关富佳, 李相方, 安小平. 基于电缆地层测试的储层径向有效渗透率计算新方法[J]. 煤田地质与勘探, 2010, 38(6): 75-78. DOI: 10.3969/j.issn.1001-1986.2010.06.016
引用本文: 关富佳, 李相方, 安小平. 基于电缆地层测试的储层径向有效渗透率计算新方法[J]. 煤田地质与勘探, 2010, 38(6): 75-78. DOI: 10.3969/j.issn.1001-1986.2010.06.016
GUAN Fujia, LI Xiangfang, AN Xiaoping. A new method for estimation formation radial effective permeability based on wireline formation testing[J]. COAL GEOLOGY & EXPLORATION, 2010, 38(6): 75-78. DOI: 10.3969/j.issn.1001-1986.2010.06.016
Citation: GUAN Fujia, LI Xiangfang, AN Xiaoping. A new method for estimation formation radial effective permeability based on wireline formation testing[J]. COAL GEOLOGY & EXPLORATION, 2010, 38(6): 75-78. DOI: 10.3969/j.issn.1001-1986.2010.06.016

基于电缆地层测试的储层径向有效渗透率计算新方法

A new method for estimation formation radial effective permeability based on wireline formation testing

  • 摘要: 试井方法是求取地层径向有效渗透率最直接有效的方法,但其测试费用较高。提出了基于电缆地层测试结合核磁共振测井获得地层径向有效渗透率的新方法。应用电缆地层测试仪器求取地层纵向有限测试点的有效渗透率水平分量,进而应用各测试点有效渗透率水平分量对核磁共振渗透率进行刻度,计算刻度后的核磁测井渗透率平均值,可获得既能反映测井表现的地层纵向非均质,又能表现电缆地层测试渗透率的有效性。该方法应用于现场测试,与DST (钻柱地层测试)测试结果对比具有较高的计算精度,同时可以节省大量的测试费用。

     

    Abstract: Testing interpreting is the most directly method to get formation radial effective permeability, but its testing cost is relatively expensive.The paper proposed a new method to get the permeability by combining wireline formation testing (WFT) to nuclear magnetic resonance (NMR) logging, based on the new method, permeability from NMR logging is calibrated by several point horizontal permeability from WFT, and then, the average permeability can be obtained by calculating average scaled NMR logging permeability, The average permeability shows both formation vertical heterogeneity and WFT effectiveness.The method had been applied in field testing, and the permeability from the method has higher precision than DST test, as well as, its cost is very low.

     

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