Endogenous and exogenous functional microorganism composite huff and puff method

The invention belongs to the technical field of tertiary recovery, and particularly relates to an endogenous and exogenous functional microorganism composite huff and puff method. The method comprisesthe following steps that a testing oil well is screened; an endogenous functional microorganism activator system is screened; an exogenous functional microorganism is screened; an exogenous functional microorganism sustained-release system is prepared; an on-site injection process is determined; and an on-site experiment is carried out, and the effect of the on-site experiment is evaluated. The implementation process is simple, the method is highly targeted, and the reliability is high; and meanwhile, the investment cost is low, the effect lasting time is long and exceeds 24 months, the effect of the on-site experiment is good, and the average daily oil increment of a single well exceeds 5 t. Therefore, the method can be widely used in a microbial single well huff and puff processing technology. 本发明属于三次采油技术领域，具体涉