Natural asphalt is a product of petroleum transformation. Its main components are asphaltene, resin and gum. Used as a plugging and anti-collapse agent in drilling fluids, when the temperature of the formation is lower than the softening point of the asphalt, it can be used as a bridging material for plugging.
Quality Standards and Technical Requirements:
Natural asphalt, also known as earth asphalt or mineral asphalt, is a product of petroleum transformation. Its main components are asphaltene, resin, and gum. Used as a plugging and anti-collapse agent in drilling fluids, when the temperature of the formation is lower than the softening point of the asphalt, it can be used as a bridging material for plugging. When the formation temperature approaches or is slightly higher than the softening point of the asphalt, it can serve as deformable particles to enter formation pores or fractures, thereby effectively sealing them. When the formation temperature is higher than the softening point of the asphalt, the plugging effect may decrease, but it can still effectively improve the quality of the filter cake, enhance its lubricity, reduce high-temperature and high-pressure filtration loss of drilling fluids, and prevent wellbore collapse.
Usage: This product, in fine particle or powder form, can be used in drilling fluids as a controller for high-temperature and high-pressure filtration loss, wellbore stabilizer, lubricant, etc. The dosage is generally 1%-3%. It can also serve as a viscosifier and filtration loss reducer in oil-based drilling fluids. In larger granules, it can be used as a granular bridging agent in combination with other materials for bridging and plugging leaks. For example, it can be formulated into hard asphalt cement plugging slurry for plugging operations, with a formula of 50kg cement + 25 to 50L water + 20 to 90kg asphalt.
Packaging and Transportation: This product is packaged in inner plastic bags and outer moisture-proof kraft paper bags. Store in a cool, ventilated, and dry place. During transportation, handle with care and keep away from fire. If the product becomes lumpy, it should not be used.
