SEISMIC OPERATION

Seismic operation is one of exploration method which is used to detect hydro carbon reserve beneath earth prior to be exploited and produced

RISK
- Permit and legal aspects related with, MIGAS, Police, Military and local government
– Explosive use
– Large amount of manpower
– Clearing of new wildlife field (mostly forest)

3D SEISMIC OPERATION PHASES
1. PREPARATION PHASE
– Base camp & Fly camp set up
– Personnel recruitment and induction
– Explosive storage set up
– Permit and Legal aspects
2. OPERATION PHASE
– Topography survey
– Clearing and bridging
– Drilling
– Preloading
– Shooting and Recording
3. RECLAMATION & RECOVERY PHASE
– Excessive explosive handling
– Environment reclamation
– Damage claim payment

Personnel Recruitment & Induction
- certificate required for that special job, Good health

OPERATION PHASE
1. TOPOGRAPHY SURVEY
- conducted to determine seismic line and shoot point

2. Clearing & Bridging
- purposed to make roadway along seismic line as roads for drilling and recording crew

3. DRILLING
- Drilling operation in seismic is a shallow drilling operation, where about only 15 – 25 m depth and 15 cm in hole diameter

4. PRELOADING
- simultaneous with drilling activities

5. Shooting and Recording
- Shooting is activity to explode the explosives that have been planted
- While recording is activity to record sound wave from explosion by using sound recorder called geophone

RECLAMATION & RECOVERY PHASE
- Excessive explosive must be destroyed to ensure balance and improper usage by unauthorized person
- Environment Reclamation: Seismic activity cause natural damages
- Damage Claim Payment: Effects of shooting operation could be damage to the surrounding building caused by explosion