Abstract: An analytical study of the character of development of pools with low permeability and high saturation in the Honggang oil field lends light to the fact that pattern flooding for pressure maintenance from the initial stage of development is an appropriate way of producing sucb type of pools. To ensure prolonged stable high production, it is necessary to use a high injection-production ratio so as to ensure that enough water is injected into the main pay zones and a reasonable difference of flowing pressure and producing pressure is maintained.