Processing of KAUST Golf Data

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Presentation transcript:

Processing of KAUST Golf Data Liu Zhaolun and Libo Huang CSIM, KAUST 2015 Dec. 7

Outline Motivation Solution and Procedure Problems Results Discussion

Outline Motivation Solution and Procedure Problems Results Discussion

Motivation Practice getting real field data Practice data processing skills Find subsurface structure below KAUST Detect Qademah fault

Outline Motivation Solution and Procedure Problems Results Discussion

Solution and Procedure Collect seismic data at north KAUST campus Pre-processing Velocity analysis Post-stack migration Interpretation

Solution and Procedure North campus White: survey Red: Qademah? 240 shots 240 geophones 5 m spacing

Solution and Procedure Cut before early arrival Velocity Analysis Normal Moveout Correction Delete bad traces FK-Filter Remove Surface waves Stacking Bandpass FK-analysis Analysis

Outline Motivation Solution and Procedure Problems Results Discussion

Problems Bandpass fails to kill surface waves FK kills but no reflections FK asterisk artifacts

Problems Fail to find reflection

Problems Velocity analysis doesn’t work

Outline Motivation Solution and Procedure Problems Results Discussion

Results Normal moveout stacking

Outline Motivation Solution and Procedure Problems Results Discussion

Discussion One-side back scattering

Discussion First two back scatter (1)

Discussion First two back scatter (2)

Discussion First two back scatter (3)

Discussion First two back scatter (4)

Discussion Last two back scatter (1)

Discussion Last two back scatter (2)

Discussion Last two back scatter (3)

Discussion Last two back scatter (4)

Discussion Last two back scatter (5)