Most sand production prediction models to date have the capability to indicate whether initial sand production may take place somewehere during the lifetime of a reservoir. However, these models are unable to predict whether the sand production will be 'problematic' (e.g. in terms of erosion, plugging, well sand-up, separator fill, etc.), in particular for systems that have some tolerance towards sand production. In order to predict whether sand production will be 'problematic', one needs to be able to estimate sand production volumes and rates as a function of, amongst others, bottom-hole load conditions, drawdown, and time. This paper presents a model for the prediction of sand production volumes and rates for any type of clastic oil or gas reservoir. This work builds on successful previous efforts to predict sand production rate in the Canadian heavy oil sands. The current model is a validation of the previous model and its further generalisation to sandstones of any strength (not just unconsolidated) with any reservoir fluid (not just heavy oil), and involves features such as failure of intact sand, post-failure cavity stabilisation, and non-associated viscoplasticity. The model has been calibrated to laboratory experiments.
Prediction of Sand Production Rate in Oil and Gas Reservoirs
2003
9 Seiten, 10 Quellen
Conference paper
English
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