Prediction of hydrocarbon reservoirs within coal-bearing formations
File(s)2020_JGE_Prediction of hydrocarbon reservoirs.pdf (7.65 MB)
Published version
Author(s)
He, Faqi
Rao, Ying
Wang, Weihong
Wang, Yanghua
Type
Journal Article
Abstract
This paper presents a case study on the prediction of hydrocarbon reservoirs within coal-bearing formations of the Upper Palaeozoic. The target reservoirs are low-permeability low-pressure tight-sandstone reservoirs in the Daniudi Gas Field, Ordos Basin, China. The prime difficulty in reservoir prediction is caused by the interbedding coal seams within the formations, which generate low-frequency strong-amplitude reflections in seismic profiles. To tackle this difficulty, first, we undertook a careful analysis regarding the stratigraphy and lithology of these coal-bearing formations within the study area. Then, we conducted a geostatistical inversion using 3D seismic data and obtained reservoir parameters including seismic impedance, gamma ray, porosity and density. Finally, we carried out a reservoir prediction in the coal-bearing formations, based on the reservoir parameters obtained from geostatistical inversion and combined with petrophysical analysis results. The prediction result is accurately matched with the actual gas-test data for the targeted four segments of the coal-bearing formations.
Date Issued
2020-06-01
Date Acceptance
2020-01-24
Citation
Journal of Geophysics and Engineering, 2020, 17 (3), pp.484-492
ISSN
1742-2132
Publisher
Oxford University Press (OUP)
Start Page
484
End Page
492
Journal / Book Title
Journal of Geophysics and Engineering
Volume
17
Issue
3
Copyright Statement
© The Author(s) 2020. Published by Oxford University Press on behalf of the Sinopec Geophysical Research Institute.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Identifier
https://academic.oup.com/jge/article/17/3/484/5758014
Subjects
Science & Technology
Physical Sciences
Geochemistry & Geophysics
geostatistical inversion
reservoir prediction
clastic reservoir
coal-bearing formations
Ordos Basin
ORDOS BASIN
SIMULATION
0404 Geophysics
0905 Civil Engineering
Geochemistry & Geophysics
Publication Status
Published
OA Location
https://academic.oup.com/jge/article/17/3/484/5758014
Date Publish Online
2020-02-25