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[其他软件] Hi, everyone. How can we take into account the production of condensed water ...

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  • TA的每日心情
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    2015-7-30 10:26
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    [LV.4]偶尔看看III

    发表于 2013-12-10 10:50:37 | 显示全部楼层 |阅读模式

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    Gas condensate reservoir is developing by depletion. Correspondingly, wells is extracted sum of water: condensation water, formation water and residual water. How can we take into account the production of condensed water with gas condensate using Eclipse 100? Is it possible? Or maybe we can calculated only formation water + residual water?
  • TA的每日心情
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    2015-7-30 10:26
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    [LV.4]偶尔看看III

     楼主| 发表于 2013-12-10 10:50:55 | 显示全部楼层
    Blackoil simulator (like E100) is not able to calculate the amount of water co-produced in the gas because it handles the gas as the single phase, without any components (like water) inside. However, as advised above, you can easily calculate these numbers in a spreadsheet. You'll need the water content in gas at RC, which is something people working with gas always have by hand.
    But solving this problem you should be also thinking about your production rates and P/T conditions. If production rates or/and your bottomhole pressure/temperature is low, or you have very complex tubing configuration which creates a lot of flow resistance with significant pressure losses (incl. local resistance due to diameter changes or curvature), this may lead to water staying/accumulating at your bottomhole. In this circumstances the relation between gas and water production is broken. At the limit this results in stopping the gas production (when perforations become covered with water).
    But: 1) this can't be anyway accounted in any simulator; 2) this is true even for breakthrough water (not condensed, but produced from aqueous part of the reservoir). I.e. in this situation you won't be able to predict the water production accurately (simulators always consider the fluids produced to the surface, even if you use VFP tables). If you have the information for history matching your model and also well surveys showing if water is accumulated at the bottom, they'll help you a lot.
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