生产水气比对气井产能影响规律研究OA北大核心CSCDCSTPCD
气藏开采过程中,地层水的侵入以及凝析水在井底的聚集,会导致近井地带含水饱和度的增加,降低气相渗透率,严重影响气井产量和产能.从气井生产水气比的变化角度出发,将气井拟稳定流动状态产能方程与气水相渗曲线结合,利用等效表皮系数对不同生产水气比时的产能方程进行修正,得出了生产水气比对气井产能的影响规律,并通过实例计算验证其准确性与可靠性.
In the process of gas reservoir exploitation, formation water encroachment and condensate water congregation at bottom hole will lead to increasing of water cut and decreasing of gas permeability near well bore, thus adversely affecting gas well productivity. From the perspective of changing WGR in gas well, pseudo steady - state flow deliverability equation is combined with gas -water relative permeability curve, and the deliverability equation under differ…查看全部>>
刘鹏超;唐海;吕渐江;汪全林;李禹
中海油湛江分公司,广东湛江524000西南石油大学,四川成都610500西南石油大学,四川成都610500中海油天津分公司,天津塘沽304500中石化江苏石油勘探局,江苏扬州225200
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气井生产水气比产能方程相渗曲线等效表皮系数
gas well producing WGR deliverability equation relative permeability curve equivalent skin factor
《特种油气藏》 2011 (5)
100-102,3
国家科技重大专项“大型油气田及煤层气开发”项目13课题五“低渗透油藏中高含水期综合调整技术”(2008ZX05013-005)
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