生产数据分析技术在东海气田的应用

海上油气田测试作业费用较高，且时间窗口有限，生产数据分析技术（RTA）可弥补常规试井作业不足。该技术以渗流理论为基础，依靠生产动态数据，通过典型曲线图版拟合求取地层参数。在东海气田实例应用中，该方法能够准确反映中孔渗气藏储层特征，对于低孔渗储层需结合不稳定试井方法综合评价。生产数据分析技术适用性强，不需要关井测试，可降低海上油气田生产管理成本。

Application of Production Data Analysis Technology in the East China Sea Gas Field

Rate transient analysis (RTA) could overcome two main disadvantages of well testing which are high price and time limitation. It is based on the theory of fluid flow, which is relying on the production dynamic data. It is a method to obtain formation parameters through typical curve plate fitting. In the application of the East China Sea gas field, this method can accurately reflect the characteristics of the medium porosity and permeability gas reservoirs. For low porosity and permeability reservoir, it needs to be comprehensively evaluated in combination with unstable well testing. Rate transient analysis method has strong applicability and does not require shut-in testing. Consequently, the cost of production management can be reduced.