Multriwell is the new and effective solution for landfill gas extraction. This innovative technology enables landfill operators to extract considerably more gas compared to when traditional gas wells are used. The patented system consists of three components: short distance flexible vertical gas wells that are installed in very small grids, horizontal gas collection wells and an optional Trisoplast® or HDPE capping construction. By perforating waste within very small grids also leachate layers will be perforated and spread more evenly through the waste and causes an enhanced bio-reaction. This results in faster achievement of landfill inertia and settlement what generates a higher biogas production.