岩性油气藏 ›› 2021, Vol. 33 ›› Issue (4): 128136.doi: 10.12108/yxyqc.20210414
赵军1, 韩东1, 何胜林2, 汤翟2, 张涛1
ZHAO Jun1, HAN Dong1, HE Shenglin2, TANG Di2, ZHANG Tao1
摘要: 珠江口盆地文昌A凹陷低对比度储层电性与含油气性关系复杂,气、水层测井响应特征接近,仅用常规测井识别流体性质较困难。为了准确识别该类气藏流体性质,以相渗资料、毛细管压力等实验数据为基础,通过不同含水饱和度下的相渗模型及分流率方程,建立了水气比的计算模型,结合生产动态及测试资料,建立了水气比流体的识别标准,并依据该标准确定了文昌A凹陷储层流体性质。结果表明:①计算水气比与实际生产数据符合度高,流体解释结果准确率达到92%,有效地提高了低对比度储层流体识别的准确率;②生产测试资料对该方法流体性质识别的准确性起决定作用。该方法有利于同类储层的开发。
中图分类号:
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