Page 170 - Acquisition and Processing of Marine Seismic Data

2.6 QC IN DATA ACQUISITION 161

a. Project information: Project and vessel name, information on the cumulative details of
study area, work day, contact name and daily, weekly, monthly and overall project
addresses, total survey area, total sail line production times in terms of mobilization/
of the survey in kilometers, estimated demobilization (mob/demob), production,
completion date of the survey, crossline stand-by and downtimes (Table 2.19), brute
coverage per sail line, basic acquisition
parameters such as shot interval, minimum
offset, number of streamers, streamer TABLE 2.19 Statistical Information About the Overall
separation, total array volume, Project Progress in Hours and in Percentage Prepared for
streamer length and depth, record length, Daily Reports
sampling rate, total number of recording
Today Cumulative
channels, etc.
b. Daily production details: A list of daily Hours % Hours %
completed or ongoing lines consisting of Mobilization 00.00 00.00 186.00 28.50
sequence number and line name(s), line Demobilization 00.00 00.00 00.00 00.00
direction, FSP (first shot point), LSP (last
Stand-by 00.00 00.00 140.40 21.50
shot point), TSP (total shot point along the
line), sail line length in kilometers, prime/ Downtime 02.45 11.46 16.20 2.50
infill/reshoot areas in square kilometers and Production-prime 04.30 18.76 216.10 33.10
total full fold (FF), daily production in
Production-infill 10.25 43.39 26.45 4.20
square kilometers (Table 2.18), remaining
prime lines in kilometers overall project Line change 06.20 26.39 66.25 10.20
progress in percentage and completed and Total 24.00 100.00 652.20 100.00
remaining works (Fig. 2.104), statistical

TABLE 2.18 Example List of Daily Production Details Prepared for Daily Activities Report

2 2 2
Seq. Line FSP LSP TSP Length (km) Infill (km ) Prime (km ) Total FF (km )
042 DEG16-1442P1042 1511 3261 1751 43.775 0 21.8875 21.8875
043 DEG16-1418P1043 1210 3423 2214 55.350 0 27.6750 27.6750
044 DEG16-1388F1044 3220 3907 688 17.200 8.60 0 8.6000
Total daily production 4653 116.325 8.60 49.5625 58.1625
FSP is first shot point, LSP is last shot point, TSP is total shot point along the line, and FF is full fold.

FIG. 2.104 Completed and remaining works prepared for daily reports. FF is full fold.