Lithologic Reservoirs >

2013 , Vol. 25 >Issue 1: 107 - 110

DOI: https://doi.org/10.3969/j.issn.1673-8926.2013.01.020

Calculation of permeability in igneous rock formation based on Stoneley wave

  • WANG Zhiping ,
  • QIN Qirong ,
  • WANG Baoquan ,
  • ZENG Yi ,
  • LI Yu
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  • 1. Research Institute of Southern Exploration Branch， Sinopec， Chengdu 610041， China； 2. Key Laboratory of Exploration Technologies for Oil & Gas Resources， Ministry of Education， Yangtze University， Wuhan 430100， China； 3. Well Logging Company， North China Petroleum Bureau of Sinopec， Xinxiang 453000， China

Online published: 2013-02-20

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Abstract

Igneous reservoir is characterized by dual porosity. Permeability calculation is one of the difficulties in volcanic reservoir evaluation. In order to enhance the accuracy of permeability calculation, Stoneley wave, compression wave and shear wave were picked out from the dipole shear wave image logging. In combination with borehole diameter, formation density and porosity curve, the theoretical Stoneley moveout was calculated. The difference between the measured Stoneley moveout and the calculated theoretical Stoneley moveout is defined as qualitative indicator of fluid mobility which can indicate the permeability and pore connectivity of reservoir and validation of fracture. The relationship between the qualitative indicator of fluid mobility and the total effective permeability can be used to estimate igneous formation permeability. The actual application in deep igneous rock of Songliao Basin proves the validity of this method.

Key words： fracture; origin; Xujiahe Formation; Dayi area; Sichuan Basin

Cite this article

WANG Zhiping , QIN Qirong , WANG Baoquan , ZENG Yi , LI Yu . Calculation of permeability in igneous rock formation based on Stoneley wave[J]. Lithologic Reservoirs, 2013 , 25(1) : 107 -110 . DOI: 10.3969/j.issn.1673-8926.2013.01.020

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