Juyi Stainless Steel Bag Filter Helps Middle East Oil Service Companies Upgrade Their Oil Filtration Systems

The on-site environment of the oilfield has significant temperature variations, severe sandstorms, and the oil often contains pipeline rust debris, sealant fragments, and dust particles brought in during transportation. The original filtering equipment has poor adaptability to different types of oil and the flow rate significantly decreases when processing high-viscosity lubricating oil.

After prolonged contact with mineral oil-based lubricants and diesel, the rubber sealing components of the original filter have experienced swelling, hardening, and even cracking, resulting in frequent leakage problems. This not only causes waste of oil but also poses potential safety hazards on-site.

The space of the oil supply vehicle is limited and the operation passage is narrow. The original filter used a threaded cover. Each time a new filter bag needs to be replaced, a special wrench is required. When working at heights, it is both laborious and time-consuming, seriously affecting the transfer efficiency of the oil supply vehicle.

In the desert environment, wind and sand erosion as well as condensation water adhering due to the temperature difference between day and night have caused rust spots and peeling paint on the filter housing, which affects the overall lifespan of the equipment and the management image on site.

The shell is made of 304 stainless steel with a sandblasting surface treatment. The sandblasting process not only removes the machining burrs but also creates a uniform matte surface. Compared to ordinary polishing or painting layers, the sandblasted surface is less prone to scratches and rust initiation points in the desert sand environment, and its weather resistance is significantly enhanced.

The sealing solution is made of nitrile rubber. Nitrile rubber has excellent tolerance to mineral oil-based lubricants, diesel, and hydraulic oil. After coming into contact with the oil products, it maintains stable elasticity and sealing performance, thus solving the leakage problem from the material source.

The equipment adopts a side-in and bottom-out flow direction and a quick-opening cover with lifting ring structure. This design enables the operator to easily complete the filter bag replacement on the narrow operation platform of the oil supply vehicle without the need for tool assistance. The single bag replacement time is controlled within ten minutes. The 1/2-inch exhaust valve at the top ensures the smoothness of exhaust during the first startup and filter bag replacement of the system, avoiding the impact of cavitation on the downstream precision components.

The filter bags are configured as 2# standard size (180×810mm), made of PP material with a precision of 50 microns. This precision level can effectively intercept common iron oxide debris, sealing fragments and sand particles in the oil products at the oilfield site, while maintaining sufficient flow area to ensure that the oil supply vehicle can continuously and stably supply oil at the rated flow rate.

The batch sampling results of the 50-micron PP filter bags show that the cleanliness of the lubricating oil and diesel after filtration continuously meets the ISO cleanliness grade requirements specified by the equipment manufacturers. The rate of on-site equipment failure repair due to oil contamination has decreased year-on-year.

The nitrile rubber sealing ring remains stable after continuous contact with various oils. After several weeks of equipment operation, there is no sign of leakage. Simultaneously, the on-site oil consumption and the workload for ground cleaning have decreased.

The quick-opening ring structure is highly recognized by frontline operators. It can be operated without using a wrench in high-altitude and narrow spaces. The bag-changing process has been shortened from nearly half an hour to within ten minutes, significantly reducing the labor intensity and also shortening the preparation time for the oil supply vehicle before moving.

The 304 stainless steel casing that has undergone sandblasting has withstood months of exposure to wind and sand. The surface shows no rust spots or obvious wear and tear. It only requires regular blowing with compressed air to remove accumulated dust to maintain a clean state. The customer is satisfied with the equipment's long-lasting and new-like appearance.