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涩北气田是一典型的疏松砂岩气藏,有凝析水、夹层水、边水等多种水源类型。首先根据气井出水特征对出水水源进行了分类,并通过详细研究夹层水形成的地质特点,分析得到了夹层水的数值模拟原则。然后利用该原则,综合油藏描述、测井、试井等资料,找到了适合涩北气田气井出水分析和模拟的一套原则和参数,有效地解决了涩北气田由于出水类型多样造成气井模拟的随意性,减小了夹层水、边水模拟的误差,提高了气井出水预测准确程度,为今后区块生产预测提供了依据。
Sebei gas field is a typical unconsolidated sandstone gas reservoir with condensate water, interlayer water, edge water and other types of water sources. Firstly, the water source of water outflow was classified according to the characteristics of gas well effluent, and the geological characteristics of water formation were analyzed in detail. The principle of numerical simulation of water was analyzed. Based on this principle, a set of principles and parameters suitable for gas well effluent analysis and simulation in the Sebei gas field are found based on the reservoir description, well logging and well testing data. The gas well simulation in the Sebei gas field is effectively solved The arbitrariness reduces the error of the simulation of water and edge water in the interlayer water and raises the prediction accuracy of gas well effluent and provides the basis for the prediction of block production in the future.