Data Loading in CE8 SAMPLE IMAGE. Simon Voisey June 2008 Hampson-Russell London Written for CE8R1

Transcription

1 Data Loading in CE8 SAMPLE IMAGE Simon Voisey June 2008 Hampson-Russell London Written for CE8R1

2 Introduction Data loading has been made much easier in CE8. The principles and locations of the buttons remain the same, however in the case of 2D data there is no need to formulate your own geometry. Data loading is rarely a fun task, so I hope this document makes life a little easier. 2

3 Sections Loading a post-stack 3D volume Loading a pre-stack 3D volume Loading multiple volumes into a single volume Loading a single 2D line Loading a single 2D line with a 3D Geometry Loading a random 2D line Loading multiple 2D lines Merged Volume Separate Volumes Group Volume Loading partial stacks as an angle gather SeisLoader (Including Header Editing)* Time-Lapse and Multi-Component Surveys *Please read through previous workflows, before starting Seisloader 3

4 Loading a post-stack 3D volume [1] [] Select your desired [1] volume. [3] [1] Navigate to correct location [2] [] Highlight g the volume [3] Press Add >> to place the volume into the selected files window [2] 4

5 Loading a post-stack 3D volume [2] [] Choose the 3D option 5

6 Loading a post-stack 3D volume [3] [] Set the parameters for your segy volume: [4] [1] In this example I have inline, xline, x and y coordinates in the headers. Therefore I toggle on yes for both. Use the Header Dump (highlighted in orange) to find this information. [2] Assign the bin locations to inline and xline [1] [3] Say yes to renumber the CDPs sequentially [4] The name of segy file shown [2] in your project, by default, will be the same name as segy file. [3] 6

7 Loading a post-stack 3D volume [4] [] [4] [1] [2] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through the trace headers, therefore you can make sure the numbers are sensible [4] Ignore receiver X and Y coordinates. We are dealing with post-stack data here. [3] 7

8 Loading a post-stack 3D volume [5] [] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. 8

9 Loading a post-stack 3D volume [6] [] [1] The final importation page shows the geometry of the segy file, after scanning. Please check the numbers are correct. This is fully interactive and you can alter the corner points [1]. See next slide. If the correct geometry parameters are shown, press OK [2] to bring the volume into your project [2] 9

10 Loading a post-stack 3D volume [7] [] [1] Editing Grid Corner Coordinates In the current software, the grid is based on inline and xline coordinates. Therefore if you do not have x and y coordinates in the headers, you can add them here [1] and the software will associate x and y values for each grid node. Please note the correct bin spacing [2] is essential. [2] 10

11 Loading a post-stack 3D volume [8] [] Resultant volume loaded in your project 11

12 Loading a pre-stack 3D volume [1] [] [1] [3] Select your desired volume. [1] Navigate to correct location [2] [] Highlight g the volume [3] Press Add >> to place the volume into the selected files window [2] 12

13 Loading a pre-stack 3D volume [2] [] Choose the 3D option 13

14 Loading a pre-stack 3D volume [3] [] Set the parameters for your segy volume: [4] [1] In this example I have inline, xline, x and y coordinates in the headers. Therefore I toggle on yes for both. Use the Header Dump (highlighted in orange) to find this information. [2] Assign the bin locations to inline and xline [1] [3] Say yes to renumber the CDPs sequentially [4] The name of segy file shown [2] in your project, by default, will be the same name as segy file. [3] 14

15 Loading a pre-stack 3D volume [4] [] [4] [1] [2] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through the trace headers, therefore you can make sure the numbers are sensible [4] Do not Ignore receiver X and Y coordinates. We are dealing with pre-stack data here. [3] 15

16 Loading a pre-stack 3D volume [5] [] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. 16

17 Loading a pre-stack 3D volume [6] [] [1] The final importation page shows the geometry of the segy file, after scanning. Please check the numbers are correct. This is fully interactive and you can alter the corner points [1]. See next slide. If the correct geometry parameters are shown, press OK [2] to bring the volume into your project [2] 17

