1. Tracking buried ancient rivers with 3D Seismic
MOL Plc., Exploration and Production Division
Exploration projects, MOL
Tamás György Krusoczki and Marcell Lux
HC exploration geologists
ISZA 2013, Békéscsaba,

2. Contents of presentation
Some information about „Time Slice” on 3D seismic data cube
Practical examples from real world
„Alone” river
Time slices animation
Interpretation and Visualization(Surfer)
Incised Valley(4xGut)
Time slices
Cross section
Riverbed analysis
Animation
Amplitude analysis
Complex floodplain (Time slices animation)
Summary

3. „Time Slice(s)” What is this?
Source of picture: internet

4. TWT: 1176
1196 ms

5. TWT: 1172
1196 ms

6. TWT: 1166
1196 ms

7. TWT: 1162
1196 ms

8. TWT: 1158
1196 ms
4,75 km

9. TWT: 1154
1196 ms

10. TWT: 1150
1196 ms
237 m

11. TWT: 1146
1196 ms
332 m

12. TWT: 1142
1196 ms
475 m

13. TWT: 1138
1196 ms
715 m

14. TWT: 1134
1196 ms
950 m

15. TWT: 1132
1196 ms

16. TWT: 1128
1196 ms

17. TWT: 1124
1196 ms

18. TWT: 1120
1196 ms

19. TWT: 1116
1196 ms

20. Visualization Riverbed(1. Step)

21. Visualization Riverbed(1. Step)

22. Visualization Riverbed(2. Step)

23. Visualization Riverbed(2. Step)

24. Analogy
Source of picture: internet

25. Analogy
Source of picture: internet

26. TWT: 1076
1196 ms

27. TWT: 1072
1196 ms

28. TWT: 1068
1196 ms

29. TWT: 1064
1196 ms

30. TWT: 1060
1196 ms

31. TWT: 1056
1196 ms

32. TWT: 1052
1196 ms

33. TWT: 1048
1196 ms

34. TWT: 1044
1196 ms

35. TWT: 1040
1196 ms

36. TWT: 1036
1196 ms

37. TWT: 1032
1196 ms
1 km

38. TWT: 1028
1196 ms

39. TWT: 1024
1196 ms

40. TWT: 1020
1196 ms

41. TWT: 1016
1196 ms

42. Cross section (Incised Valley(s))
Riverbeds

43. Analogy
Source of picture: internet

44. Analogy
Source of picture: internet

45. Seismic Interpretation(By hand)
Source of picture: internet

46. Seismic Interpretation(By Comp.)
Source of picture: internet

47. 3D visualization

48. 3D visualization

49. TWT: 1340
1196 ms
6 km

50. TWT: 1344
1196 ms

51. TWT: 1348
1196 ms

52. TWT: 1352
1196 ms

53. TWT: 1356
1196 ms

54. TWT: 1360
1196 ms

55. TWT: 1364
1196 ms

56. TWT: 1368
1196 ms

57. TWT: 1372
1196 ms

58. TWT: 1376
1196 ms

59. TWT: 1380
1196 ms

60. TWT: 1384
1196 ms

61. TWT: 1388
1196 ms

62. TWT: 1392
1196 ms

63. TWT: 1396
1196 ms

64. TWT: 1400
1196 ms

65. TWT: 1404
1196 ms

66. TWT: 1408
1196 ms

67. TWT: 1412
1196 ms

68. TWT: 1416
1196 ms

69. TWT: 1420
1196 ms

70. TWT: 1424
1196 ms

71. TWT: 1428
1196 ms

72. TWT: 1432
1196 ms

73. Interpretation
Source of picture: internet

74. Interpretation
Source of picture: internet

75. Amplitude Analysis (Above 24ms, Below 0 ms)
Average Reflection Strength
Amplitude Analysis (Above 24ms, Below 0 ms)
Source of picture: internet

