This document discusses geotechnical seismic services, including 2D and 3D seismic acquisition. It outlines the objectives, preparation, planning, and parameter selection involved in 2D/3D seismic surveys. These include determining acquisition parameters, source and receiver layouts, and raw shot recording. The goals are regional exploration, prospect delineation, and field development.

1. GeotechnicalServices
Service Offerings
2D & 3D SEISMIC
AQUISITION

2. Reconnaissance Structural / Stratigraphic Anomalies
Primary Production/Pool Development Reservoir Delineation
Prospect Generation/Exploratory Well
4D Seismic/Pool Development
Detailed Seismic Acquisition/Processing
GeotechnicalServices

3. • OBJECTIVES
• PREPARATION & PLANNING
• PARAMETER SELECTION
• FIELD OPERATION
2D/3D SEISMIC SURVEY

4. • REGIONAL EXPLORATORY INVESTIGATIONS
• Delineation of structural and stratigraphic
anomalies
• PROSPECT DELINEATION
• To mark the depth of prospective horizon and
trap
• closures
• FIELDDEVELOPMENT
• To mark suitable locations for field
development and for reservoir studies
OBJECTIVESOBJECTIVES

5. PREPARATIONPREPARATION
AVAILABLE BUDGET & TIME
AVAILABLE DATA
Geological Data
Geophysical Data
Other Information

6. PLANNING& DESIGNING
PART OF OIL COMPANIES
1. ACQUISITION PARAMETERS
2. BID INVITATION
a. Minimum Offset b. Maximum Offset
c. Source Interval
e. No. of Channels
d. Receiver Interval
f. Fold Coverage
g. Source (Dynamite or Vibroseis)

7. RECEIVERANDSOURCE PARAMETERSELECTIONRECEIVERANDSOURCE PARAMETERSELECTION
• SPREAD TYPE
• RECEIVER LAYOUT
• SOURCE TYPE

8. DYNAMITEDYNAMITE
• SHOT HOLE DEPTH
• CHARGE SIZE
• SP INTERVAL
• NUMBER OF HOLES
• SHOT POINT BASE
• SOURCE ARRAY PATTERN
SP Interval
Hole Depth
Charge Size
PARAMETERS

9. RAW SHOT RECORDRAW SHOT RECORD
2D:

10. CABLE& GEOPHONE
LAUL Link cableGEOPHONE STRING ,
142 m

11. LAYOUT(FRONTCREW)

12. GeophonePlantation

13. CableLayout

14. RoadCrossing

15. LINE
SOURCE
RECEIVER

16. LINETABBOX
LAUX
BATTERY
TO RECORDER

17. RECORDER

18. CABLEPLUGIN THERECORDER
FROM SPREAD

19. Air Gun
MARINEMARINE
LANDLAND
Dynamite Vibroseis
SOURCE TYPESOURCE TYPE

20. VIBROSEISVIBROSEIS
• VP INTERVAL
• MOVE UP
• SWEEP
• SWEEP LENGTH
• SWEEP FREQUENCY
• SWEEP TYPES
• NUMBER OF SWEEPS PER
VP
• SOURCE ARRAY
PATTERN
PARAMETERS

21. CROSSVIBRATORS

22. CROSSLINESHOOTING
SEISMIC LINE
VIB PUSHER