1 LEAST SQUARES DATUMING Yanwei Xue Sep. 18, 2009.

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Presentation transcript:

1 LEAST SQUARES DATUMING Yanwei Xue Sep. 18, 2009

2 OUTLINE  Theory  VSP->SWP. oOBS Data Example. oApplication on Target Oriented RTM.  VSP surface related multiples->SSP. oFlat 3 layer model example. oSEG/EAGE model Example.

3 Two state model

4 State 1State 2

5 State 1State 2

6 OUTLINE  Theory  VSP->SWP. oOBS Data Example. oApplication on Target Oriented RTM.  VSP surface related multiples->SSP. oFlat 3 layer model example. oSEG/EAGE model Example.

7

8 Input VSP Data G’s Function

9 S.I.D. Real

10 L.S.D. Real

11 OUTLINE  Theory  VSP->SWP. oOBS Data Example. oApplication on Target Oriented RTM.  VSP surface related multiples->SSP. oFlat 3 layer model example. oSEG/EAGE model Example.

12 VSPSRM->SSP

13 VSPSRM->SSP

14

15 Down-going waves (receiver side) Up-going waves (receiver side)

16 Down-going waves S.I.D Up-going waves S.I.D

17 Down-going waves L.S.D Up-going waves L.S.D

18 Real SSP

19 OUTLINE  Theory  VSP->SWP. oOBS Data Example. oApplication on Target Oriented RTM.  VSP surface related multiples->SSP. oFlat 3 layer model example. oSEG/EAGE model Example.

20

21 Down-going waves (receiver side) Up-going waves (receiver side)

22 Down-going waves S.I.D Up-going waves S.I.D

23 Down-going waves L.S.D Up-going waves L.S.D

24 Real SSP