Method for extracting residue oil by injecting profile control agent to norizontal well for blocking water injection path of oil reservoir

The method of the present invention belongs to the oil production, and particularly to a method using a horizontal injection well for reservoir injection profile channel blocking agent remaining oil exploitation. In the injection, recovery wells bank plane of the geological structure of the reservoir, using the vertical profile horizontal wells agent group to the main flow direction of injection, water injection blocking passage. After the original water channel is blocked horizontal well profile, the flow is forced to change direction flushing residual oil, and oil well recovery downstream. The present invention horizontal injection well profile control agent reservoir water channel blocking residual oil extraction method rational design, low investment and high efficiency.