Juniper Publishers Introduction Naturally fractured-vuggy carbonate reservoirs have various type so f units, and making full use of the well test data to study reservoir characteristics is the quit important to enhance oil production. The classification of the reservoir units and identification methods are analyzed. Combination of the results interpreted by multiple medium model and radial composite model, the well test double logarithmic curves are divided into five types corresponding to different reservoir unit’s characteristics. a. The oil well does not drill in any fractured-vuggy unit, but abundant fractured-vuggy units exist in the reservoir b. The oil well drill in the fractured-vuggyunits and many fractured-vuggy units exist in the reservoir. c. The oil well drill in multiple connected water-eroded caves. d. Carbonate reservoirs contain primarily matric. e. The oil well drill in some individual water-eroded caves, but the fractured-vuggy reservoir does not de...
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