Optimisation of the production process of block gravel filters

Abstract

Block gravel filters are widespread efficient filtration systems used in oil and gas wells. Their use increases oil production and reduces well contamination. It extends the service life and reduces well maintenance costs. They reliably protect the well from accidents and minimise environmental risks. They consist of layers of gravel of different grain sizes, which are stacked on top of each other and connected by a filter string. Hydrocarbons coming from the well seep through the gravel layers, which retain mechanical particles, providing purified fluids at the outlet.