Rational Well Patterns for Combined Production of Low Permeability Reservoirs by Using Horizontal-vertical Wells

For rational and effective production of low permeability reservoirs, the method of numerical simulation combined with reservoir engineering was used to study the problems concerning the well pattern combined production of low permeability reservoirs with horizontal-vertical wells based on a geologic model of low permeability reservoirs, it included the mode of horizontal-vertical well combination and geometric size of well patterns.It is of great significance of enriching and promoting the theory of overall development of low permeability reservoirs using horizontal wells.