Numerical simulation of instability of geothermal production well

Ryuichi Itoi, Yasunari Katayama, Toshiaki Tanaka, Naoto Kumagai, Takaichi Iwasaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

Oscillations in wellhead pressure are sometimes observed in production wells with multiple feedzones. This instability affects stable steam production, and in extreme cases may cause steam production from the well to cease altogether. In this study, we developed a coupled model of transient wellbore and reservoir flows with two well feedzones. Then, numerical simulations were carried out to evaluate the effects of reservoir temperature on the flow characteristics of wells with multiple feedzones. These simulation results show that the cyclic changes in wellhead pressure are caused by temporal changes in the flash point depth within the wellbore.

本文言語英語
ホスト出版物のタイトルGeothermal Resources Council Annual Meeting, GRC 2013
ホスト出版物のサブタイトルA Global Resource, from Larderello to Las Vegas
ページ837-841
ページ数5
PART 2
出版ステータス出版済み - 12 1 2013
イベントGeothermal Resources Council Annual Meeting: A Global Resource, from Larderello to Las Vegas, GRC 2013 - Las Vegas, NV, 米国
継続期間: 9 29 201310 2 2013

出版物シリーズ

名前Transactions - Geothermal Resources Council
番号PART 2
37
ISSN(印刷版)0193-5933

その他

その他Geothermal Resources Council Annual Meeting: A Global Resource, from Larderello to Las Vegas, GRC 2013
国/地域米国
CityLas Vegas, NV
Period9/29/1310/2/13

All Science Journal Classification (ASJC) codes

  • 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

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