Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field

Benxin Chi; Lianjie Huang

Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field

Benxin Chi
, Lianjie Huang

Los Alamos National Laboratory

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The U.S. Department of Energy selected the Raft River geothermal field as an enhanced geothermal system demonstration project in 2010. Reliable geothermal reservoir characterization requires high-resolution subsurface imaging. We carried out a vertical seismic profile (VSP) survey in 2016 along five walkaway lines around the stimulation well, RRG-9 ST1. We construct a high-resolution velocity model using first-arrival traveltime tomography of the downgoing VSP data and elastic-waveform inversion of the VSP waveform data. We then use the inverted P- and S-velocity models and our newly developed least-squares reverse-time migration to obtain high-resolution P- and S-images of the Raft River geothermal reservoir. Our inversion version clearly reveals the low-velocity Narrows zone, which is the stimulation zone to enhance geothermal production.

Original language	English
Title of host publication	Geothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018
Publisher	Geothermal Resources Council
Pages	1360-1368
Number of pages	9
ISBN (Electronic)	0934412235
State	Published - 2018
Externally published	Yes
Event	Geothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018 - Reno, United States Duration: 14 Oct 2018 → 17 Oct 2018

Publication series

Name	Transactions - Geothermal Resources Council
Volume	42
ISSN (Print)	0193-5933

Conference

Conference	Geothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018
Country/Territory	United States
City	Reno
Period	14/10/18 → 17/10/18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Elastic-waveform inversion
Enhanced geothermal system
Least-squares reverse-time migration
Raft River geothermal field
VSP
Velocity model
Vertical seismic profiling
Walkaway

Cite this

@inproceedings{53cdd794368b4b6083adcafa9f373766,

title = "Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field",

abstract = "The U.S. Department of Energy selected the Raft River geothermal field as an enhanced geothermal system demonstration project in 2010. Reliable geothermal reservoir characterization requires high-resolution subsurface imaging. We carried out a vertical seismic profile (VSP) survey in 2016 along five walkaway lines around the stimulation well, RRG-9 ST1. We construct a high-resolution velocity model using first-arrival traveltime tomography of the downgoing VSP data and elastic-waveform inversion of the VSP waveform data. We then use the inverted P- and S-velocity models and our newly developed least-squares reverse-time migration to obtain high-resolution P- and S-images of the Raft River geothermal reservoir. Our inversion version clearly reveals the low-velocity Narrows zone, which is the stimulation zone to enhance geothermal production.",

keywords = "Elastic-waveform inversion, Enhanced geothermal system, Least-squares reverse-time migration, Raft River geothermal field, VSP, Velocity model, Vertical seismic profiling, Walkaway",

author = "Benxin Chi and Lianjie Huang",

note = "Publisher Copyright: {\textcopyright} 2018 International Journal of Caring Sciences. All rights reserved.; Geothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018 ; Conference date: 14-10-2018 Through 17-10-2018",

year = "2018",

language = "英语",

series = "Transactions - Geothermal Resources Council",

publisher = "Geothermal Resources Council",

pages = "1360--1368",

booktitle = "Geothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018",

address = "美国",

}

Chi, B & Huang, L 2018, Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field. in Geothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018. Transactions - Geothermal Resources Council, vol. 42, Geothermal Resources Council, pp. 1360-1368, Geothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018, Reno, United States, 14/10/18.

Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field. / Chi, Benxin; Huang, Lianjie.
Geothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018. Geothermal Resources Council, 2018. p. 1360-1368 (Transactions - Geothermal Resources Council; Vol. 42).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field

AU - Chi, Benxin

AU - Huang, Lianjie

PY - 2018

Y1 - 2018

N2 - The U.S. Department of Energy selected the Raft River geothermal field as an enhanced geothermal system demonstration project in 2010. Reliable geothermal reservoir characterization requires high-resolution subsurface imaging. We carried out a vertical seismic profile (VSP) survey in 2016 along five walkaway lines around the stimulation well, RRG-9 ST1. We construct a high-resolution velocity model using first-arrival traveltime tomography of the downgoing VSP data and elastic-waveform inversion of the VSP waveform data. We then use the inverted P- and S-velocity models and our newly developed least-squares reverse-time migration to obtain high-resolution P- and S-images of the Raft River geothermal reservoir. Our inversion version clearly reveals the low-velocity Narrows zone, which is the stimulation zone to enhance geothermal production.

AB - The U.S. Department of Energy selected the Raft River geothermal field as an enhanced geothermal system demonstration project in 2010. Reliable geothermal reservoir characterization requires high-resolution subsurface imaging. We carried out a vertical seismic profile (VSP) survey in 2016 along five walkaway lines around the stimulation well, RRG-9 ST1. We construct a high-resolution velocity model using first-arrival traveltime tomography of the downgoing VSP data and elastic-waveform inversion of the VSP waveform data. We then use the inverted P- and S-velocity models and our newly developed least-squares reverse-time migration to obtain high-resolution P- and S-images of the Raft River geothermal reservoir. Our inversion version clearly reveals the low-velocity Narrows zone, which is the stimulation zone to enhance geothermal production.

KW - Elastic-waveform inversion

KW - Enhanced geothermal system

KW - Least-squares reverse-time migration

KW - Raft River geothermal field

KW - VSP

KW - Velocity model

KW - Vertical seismic profiling

KW - Walkaway

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M3 - 会议稿件

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BT - Geothermal's Role in Today's Energy Market - Geothermal Resources Council 2018 Annual Meeting, GRC 2018

PB - Geothermal Resources Council

T2 - Geothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, GRC 2018

Y2 - 14 October 2018 through 17 October 2018

ER -

Least-squares reverse-time migration of walkaway VSP data from the Raft river geothermal field

Abstract

Publication series

Conference

UN SDGs

Keywords

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