TexNet and CISR: Seismicity Monitoring and Research in Texas

Transcription

1 TexNet and CISR: Seismicity Monitoring and Research in Texas Michael H. Young, Alexandros Savvaidis, and Peter Hennings Bureau of Economic Geology University of Texas at Austin Annual Forum State Water Sustainability Planning September 13, 2016

2 Some Historical Earthquakes in Texas (>M3.0) 1978 Snyder M Azle M3.6 Irving M3.6 Venus M Timpson M Andrews M Marathon M5.7 Source: earthquake.usgs.gov 2011 Fashing M4.8

3 2015 Legislative Action on TX Seismicity $1.6M $1.65M 36% 37% Hardware Install+OpEx (thru Aug '17) 27% $1.2M CISR State Research

4 TexNet Goals To monitor, locate, and catalog seismicity across Texas, capable of detecting and locating earthquakes with magnitudes M2.0 To improve investigations of ongoing sequences by deploying temporary seismic monitoring stations and conducting site-specific assessments, especially for Events >M3.0 in or near urban areas, or Events co-located where ongoing human activities may be related to earthquake activity

5 Challenges Texas is Diverse 12+ distinct tectonic areas Anadarko Basin Amarillo Uplift Palo Duro Arch Midland Basin Delaware Basin Trans-Pecos/Marathon Val Verde Gulf Coast Talco/Mexia/Balcones East Texas Basin Sabine Uplift Ft Worth Basin Llano/Bend Arch Many known fault systems that are poorly constrained in the subsurface

6 Seismicity and Industry Activity Study Areas Seismicity with oil & gas activity: Ft. Worth Basin (FW), Permian Basin (PB) and Cogdell Field (C), Eagle Ford play area (EF), North East Texas (NE) Seismicity with limited oil & gas activity: Southwest Texas (SW) Oil & gas activity with no seismicity: Southeast Texas (SE) Mixture of the above: Texas Panhandle (PH) PH PB C SW EF FW SE NE 6

7 Stakeholder Value Seismicity Placement of Portable Seismic Network Stakeholder Value: perceived value of data acquisition, alignment with social and/or economic drivers, guidance from the TexNet TAC Scientific Value: degree that data acquisition supports specific or future research activities using testable hypotheses and/or provides important data for future research Seismicity: natural and potentially induced (as from Frohlich et al., 2016) Injection/Disposal Activity: general or change in the activity of historical injection Study Areas Value Ranking FW Study Areas Seismicity & Disposal Activity FW qualitative factors will become quantitative with time PH C PB NE PB C PB SW FW SE EF EF NE PH EF PH NE SE SW C SW SE Immediate Scientific Value Injection/Disposal Activity 7

8 Portable Station Deployment Plan Permian Basin stations near Pecos - 9 at Cogdell Field near Pecos and elsewhere PH C Ft Worth Basin stations to be adjusted depending on seismicity trends and availability of other sensors UT-BEG rapid deployment reserve stations stations (other deployed portable stations can be repositioned to augment rapid deployment reserve) PB SW EF FW SE NE Northeast Texas stations stations Eagle Ford near Fashing near Fashing and elsewhere 8

9 Hardware Setup of Permanent Station Pole mount hardware Installation: 6 Channel Datalogger Wireless Modem 200Ah Battery 150W Solar Panel, and 120sec 3 Component Post-Hole Seismometer

10 CISR: Leveraging State Funds Center for Integrated Seismicity Research CISR will conduct fundamental and applied research to better understand naturally occurring and potentially induced seismicity and the associated risks, and to discern strategies for communicating with stakeholders and responding to public concerns regarding seismicity. Total = $5.37MM IA* 21% State 79% Public and Educators Government and Regulators Academia Industry

11 CISR: Expanding TexNet s Goals Improved fluid management and risking operations Assessment of basin seismogenic potential Improved assessment of seismic hazard to infrastructure Establishment of an appropriate response management facility Improved vehicles for communication of data, knowledge and risk to a variety of stakeholders

12 TexNet-CISR Organization Governor Legislature Technical Advisory Committee Robie Vaughn - Chair Dan Hill Chris Hillman Dana Jurick Hal Macartney Kris Nygaard Craig Pearson Brian Stump Scott Tinker Industrial Associates Apache BHP Chevron ConocoPhillips Occidental EOG Pioneer Texas O&G Inst XTO/ExxonMobil Anadarko Bureau Directorship Scott Tinker, Michael Young TexNet Seismic Network Alexandros Savvaidis B 2 network technicians B Seismology Cliff Frohlich I Jake Walter I Taylor Borgfeldt I,3 Alexandros Savvaidis B Heather DeShon S Kevin Kwong S,2 Oner Sufri S,1 Center for Integrated Seismicity Research Co-PIs: Peter Hennings, Ellen Rathje Hydrology, Faults, Geomodels Peter Hennings B Julia Gale B Chris Zahm B Casee Lemons B Fault Interpretation Tech B BEG Hydrology Gp B BEG Geomodeling Gp B Geomechanics and Reservoir Modeling Jon Olson P Rich Schultz P Peter Eichhubl B Mohsen Babazadeh P,2 Valerie Gono P,2 Zhiqiang Fan B,1 Akhil Datta-Gupta T Michael King T Jihoon Kim T Seismic Hazard and Risk Assessment Ellen Rathje C George Zalachoris C,1 Brady Cox C Patricia Clayton C B BEG I UTIG P UT-PGE T A&M-PE Science Advisory Council Seismic Risk Social Science Lee Ann Kahlor PC Art Markman PC Mary Beth Deline PC,1 Hilary Olson I,P C UT-CAEE PC UT-Psy/Comm S SMU Seismology SHSU 1 Post Doc 2 PhD student 3 MS student

13 TexNet-CISR Science Foci and Timing State-Wide and General Topics network procurement and installation 2. network management and data stream 3. R&D products to improve network performance 4. EQ compilations and characterizations 5. stress and fault mapping 6. earthquake risk social science and messaging strategies 7. outreach Ft Worth Basin Integrated Study 1. local seismic networks and EQ studies 2. basin-scale fluid budgets and pore pressure 3. stress characterization (SCITS) 4. fault characterization 5. 3D basin geo and hydrologic and modeling 6. fault reactivation analysis and mapping 7. computational modeling of seismicity mechanics 8. assessment of basin seismogenic potential Panhandle Seismicity Study 1. seismicity analysis (existing and TA stations) 2. *integrated geological characterization 3. assessment of basin seismogenic potential Greater Permian Basin Integrated Study 1. local seismicity base-line studies and analyses 2. *integrated geological characterization 3. assessment of basin seismogenic potential Eagle Ford Operating Area Integrated Study 1. numerous local seismicity acquisitions and analyses 2. *integrated geological characterization 3. assessment of basin seismogenic potential * *integrated geological characterization

14 Current Status Nanometrics (Ontario, Canada) awarded contract after public bidding process. Final hardware delivery expected by the mid September. We have identified provisional locations for permanent and auxiliary seismometers. Site visits and 24h noise surveys are finalized. We have identified station locations for 12 portable stations in FWB. Current expectation is for system to be operational and to begin streaming data by September Big issue identifying landowners and securing lease agreements. Research through TexNet and CISR is funded and ongoing.

15 Thank You!!