Upload
terradat-geophysics
View
215
Download
1
Embed Size (px)
DESCRIPTION
Building on TerraDat’s extensive seismic experience and utilising new 32-bit recorders and surface sensors, we are set up to monitor micro-seismic events before, during, and after drilling operations. The objective is to establish a robust baseline of data before resource development and subsequently deliver a constant monitoring service for geothermal and gas extraction prospects. The data are collected and sent real-time to the processing office where incident seismic events are assessed before any alerts are issued to the project stakeholders if preset thresholds are crossed.
Citation preview
Micro-Seismic Monitoring for Geothermal andShale gas DevelopmentsM
icro-Seism
icsAs the UK’s energy production moves towards sustainable, de-carbonised methods, energy producers are increasingly being attracted to exploration and exploitation of non-conventional energy resources. In the UK non-conventional, typically, refers to the extraction of shale gas and the generation of geo-thermal energy.
TerraDat’s expertise in these fields is twofold: not only can we assist with exploration and assessments of a particular resource thorough our conventional geophysical methodology, but we now offer a new, micro-seismic monitoring, service.
Building on TerraDat’s extensive seismic experience and utilising new 32-bit recorders and surface sensors, we are set up to monitor micro-seismic events before, during, and after drilling operations. The objective is to establish a robust baseline of data before resource development and subsequently deliver a constant monitoring service for geothermal and gas extraction prospects. The data are collected and sent real-time to the processing office where incident seismic events are assessed before any alerts are issued to the project stakeholders if preset thresholds are crossed.
Baseline Surveys
Micro-seismic Monitoring
3D data collection
Magnitude Measurements
Telemetric Connectivity
TechnicalNote
,
,
,
,
,
Sh
ea
r Wa
ve V
elo
city (m/s)
100
130
160
190
220
250
280
310
340
370
400
430
460
490
520
550
580
Incre
asin
g g
rou
nd
stiffne
ss
410m/s810m/s
810
95
100
105
110
Ele
vatio
n (
m)
0m 10m 20m 30m 40m
810m/s
2340m/sMASW S-Wave Model
P-wave velocity Model
Resistivity tomography section
20 25 30 35 40 45 50 55 60
Chainage (m)
285
290
295
Ele
vation
(m)
Inc
rea
sin
g r
es
isti
vit
y
Conductivetill
Resistivebedrock
SurfacePeat/Gravel
P-wave refraction - Layered velocity model
Seismic refraction survey setup
TerraDat (UK) Ltd - Tel (08707 303050)www.terradat.co.uk
*C
ost E
ffectiv
e
*N
on-in
vasiv
e
*R
apid
Gro
und C
overa
ge
*E
nviro
nm
enta
lly F
riendly
*S
wift M
obilis
atio
n/G
lobal C
overa
ge
Contact Simon Hughes for more info; [email protected]