压力与产量反褶积在海上探井资料解释中的应用

简述了反褶积基本原理以及Schroeter反褶积方法。利用专业试井分析软件SaphireV4.12反褶积模块处理两口探井实测试井资料,由井底压力和地面产量反褶积出以一恒定产量生产的等效压力。与常规双对数诊断图相比,等效压力双对数诊断图能够反映全程压力历史背后测试井和油藏信息,可帮助诊断、选取合理的解释模型,获取储层参数和测试井边界信息。通过实例说明,压力与产量反褶积试井分析方法对于封闭油藏动态特征早期探测极其有用,开拓了压力数据分析的新机遇。

The Application of Pressure and Producing Rate Deconvolution on Offshore Exploratory Well Test Data Interpretation

The basic principles of the deconvolution and Schroeter deconvolution methods are described in this paper.The real test data of two exploration wells are handled by the deconvolution module in professional well test analysis software Saphire V4.12.The equivalent pressure of a constant-volume production is gotby using the deconvolution of bottom hole pressure and ground production rate.Compared with the conventional double logarithmic diagnostic charts,the equivalent pressure-log diagnostic charts can reflect the test wells behind the full pressure history and reservoir information and can help diagnose and select a reasonable explanation model,get reservoir parameters and the information of boundaries.Pressure and producing rate deconvolution method is extremely useful for early predicting dynamic characteristics of closed reservoirs,and provides new opportunities for pressure data analysis.