud 1, the organic matter in the mud will pollute the water quality, reduce the oxygen content of the water, and inhibit the growth of algae, affecting the life of aquatic animals such as fish. 2, the harmful substances contained in the mud will also make the water black and smelly, affecting the quality of the water environment. 3, the mud contains a large number of sediment particles and a large number of microorganisms, these substances will breed mosquitoes and pollute the air. 4, the mud contains a large number of inorganic salts, when the temperature rises, it will decompose a large number of toxic gases, resulting in noise affecting the life and work of residents. 5, mud also contains heavy metal ions, radioactive elements, and other harmful substances to the human body.
Third, piling mud treatment equipment and environmental protection treatment system
Piling mud treatment equipment has a mud pump, filter press pump, screening equipment, plate and frame filter press
Environmental treatment system: First of all, the site piling mud is sent to the mud pool, and then the mud is screened by the screening equipment, and the sifted mud is passed into the plate and frame filter press through the special pump for solid-liquid separation. The extruded dry mud cake is transported to the designated area, and the water is discharged and recycled through the filter press.
Iv. Summary In the process of piling construction, if the mud is not treated, it will cause some pollution to the environment and have an adverse effect on the quality of the project. Therefore, the mud treatment in the piling construction process is very important. In the process of piling construction, appropriate mud treatment equipment should be selected according to the site conditions and mud properties to achieve the purpose of protecting the environment and ensuring the quality of the project. When using piling mud treatment equipment for mud treatment, it is necessary to choose the appropriate equipment for mud treatment according to the site situation to achieve the best results.
In this ever-changing era, the development of science and technology is constantly promoting the progress of all walks of life. In the field of oil drilling, the reliability of equipment has a direct impact on the production efficiency and cost of oil fields.
We, as a professional oilfield drilling equipment supplier, are committed to providing high-quality equipment to meet a variety of complex drilling needs.
Our company has a long history and rich experience, large scale, strong technical force, with independent research and development and production and sales team, KOSUN team can study the entire working condition, to provide customers with customized design services. From design to functional configuration, every detail is carefully considered to ensure that the equipment can be integrated into the customer’s construction process to achieve the best performance.
In order to meet the needs of different customers, we provide personalized customized services, we can design suitable drilling equipment according to the specific needs of customers and geological conditions.
We have many successful cases, not only to meet the needs of the domestic market but also exported overseas, all over the world. Whether it is the cold Arctic or the hot desert, our equipment can run stably. As a professional manufacturer of solid control equipment, our products and services have been highly recognized by the market. Provide solutions for customers.
If you have any questions about our products or need more information, please feel free to contact us. +8613379250593 (WhatsApp). Our professional team will be happy to serve you. Let’s work together to promote the development of the environmental protection industry.
With the development of oil and gas exploration and development in China, more and more multi-branch Wells, Horizontal Wells, and complex geological Wells are drilled, and the problem of wellbore stability is becoming more and more prominent. Oil-based drilling fluid technology receives more and more attention and continues to develop, and the corresponding amount of waste oil-based drilling fluid is increasing.
At present, a considerable amount of abandoned drilling oil base mud is directly used in landfill or re-injection without treatment, which not only wastes a lot of mineral oil resources, but also leads to soil, surface, and groundwater pollution, which directly or indirectly causes great harm to animals, plants and human health.
Due to the increasingly strict requirements of environmental protection departments on environmental pollution control, the development of a green circular economy has become the key to sustainable development, and a large number of waste oil-based drilling fluids have no safe and effective way out, which has become a serious burden on oil fields. From the perspective of environmental protection and economic benefits, it is particularly urgent and important to find an economical and efficient waste oil-based drilling fluids treatment and oil recovery technology.
Xi ‘an Kosun waste oil-based drilling fluid harmless treatment technology just solved this problem, our company has formed a complete set of oil mud drilling fluid treatment technology, that can achieve clean drilling mud, promote the coordinated development of oil and gas exploration and development and environmental protection, is of great significance to the development of the entire oil industry.
Xi ‘an Kosun oil-based drilling fluid harmless treatment system features: 1, large capacity continuous feeding device, processing capacity of up to 40-60 tons per hour; 2, efficient solid-liquid separation, so that the liquid content of drilling cuttings is minimized, the solid phase oil content after treatment is less than 5%, effectively separating and recovering a large number of reusable drilling fluid; 3, PLC integrated control, with automatic alarm indicator, can monitor temperature, torque, oil, and running time, easy to operate, safe, and reliable; 4, collapsible guardrail and walkway, easy to operators daily routine maintenance and disassembly and transportation.