18 Loading a pre-stack 3D volume [7] [] [1] Editing Grid Corner Coordinates In the current software, the grid is based on inline and xline coordinates. Therefore if you do not have x and y coordinates in the headers, you can add them here [1] and the software will associate x and y values for each grid node. Please note the correct bin spacing [2] is essential. [2] 18

19 Loading a pre-stack 3D volume [8] [] Resultant volume loaded in your project 19

20 Loading a pre-stack 3D volume [9] [] [1] To improve the display, go into Seismic view parameters menu (View -> Parameters), then go to the Annotations tab [1]. Finally, toggle on Offset. [2] 20

21 Loading a pre-stack 3D volume [10] The offset values are now marked, as shown 21

22 Loading a pre-stack 3D volume [11] A final QC of the data set is to check the coverage of the seismic. Open up a base map (View -> Base map), then select: View -> Show Fold, as illustrated, right. 22

23 Loading multiple volumes into a single volume [1] Sometimes volumes are divided into separate files. Therefore to carry out full analysis, they need to brought into the software as a single file. In this example I have a volume which has been divided into thirds, as shown below. Inlines 1 -> 20 Inlines 21 -> 40 Inlines 41 -> 56 23

24 Loading multiple volumes into a single volume [2] Select all divided files 24

25 Loading multiple volumes into a single volume [3] 1) Toggle on single volume 2) Enter an appropriate volume name for the merged volume [1] [2] 25

26 Loading multiple volumes into a single volume [4] [3] [1] [2] Set the seismic parameters accordingly [1]. In my example, I have both inline and xline as well as X and Y coordinates in the headers. Say yes [2] to renumbering CDP sequentially. Notice that the volume name is repeated [3]. This means all volumes will be brought in the same file. 26

27 Loading multiple volumes into a single volume [5] [1] [2] [3] 1) Enter the correct byte locations. 2) I have post-stack data, so I toggle on ignore receiver X and Y coordinates. 3) It is important you press Apply format to all files 4) Press Next to scan data [4] 27

28 Loading multiple volumes into a single volume [6] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. Do not reset. 28

29 Loading multiple volumes into a single volume [7] [2] [1] After the scanning is complete, the geometry of the full volume is displayed [1]. In addition the full number of inlines is listed [2] 29

30 Loading multiple volumes into a single volume [8] The resultant full volume 30

31 Loading multiple volumes into a single volume [9] By illustrating the fold on a base map (View -> Base map -> view -> show fold) you can see full coverage of the merged volume across the survey area 31

32 Loading a single 2D line [1] [1] [2] [3] Select your desired volumes. [1] Navigate to correct location [2] Highlight ht each volume [3] Press Add >> to place the selected volume into the selected files window. Do this until all volumes are in this window 32

33 Loading a single 2D line [2] 1) Choose the 2D line option o [1] 33

34 Loading a single 2D line [3] Set the parameters for your segy volume: [1] When the 2D line option is used, the software assumes x and y geometry. [2] Say no to renumber the CDPs sequentially [1] [2] 34

35 Loading a single 2D line [4] [4] [1] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through [2] the trace headers, therefore you can make sure the numbers are sensible [4] Ignore receiver X and Y coordinates. We are dealing with post-stack data here. [3] 35

36 Loading a single 2D line [5] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. Do not reset. 36

37 Loading a single 2D line [6] Using the 2D line option, the correct geometry will have been calculated. Press OK [1] to bring the new volume into the project. [1] 37

38 Loading a single 2D line [7] Result of importation process, base-map displayed in bottom right 38

39 2D Line as a Single Line 3D Volume: Introduction It is usually inconvenient and time consuming to load in 2D data as a Straight Line. HRS software was designed for 3D volumes and consequently if you can load in a 2D line as a 3D volume, most workflows will be much easier for you. Most 2D SEG-Y files can easily be imported as a single line 3D it only requires that you can identify one byte location in the Trace Header that is constant throughout the entire volume and use this to define the Inline. This workflow will provide you with a quick way to successfully importing your 2D data as single-line 3D volume. It assumes that the file has X and Y coordinates 39

40 Workflows: 2D Line as a Single Line 3D Volume [1] Select your 2D volume from its specific directory Once found, place the file into the selected files menu using the Add >> button or double clicking on the desired file. 40

41 Workflows: 2D Line as a Single Line 3D Volume [2] Select the volume type to be 3D. 41

42 Workflows: 2D Line as a Single Line 3D Volume [3] Which option you use for the primary key has little difference as long as you don t use by CDP coordinates Select Yes for having Inline, Xline, X and Y coordinates in your data set. This will become clear on the next page. Select No to renumber the CDPs sequentially 42

43 Workflows: 2D Line as a Single Line 3D Volume [4] Select a byte location that is constant for the inline byte location. This will generate a straight line. Use the trace header information found by clicking the Header Dump button. Have the Xline byte location the same as the CDP number. This will mean each trace is an Xline location along a straight line The X and Y coordinate byte locations are found using the Header Dump option 43

44 Workflows: 2D Line as a Single Line 3D Volume [5] When you click OK to this menu screen, you will be presented with this option. Click Yes for the software to scan your SEGY file and define the grid geometry 44

45 Workflows: 2D Line as a Single Line 3D Volume [6] The scan of the SEGY file will pick up the correct X and Y coordinates as well as setting the right orientation and bin spacing of the 2D line Click OK to import the 2D line in your project 45

46 Workflows: 2D Line as a Single Line 3D Volume [7] If you are having trouble correlating a well which is on, or very near the 2D line. Increase the spacing for the inline in order for the 2D grid to encompass the well. This problem is often associated with deviated wells. 46

47 Loading a random 2D line [1] [1] [2] [3] Select your desired volumes. [1] Navigate to correct location [2] Highlight ht each volume [3] Press Add >> to place the selected volume into the selected files window. Do this until all volumes are in this window 47

48 Loading a random 2D line [2] [1] 1) Choose the 2D line option 48

49 Loading a random 2D line [3] Set the parameters for your segy volume: [1] When the 2D line option is used, the software assumes x and y geometry. [2] Say no to renumber the CDPs sequentially [1] [2] 49

50 Loading a random 2D line [4] [4] [1] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through [2] the trace headers, therefore you can make sure the numbers are sensible [4] Ignore receiver X and Y coordinates. We are dealing with post-stack data here. [3] 50

51 Loading a random 2D line [5] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. Do not reset. 51

52 Loading a random 2D line [6] Using the 2D line option, the correct geometry will have been calculated. Press OK [1] to bring the new volume into the project. [1] 52

53 Loading a random 2D line [7] Result of importation process, base-map displayed in bottom right To get this display select: View -> Base map -> view -> show fold 53

54 Loading Multiple 2D lines In CE8 there are three new options to import multiple 2D lines Merged Volume All 2D lines will be brought into a single volume with a 3D geometry Separate Volumes Each volume will be imported as a single file. Group Volumes Similar to separate volumes, but the software will generate a super volume and place all the lines in the folder 54

55 Loading multiple 2D lines (Merged Volume) [1] [1] [2] [3] Select your desired volumes. [1] Navigate to correct location [2] Highlight ht each volume [3] Press Add >> to place the selected volume into the selected files window. Do this until all volumes are in this window 55

56 Loading multiple 2D lines (Merged Volume) [2] [1] [2] [2] 1) We choose the 3D option so that lines are placed into a 3D grid, when imported. 2) Select the merged volume option 3) Provide an appropriate name 56

57 Loading multiple 2D lines (Merged Volume) [3] [2] [1] Set Stthe parameters for your segy volume: [1] In this example I have inline, xline, x and y coordinates in the headers. Therefore I toggle on yes for both. Use the Header Dump (highlighted in orange) to find this information. [2] Assign the bin locations to inline and xline [3] Say no to renumber the CDPs sequentially [3] 57

58 Loading multiple 2D lines (Merged Volume) [4] [5] [4] [1] [2] [6] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through the trace headers, therefore you can make sure the numbers are sensible [4] Ignore receiver X and Y coordinates. We are dealing with post-stack data here. [5] If your 2D lines have varying byte locations, change between them from the indicated pulldown menu. Or press apply format to all files [6] if they are the same. [3] 58

59 Loading multiple 2D lines (Merged Volume) [5] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. Do not reset. 59

60 Loading multiple 2D lines (Merged Volume) [6] Using the merged volume option, the correct geometry will have been calculated. Press OK [1] to bring the merged volume into the project. [1] 60

61 Loading multiple 2D lines (Merged Volume) [7] [1] Line 1 Line 2 [2] The resultant import can only be viewed correctly in sequential mode [1]. However, looking at the lines on a base map [2] reveal correct plotting. Therefore operations can be conducted upon the lines, although the displaying of them is problematic. Therefore the group volume option is the preferred choice. To get this display select: View -> Base map -> view -> show fold 61

62 Loading multiple 2D lines (Separate Volume) [1] [1] [2] [3] Select your desired volumes. [1] Navigate to correct location [2] Highlight ht each volume [3] Press Add >> to place the selected volume into the selected files window. Do this until all volumes are in this window 62

63 Loading multiple 2D lines (Separate Volume) [2] [1] [2] 1) We choose 2D line because unlike the merged volume we want to display the lines individually. 2) Select the separate volume option 63

64 Loading multiple 2D lines (Separate Volume) [3] [1] Set the parameters for your segy volume: [1] When the 2D line option is used, the software assumes x and y geometry. [2] Say no to renumber the CDPs sequentially [2] 64

65 Loading multiple 2D lines (Separate Volume) [4] [3] [5] [4] [1] [2] [6] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through the trace headers, therefore you can make sure the numbers are sensible [4] Ignore receiver X and Y coordinates. We are dealing with post-stack data here. [5] If your 2D lines have varying byte locations, change between them from the indicated pull- down menu. Or press apply format to all files [6] if they are the same. 65

66 Loading multiple 2D lines (Separate Volume) [5] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. Do not reset. 66

67 Loading multiple 2D lines (Separate Volume) [6] Using the separate volume option, the correct geometry will have been calculated. Press OK [1] to bring the merged volume into the project. [1] 67

68 Loading multiple 2D lines (Separate Volume) [7] Image shows the 4 2D lines imported into the project Base-map showing the 2D lines To get this display select: View -> Base map -> view -> show fold 68

69 Loading multiple 2D lines (Separate Volume) [8] In Data explorer, you can see that the 4 lines have been successfully brought into the project. Double click on a given line to view it. 69

70 Loading multiple 2D lines (Grouped Volume) [1] [1] [2] [3] Select your desired volumes. [1] Navigate to correct location [2] Highlight each volume [3] Press Add >> to place the selected volume into the selected files window. Do this until all volumes are in this window 70

71 Loading multiple 2D lines (Grouped Volume) [2] [1] [2] [3] 1) We choose 2D line because unlike the merged volume we want to display the lines individually. 2) Select the separate volume option 3) Input an appropriate name 71

72 Loading multiple 2D lines (Grouped Volume) [3] [1] Set the parameters for your segy volume: [1] When the 2D line option is used, the software assumes x and y geometry. [2] Say no to renumber the CDPs sequentially [2] 72

73 Loading multiple 2D lines (Grouped Volume) [4] [5] [4] [1] [2] [6] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through the trace headers, therefore you can make sure the numbers are sensible [4] Ignore receiver X and Y coordinates. We are dealing with post-stack data here. [5] If your 2D lines have varying byte locations, change between them from the indicated pulldown menu. Or press apply format to all files [6] if they are the same. [3] 73

74 Loading multiple 2D lines (Grouped Volume) [5] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. Do not reset. 74

75 Loading multiple 2D lines (Grouped Volume) [6] Using the grouped volume option, the correct geometry will have been calculated. Press OK [1] to bring the merged volume into the project. [1] 75

76 Loading multiple 2D lines (Grouped Volume) [7] Note, that when the lines have been imported, there is the name of the group [1] and the [1] [2] line number [2]. To get this display select: View -> Base map -> view -> show fold Base-map 76

77 Loading multiple 2D lines (Grouped Volume) [8] Use Seismic View Parameters menu to swap between the lines, as shown left. 77

78 Loading multiple 2D lines (Grouped Volume) [8] [1] [2] In data explorer, you can see the 2D lines contained in their volume group [1] and listed separately. 78

