Shallow reservoir analogues:
This presentation is the property of its rightful owner.
Sponsored Links
1 / 26

Shallow reservoir analogues: Comparison of seismic and ground penetrating radar (GPR) imaging PowerPoint PPT Presentation


  • 108 Views
  • Uploaded on
  • Presentation posted in: General

Shallow reservoir analogues: Comparison of seismic and ground penetrating radar (GPR) imaging Roger Young Associate Professor of Geophysics OU. • GPR uses wavefield processing similar to seismic methods • My students have mostly been MS and/or undergraduates • Field projects,

Download Presentation

Shallow reservoir analogues: Comparison of seismic and ground penetrating radar (GPR) imaging

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Shallow reservoir analogues:

Comparison of

seismic and

ground penetrating radar (GPR)

imaging

Roger Young

Associate Professor of Geophysics

OU


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

•GPR uses wavefield processing similar to seismic methods

•My students have mostly been MS and/or undergraduates

• Field projects,

data reduction using commercial software

(mostly Ekko-Pro, SPW, ProMAX, Kingdom Suite)

•Early proponent of 3D GPR surveys


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Young, R.A., Deng, Z., Marfurt, K.J., Nissen, S.E, 1996, 3-D dip filtering and coherence appliedto GPR data: A study, The Leading Edge, 1011-1018.

Significance: Seismic attributes characterize fluvial-deltaic channels

on 3D GPR data


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

-Data available-

S

N

E

NW

SE

NW

SE

Correa-Correa, H., Young, R.A., Slatt, R.M., 2006, 3-D Characterization of a channel system in an outcrop reservoir analog derived from GPR and measured sections, Rattlesnake Ridge, Wyoming, SEG Expanded Abstract


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

-Results: Synthetic tie-

Significance: Interfaces identified on the measured sections can be correlated with GPR data through synthetic radargrams


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Significance: GoCAD used to interpolate horizons from a complicated fence diagram


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Young, R.A., Staggs, J.G., and Slatt, R.M., van Dam, R., 2007, Application of 1-D convolutional modeling to interpretation of GPR profiles –turbidite Sandstone 1, Lewis shale, Wyoming, JEEG, 12, 3, 241-254.

Significance: Convolutional modeling constrained by lab and outcrop measurements identifies GPR reflection events


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Ramirez, D. M., Young, R.A, 2007, Fracture orientation determination in sedimentary rocks using multicomponent GPR measurements, The Leading Edge, 1010-1016.


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Significance: Multicomponent/multi-azimuth GPR data senses fracture orientation in evaporites


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Geerdes, I., Young, R.A., 2007, Spectral decomposition of 3D GPR data from an alluvial environment, The Leading Edge, 1024-1030.

Significance: Spectral decomposition of GPR data

reveals tuning in a sand wedge


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Hoyos, J., Young, R.A., 2001, Near-surface, SH-wave surveys in unconsolidated, alluvial sediments, The Leading Edge, 936-948.


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Significance: SH-wave reflections are more useful than P-wave reflections


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

“Old” seismic equipment

OU Field Camp (1992-2006)


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Raw Data

Mute, AGC

75ms window for AGC 75

-6 dB for pre- rasterization gain

Example Early Muting and AGC on Line 3

Before NMO

After NMO

Example NMO Correction on Line 3 – SH-SH data


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

L1

Line locations of shear-wave surveys

at the Abbey.

L3

Tie between Line 3 and Line 1

3D View of horizons picked in the seismic grid from the Abbey.

Top and bottom of the Pierre Shale are the two shallowest horizons.


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

“New” seismic field equipment

2 24-Channel Geodes

48 channel (.52 m takeout spacing) cable

48 channel (4.0 m takeout spacing) cable

24 channel downhole hydrophone array

52 28-Hz vertical geophones

48 40-Hz vertical geophones

Through the Incorporated Research Institutions in Seismology (IRIS),

we could borrow NN additional channels of recording capability, IVI mini-vibrator

Significance: Potential to record vertical, radial, and transverse component data using “P”, “SV”, and “SH” sources and to jump from 2D to 3D


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Future work


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

  • •DMO and spectral decomposition enhancement of GPR CMP gathers

Nate Johnson, Senior thesis

CMP/CRP 167_2

CMP/CRP 103


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

  • •Seismic characterization of the

  • Arbuckle-Simpson aquifer

Breanne Kennedy, MS thesis (Devon support)

• 2D near-surface and exploration-scale seismic data from

Hunton anticline

• targets:

fractures, karst features, pC basement topography

  • •Rayleigh wave inversion for shear-wave

  • velocity structure (MASW)

Rika Burr, Senior thesis

  • •GPR/ERT characterization of the

  • Arbuckle-Simpson aquifer

Oswaldo Davogustto, MS thesis


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Common Source Gathers

Average Apparent Velocities

soil profile ~ 363 m/s

bedrock ~ 3046 m/s

direct arrival

refraction

reflection

Rayleigh waves


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Carlos Russian, MS thesis

  • •S/N enhancement on 3D seismic

  • cross-spread

  • F-K, K-L transform methods

  • •3D multicomponent study of seismic SV waves

  • record SV-waves on OU seismic system

  • SV impulsive source, radial component geophones

  • simple raypath geometry

  • strong event ??

  • compare to similar near-surface and exploration scale surveys


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

N/S shot gather

Apparent Velocity ~ 4733 m/s


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

SV-wave and P-wave high resolution seismic reflection using vertical impacting and vibrating sources

Andre Pugin

Susan Pullen

James Hunter

Geological Survey of Canada


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

1.1 Sec

2.2 Sec

3-Component Geophone

A Practical Approach to a 3D Multi-Component Seismic ProjectAlison Small (Parallel Petroleum Corp)J.W. (Tom) Thomas (Dawson Geophysical)Seth H. Conway (Dawson Geophysical)SEG 2007 presentation

P-Wave

S-Wave

Ri

Rx

P

Objectives:


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

Shot Station

1173-1176

Shot Line 1146

Receiver Line 6213

Receiver Line 6145

Shot Station

1212

Shot Line 1076

Shot Line 1006

Shot Station

1169-1196

hybrid

swath

2x2

Test Sourcing And Numbering

All have Rx and Ri

V

V

V


Shallow reservoir analogues comparison of seismic and ground penetrating radar gpr imaging

350 ms

700 ms

900 ms

Production “P” Migrated

750 ms

1400 ms

1800 ms

Production “Shear” Migrated


  • Login