Complex Resistivity Dispersion Characteristics of Water-Bearing Coal Based on Double Cole-Cole Model
Joint Authors
Li, Jian
Lei, Dongji
Zhao, Chenguang
Meng, Hui
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Reservoir fracture evaluation is an important research topic in the coalfield.
In recent years, complex resistivity (CR) has been widely used in oil logging and achieved good results, such as permeability evaluation, water saturation (Sw) prediction, and aquifer identification.
Therefore, the method has the potential to evaluate coal seam fracture.
In the experiment, the real part R and imaginary part X of bituminous and anthracite coal with different Sw were measured by the impedance measuring instrument, then the Double Cole-Cole model was used to fit experimental data and analyze conductive mechanism.
The main results are as follows: (1) the dispersion of CR parameters Reρ and Imρ is closely related to the metamorphism degree, frequency, and Sw; (2) induced polarization is the fundamental reason for the variation of coal samples’ complex resistivity parameters with frequency change; and (3) the Double Cole-Cole model agrees well with the experimental data, and the model parameters m1 and τ2 are strongly correlated with Sw.
The parameters m1 and τ2 can be used to evaluate the Sw of fractures in coal seams and thus to evaluate the effect of hydraulic fracturing.
American Psychological Association (APA)
Li, Jian& Lei, Dongji& Zhao, Chenguang& Meng, Hui. 2019. Complex Resistivity Dispersion Characteristics of Water-Bearing Coal Based on Double Cole-Cole Model. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1116343
Modern Language Association (MLA)
Li, Jian…[et al.]. Complex Resistivity Dispersion Characteristics of Water-Bearing Coal Based on Double Cole-Cole Model. Advances in Civil Engineering No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1116343
American Medical Association (AMA)
Li, Jian& Lei, Dongji& Zhao, Chenguang& Meng, Hui. Complex Resistivity Dispersion Characteristics of Water-Bearing Coal Based on Double Cole-Cole Model. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1116343
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116343