Venezuela is a country of oil and gas industry in South America, with rich oil and gas resources. Its petroleum exploitation, refining and processing and port tanker operation industries are developed, producing a large amount of oily sludge every year. 76620 tons of oily wastes have been cleared out in Lake Malacaibo area only, and the oil content of oily sludge is between 23% - 56%, mixed with crude oil residues, sand particles, oil pollution and other impurities, mainly from the exploitation of Lake Malacaibo oil and gas field, the oil refinery in Caracas and the port tanker cleaning operation. The country has strict supervision on oily sludge disposal. In accordance with Law on Hazardous Substances, Materials and Wastes and relevant specifications of petroleum industry, it is expressly prohibited to pour oily sludge into water body and soil. It is required that the oil recovery rate of oily sludge shall be ≥ 95%. After treatment, the wastewater shall comply with relevant discharge standards (pH 6-9, concentration of heavy metals ≤ 0.5mg/L) and the oil content of residue shall be ≤ 0.3%, which can be used for soil improvement or safe landfill. Violating enterprises will face high fines and production ban. At present, the oily sludge treatment process in Venezuela is simple and crude, mainly adopting natural sedimentation, simple solidification and other methods, with problems such as low oil recovery rate, serious secondary pollution, equipment easy to stick to the wall, short service life, etc; At the same time, oil and gas fields are mostly distributed around and in remote areas of Lake Malacaibo, characterized by high temperature, humidity and heat, complex road conditions, high requirements for corrosion resistance and mobility of equipment. Moreover, it is necessary to adapt to unstable power and low cost operation and maintenance requirements. Therefore, it is urgent to provide a corrosion resistant, compliant and efficient oily sludge treatment equipment suitable for the local oil and gas industry, protect the ecological security of Lake Malacaibo and promote the green development of the oil and gas industry.

China Yongle Environmental Protection Engineering R&D "Venezuela Anti-corrosion Matching Specification" oily sludge treatment equipment, accurately solving the pain points of local oily sludge treatment: According to the characteristics of oily sludge in Venezuela and the characteristics of high temperature, damp and hot climate, anti-corrosion and anti-sticking cabin+fully enclosed negative pressure pyrolysis structure are adopted, which can withstand high temperature, damp and hot conditions, salt and alkali conditions, effectively solve sludge wall adhesion and equipment wear problems during pyrolysis, extend the service life of the equipment to 7.5 years, adapt to the needs of remote areas and complex working conditions, effectively prevent oil leakage and protect the water ecology of Maracaibo Lake. The core is equipped with the triple process of "multi-stage screening+medium-temperature oxygen-free pyrolysis+oil-water separation". First remove 99.2% sand particles and metal chips through simple intelligent screening system to reduce the difficulty of pyrolysis, and then separate the oil with 482 ℃ medium-temperature oxygen-free pyrolysis technology. The oil recovery rate reaches 95.1%. The recovered oil can be directly returned to the local refinery for refining. The combustible gas generated by pyrolysis can supply 42% of the energy consumption of the equipment, realize energy recycling and reduce the operating cost. The tail gas is fully in compliance with the Venezuelan air pollutants emission standard after deep purification, and the waste water after treatment can be recycled for equipment cleaning or discharged into the park sewage treatment system. The residual oil content is ≤ 0.20%, which can be used for soil improvement without secondary pollution. It has passed the overall compliance review of the Ministry of Eco-social Affairs, which conforms to the green development requirements of the oil and gas industry and assists PDVSA (Venezuelan National Petroleum Corporation) in implementing environmental protection responsibilities.

The whole industry chain scene is suitable to cover all kinds of disposal requirements: in the operation area of Maracaibo Lake Oil and Gas Field, mobile equipment is flexibly deployed with the drilling platform, with a daily treatment capacity of 42 tons. It is specialized in the disposal of oil-based drilling mud and drilling rock debris, so as to avoid soil and Malacaibo Lake water body pollution caused by sludge transportation leakage. It is suitable for remote areas and complex road conditions, meeting the disposal specifications of the petroleum industry; In the refineries in Caracas and Malacaibo, the daily processing capacity of large centralized equipment is 85 tons, which is seamlessly linked with the oil supply system in the plant area to form the closed-loop operation of "sludge - oil products - energy", greatly improve the resource utilization rate, reduce the production cost, help enterprises to achieve the reduction and recycling of hazardous wastes, and reduce the pollution to the Maracaibo Lake; In the tanker operation area of the port, the daily treatment capacity of the modular equipment is 67 tons, and the oily sludge generated from the tanker cleaning is treated on site. The high-efficiency anti-seepage design is adopted to prevent pollution to surrounding water bodies and soils, and the compliance certificate for oily sludge disposal can be handled by assisting the ship; In the small oil refining workshop, the daily processing capacity of mini equipment is 7.5 tons, which is low cost and easy to operate. The oil recovery revenue can quickly cover the equipment input, which is suitable for the operation requirements of small workshops; Oily sludge treatment shall be completed on the site of small equipment around the oil depot to reduce the storage and transportation costs and avoid oil pollution to groundwater, which conforms to the water resources protection planning of Venezuela.

Exclusive compliance and service guarantee: the equipment has passed the full compliance review and environmental protection certification of the petroleum industry by the Ministry of Eco-sof Venezuela. It can assist enterprises and vessels to complete the compliance filing and disposal permit handling, adapt to the local oil and gas industry environmental protection supervision requirements, and carry out in-depth cooperation with PDVSA (Venezuelan National Petroleum Corporation) to assist them in implementing the pollution control responsibilities of the Maracaibo Lake. Standardized service bases are set up in Caracas and Maracaibo to store oil-resistant, corrosion-resistant and anti-stick core spare parts, realize 24-hour maintenance response in core areas, and provide on-site maintenance services in remote oil and gas field operation areas; Provide Spanish bilingual operation training and process guidance, simplify equipment maintenance process, adapt to local operation and maintenance level, and focus on training on cleaning and maintenance skills of anti-stick bulkhead; The equipment procurement cost is only 45% of that of similar products in Europe and America, and the income from oil recovery and energy consumption can be covered and invested within 7 months to help the green and low-carbon development of oil and gas industry in Venezuela, protect the ecological safety of Maracaibo Lake, promote the harmless, recycling and normalized disposal of oily sludge, and comply with the ecological protection strategy of Venezuela and the Law on Hazardous Substances, Materials and Wastes.

Yongle Environmental Protection is mainly engaged in the research and development, production and sales of complete sets of technical equipment for organic solid waste disposal and comprehensive utilization. Production and manufacturing, domestic waste treatment equipment, tire pyrolysis equipment, medical waste disposal equipment, hazardous waste disposal equipment, and achieve efficient and comprehensive utilization of resources through independently developed low-temperature anaerobic pyrolysis equipment technology solutions.

Tags：Water safety protection for seepage prevention of oil sludge equipment in Venezuela,Oil sludge treatment equipment,YONGLE GROUP