靖边气田新增探明储量区块马五1+2气藏特征

靖边气田新增探明储量区块实测地层压力资料与气层中部海拔进行拟合回归相关性较好,其压力梯度与气田本部压力梯度值很接近.新增储量区块内无论是天然气组份,还是相对密度与靖边气田本部都有明显的一致性,表现了同一气藏的特征.通过气藏流体性质和试气结果的分析,按照气井不同产量分为Ⅰ类、Ⅱ类、Ⅲ类井分别进行评价.对比本次新增探明储量区块与已探明面积内投产井配产指标发现,二者不同类型气井井数比例一致,单井平均无阻流量及平均配产产量也接近.

Characteristics of Ma5 (1+2) Gas Reservoir in Newly Proven Reserves Block ,Jingbian Gas Field

Measured formation pressure data of newly additional proven reserves block in Jingbian gas field have well correlation with the altitude of central gas reservoirs,its pressure gradient and the gas reservoir pressure gradient value is very close.Components and relative density of natural gas from the block have obviously consistency with those from Jingbian gas field,their performance characteristics are same.In this paper,through analysis of gas reservoir fluid properties and gas production test results,according to the gas well yield,gas wells were divided into class I,II,III and were evaluated separately.Proration production indicators of the newly additional proven reserves blocks and proven area wells were compared.The results show that two different types of gas wells number proportion is consistent,single well average open-flow capacity and average proration production are close,too.