油藏启动压力的规律研究与应用

低渗油藏具有启动压力现象而使渗流不遵循达西定律，研究油藏启动压力规律，能更好地进行油藏开发设计和油藏开发动态分析，方法：利用渗流理论进行研究和推导，同时结合室内试验资料进行验证。结论：该规律为进行油藏开发层系的划分，井网部置及已开发油藏层间动用状况等研究提供了一种新的理论方法和工具。

The Study and Application of Reservoir Start-up Pressure

Purpose Reservoirs with the low permeability have the Start-up pressure, so that seepage flows do not obey the Darcy's law. Study of the law of reservoir start-up pressure can be useful for the planning of reservoir development and the performance analysis of reservoir development. Method Based on the theory of seepage flow to study and deduce the law of reservoir start-up pressure, and then verify it with the laboratory data. Result The relations between grade of reservoir start-up pressure and the liquid mobility through it is under inverse proportional and hyperbolic function, which multiplying product is a contant. This constant is only relevant to the pay zones and the liquid quality through it. The formula of them has been built up and the application of the formula has been introduced in this paper. Conclusion This law offers the new theory and method for the division of developing formation, disposition of well pattern and the research of the interlayer producing status of reservoirs.