The oil drilling industry has long produced large amounts of waste, particularly in the form of oil slurry. This waste consists of a mixture of oil, water, and solid particles, posing significant environmental and logistical challenges to oil companies. However, with the development of innovative treatment technologies, the future of sludge management looks brighter than ever.
One of the most promising solutions for slurry treatment is the use of advanced separation and filtration processes. These technologies effectively separate oil, water and solid particles, thereby recovering valuable resources and reducing waste volumes. By implementing these processes, oil companies can not only minimize their impact on the environment but also increase operational efficiency and cost-effectiveness.
Another key development in sludge treatment is the utilization of thermal desorption technology. The process involves heating an oil slurry to high temperatures, causing the oil to evaporate and separate from the solid particles. The recovered oil can be reused or sold, while the remaining solids can be safely disposed of or reused in other applications. Thermal desorption provides a sustainable and efficient method for managing slurry waste, reducing the need for traditional disposal methods such as landfills or incineration.
Furthermore, the integration of bioremediation technologies shows great potential in treating oil slurry waste. By harnessing the power of naturally occurring microorganisms, bioremediation can remediate contaminated soil and water by breaking down and degrading the organic components of the mud. This eco-friendly approach not only mitigates the environmental impact of oil slurry waste but also promotes the restoration of affected ecosystems.
As demand for oil continues to grow, the development and implementation of these innovative treatment technologies is critical to the sustainable management of oil drilling waste. By adopting these advancements, oil companies can minimize their environmental footprint, comply with regulations, and contribute to a more sustainable and responsible oil industry. The future of sludge handling is indeed promising, with these innovative solutions paving the way for a cleaner, more efficient oil drilling industry.
Oil drilling waste slurry disposal is an important aspect of the oil and gas industry as it directly impacts the environment and public health. Effective disposal of oil drilling waste slurry is critical to minimizing environmental impact and ensuring compliance with regulations. Here are some key strategies for effectively disposing of oil drilling waste slurry.
First, it is crucial to separate the solid and liquid components in the waste oil slurry. This can be achieved through mechanical separation techniques such as centrifugation or filtration. By removing solid particles from the slurry, the liquid portion can be processed more easily and the overall volume of waste can be reduced.
Once the solid and liquid components are separated, the next step is to process the liquid portion to remove contaminants and impurities. This can be done through various methods such as chemical, biological or thermal treatment. Chemical treatment involves the use of specific chemicals to break down and remove contaminants from the slurry. Biological treatment uses microorganisms to degrade organic compounds in the slurry, while thermal treatment involves the application of heat to evaporate and separate contaminants from the liquid.
In addition to disposing of the liquid portion, it is also important to properly manage the solid waste generated during the treatment process. This may involve dewatering solid waste to reduce its volume and facilitate proper disposal or recycling.
In addition, the use of advanced technologies such as electrocoagulation, membrane filtration or oxidation processes can significantly improve the processing efficiency of oil drilling waste oil slurry. These technologies help achieve higher levels of contaminant removal and reduce the overall environmental impact of the treatment process.
It is also important to prioritize the reuse and recycling of treated slurries whenever possible. By recycling and reusing treated slurry, waste generation can be minimized, resulting in cost savings and environmental benefits.
In summary, efficient disposal of oil drilling waste slurries requires a combination of mechanical separation, efficient treatment methods, advanced technologies, and a focus on waste minimization and recycling. By implementing these strategies, the oil and gas industry can effectively manage oil drilling waste slurry while minimizing its impact on the environment.
In the oil and gas industry, the efficient management of drilling waste is crucial for both environmental protection and operational cost-effectiveness. Solids control equipment plays a vital role in this process, ensuring that drilling fluids are properly managed and recycled, while also minimizing the environmental impact of drilling operations. Additionally, the use of mud-zero discharge equipment and oily sludge treatment equipment further enhances the overall efficiency and sustainability of drilling activities.
Solids control equipmentis designed to remove solid particles from drilling fluids, ensuring that the fluid properties are maintained within the required specifications for efficient drilling operations. This equipment typically includes shale shakers, desanders, desilters, and centrifuges, all of which work together to separate and remove solid particles from the drilling mud. By effectively controlling the solid content in the drilling fluid, solids control equipment helps to prevent equipment wear, maintain wellbore stability, and reduce the overall cost of drilling operations.
