Notes

Slide Show

Outline

1	Least-squares Joint Imaging of Multiples and Primaries Morgan Brown PhD Defense 12 May 2004
2	Reflection seismic imaging
3	Reflection seismic imaging
4	Reflection seismic imaging
5	What about multiple reflections?
6	What about multiple reflections?
7	What about multiple reflections?
8	…but, are multiples all bad?
9	Primary image
10	WB pegleg image
11	Prestack image gathers
12	Prestack image gathers
13	Prestack image gathers
14	Multiples = useful signal
15	Joint Imaging: tantalizing prospect?
16	Talk Outline
17	Talk Outline
18	LSJIMP Forward Model
19	LSJIMP Forward Model
20	LSJIMP Forward Model
21	LSJIMP Forward Model
22	LSJIMP Forward Model
23	LSJIMP Forward Model
24	LSJIMP Forward Model
25	LSJIMP Forward Model
26	LSJIMP Forward Model
27	LSJIMP Forward Model
28	LSJIMP Forward Model
29	LSJIMP Forward Model
30	LSJIMP Forward Model
31	LSJIMP Forward Model
32	LSJIMP Forward Model
33	LSJIMP Forward Model
34	LSJIMP Inversion
35	LSJIMP Inversion
36	LSJIMP Inversion
37	LSJIMP Inversion
38	LSJIMP Inversion
39	Overcoming Crosstalk
40	Overcoming Crosstalk
41	Regularization 1: x/f differencing
42	Regularization 1: x/f differencing
43	Regularization 2: image differencing
44	Regularization 2: image differencing
45	Regularization 3: crosstalk weights
46	Regularization 3: crosstalk weights
47	Regularization 3: crosstalk weights
48	Regularization 3: crosstalk weights
49	Talk Outline
50	How to image split peglegs?
51	How to image split peglegs?
52	How to image split peglegs?
53	How to image split peglegs?
54	How to image split peglegs?
55	How to image split peglegs?
56	LSJIMP Forward Model
57	LSJIMP Forward Model
58	Talk Outline
59	Mississippi Canyon dataset
60	Computational highlights
61	Raw data Stack
62	Raw data Stack (3.5-5.5 sec)
63	LSJIMP Primaries (m₀) stack
64	LSJIMP Primaries (m₀) stack
65	Difference Stack
66	LSJIMP image gather results
67	LSJIMP sediment image gather
68	LSJIMP subsalt image gather
69	Least-squares Radon Demultiple
70	Talk Outline
71	CGG Green Canyon IV 3-D data
72	Wide-tow marine acquisition
73	Wide-tow marine acquisition
74	Wide-tow marine acquisition
75	Wide-tow marine acquisition
76	Talk Outline
77	CGG Green Canyon IV 3-D data
78	GC 3-D stacked results
79
80	Least-squares Radon Demultiple
81
82
83	Summary and Conclusions
84	Summary and Conclusions (2)
85	Future
86	Acknowledgements
87	Most Importantly…