79 Loading gpartial stacks as angle gathers [1] [1] Select your desired [1] volumes. [2] [2] [3] [3] [1] Navigate to correct location [2] [] Highlight g each volume [3] Press Add >> to place the selected volume into the selected files window. Do this until all volumes are in this window 79

80 Loading gpartial stacks as angle gathers [2] Choose the 3D option Toggle on merged volume 80

81 Loading gpartial stacks as angle gathers [3] [4] [5] [6] Set the parameters for your segy volume: [1] [1] In this example I have inline, xline, x and y coordinates in the headers. Therefore I toggle on yes for both. Use the Header Dump (highlighted in orange) to find this information. [2] Assign the bin locations to inline and xline [3] Say yes to renumber the CDPs sequentially [4] Input the same name for all volume so they are merged into a [2] single file [5] Change from post to pre-stack data, because our aim is bring the [3] data in as an angle gather. [6] Make Angle Gather as the volume type. 81

82 Loading gpartial stacks as angle gathers [4] [5] [4] [1] [2] [6] [1] Insert your byte locations [2] Use the Header Dump to find each of the byte locations [3] The slider pans through the trace headers, therefore you can make sure the numbers are sensible [4] Do not ignore receiver X and Y coordinates. We want to import the files as pre-stack data [5] If your 2D lines have varying byte locations, change between them from the indicated pull-down menu. Or press apply format to all files [6] if they are the same. [3] Hampson-Russell software requires the angle value to be stored in byte location 37. By using Seisloader a constant value can be added to this location. Please use link ----> 82

83 Loading gpartial stacks as angle gathers [5] Scanning the seismic is an important step. The software defines the location of the traces. If the operation is stopped, then no traces will appear. The time of the operation is dependent on the size of the data set. Please have patience on large (>25GB) volumes. Even if the progress bar becomes white, the software is still computing the information. 83

84 Loading gpartial stacks as angle gathers [6] [1] The final importation page shows the geometry of the segy file, after scanning. Please check the numbers are correct. This is fully interactive and you can alter the corner points [1]. See next slide. If the correct geometry parameters are shown, press OK [2] to bring the volume into your project [2] 84

85 Loading gpartial stacks as angle gathers [7] Result of importation process. Note that the near, mid and far traces have been placed into a single bin. 85

86 Loading gpartial stacks as angle gathers [8] [1] To improve the display, go into Seismic view parameters menu (View -> Parameters), then go to the Annotations tab [1]. Finally, toggle on Offset. [2] 86

87 SeisLoader [1] [] Seisloader is a new package which allows the importation of seismic data, without tying up a Hampson-Russell licence. Furthermore, it has been written for 64-bit machines The principles for importing various volumes are the same in SeisLoader, compared to other HRS packages, therefore please use the workflows in this document as a guide to bring in data. Access Seisloader from the GEOVIEW toolbar, as shown below: 87

88 SeisLoader [2] [] Initially the main window is blank, even if you are opening an existing project in SeisLoader. 88

89 SeisLoader [3] [] Select File -> Seismic to bring in volumes, either from file or volumes already in your project. In this example we want to import a segy file. In addition Seisworks or Openworks volumes are also accessable here 89

90 SeisLoader [4] [] Select the desired volume for importation 90

91 SeisLoader [5] [] In this example we are importing a 3D volume 91

92 SeisLoader [6] [] The file has inline, xline, X and Y coordinates, therefore parameters are toggled accordingly on this page 92

93 SeisLoader [7] [] The seismic formatting page is different to that of other packages. There is a great deal more functionality and the following pages illustrates each one in turn 93

94 SeisLoader [8] [] Trace Plot tab: Allows visual of seismic at a given trace location. Click on show value (as shown below) to see actual numbers 94

95 SeisLoader [9] [] Cross plot tab: Check for data consistency by crossploting two variables. Left shows what variables can be used. 95

96 SeisLoader [10] Crossplotting the same variable, such as CDP, is a good way to show that numbers increase at a constant rate. 96

97 SeisLoader [11] Line Plot Tab: Illustrates a given variable number at a given trace location. Move the slider to scan the data. The highlight square indicates its location 97

