Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (2): 630-638.doi: 10.13278/j.cnki.jjuese.201502304

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Quantitative Interpretation of Carbonate Gas Reservoir Based on Rock Physics Template

Zhang Guangzhi1, Chen Jiaojiao1, Chen Huaizhen1, Zhang Jinqiang2, Yin Xingyao1   

  1. 1. School of Geosciences and Technology, China University of Petroleum (Huadong), Qingdao 266580, Shandong, China;
    2. Research Institute of Petroleum Exploration and Production, Sinopec, Beijing 100083, China
  • Received:2014-06-19 Published:2015-03-26

Abstract:

In the process of carbonate reservoir exploration and development, it is difficult for reservoir prediction and fluid identification. Aiming at this problem, we put forward a quantitative prediction method through making carbonate gas reservoir parameters based on the rock physics theories. First of all, considering the geological and well logging information of carbonate rock and according to the rock physics theories, we establish the carbonate rock physics model; and further we optimize the sensitive parameters (λρ and μρ) with the change of porosity, gas saturation, and establish the rock physics template for quantitative interpretation. Finally, the template and extracted parameters from seismic inversion were combined to decide the reservoir distribution and quantitatively interpret the porosity and gas saturation within the range of reservoir. The example analyses show that the porosity and gas saturation getting by our carbonate rock physics template are basically identical with the actual gas production and porosity. The reliability and applicability of carbonate rock physics template are thereby verified.

Key words: carbonate rocks, rock physics template, reservoir parameters, quantitative interpretation

CLC Number: 

  • P631.4

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