靖边油田青阳岔区块长6油藏油井生产能力评价及预测

Evaluation and prediction of oil well productivity in Chang6 reservoir,Qingyangcha Block,Jingbian Oilfield

针对靖边油田青阳岔区长6储层投产含水率差别大的现状,充分利用区块测井原始资料丰富的优势,首先通过阿尔齐公式对储层的含水饱和度进行解释,并利用水驱油实验得到束缚水饱和度与孔隙度和泥质含量的拟合关系得到每口井的束缚水饱和度,以此为基础得到储层的可动水饱和度、含油饱和度So、残余油饱和度、可动油饱和度,以此为基础对储层的性质进行可靠的定性解释。其次通过相对渗透率推导出的含水率的公式对储层进行定量解释。对储层进行生产能力的评价与预测,为有效提高油井投产的成功率,减少投资,提高经济效益。

In view of the large difference in put in production water content of Chang 6 reservoir in Qingyangchha area of Jingbian Oilfield,this paper makes full use of the advantages of abundant raw logging data in the block,firstly explains the water saturation of the reservoir through the Arzi formula,and uses the water drive experiment to obtain the fitting relationship between the bound water saturation and porosity and mud content to obtain the bound water saturation of each well.On this basis,the mobile water saturation,oil saturation So,residual oil saturation and mobile oil saturation of the reservoir can be obtained,and the properties of the reservoir can be reliably explained qualitatively.Secondly,the formula of water cut derived from relative permeability is used to explain the reservoir quantitatively.To evaluate and forecast the production capacity of reservoir,in order to effectively improve the success rate of oil well operation,reduce investment and increase economic benefit.