摘要
落实气藏剩余储量及分布是气藏开发的关键。为此,利用压降法、产量累积法、罗杰斯蒂函数法、产量递减法、水驱特征曲线法和油压递减法等6种计算方法对中坝气田雷三段气藏动态储量及可采储量进行了研究。结果表明:对于进入开发末期的气藏,运用罗杰斯蒂函数法、产量递减分析法以及油压递减法进行动态储量计算较为准确。综合比较,中坝气田雷三段气藏可采储量为(83～85)×108m3,剩余可采储量为(6～7)×108m3左右;气藏剩余储量主要分布于受水侵影响较小的中46、中18及中40井井区,加强排水采气,减缓水侵对主力气井生产的影响,是提高整个气藏储量动用程度的关键因素。
To determine both remaining reserves and their distribution is very important for reservoir development.So far,therea re six methods to determine and calculate the dynamic and recoverable reserves of Leikoupo 3 reservoir,Zhongba gasfield,including pressure drop,production accumulation,logistic function,production decline,water-drive characteristic curve and oil pressured ecline.Results show that three ones among them like logisticf unction,production decline and oil pressure decline are more accurate to calculate dynamic reserves during the end of development;after these calculations,the recoverable and remaining recoverable reserves of Leikoupo 3 reservoir are(83～85)×108m3a nd(6～7)×108m3,respectively;and the remaining ones arem ainly from an area among Zhong 46,Zhong 18 and Zhong 40w ells with a little effect of water invasion.So,to enhance drainageg as recovery and to mitigate an effect of water invasion on well production are very critical to increase reserves producing degree fort he whole gas reservoir.
出处
《天然气技术与经济》
2012年第5期10-14,77,共5页
Natural Gas Technology and Economy
关键词
储量计算
雷三段气藏
可采储量
排水采气
reserves calculation,Leikoupo 3 gas reservoir,recoverable reserves,drainage gas recovery
