Cyclic soft stimulation (CSS): a new fluid injection protocol and traffic light system to mitigate seismic risks of hydraulic stimulation treatments
Item
Title (Dublin Core)
Cyclic soft stimulation (CSS): a new fluid injection protocol and traffic light system to mitigate seismic risks of hydraulic stimulation treatments
Description (Dublin Core)
Abstract Hydraulic stimulation treatments are standard techniques to access geologic resources which cannot economically be exploited with conventional methods. Fluid injection into unproductive formations may increase their permeability by forming new fractures and activating existing ones. A major risk of this process is a possible occurrence of seismic events that can potentially be felt on the surface or even cause minor damage. In this paper, an advanced fluid injection scheme is proposed that aims to mitigate these unwanted events and to improve the permeability enhancement process. Amongst other procedures, it involves different types of cyclic injection and a traffic light system specifically designed for cyclic injection schemes. The concept is applied to develop a stimulation design for the Pohang enhanced geothermal system site in Korea, where it was first deployed in the field in August 2017.
Creator (Dublin Core)
Hannes Hofmann
Günter Zimmermann
Arno Zang
Ki-Bok Min
Subject (Dublin Core)
Hydraulic stimulation
Cyclic injection
Traffic light system
Induced seismicity
Risk mitigation
Enhanced geothermal systems (EGS)
Renewable energy sources
TJ807-830
Geology
QE1-996.5
Publisher (Dublin Core)
SpringerOpen
Date (Dublin Core)
2018-12-01T00:00:00Z
Type (Dublin Core)
article
Identifier (Dublin Core)
10.1186/s40517-018-0114-3
2195-9706
https://doaj.org/article/f9fe0f67336b4d8e925d2d1e12b58386
Source (Dublin Core)
Geothermal Energy, Vol 6, Iss 1, Pp 1-33 (2018)
Language (Dublin Core)
EN
Relation (Dublin Core)
http://link.springer.com/article/10.1186/s40517-018-0114-3
https://doaj.org/toc/2195-9706
Provenance (Dublin Core)
Journal Licence: CC BY