98 SeisLoader [12] The byte locations are now in a table format, which is different to other packages. Double click in a box to change numbers. 98

99 SeisLoader [13] The EBCDIC headers are fully editable. Change or add information. Double click on a given line and type. Press Header Editor to bi bring up this menu 99

100 SeisLoader [14] [1] [2] [3] [4] Editing trace headers. A constant value can be inputted into a given trace location. 1.Double click on desired byte location 2.If required, the action can be conducted to all traces, therefore toggle on the highlighted option. 3.Insert constant value. 4.In addition, a formula can be used which will then be applied to the traces 100

101 SeisLoader [14] Inserting Angle (i) [1] A near stack volume is being used for this example. Therefore click into byte location 37 [1], toggle on All Traces in file [2], enter 12 for the constant number [3] and finally press Save change(s) [4] [2] [3] [4] 101

102 SeisLoader [14] Inserting Angle (ii) [1] You first be asked if you want to make these changes, press yes [1]. Please note the actual segy file is altered. Afterwards, press the forward trace arrow [2] and you can see that the number is byte location 37 remains the same. [2] Byte location

103 SeisLoader [15] Line headers can be edited, just double click on the desired location and type, as highlighted 103

104 SeisLoader [16] Once the seismic has been given the correct format, press Next to scan the data 104

105 SeisLoader [17] The geometry page is exactly the same as other packages 105

106 SeisLoader [18] [3] [4] [1] [2] The well table menu [1] is again the same, however there is a unique seismic explorer window [2]. Simply press OK [3] on the well map table menu and navigate to the newly imported seismic volume [4] to bring into the viewer window (next slide) 106

107 SeisLoader [19] The resultant volume in the Seisloader viewer window 107

108 Time-Lapse and Multi-Component Surveys: Introduction Time-Lapse and Multi-Component surveys are similar in that you typically have two or more seismic volumes that need to have the same geometry in order that differences between the two datasets can be compared. Often, the seismic i files will need to be rebinned in order that t the geometry of all volumes matches exactly the base survey (or the PP survey for multi-component work). This process can easily be accomplished using the Survey Regrid option in Pro4D and ProMC software. Pro4D also offers the ability to group the surveys from different vintages into one group to allow for easy comparison. This grouping ability is available in the Data Explorer interface. ProMC has some slight differences when loading the SEG-Y files. In this case, care must be taken that the correct domain (PP, PS or SS domain) and the correct time domain (PP time, PS time or SS time) is entered. 108

109 Time Lapse Surveys: [1] The process for loading volumes into Pro4D is the typical 3D volume load except that you select the multiple files, you load them as Multiple Volumes (and not as a concatenated single volume). 109

110 Time Lapse Surveys: [2] After you have loaded the volumes, you typically have to apply the Survey Regrid option to ensure that all of the volumes have the same geometry. 110

111 Time Lapse Surveys: [3] 1) Data Explorer is contained in Data Manager -> Data Explorer in your main operations window. 2) Change the Data Type to: Seismic Volume 3) Create a New Volume Group and give it a name like Pro4D or something. 4) Drag-and-drop the rebinned volume files into the Volume Group. 5) You will then be asked to enter the alias for each volume. 6) Click Apply 111

112 Time Lapse Surveys: [4] In the new Volume Group, you will need to specify which volume is the Reference. The Reference volume is the base (preproduction) survey. All subsequent displays and time-lapse processes will have the base survey set accordingly. 112

113 Time-Lapse Surveys: [V] [] (1) Highlight the line you have just moved. (2) Select Actions -> Display The subsequent display will now have additional visual display parameters available at the bottom of the window. 113

114 Multi-Component Surveys: [I] [] The process for loading volumes into ProMC is the typical 3D volume load except that you select the multiple files, you load them as Multiple Volumes (and not as a concatenated single volume). 114

115 Multi-Component Surveys: [II] The critical factor in loading multi-component seismic is that the correct Data Domain and Category is set. The cells in the table contain Selection lists. Make sure that you select the correct ones for your datasets. After loading, you may still be required to regrid the data so that the two volumes have the same geometry. This option is available from the Survey Regrid button on the left-hand side menu. 115