海上潜山油田压力监测系统优化研究

井下压力计是获取地层压力的直接手段,每口井均下压力计能够全面取得地层压力参数,但增加了操作成本和油井管柱的复杂性。通过对JZ25-1N潜山油田压力分布、井位分布、构造特征等分析,综合考虑油田各井流动系数、产液、综合含水等参数对压力监测井位的影响,提出了海上潜山油田压力监测系统优化方法,并建立了数学模型。利用该方法优化了JZ25-1N潜山油田合理的压力计监测井位,定量分析压力监测井位以及压力监测井最小井数、比例等参数,所选取压力监测井位既代表了全油田的生产井和压力分布特征,又保持了合理的监测比例,实现了JZ25-1N潜山油田压力监测系统的优化部署。

Research on the Pressure Monitoring System of Buried Hill Oilfield Offshore

Downhole pressure gauge is a direct approach to obtain formation pressure, Each well with the downhole gauge can get parameters of reservoir pressure, but increase the operating costs and complexity of oil well tubing string. Through the analysis of JZ25-1N buried hill pressure distribution , location distribution,structural feature, etc, considering the parameters of flow coefficient, produced fluid, water cut on the influence of the pressure monitoring location, we have proposed the pressure monitoring system optimization research of buried ridge oilfield at sea, and established the mathematical model. The method was used to optimize the reasonable pressure gauge to monitor the location of JZ25-1N buried ridge oilfield, and make quantitativeanalysis of pressure monitoring well and the smallest proportion of monitoring. The selection of monitoring well generation can represent the whole oilfield production wells and pressure distribution characteristics, and maintain a reasonable proportion of monitoring, so it implements the optimized deployment of JZ25-1N buried ridge oilfield pressure monitoring system.