KMS Technologies – KJT Enterprises Inc.

Zerilli, A.

Integrated imaging adds value to complex structures exploration

2002

Presentation

Society of Exploration Geophysicists, Annual Meeting, Salt Lake City, Invited paper in

workshop “Recent Advances and Road ahead session”

Integrated imagingadds values to complex structures exploration

Andrea ZerilliKMS Technologies

Houston, TX, USAwww.kmstechnologies.com

SEG/Salt Lake City 2002

Outline:Setting the sceneIntegrated imaging – Why ? Non-seismic technologiesSeismic imaging improved What’s next ?

Key subjects:

• Integrated depth imaging• Tackling the near-surface complexity • Enhance seismic imaging in severe

topography & complex structures

SATB petroleum province

SSW NNESouthern Apennines Thrust Belt

SATB complexity

Complex near-surface Rough topography

M. di Viggiano

Survey line

Location map

2 km

M. di ViggianoM. Enoc

Agri ValleyMonticello

M. Caldarosa

Survey Line

TRAMUTOLA

MONTICELLO AGRI RIVER AGRI VALLEY ALLI RIVER

Noisy seismic

M. ENOC M. CALDAROSAVIGGIANO

MONTICELLO M. ENOC

PoSDM

MONTICELLO M. ENOC

PSDM

Seismic depth imaging

Integrated imaging – Why ?

• Integrate seismic with alternative geophysical techniques to build the most accurate near sub-surface model characterized by a high level of spatial resolution at low cost

• Exploit recent breakthroughs in non-seismic technologies

• Enhance depth imaging & reduce risk

Magnetic sensor

LAN

Frequency range:

24 kHz to 0.001 Hz

Dipole length: 50 m

Ey1

Ex1

Ey2

Ex2

FAM4

BF-6orBF-4

BF-6 or BF-4

Hx1

Hy1

Ex3

Ey3

Ex4

Ey4 Ey5

Ex5

Ey7

Ex7Ex6

Ey6

BF-6orBF-4

BF-6 or BF-4

Hx2

Hy2

Ey8

Ex8

Ey9

Ex9

GPS

FAM2 FAM3 FAM5

LAPTOP

FAM1 FAM6 FAM7 FAM8 FAM10 FAM11

CSU

BF-6 or BF-7

FAM9

BF-6 or BF-7

Non-seismic technologies

High res MT continuous profiling

High res MT continuous profiling

High Res MT data

Top Apula

Top Apula

Lower

Miocene

Lagonegro UnitApennine Platform

Depth to Apula poorly resolved

AA CC C1C1BB DD

1 km

High Res MT depth imaging

Thrust base

High resistivity – High velocity

High Res MT imaging vs geology

Top Apula

Top Apula

Lower

Miocene

Lagonegro UnitApennine Platform

Depth to Apula poorly resolved

AA CC C1C1BB DD

DC resistivity imaging

• Distributed electrode system

• Schlumberger & Wenner arrays

• Unit electrode spacing = 6-12 m

• Section length = 1.2-2.4 km

• Interpreted depth down to 100 m

Non-seismic technologies

0 250 m

High resistivity – High velocity

Fault

1209

1208

DC resistivity imaging

DC resistivity imaging & SP response

70Hz - 44m

38Hz - 26m

44Hz - 56m

72Hz - 29m

Optimized source placement

Optimised SP (clay)

Not Optimised SP (lithology independent)

DC resistivity & HRMT imaging

High resistivity – High velocity

Carbonate outcrop

DC resistivity & HRMT imaging

Seismic refraction & HRMT imaging

400 m

Seismic refraction & HRMT imaging

Agri Valley

MONTICELLO M. ENOC

P-wave tomography

0

1000

2000

3000

Top Apula

Top Apula

Lower

Miocene

Lagonegro UnitApennine Platform

Depth to Apula poorly resolved

AA CC C1C1BB DD

HRMT - seismic refraction synergy

Top Apula

Top Apula

Lower

Miocene

Lagonegro UnitApennine Platform

Depth to Apula poorly resolved

AA CC C1C1BB DD

MONTICELLO M. ENOC

Enhanced seismic depth imaging

Top Apula

Top Apula

Lower

Miocene

Lagonegro UnitApennine Platform

Depth to Apula poorly resolved

AA CC C1C1BB DD

Enhanced seismic depth imaging

What’s next ?

Increase data volume & productivityProgress joint imaging technology for PSDM updating Progress mapping from resistivity to seismicTackle 3D joint imaging on cost effective clustersDeliver commercial solutions

Joint seismic - MT depth imaging

High velocity – High resistivity100 Ωm

High velocity – High resistivity

Low velocity – Low resistivity5 Ωm

Carbonate Reservoir

Clastics

Thrust

Reference model

Seismic refraction imaging

? ? ? ?

? ? ? ?

MT Site spacing = 300 m

MT depth imaging

Joint

MT only

Acknowledgments

ESIT projectEni-AgipEnterprise Oil ItalianaYuri Roslov

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