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An operator in the North Sea wanted to determine the petrophysical characterization of the field to map the level of H2S concentrations and to predict the reservoir’s behavior during production. One of the concerns was taking the samples with low enough contamination for accurate pressure/volume/temperature (PVT) testing.
Baker Hughes has been using the Reservoir Characterization Instrument™ (RCI™) service exclusively in a well development sampling campaign for this operator since its titanium construction minimizes loss of corrosive gases and compounds when sampling.
The RCI nickel alloy sample chambers reduce the adsorption of corrosive gases and compounds within the tool ensuring that PVT measurements within 10% are possible. This method avoids performing other expensive well tests.
The In-situ Fluids eXplorer™ (IFX™) system was used to determine the contamination levels when sampling by determining the density, viscosity, and sound speed stability measurements.
The sound speed measurement measures the response of the acoustic travel time across the fluid so it is very sensitive to gas coming out of solution and contamination changes.
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