Modeling and imaging multiply generated and scattered tube waves due to multiple hydraulic fractures

Shohei Minato, Ranajit Ghose, T Tsuji, M Ikeda, Kozo Onishi

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

Although tube-wave generation and tube-wave scattering in VSP experiments are extensively used to detect and characterize subsurface hydraulic fractures (i.e., open fractures and/or permeable layers), the majority of the earlier studies consider only single generation and single scattering (reflection and transmission) responses. We formulate a new integral equation which represents total tube wavefield including multiple reflection, transmission and generation due to multiple fractures. The accurate prediction of the complex signatures of total tube wavefield is crucial for further characterizing the hydraulic properties of highly-fractured areas, such as a fault-damaged zone. Deriving the integral equation further enables us to develop a new approach to imaging and characterizing hydraulic fractures. We numerically show that the proposed integral equation can be used to predict the total tube wavefield. A spatial-focusing analysis is useful to identify the positions of the hydraulic fractures. We applied the developed theory to field VSP data obtained at a fault-damaged zone in the Median Tectonic Line, Shikoku, Japan. Our preliminary result shows evidence that tube waves are generated and scattered at open fractures and thin layers of the cataclasites at this field
Original languageEnglish
Title of host publicationSEG Technical Program Expanded Abstracts 2016
EditorsCharles Sicking, John Ferguson
PublisherSEG
Pages682-687
Number of pages6
DOIs
Publication statusPublished - 2016
EventSEG International Exposition and 86th Annual Meeting - Dallas & Kay Bailey Hutchison Convention Center, Dallas, United States
Duration: 16 Oct 201621 Oct 2016
Conference number: 86
http://seg.org/Events/Annual-Meeting

Publication series

NameSEG Technical Program Expanded Abstracts
PublisherSEG
Volume2016
ISSN (Electronic)1949-4645

Conference

ConferenceSEG International Exposition and 86th Annual Meeting
Abbreviated titleSEG 2016
CountryUnited States
CityDallas
Period16/10/1621/10/16
Internet address

Keywords

  • monitoring
  • ultrasonic
  • reflection
  • time-lapse
  • correlation

Fingerprint

Dive into the research topics of 'Modeling and imaging multiply generated and scattered tube waves due to multiple hydraulic fractures'. Together they form a unique fingerprint.

Cite this