UNCONSOLIDATED THIN BED CLASTIC PETROPHYSICS - LESSONS LEARNT, GREATER DOLPHIN AREA, TRINIDAD

摘要

The Greater Dolphin Area consists of three main fields, Dolphin, Dolphin Deep and Starfish, off the East Coast of Trinidad. The reservoir intervals consist of a series of stacked Pleistocene sands, silts and shales derived from the proto-Orinoco, with thick marine claystones forming seals. The reservoir sands are generally unconsolidated with good porosity and permeability. Hydrocarbon composition is primarily dry gas with minor condensate.