Research Of Multiphase Flow Productivity Evaluation Method And Its Application

The determination of a reservior’s deliverability is necessary for the development of both exploration wells and developmemt wells. After decades of development, Chinese researchers and researchers in other countries all have some research on the productivity testing analysis methods of single-phase flow and two-phase flow. In particular, foreign researchers have more systematic analysis methods and theories. Researchers have had relatively deveoped analysis methods and softwares on the analysis of single-phase flow and two-phase flow. However, there is no analysis software and corresponding research in which the three-phase flow productivity analysis method is applied. These problems seriously reduces the effective development of the three-phase flow reservoirs, the evaluation of an oil well’s deliverability, and the predcition of a well’s deliverability, which hinders the the formulation of reasonable work systems.Having the goal of evalating productivity of oil-gas-water three-phase flow, reserachers in the current study proposed a new productivity analysis method and productivity testing method of the oil-gas-water three-phase flow in the current study. By observing the results of applying the above methods in the Ying Dong oilfield, researchers proposed the productivity testing methods for the Ying Dong oilfield.The current study mainly focued on the productivity testing method and the productivity analysis method of oil-gas-water three-phase flow. By comparing existed productivity testing methods and observing the application of the above methods in the Ying Dong oilfield, researchers proposed reasonable deliverability testing methods for the Ying Dong oilfield. By analyzing existed oil-gas-water three-phase flow productivity equation, reserachers set up a new deliverability testing analysis method for oil-gas-water three-phase flow. The results of applying the above methods in the Ying Dong oilfield supported the effectiveness of the new deliverability testing analysis method. At last, researchers in the current study complied a three-phase flow deliverability analysis software.