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基于常规测井数据计算储层岩石力学参数——以鄂尔多斯盆地上古生界为例

归榕 万永平

归榕, 万永平, 2012. 基于常规测井数据计算储层岩石力学参数——以鄂尔多斯盆地上古生界为例. 地质力学学报, 18 (4): 418-424.
引用本文: 归榕, 万永平, 2012. 基于常规测井数据计算储层岩石力学参数——以鄂尔多斯盆地上古生界为例. 地质力学学报, 18 (4): 418-424.
GUI Rong, WAN Yong-ping, 2012. ROCK MECHANICS PARAMETER CALCULATION BASED ON CONVENTIONAL LOGGING DATA:A CASE STUDY OF UPPER PALEOZOIC IN ORDOS BASIN. Journal of Geomechanics, 18 (4): 418-424.
Citation: GUI Rong, WAN Yong-ping, 2012. ROCK MECHANICS PARAMETER CALCULATION BASED ON CONVENTIONAL LOGGING DATA:A CASE STUDY OF UPPER PALEOZOIC IN ORDOS BASIN. Journal of Geomechanics, 18 (4): 418-424.

基于常规测井数据计算储层岩石力学参数——以鄂尔多斯盆地上古生界为例

基金项目: 陕西省科技统筹创新工程项目"陆相页岩气资源地质研究与勘探开发关键技术攻关"
详细信息
    作者简介:

    归榕(1985-), 女, 陕西西安人, 硕士研究生, 主要从事油气储层研究。E-mail:wanhunter@163.com

  • 中图分类号: TU452

ROCK MECHANICS PARAMETER CALCULATION BASED ON CONVENTIONAL LOGGING DATA:A CASE STUDY OF UPPER PALEOZOIC IN ORDOS BASIN

  • 摘要: 泊松比及杨氏模量等岩石力学参数是盆地构造应力场模拟、油气田钻完井及储层压裂改造设计的基础参数。在岩石力学实验研究及纵、横声波时差关系研究的基础上,针对鄂尔多斯盆地上古生界储层确定了基于常规测井资料计算横波时差关系式的待定系数ABC,通过最小二乘法拟合的3个待定系数值分别为2.74、25.45、-370.16,基于待定系数计算公式求取的横波时差与实测横波时差具有较好的一致性。通过该方法计算出研究区上古生界储层杨氏模量在35593~37997 MPa之间,泊松比在0.21~0.25之间。研究区岩石力学参数计算公式的确定及岩石力学参数计算为鄂尔多斯盆地气田勘探开发提供了数据基础。

     

  • 图  1  研究区上古生界储层计算横波时差与实测横波时差对比

    ①—浅灰色泥岩;②—灰黑色泥岩;③—灰白色中砂岩;④—灰白色细砂岩;⑤—灰黑色中砂岩;⑥—煤层

    Figure  1.  Comparison diagram of calculated and measured shear wave slowness in the Upper Paleozoic of study area

    图  2  研究区上古生界二叠系山西组—石盒子组砂地比平面图

    Figure  2.  Sand content distributions of Permian Shanxi-Shihezi Formation of Upper Paleozoic in the study area

    表  1  岩石力学实验及横波时差计算公式待定系数

    Table  1.   Rock mechanical test and the undetermined coefficients of the formula for shear wave slowness

    表  2  研究区上古生界储层泊松比及杨氏模量计算结果

    Table  2.   The calculated results of Young modulus and Poisson ration of Upper Paleozoic in the study area

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  • 收稿日期:  2012-06-29
  • 刊出日期:  2012-12-28

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