The importance of waste oil-based drilling fluid treatment technology

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.

Innovative Solutions for Oil Drilling Waste: “The Future of Slurry Disposal”

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.

“Innovative Oil-Based Mud Treatment for Efficient Drilling Fluid Waste Management”

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.

Solids Control Equipment: A Key Component in Efficient Drilling Operations

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 equipment is 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.

Economic Benefit Evaluation of Drilling Waste Management

Economic Benefit Evaluation of Drilling Waste Management

At present, more and more customers have noticed the considerable prospects of domestic oil mud sand treatment projects, and drilling chip drying machines are one of the common separation methods of many oil sand separation methods. However, what is the economic benefit of the cuttings dryer used in the recovery of waste oil-based drilling fluids?

Drilling cuttings dryer
Let’s do a simple analysis:

  1. The oil content of drilling cuttings in oil-based drilling fluid is generally set at 20%, and the oil content of drilling cuttings is about 10% after being dried. The processing capacity of the dryer is about 10t/h, and the 25 tons of cuttings can recover 1 ton of oil-containing impurities (the drilling cuttings density is 2.5t/m3). After purification, 0.4 tons of oil is obtained. Each ton of oil can make a profit of 15,000 yuan, 0.4t×1.5 yuan /t= 6,000 yuan.

2, the centralized construction of the factory needs 7 personnel. The annual cost of personnel is about 1 million yuan (calculated by the approximate annual income of employees), and the daily cost of each person is about 397 yuan. It costs 2,778 yuan per day for seven people.

3, the equipment depreciation fee is paid 250÷3÷12÷30≈2315 yuan/day (the total production of equipment is calculated by 2.5 million yuan). Recycling 1 ton of oil needs to pay a depreciation fee of 2315÷24×3=289 yuan. (Solid control equipment shall be depreciated in 3 years, 360 days per year)

  1. Site construction and leasing fee 100÷3÷12÷30=926 yuan/day. (Site construction and leasing fees are calculated at 1 million yuan)

5, equipment electricity: according to the dryer per hour to deal with oil-based drilling cuttings 10 tons, the production of 1 ton of oil products needs 2.5 hours of electricity cost of 40×2×2.5×1≈200 yuan

6, vehicle usage fee: 30 tons of vehicles cost 1200 yuan per trip, 400 yuan per ton, each production of 1 ton of oil needs to transport 25×400=1000 yuan

  1. Diesel and water charge 50 yuan
  2. The equipment maintenance cost is about 50 yuan

9, other expenses about 200 yuan, (environmental protection, fire protection, going out, outsourcing, etc.).

6000-289-200-2778-1000-50-50-200-926=507 yuan

The two drying machines can produce 6.4 tons of oil products for 8 hours a day, generating 38,400 yuan and making a profit of 3224.8 yuan

A drilling solid control system is mainly used to control and separate solid substances in drilling fluid

During the drilling process, mud enters the formation through the drill pipe, and the drilling fluid is discharged together with the drilling waste after being used. Because mud is expensive and can damage the environment, the solid control system comes into being in this situation.

The solid control system of oil drilling is mainly to control and separate the solid substances in the drilling fluid, such as sediment and gravel, so that they can be recycled, also known as the mud purification system.

In the process of drilling, often encounter rock, gas, or underground hot springs, in the process of rock drilling, the huge friction of the rock is very harmful to the drill, and in the drilling encountered gas or hot springs easily cause kick, blowout, in this case will be used mud.

Mud is usually water, oil, or a mixture of oil and water that contains a large amount of suspended matter, such as jelly. Mud can be divided into water-based mud, oil-based mud, and mixed mud.

During the drilling process, the mud can effectively lubricate the drill bit, and the mud with barite and flocculent can effectively balance the bottom pressure and prevent blowouts and kicks.
The main equipment of a solid control system is a vibrating screen, desilter, degassing device, desilter, centrifuge, desilter pump, agitator, etc. This solid control equipment is like a series of different sizes of screens, through layers of filtration to achieve the purpose of purifying mud.

Mud gun: Solve the problem of drilling mud systems in an oilfield

In oil field drilling operations, mud systems play a critical role in delivering drilling fluid (mud) to the bottom of the well, maintaining wellbore stability, cooling the bit, reducing friction between the bit and the hole, and carrying cuttings from the bottom hole to the surface. High mud system… Operation is critical to the smooth running of drilling operations. However, mud systems often accumulate a large amount of mud residue after a long period of operation, resulting in reduced operating efficiency and damage to bottom-hole stability. To solve this problem, the mud gun-mud tank cleaning equipment came into being and became a helpful assistant in oil drilling operations.

