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最优化拟合法计算水驱气藏动储量及水体大小 |
The optimal fitting method for dynamic reserves and water body size of water drive sandstone gas reservoir |
投稿时间:2018-03-20 修订日期:2018-03-20 |
DOI: |
中文关键词: 水驱气藏 物质平衡 解析水体 动储量 水体倍数 |
英文关键词: water drive gas reservoir material balance analytical waters dynamic reserves water body size |
基金项目:]:国家科技重大专项“东海厚层非均质性大型气田有效开发关键技术”(2016ZX05027004)。[第一 |
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中文摘要: |
对于边底水活跃的水驱气藏,由于受水侵影响,生产中后期的压力数据偏离直线段,无法采用定容封闭气藏的压降法来计算动储量,因此,需要寻找考虑水侵影响的动储量计算新方法。以物质平衡方程为基础,提出将物质平衡原理与解析水域模型相结合,采用最优化拟合法,快速实现水驱气藏动储量及水体大小的计算。东海某水驱气藏的实例应用表明,采用最优化拟合法计算得到的动储量为31.5亿方,水体倍数为46倍,结果可靠,计算方法简易,具有较强的矿场使用价值。 |
英文摘要: |
As edge-bottom water invasion,the pressure data of water drive gas reservoir deviates from the straight line in the production of middle, the drop method to calculate constant-volume gas reservoir cannot used to calculate the dynamic reserves for water drive sandstone gas reservoir, therefore, finding a considering invasion method to calculate dynamic reserves of water invasion is needed. Based on the material balance equation, combined with the model of analytical waters, the dynamic reserves and water body size of water drive can be quickly calculated by optimal fitting method.The application of water drive gas reservoir in the east China sea vertifies the result of dynamic reserves and water body size by optimal fitting method is accuate and practical. the dynamic reserves is 3.15 billion square and the water body size is 46 times,which can be used to guide the daily production. |
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