Page 177 - Acquisition and Processing of Marine Seismic Data

168 2. MARINE SEISMIC DATA ACQUISITION

TABLE 2.22 An Example List of Daily Operations Summary for First 10 Days of the Survey Prepared for the Final
Survey Report

Date Time Total Time Activities
18.08.2012 00:00-22:00 22:00 Mob-all cables/sources deployed
18.08.2012 22:00-24:00 02:00 Production-Test line seq.-01
19.08.2012 00:00-01:14 01:14 Downtime d/t air leaks
19.08.2012 01:14-24:00 01:14 Production- seq.-02-03
20.08.2012 00:00-24:00 24:00 Production- seq.-04-05-06
21.08.2012 00:00-24:00 24:00 Production- seq.-06-07
22.08.2012 00:00-16:12 16:12 Production- seq.-07
22.08.2012 16:12-24:00 08:48 Stand-by d/t bad weather
23.08.2012 00:00-10:40 00:40 Stand-by d/t bad weather
23.08.2012 10:40-14:45 04:05 Downtime d/t main engine fuel leakage
23.08.2012 14:45-24:00 09:15 Production- seq.-08-09
24.08.2012 00:00-24:00 24:00 Production- seq.-09-10-11
25.08.2012 00:00-24:00 24:00 Production- seq.-11-12-13
26.08.2012 00:00-24:00 24:00 Production- seq.-13-14
27.08.2012 00:00-13:10 13:10 Production- seq.-14-15
27.08.2012 13:10-21:25 08:15 Downtime d/t a failure section#15/streamer#4
27.08.2012 21:25-24:00 02:35 Production- infill seq.-15
28.08.2012 00:00-24:00 24:00 Production- seq.-16-17-18

on the standard safety instructions in the project HSE analysis and statistics of a seismic survey
HSE plan. are usually involved in the final survey report.
Safety drills and crew safety meetings are HSE reports typically involves the statistical
the crucial parts of the HSE plan and are per- information on the safety events occurred dur-
formed periodically. In addition, task-specific ing the survey period, such as crew change, bun-
meetings, termed toolbox meetings, are called kering, safety meetings, drills, etc. (Table 2.23),
just before the task, in which the task is statistical information on injuries (Table 2.24),
defined and possible hazards are identified. and the explanations of the incidents.
HSE reports also include total exposure hours
for the seismic crew onboard. HSE statistics 2.6.5.7 Final Deliverables
also have a cetacean log to evaluate the poten- Several deliverables are produced before,
tial impact of seismic operations on marine during and after the seismic survey. A mobiliza-
mammals and to take the necessary precau- tion report is prepared and submitted to the cli-
tions to minimize any effects on marine biolog- ent after a kick-off meeting to discuss the
ical life. technical details of the survey, and periodic