Offshore oil and gas well test pipe column and ground flow decision system

The invention relates to the oil field production technology field and especially relates to an offshore oil and gas well test pipe column and ground flow decision system. The system comprises a data layer, an application service layer and a knowledge base layer. The data layer is quoted from external data, various kinds of databases are established and a support is provided for output of the application service layer. The application service layer comprises a pre-decision of a test pipe column and a ground flow, flow simulation of the test pipe column and the ground flow, flow guarantee of the test pipe column and the ground flow and real-time analysis. The knowledge base layer carries out automatic correction on a correlation parameter in a simulation model and guides the flow simulation of the test pipe column and the ground flow and a flow guarantee analysis. The decision system can realize an individual decision of the test pipe column and the ground flow and can realize highly decision fusion and an integration decision of the test pipe column and the ground flow so that a test pipe column and ground flow design is scientific and reasonable and safety guarantee is provided for test work.