Utilising analytical model for sanding prediction of gas reservoir in Miocene of Hai Thach field, Nam Con Son basin
Abstract
Sand production in production wells not only heavily influences the quality of reservoirs and decreases the oil return index, but also rapidly erodes the down-hole equipment and may bring risk to choke and safety valves. Moreover, because the production wellhead platforms are usually located far away from the shore, it takes time and cost to replace the equipment that is eroded by sand, thus affecting the production profit.
Therefore, forecasting sand production in reservoirs helps to improve productivity, minimise risks in operation, guarantee equipment performance and efficiency as well as choose the right equipment for production optimisation, investment cost minimisation and increase of the capital claw-back capacity. Thanks to this, it is possible to develop advanced well completion solutions to optimise the investment cost. The analytical model has been applied in combination with geo-mechanical parameters from drilled wells for sand control in the production wells in Hai Thach - Moc Tinh field.
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