Flow Unit Model of Channel Sand Body and Its Effect on Remnant Oil Distribution: A Case Study of PI Formation in the Eastern Transition Zone of Daqing Oilfield
Joint Authors
Zhang, Yue
Ji, You-liang
Wen, Hui-jian
Ma, Shi-zhong
Bai, Dong-lai
Zhang, Bin-chi
Xing, Ben-kang
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-14
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
To analyze the effect of various flow units in a channel sand body on remnant oil, we established a connection between various flow unit types and the remnant oil distribution.
Using stratigraphic correlation and the characterization of sedimentary microfacies, we describe a single sand body, point bar, and narrow channel located at the injection-production well pattern of well B2-60-FB271 in the Eastern transition zone of the Daqing Placanticline.
Architecture models of the point bar and narrow channel are also established using a series of parameters from different measurement methods.
Four types of flow units (strong-current limiting, medium-current limiting, weak-current limiting, and none-current limiting) in the point bar sand body were identified, whereas one type, unshielded unit, was identified in the narrow channel.
Geological parameters, such as porosity, permeability, and pore-throat radius (r50), were optimized to quantitatively characterize these various flow units.
Samples were obtained from well B2-60-FB271 and analyzed by the freeze-fluorescence thin section technique.
According to the displacement degree, the microscopic remnant oil was divided into three types: (1) free-state remnant oil, (2) semi-free-state remnant oil, and (3) bound-state remnant oil.
We found that the strong-current limiting flow unit in the point bar is the enrichment area of free-state microscopic remnant oil and that the medium-current limiting and weak-current limiting flow units also have relatively high free microscopic remnant oil.
These constitute the remaining oil enrichment areas in the study area.
American Psychological Association (APA)
Zhang, Yue& Ji, You-liang& Wen, Hui-jian& Ma, Shi-zhong& Bai, Dong-lai& Zhang, Bin-chi…[et al.]. 2020. Flow Unit Model of Channel Sand Body and Its Effect on Remnant Oil Distribution: A Case Study of PI Formation in the Eastern Transition Zone of Daqing Oilfield. Geofluids،Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1159680
Modern Language Association (MLA)
Zhang, Yue…[et al.]. Flow Unit Model of Channel Sand Body and Its Effect on Remnant Oil Distribution: A Case Study of PI Formation in the Eastern Transition Zone of Daqing Oilfield. Geofluids No. 2020 (2020), pp.1-20.
https://search.emarefa.net/detail/BIM-1159680
American Medical Association (AMA)
Zhang, Yue& Ji, You-liang& Wen, Hui-jian& Ma, Shi-zhong& Bai, Dong-lai& Zhang, Bin-chi…[et al.]. Flow Unit Model of Channel Sand Body and Its Effect on Remnant Oil Distribution: A Case Study of PI Formation in the Eastern Transition Zone of Daqing Oilfield. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1159680
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1159680