开发井油层孔隙压力动态预测新方法

油田开发时间的延长和注水增产措施的使用。使得地层孔隙压力变得异常复杂，给调整井钻井带来了很大困难。从油藏模拟的基本原理出发，建立了一套简便、快捷地预测油层压力分布变化的新方法。并根据模拟方程，利用Visual Basic语言编制了计算机程序。该方法借鉴油藏数值模拟的原理，又比油藏数值模拟简便可行，可在较短时间内对开发井油层孔隙压力进行预测。在大港油田20多个区块进行了应用．结果表明其具有很高的精度。能满足钻井工程设计和施工的需要。

New method for predicating pore pressure in development wells

With the standing of production life and the using of water injecting stimulation, formation pore pressure became very complex which leads to severe drilling difficulties in adjustment well. A new method for predicating reservoir pressure distribution has been established based on the theory of reservoir simulation, and the computer software using Visual Basic has been also developed according to reservoir simulation equations. Although based on the reservoir simulation theory, the new method is more easily to use and the predication rate is more rapid. The method has been used in about 20 blocks in Dagang oilfield, and accurate predication results have been obtained.