| 摘要: |
| 参考中国石油天然气行业标准SY/T 6339-1998，采用衰竭式开采的非稳态法测定了 Orinoco泡沫油的油气相 对渗透率,并建立了试验条件下油、气体积的计算方法。对泡沫油的油气相渗特殊性进行了描述和解释，并利用一 维模型进行了检验和验证。结果表明:在泡沫油的油气相对渗透率曲线上,含气饱和度低,气相渗透率很低;压力高 于拟泡点压力时，油气两相曲线没有交点，以油相渗流为主，这也是泡沫油产油童高的主要原因。模拟计算结果验 证了泡沫油油气相对渗透率曲线的合理性。 |
| 关键词: 泡沫油 油气相对渗透率 压力衰竭 拟泡点压力 测试方法 |
| DOI： |
| 分类号: |
| 基金项目:中国石油集团公司重点项目(ZGB0502) |
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| Testing method of oil and gas relative permeability of Orinoco foamy oil |
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YANG Li-min1,QIN Ji-shun2,CHEN Xing-long2
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(1. Faculty of Petroleum Engineering in China University of Petroleum, Beijing 102249: China;2. Research Institute of Petroleum & Development, PetroChina, Beijing 100083, China)
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| Abstract: |
| According to China's petroleum and gas industry standard SY/T 6339-1998,the oil and gas relative permeability of Orinoco foamy oil was tested by unsteady method in pressure depletion experiment. Under the experimental condition, calculation method of gas and oil volume was determined. The characteristics of relative permeability of the foamy oil were described and discussed, and the result was tested and verified by 1-D model. The calculation results show that on the curve of relative permeability, both gas saturation and gas relative permeability are low. When the pressure is higher than the pseudobubble point pressure，there is no intersection between oil and gas relative permeability curves and the oil flowing is the main flowing way，which is the main reason of high oil production. Simulated calculation confirms the reasonability of the result of oil and gas relative permeability curve. |
| Key words: foamy oil oil and gas relative permeability pressure depletion pseudo-bubble point pressure testing method |
