Numerical simulation of instability of geothermal production well

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

Numerical simulation of instability of geothermal production well

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

エネルギー資源工学

研究成果: 書籍/レポートタイプへの寄稿 › 会議への寄与

4 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
版	PART 2
出版ステータス	出版済み - 12月 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月 29 2013 → 10月 2 2013

出版物シリーズ

名前	Transactions - Geothermal Resources Council
番号	PART 2
巻	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
City	Las Vegas, NV
Period	9/29/13 → 10/2/13

!!!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

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

他のファイルとリンク

引用スタイル

Numerical simulation of instability of geothermal production well. / Itoi, Ryuichi; Katayama, Yasunari; Tanaka, Toshiaki その他.

Geothermal Resources Council Annual Meeting, GRC 2013: A Global Resource, from Larderello to Las Vegas. PART 2. ed. 2013. p. 837-841 (Transactions - Geothermal Resources Council; Vol. 37, No. PART 2).

研究成果: 書籍/レポートタイプへの寄稿 › 会議への寄与

Itoi, R, Katayama, Y, Tanaka, T, Kumagai, N & Iwasaki, T 2013, Numerical simulation of instability of geothermal production well. in Geothermal Resources Council Annual Meeting, GRC 2013: A Global Resource, from Larderello to Las Vegas. PART 2 edn, Transactions - Geothermal Resources Council, no. PART 2, vol. 37, pp. 837-841, Geothermal Resources Council Annual Meeting: A Global Resource, from Larderello to Las Vegas, GRC 2013, Las Vegas, NV, 米国, 9/29/13.

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title = "Numerical simulation of instability of geothermal production well",

abstract = "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.",

author = "Ryuichi Itoi and Yasunari Katayama and Toshiaki Tanaka and Naoto Kumagai and Takaichi Iwasaki",

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booktitle = "Geothermal Resources Council Annual Meeting, GRC 2013",

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T1 - Numerical simulation of instability of geothermal production well

AU - Itoi, Ryuichi

AU - Katayama, Yasunari

AU - Tanaka, Toshiaki

AU - Kumagai, Naoto

AU - Iwasaki, Takaichi

PY - 2013/12/1

Y1 - 2013/12/1

N2 - 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.

AB - 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.

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M3 - Conference contribution

AN - SCOPUS:84897608185

SN - 9781629932859

T3 - Transactions - Geothermal Resources Council

SP - 837

EP - 841

BT - Geothermal Resources Council Annual Meeting, GRC 2013

T2 - Geothermal Resources Council Annual Meeting: A Global Resource, from Larderello to Las Vegas, GRC 2013

Y2 - 29 September 2013 through 2 October 2013

ER -

Numerical simulation of instability of geothermal production well

抄録

出版物シリーズ

その他

!!!All Science Journal Classification (ASJC) codes

UN SDG

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