  1. Working principle of the device

Mud gun-mud tank cleaning equipment uses the principle of high-pressure water flow and mechanical rotation to quickly wash and remove residual mud, cuttings, and solid particles from the mud system. Through the impact of high-pressure water flow, the equipment can quickly wash the mud residue attached to the wall of the mud tank, improve the cleanliness of the mud system, and maintain the efficient operation of the system.

2. Device features

High… Cleaning: The equipment adopts a combination of high-pressure water flow and mechanical rotation, which can… Clean the mud tank, mud gun, and other equipment, and keep the system clean.

Water conservation: equipment adopts high-pressure water flow technology, nozzle design fine… Can maintain the cleaning effect at the same time… Maximize the conservation of water resources.

Easy to operate: The equipment is compact and easy to operate, and only the operator can click the button to complete the cleaning task and improve the working efficiency.

Strong adaptability: The equipment can be customized according to the needs of different mud systems, to adapt to different specifications, models of mud tanks, and mud guns.

  1. Application scope

Mud gun-mud tank cleaning equipment is widely used in oil drilling operations, which can not only improve the cleanliness of the mud system, and extend the service life of the equipment, but also reduce the maintenance cost and improve the operation efficiency. The equipment is also suitable for other industrial areas where cleaning mud systems are required, such as mines, construction, etc.

Conclusion

The emergence of mud gun – mud tank cleaning equipment has brought a new solution for oilfield drilling operations. Its features of efficient cleaning, water saving, and easy operation make the maintenance of the mud system more convenient and efficient. In the growing oilfield drilling industry, this equipment provides reliable technical support for improving operational efficiency and ensuring operational safety.

Oil drilling waste, how to turn waste into treasure?

Oil drilling waste is the waste produced by oil and natural gas in the drilling process, which contains a large number of chemical auxiliaries and is difficult to deal with, and the disposal cost is high, and the final destination of waste after treatment is difficult to completely resource. At present, the commonly used solid-liquid separation technology uses chemical flocculation, sedimentation, and mechanical separation to separate the solid and liquid two phases in drilling waste, and then carry out terminal treatment respectively. After the filtrate is transported to the treatment field for pretreatment, it is re-injected, water-treated, and reused by the drilling team. The problem is that the recovery rate is low and the treatment cost is high. The mud cake is transported to the brick factory or cement factory for use, and the utilization rate is very low. Most of the mud cake is in the stacking or waiting stage.

After treatment, the drilling waste is added with a curing agent, compacted by a road roller, and solidified into a dense plate through physical and chemical reactions with non-machine binder, soil, and water. Instead of cement, lime, gravel, and other materials, it is used for subgrade treatment of various grades of roads and foundation treatment of various construction sites, and can also be directly paved low-grade roads, landscape roads, or temporary roads. It can also be used in agricultural and water conservancy construction of earth engineering. While saving a lot of construction costs, it also avoids the mining, processing, transportation, storage, and use of natural road-building materials, and reduces vegetation destruction, soil erosion, coal, and fuel consumption, which is of great significance for resource conservation and ecological protection.

This new method of final disposal of oil drilling waste eliminates the cumbersome process, eliminates the need for separate treatment of solid and liquid phases, eliminates the need for costly waste disposal on the well site, and leaves no traces of pollution. Through supporting environmental protection agents and automation equipment, the three steps are completed in one go, turning dirty drilling waste into usable building materials, no waste is generated in the process and the final product, and no secondary pollution is generated. Using this technology, the pollution traces of these wastes from the surface of our beautiful planet are “erased”, and turn into an available harmless resource, turn waste into treasure, use these wastes, save part of valuable building materials resources, “benefit today, benefit all generations”, has far-reaching significance and great contribution to the environmental protection and petroleum industry in China and even the world.

Kosun Machinery Co., Ltd. is a domestic environmental protection and energy comprehensive service enterprise with global resources and international vision. Has a highly dedicated, technologically advanced, experienced technical management expert. The company’s business field is “oil and gas fields, mine soil, sludge treatment”, has participated in several oil fields and sewage treatment plants for sludge treatment projects, involving industrial pollution sites, oil, sludge, waste waste, and other professional treatment, the effect is obvious. Always adhere to the “people-oriented, leading technology, win-win cooperation” development strategy, professional qualifications, professional teams, technical capabilities, case experience, partners and corporate culture, and other aspects of continuous accumulation and development, to form their characteristics of development advantages, establish a good image and reputation. In the future, while adhering to and improving the development strategy, we will build a new development platform, open up a new development path, constantly improve the goal, and strive to achieve the greatest value and the most trusted environmental restoration enterprise.

