| 摘要 |
<p>Disclosed are an analysis processing method and system for afterflow data in well test data. The method includes: pre-measuring a relationship between an isochronous rate and various influencing factors under various lithologic conditions, acquiring relational data between the isochronous rate and the lithology of a reservoir bed, the structure of the reservoir bed and fluid properties, and establishing an isochronous rate mathematical model; in the well test process of a reservoir bed, collecting bottom hole pressures at different collection moments respectively, and acquiring an actually-measured isochronous rate curve between the isochronous rate VP and an isochronous time interval t; selecting a well test interpretation model parameter, according to the isochronous rate mathematical model and the selected well test interpretation model parameter, calculating model isochronous rates VP' at different moments, and acquiring a model isochronous rate curve between the VP' and a model isochronous time interval t'; and fitting the model isochronous rate curve with the actually-measured isochronous rate curve to acquire characteristic parameters of the reservoir bed. The embodiments of the present invention can realize analysis processing of afterflow data in well test data.</p> |
