ISSN 1004-4140
CN 11-3017/P
Volume 28 Issue 4
Aug.  2019
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LI Bingying, ZHANG Jiajia, TU Qicui, LIU Jiang, ZHANG Guangzhi, ZHAO Chen, ZHU Shengwei, FAN Xianggang. A Method for Directly Inverting Low Permeability “Sweet spot” by Using Elastic Impedance Equation[J]. CT Theory and Applications, 2019, 28(4): 407-416. DOI: 10.15953/j.1004-4140.2019.28.04.01
Citation: LI Bingying, ZHANG Jiajia, TU Qicui, LIU Jiang, ZHANG Guangzhi, ZHAO Chen, ZHU Shengwei, FAN Xianggang. A Method for Directly Inverting Low Permeability “Sweet spot” by Using Elastic Impedance Equation[J]. CT Theory and Applications, 2019, 28(4): 407-416. DOI: 10.15953/j.1004-4140.2019.28.04.01
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A Method for Directly Inverting Low Permeability “Sweet spot” by Using Elastic Impedance Equation

  • 1. CNOOC (China) Co., Ltd. Shanghai Branch, Shanghai 200335, China;

  • 2. School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China;

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  • Received Date: April 24, 2019
  • Available Online: November 07, 2021
  • Published Date: August 24, 2019
    Graphical Abstract
    • Abstract
  • The "sweet spot" in low-permeability reservoirs is a very important geological target in the exploration and development of low-permeability oil and gas.It is of great significance to study the "sweet spot" prediction and identification methods for low-permeability reservoirs.Firstly, based on the definition of low-permeability "sweet plot", the sensitive elastic parameters of "sweet spot" are determined.On this basis, the elastic impedance inversion and "sweet spot" sensitive parameters prediction are proposed by the elastic impedance equation including the sensitive parameters of "sweet plot".This method reduces the cumulative error of indirect prediction of "sweet plot" and improves the accuracy of the "sweet plot" prediction.Combined with the Facies and fluids probabilities(FFP) technology, it achieves better results in the prediction of the "sweet plot" for the target area.
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