76. Amplitude Analysis (Above 24ms, Below 0 ms)
Maximum Trough Amplitude
Amplitude Analysis (Above 24ms, Below 0 ms)
Source of picture: internet

77. Amplitude Analysis (Above 24ms, Below 0 ms)
Average Instantaneous Phase
Amplitude Analysis (Above 24ms, Below 0 ms)

78. Amplitude Analysis (Above 24ms, Below 0 ms)
Average Instantaneous Phase
Amplitude Analysis (Above 24ms, Below 0 ms)

79. Amplitude Analysis (Above 24ms, Below 0 ms)
Average Instantaneous Phase
Amplitude Analysis (Above 24ms, Below 0 ms)

80. Why doesn’t it work? Because rivers of my presentation are Too thin
Too flat
No significant change of seismic wave velocity and density
Sand-sand instead of sand-clay formation
Seismic resolution
λ/4 resolution
Not constant, depend on vertical depth and velocity
We can do „blueing” to improve resolution
More finest seismic wave
Less „long” seismic wave

81. Source of picture: internet
TWT: 1196
1196 ms
Complex system

82. TWT: 1196
1196 ms

83. TWT: 1200
1196 ms

84. TWT: 1204
1196 ms

85. TWT: 1208
1196 ms

86. TWT: 1212
1196 ms

87. TWT: 1216
1196 ms

88. TWT: 1220
1196 ms

89. TWT: 1224
1196 ms

90. TWT: 1228
1196 ms

91. TWT: 1232
1196 ms

92. TWT: 1236
1196 ms

93. TWT: 1240
1196 ms

94. TWT: 1244
1196 ms

95. TWT: 1248
1196 ms

96. TWT: 1252
1196 ms

97. TWT: 1256
1196 ms

98. TWT: 1260
1196 ms

99. TWT: 1264
1196 ms

100. TWT: 1268
1196 ms

101. TWT: 1272
1196 ms

102. TWT: 1276
1196 ms

103. TWT: 1280
1196 ms

104. TWT: 1284
1196 ms

105. TWT: 1288
1196 ms

106. TWT: 1292
1196 ms

107. TWT: 1296
1196 ms

108. TWT: 1300
1196 ms

109. TWT: 1304
1196 ms

110. TWT: 1304
1196 ms

111. TWT: 1308
1196 ms

112. TWT: 1312
1196 ms

113. TWT: 1316
1196 ms

114. TWT: 1320
1196 ms

115. TWT: 1324
1196 ms

116. TWT: 1328
1196 ms

117. TWT: 1332
1196 ms

118. TWT: 1336
1196 ms

119. TWT: 1340
1196 ms

120. TWT: 1344
1196 ms

121. TWT: 1348
1196 ms

122. TWT: 1352
1196 ms

123. TWT: 1356
1196 ms

124. TWT: 1360
1196 ms

125. TWT: 1364
1196 ms

126. TWT: 1368
1196 ms

127. TWT: 1372
1196 ms

128. TWT: 1376
1196 ms

129. TWT: 1380
1196 ms

130. TWT: 1384
1196 ms

131. TWT: 1388
1196 ms

132. TWT: 1392
1196 ms

133. TWT: 1396
1196 ms

134. TWT: 1400
1196 ms

135. TWT: 1404
1196 ms

136. TWT: 1408
1196 ms

137. TWT: 1412
1196 ms

138. TWT: 1416
1196 ms

139. TWT: 1420
1196 ms

140. TWT: 1424
1196 ms

141. TWT: 1428
1196 ms

142. TWT: 1432
1196 ms

143. TWT: 1436
1196 ms

144. TWT: 1440
1196 ms

145. TWT: 1444
1196 ms

146. Summary Conception Time Slices & Imagination Seismic sections
Confidence
Amplitude analysis
Conception
Geology principals
Admiration

147. „Perfect” Example
Source of picture: Visualization of Horizon Attributes By Geoffrey A. Dorn

148. Thank You for Attention!
Source of picture: