Induced Seismicity Potential in Energy Technologies (2013) / Chapter Skim
Currently Skimming:
6 Steps Toward a "Best Practices" Protocol
6 Steps Toward a "Best Practices" Protocol
Pages 151-164
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 151... ...
and management and mitigation of the effects of any felt seismic events that occur during operation. This chapter outlines specific practices that consider induced seismicity both before and during the actual operation of an energy project and that could be employed in the devel opment of a "best practices" protocol specific to each energy technology.
|
From page 152... ...
. Because of these shared interests and potential responsibilities, the committee suggests that the agency with authority to issue a new injection permit or the authority to revise an existing injection permit is the most appropriate agency to oversee decisions made with respect to induced seismic events, whether before, during, or after an event has occurred.
|
From page 153... ...
TOTAL "YES" ANSWERS 0 10 1 5 4 a Assumes stress measurements completed prior to survey. NOTE: RMA, Rocky Mountain Arsenal.
|
From page 154... ...
seismic activity in the area.1 An Example Best Practices Protocol for Induced Seismicity Associated with Enhanced Geothermal Systems As an example of a protocol used in projects expected to result in induced seismicity, the Department of Energy (DOE) has published a best practices protocol for addressing the potential of induced seismicity associated with the development of enhanced geo thermal systems (EGS)
|
From page 155... ...
. Using this protocol as a foundation, the committee has adapted the protocol's set of seven steps in Table 6.3 to illustrate a set of parallel activities, with steps 2 through 7 under aken essentially concurrently, as opposed to sequentially, to help manage and miti t gate induced seismicity from injection associated with EGS.
|
From page 156... ...
Estimate the ground shaking hazard from the natural seismicity to provide a baseline to evaluate the additional hazard from the induced seismicity.
|
From page 157... ...
Such a system, although rarely employed in energy technology projects with active cases of induced seismicity,2 a llows for low levels of seismicity but adds additional monitoring and mitigation requirements when seismic events are of sufficient intensity to result in a concern for public health and safety. The preferred criterion to be used for such a control system has been the level of ground motion observed at the site of the sensitive receptor, be it a public or private facility.
|
From page 158... ...
conditions. INDUCED SEISMICITY POTENTIAL IN ENERGY TECHNOLOGIES timely public access to results.
|
From page 159... ...
Indirect Mitigation Provide local jobs, support local community facilities, and provide compensation if appropriate. Continue indirect Plans mitigation activities as long as needed.
|
From page 160... ...
Hazard Assessment Evaluate the potential additional Review and reassess the potential Report to the appropriate hazard to be expected from for induced seismicity based regulatory agencies and the public locally induced seismicity. on any additional information on any actual hazards observed obtained during drilling and during injection activity.
|
From page 161... ...
NOTE: The entire protocol would apply to injection wells proposed in areas where induced seismicity has actually occurred. In areas where induced seismicity was not expected but later occurred, the shaded requirements would apply as revisions to the original injection permit.
|
From page 162... ...
seismic images or other geological information from the well operator may be requested if the well appears to be sited in a high-risk area. MITIGATING THE EFFECTS OF INDUCED SEISMICITY ON PUBLIC AND PRIVATE FACILITIES The best practices protocols appropriately include an emphasis on establishing a public relations plan to inform the public as well as the appropriate regulatory agencies of the purpose of the proposed or existing project, the intended operations, and the expected impacts on the nearby communities and/or facilities.
|
From page 163... ...
Real-time results of the seismic monitoring are continuously available to all at the Northern California Seismic website, and the semiannual meetings of this committee provide a forum for all the stakeholders to compare the locations and magnitudes of the reported seismic events to the locations of the reported production and injection activities. Despite the benefits of establishing the SMAC, the geothermal operators were still viewed by some local residents as not having taken sufficient responsibility for mitigating the effects of the clearly increased numbers of induced seismic events being felt within the local communities (see Box 3.1)
|
From page 164... ...
2012. Protocol for Addressing Induced Seismicity Associated with Enhanced Geothermal Systems.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.