Estimation of fracture surface area based on tracer and temperature histories

研究成果: Conference contribution

抄録

In EGS reservoirs, a fracture surface area is one of key uncertainty in development. We propose a method to estimate cumulative fracture surface area for each multiple flow path based on tracer and temperature data with cold water injection. Tracer response is used to obtain the flow properties and determine the pore volume for each flow path. By substituting the pore volumes, analytical solutions of heat transfer equation can consist of measurable and/or controllable properties except fracture surface area for each path. The unknown fracture surface areas are estimated by comparison between the superposition of analytical solutions of heat transfer equations and observed temperature decline. Validation with numerical simulation results suggests that even though the number of flow paths is unknown, use of "virtual flow path" can estimate the pore volumes and fracture surface areas. For the simulation results, temperature history for 28 days (10% of temperature decline) provides reasonable estimation of fracture surface area with error of 15.0%.

本文言語English
ホスト出版物のタイトルGeothermal Energy
ホスト出版物のサブタイトルPower To Do More - Geothermal Resources Council 2017 Annual Meeting, GRC 2017
出版社Geothermal Resources Council
ページ2865-2879
ページ数15
ISBN(電子版)0934412227
出版ステータスPublished - 2017
イベントGeothermal Resources Council 41st Annual Meeting - Geothermal Energy: Power To Do More, GRC 2017 - Salt Lake City, United States
継続期間: 2017 10 12017 10 4

出版物シリーズ

名前Transactions - Geothermal Resources Council
41
ISSN(印刷版)0193-5933

Other

OtherGeothermal Resources Council 41st Annual Meeting - Geothermal Energy: Power To Do More, GRC 2017
国/地域United States
CitySalt Lake City
Period17/10/117/10/4

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

「Estimation of fracture surface area based on tracer and temperature histories」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