Month: September 2024

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.

2. 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.