Project Details

Reserves Assessment, Field Development Plan and Valuation - Onshore Acid/Sour Gas Field

We developed independent deterministic and probabilistic reserves assessments for this field in accordance with PRMS standards. This field is a giant carbonate structure with significant quantities of highly sour gas (33.5% H2S and 9.6% CO2).

We developed an integrated geological and reservoir simulation model for the field. The work included full assessment and interpretation of a 3D seismic data set, development of a static geological model and a dynamic reservoir model. We carried out modelling to determine optimum configuration through consideration of acid gas injection, desulphurisation and power generation alternatives. We also carried out conceptual field development planning to determine the associated surface production scheme. We used our NETCO$TER cost Evaluation Software to prepare detailed development and operating costs.

The special features considered included: potential disposal of separated sour gas into the host reservoir and through enhanced recovery schemes in associated independent reservoirs; design of equipment to handle highly toxic hydrogen sulphide concentrations; impact of high hydrogen sulphide levels on gas physical properties.

We prepared a reserves certification statements in accordance with PRMS standards.  .

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