Oil-gas well productivity evaluation experimental device considering different well-completion modes

The invention relates to an oil-gas well productivity evaluation experimental device considering different well-completion modes. The oil-gas well productivity evaluation experimental device comprisesthe following parts: an oil-gas production simulation mechanism, a shaft simulation mechanism and a computer information and control mechanism; the oil-gas production simulation mechanism comprises ahigh-pressure kettle, a closed pressure-maintaining cabin is formed in the high-pressure kettle, and an oil-gas inlet, a first high-pressure kettle outlet and a second high-pressure kettle outlet areformed in the high-pressure kettle; the shaft simulation mechanism is arranged in the pressure-maintaining cabin and used for simulating movement of a down-hole fluid; and the computer information and control mechanism is used for monitoring the pressure in the pressure-maintaining cabin and the oil-gas production yield. Different shaft forming methods should be adopted for the different well-completion modes, and oil-gas