A New Evaluation Method for the Fracability of a Shale Reservoir Based on the Structural Properties
Joint Authors
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-12-04
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The fracability of shale reservoirs is one of the key indicators used for evaluating whether or not the shale can be used as a “sweet spot zone.” It has been determined that the structural properties of rock have important influences on the evaluation of the fracability of reservoirs.
In the current study, five rock quality designation (RQD) calculation methods were compared and analyzed for the purpose of selecting an RQDI for characterizing rock structures.
Focused on the lack of structural factors included in the previous fracability evaluation methods, a new model for fracability evaluation based on the combination of the brittleness index, structural index, and fracture toughness was constructed using a linear elastic fracture theory.
The model showed that good fracability not only included higher brittleness but also required less energy to produce cracks.
Meanwhile, good fracability also required more discontinuous structural planes.
In the current study, a formation with a higher fracability index was considered to be a fractureable interval and a formation with a lower fracability index was a fracture barrier.
Finally, the reservoir fracability index was modeled using the Xike 2 well in the north of Guizhou Province as a case study.
Subsequently, a fracability logging evaluation method based on the fracability index model was determined, which will potentially provide a new technical tool for future fracturing optimization processes.
American Psychological Association (APA)
Sui, Haoyue& Gao, Wei& Hu, Ruilin. 2019. A New Evaluation Method for the Fracability of a Shale Reservoir Based on the Structural Properties. Geofluids،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1152711
Modern Language Association (MLA)
Sui, Haoyue…[et al.]. A New Evaluation Method for the Fracability of a Shale Reservoir Based on the Structural Properties. Geofluids No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1152711
American Medical Association (AMA)
Sui, Haoyue& Gao, Wei& Hu, Ruilin. A New Evaluation Method for the Fracability of a Shale Reservoir Based on the Structural Properties. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1152711
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1152711