Characterization of tracer responses using fractional derivative-based mathematical model and its application to prediction of mass transport in fractured reservoirs

Anna Suzuki, Hiroshi Makita, Yuichi Niibori, Sergei A. Fomin, Vladimir A. Chugunov, Toshiyuki Hashida

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

Tracer testing is a standard method for tracing mass transport within a geothermal reservoir and can be a valuable tool in the design and management of production and injection operations. In this study, we discuss the use of fractional advection-dispersion equation (fADE) model to characterize tracer responses with the objective of predicting mass transport in complex fractured reservoirs. A 3D fracture network model for flow analysis (FRACSIM-3D) is utilized to produce numerical data of tracer responses in fractured reservoirs. It has been shown that the FRACSIM-3D reproduces highly anomalous behavior of mass transport, which is attributable to the preferential pathways that arise because of the degree of fracture connectivity. The fADE mathematical model is applied to analyze the numerical tracer results simulated by FRACSIM-3D. For comparison, the advection-dispersion equation (ADE) is also used to characterize the tracer responses in addition to the fADE. Based on the tracer data obtained for a well interval of 50m, both the fADE and ADE model are applied to predict the tracer responses in the case where the well spacing is extended to 80m. It is demonstrated that the ADE model produces tracer curves which deviate significantly from the FRACSIM-3D results particularly for long-term behaviors, while the tracer responses predicted by the fADE model are in reasonable agreement with the numerically obtained data by FRACSIM-3D.

本文言語English
ホスト出版物のタイトルGeothermal Resources Council Annual Meeting 2012, GRC 2012 - Geothermal
ホスト出版物のサブタイトルReliable, Renewable, Global
ページ1391-1396
ページ数6
出版ステータスPublished - 2012 12 1
イベントGeothermal Resources Council Annual Meeting 2012 - Geothermal: Reliable, Renewable, Global, GRC 2012 - Reno, NV, United States
継続期間: 2012 9 302012 10 3

出版物シリーズ

名前Transactions - Geothermal Resources Council
36 2
ISSN(印刷版)0193-5933

Other

OtherGeothermal Resources Council Annual Meeting 2012 - Geothermal: Reliable, Renewable, Global, GRC 2012
国/地域United States
CityReno, NV
Period12/9/3012/10/3

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 地球物理学

フィンガープリント

「Characterization of tracer responses using fractional derivative-based mathematical model and its application to prediction of mass transport in fractured reservoirs」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル