【摘 要】
：
为了研究含油气盆地上生下储倒灌式油气运聚成藏规律,在上生下储倒灌式油气运聚成藏机制及其空间分布研究的基础上,通过确定源岩排烃分布区、倒灌式油气运移源岩超压分布区和输导断裂分布区,确定上生下储倒灌式油气运聚成藏平面分布区;通过确定上生下储倒灌式油气运聚最大深度分布和输导断裂延伸长度分布,确定上生下储倒灌式油气运聚成藏纵向分布区,将二者组合,建立了一套上生下储倒灌式油气运聚成藏空间的预测方法,并将其应用于松辽盆地北部三肇凹陷青一段源岩向下伏扶杨油层倒灌式油气运聚成藏空间的预测中.结果表明:三肇凹陷青一段源岩向
【机 构】
：
大庆油田有限责任公司第四采油厂,黑龙江大庆 163514
论文部分内容阅读
为了研究含油气盆地上生下储倒灌式油气运聚成藏规律,在上生下储倒灌式油气运聚成藏机制及其空间分布研究的基础上,通过确定源岩排烃分布区、倒灌式油气运移源岩超压分布区和输导断裂分布区,确定上生下储倒灌式油气运聚成藏平面分布区;通过确定上生下储倒灌式油气运聚最大深度分布和输导断裂延伸长度分布,确定上生下储倒灌式油气运聚成藏纵向分布区,将二者组合,建立了一套上生下储倒灌式油气运聚成藏空间的预测方法,并将其应用于松辽盆地北部三肇凹陷青一段源岩向下伏扶杨油层倒灌式油气运聚成藏空间的预测中.结果表明:三肇凹陷青一段源岩向下伏扶杨油层倒灌式油气运聚成藏空间分布广泛,平面上除了东北边部和东南边部局部地区外,整个凹陷大部分地区皆为青一段源岩向下伏扶杨油层倒灌式油气运聚成藏平面分布区;纵向上倒灌式油气运聚最大深度可达500 m以上,主要分布在其北部和中部地区,由此向其四周逐渐减小,在凹陷东南边部和西南局部地区减小至100 m以下.青一段源岩向下伏扶杨油层倒灌式油气运聚成藏空间有利于上覆青一段源岩生成油气在超压作用下通过输导断裂向下伏扶杨油层运移和聚集,与三肇凹陷扶杨油层已发现油气分布相吻合,表明该方法用于预测上生下储倒灌式油气运聚成藏空间是可行的.
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