Abstract

M8 Complex is one of the hugest and oldest offshore platforms in Gulf of Suez, Egypt. Many Intensive studies are conducted to refurbish it after its accidental fire occurred in March 2004 destroying most of its structure parts in a try to reinstate its production (±5000 BOPD). M8 receives oil feed from 5 satellites which are producing from Kareem reservoir (Middle Miocene) through a total of 11 wells penetrating M8 compartment polygon.

The main challenge is that 3 of the 11 wells are drilled from another outside platforms which are not related to M8 as a complex but their effect still inside M8 Polygon; these 3 wells continued production even after M8 fire. Also some WIW's accidently still injecting inside the polygon during its shut-In period till now. That led to a more complications in calculating remaining volumes of hydrocarbon left in the reservoir because all parameters inside M8 compartment polygon have been dramatically changed since 2004 till now.

This paper presents a study to decide whether to refurbish and reclaim M8 or not which depends mainly on the current remaining hydrocarbon volume. It shows also a simple analytical approach used for accurately calculating the remaining resources leading to take appropriate decision. Paper also covers many recovery scenarios, challenges and uncertainties specially in locating oil pockets and estimating initial rate after reinstating.

Through this paper you will learn how to use a simple analytical approach to solve such a complicated problem. Paper will explain the Study Methodology, Volumetric Calculations, STOOIP Validation, RF Estimation & QC, WIW's effect during the Shut-In period, de-risking all uncertain parameters and Finally finding optimum method to recover the remaining volume & How to choose the optimum location(s) of the proposed producer(s) to be drilled – all of this by only using a conventional approach.

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