本文選題：溶劑輔助蒸汽驅(qū)　切入點：注蒸汽　出處：《中國石油大學(xué)學(xué)報(自然科學(xué)版)》2017年01期

【摘要】：為了描述注溶劑條件下蒸汽前緣的形狀,首先提出蒸汽前緣氣相內(nèi)組分平衡狀態(tài)計算方法,獲得邊界溫度特征;其次列出前緣液相組分組成的計算過程,建立考慮三相平衡狀態(tài)的蒸汽前緣形狀預(yù)測模型;最后采用迭代法獲得界面關(guān)鍵參數(shù),并求解整個模型。結(jié)果表明:溶劑輔助蒸汽前緣形狀以楔形為主,并且在較低注汽速度情況下,重質(zhì)溶劑改善垂向波及系數(shù)效果明顯優(yōu)于輕質(zhì)溶劑,對于較高注汽速度,輕質(zhì)溶劑改善重力超覆現(xiàn)象的潛力明顯大于重質(zhì)溶劑。
[Abstract]:In order to describe the shape of the front edge of steam under solvent injection, a method for calculating the equilibrium state of the components in the vapor phase of the front edge of the steam is proposed, and the boundary temperature characteristics are obtained, and the calculation process of the composition of the composition of the liquid phase in the front edge is listed. The prediction model of steam leading edge shape considering three-phase equilibrium state is established. Finally, the key parameters of the interface are obtained by iterative method, and the whole model is solved. The results show that the solvent assisted steam leading edge shape is mainly wedge-shaped. In the case of low steam injection rate, the effect of heavy solvent on improving vertical sweep coefficient is obviously better than that of light solvent. For higher steam injection rate, the potential of light solvent to improve gravity overlying phenomenon is obviously greater than that of heavy solvent.
【作者單位】： 中國石油大學(xué)石油工程學(xué)院;中國石油大學(xué)石油天然氣教育部重點實驗室;中國石油勘探開發(fā)研究院;
【基金】：國家重大專項(2016ZX05012-005-004,2016ZX05025-004-002)
【分類號】：TE345;TE357.44
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本文編號：1695711