A search request including user information and query information sent by a user is received. Data for taxable investments, data for non-taxable investments and investor data are received and an optimization is performed which includes all of these data. Kick tolerance and tripping margins are eliminated by real-time determination of pore and fracture pressure. In order to form a homogenization region located within the web, in which mechanical stresses occurring during bending of the bending element are substantially equal, the mutual spacing of the side edges of the web decreases, as viewed from the first end of the bending element.