东濮凹陷文留盐下煤成气聚集系数研究

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STUDY OF ACCUMULATION COEFFICIENT OF COAL-FORMED GAS BELOW THE SALT SEQUENCE IN WENLIU AREA OF DONGPU DEPRESSION

摘要: 东濮凹陷文留地区沙三段4亚段盐下气源单一,石炭—二叠纪系煤系气源边界条件清楚,该区勘探程度高,对天然气成藏条件、成藏历史、气藏特征的认识深刻,可以有依据地推算最终可探明储量;利用盆地模拟方法计算出刻度区的煤系生气量,进而推算出天然气聚集系数为7.3%～7.6%.
- 聚集系数 /
- 煤成气 /
- 文留地区 /
- 东濮凹陷
Abstract: The gas in Es³⁽⁴⁾below the salt sequence has single source in Wenliu area of Dongpu depression,and the boundary condition is clear for the source rocks in the CarboniferousPermian coalbearing sequence.Exploration degree is high in this area.Final proven reserves can be calculated accordingly by profound understand of natural gas reservoir formation condition,reservoir formation history and gas reservoir features.The quantity of gas generated from coal measure in the reference section can be calculated by the method of basin modeling,and natural gas accumulation coefficient is calculated as 7.3%-7.6%.
- accumulation coefficient /
- coal-formed gas /
- Wenliu area /
- Dongpu depression

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