Abstract:

The Carboniferous Kalashayi Formation of Block A in the Tahe oilfield is one of the most important oil-bearing formations in the area.A thorough understanding of its spatial distribution,thickness and physical pro-perties is crucial to exploration and production.To tackle the problem,the researchers study the construction of target characteristic curves based on a fine analysis of petrophysical features and obtain a high-resolution inversion data volume for prediction of favorable sand bodies by adopting frequency-divided inversion method.As a result,an effective technical process is established for the prediction of the Carboniferous reservoirs in the area and its application has been proven successful.

Key words: frequency-divided inversion, reservoir prediction, Kalashayi Formation, Carboniferous, Tahe oilfield