Why is a solid control system important in drilling operations?A solid control system is crucial in drilling operations for several reasons:

  1. Removal of solids: During drilling, cuttings and other solids are generated that can contaminate the drilling fluid. KOSUN solid control system helps remove these solids from the drilling fluid, ensuring its cleanliness and maintaining its desired properties. Clean drilling fluid is essential for efficient drilling, preventing equipment damage, and maximizing drilling performance.
  2. Wellbore stability: Effective solid control helps maintain wellbore stability by removing drilled solids that can cause formation damage or lead to unstable wellbore conditions. Clean drilling fluid with controlled solids content helps minimize the risk of wellbore collapse, stuck pipe, or other drilling incidents.
  3. Equipment protection: Solids such as sand, shale, or metal cuttings can damage drilling equipment, including pumps, mud motors, and drilling bits.KOSUN solid control system removes these abrasive solids, protecting the drilling equipment from excessive wear and extending their lifespan. This reduces downtime and maintenance costs associated with equipment repair or replacement.
  4. Mud properties control: The drilling fluid, also known as drilling mud, has specific properties that are crucial for successful drilling operations. These properties include viscosity, density, and gel strength. KOSUN solid control system helps maintain the desired mud properties by removing solids that can alter these properties. Consistent mud properties ensure efficient drilling and accurate formation evaluation.
  5. Environmental protection: Proper solid control is essential for environmental protection. It helps prevent the discharge of drilling fluids with high solids content, which can negatively impact the environment. By removing and properly managing the solids,KOSUN solid control system helps comply with environmental regulations and reduces the ecological footprint of drilling operations.
  6. Cost-effectiveness: Implementing an effective solid control system can lead to cost savings in drilling operations. By removing solids from the drilling fluid, it reduces the consumption of drilling fluids, lowers disposal costs, and minimizes the wear and tear on drilling equipment. This results in improved overall drilling efficiency and reduced operational expenses.

In summary, KOSUN solid control system plays a vital role in drilling operations by removing solids from the drilling fluid. It ensures wellbore stability, protects drilling equipment, controls mud properties, promotes environmental protection, and contributes to cost-effectiveness. Implementing a reliable and efficient solid control system is essential for safe, efficient, and successful drilling operations.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 13379250593
Contact person:Stella Xiang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

What are the solid phase control methods for drilling fluids?

What are the solid phase control methods for drilling fluids?

To control solid phase in drilling fluid is to remove useless solid phase and retain useful solid phase. There are the following methods:

Ⅰ. Settling Method: This method involves allowing larger solid particles to settle down by circulating the drilling fluid through a large sedimentation tank when it reaches the surface.

Ⅱ. Dilution Method: This method involves adding dispersing media (such as water or oil) to the drilling fluid to reduce the solid phase content. Dispersing agents (such as iron chromates) can also be added to reduce the viscosity of the drilling fluid and improve its ability to carry cuttings.

Ⅲ. Mechanical Equipment Method: This method involves separating solid particles from the drilling fluid using mechanical equipment. This includes vibrating screens, desanders, desilters, centrifuges, and other equipment.

Ⅳ. Chemical Control Method: This method involves adding flocculants to the drilling fluid to increase the aggregation of solid particles, facilitating settling or mechanical removal.

Today, we will mainly introduce the mechanical desanding method. There are various mechanical desanding methods, including vibrating screens, filter presses, vacuum filters, centrifugal filters, centrifugal settling, and cyclone desanders. Due to the relatively high flow rate during core drilling operations and the comparatively low volume of slurry to be treated, cyclone desanders are commonly used. They have desanding capacities several hundred times higher than gravity desanders and can remove particles of around 20 microns. The structural principle of a cyclone desander is shown in the diagram.

Diagram of Centrifuge Bowl

1、Connection joint;2、Big-end bearing pedestal;3、Big-end bearing;4、Big-end inner bearing;5、Cylindrical bowl;6 、Conveyor flight;7、Conveyor mandrel;8、Small-end inner bearing;9、Central tube;10、Small-end bearing;11、Driven wheel of main motor;12、Small-end bearing pedestal;13、Small-end plate;14、Solid outlet;15、Tapered bowl;16、Conveyor outlet;17、Big-end plate;18、Liquid outlet;19、Splined shaft