BP's recent drilling results in the Akhen gas field, offshore Egypt, provide an excellent case study into the challenges of drilling and developing the pre-Pliocene in the Nile Delta. The challenges are significant and include Pliocene overpressure cells, variable thickness and rugosity of Miocene aged anhydrite, deep and complex structural elements, and seismic quality challenges. However, the reservoirs in the pre-Pliocene are known to contain very condensate-rich gas with high reservoir pressures and significant exploration potential, making this basin and this play a significant asset in BP's global portfolio.

The Akhen Field is located within the Ras El Bar concession...

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