skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Timing control improves seabed survey data quality

Abstract

Seateam has completed development of and field-proven the Dolphin data acquisition and timing system for high-density surveys offshore. The Dolphin project was initiated to improve quality control of survey sensor data and ensure time synchronization, thus leading to faster turnaround of seabed terrain information. Data received from survey sensors is asynchronous, so the system must provide for data correlation. This includes establishment of data latency, i.e., the time difference between data creation and timing of the message at first-byte arrival at the recording system. Until recently, asynchronous data from multiple sensors was collected by a single computer, regardless of whether it had additional intelligent or non-intelligent serial cards. This computer was fully responsible for time stamping all incoming data, plus associated storage and distribution. Though this initially sufficed and is still applicable to low-density data, increasingly larger data volumes required an associated boost in the capability to time stamp data prior to eventual correction.

Authors:
 [1]
  1. Seateam, Den Helder (Netherlands)
Publication Date:
OSTI Identifier:
242233
Resource Type:
Journal Article
Journal Name:
World Oil
Additional Journal Information:
Journal Volume: 217; Journal Issue: 4; Other Information: PBD: Apr 1996
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 02 PETROLEUM; 03 NATURAL GAS; SEA BED; SEISMIC SURVEYS; DATA ACQUISITION SYSTEMS; PERFORMANCE; DESIGN; OFFSHORE SITES; PETROLEUM INDUSTRY

Citation Formats

Green, R. Timing control improves seabed survey data quality. United States: N. p., 1996. Web.
Green, R. Timing control improves seabed survey data quality. United States.
Green, R. 1996. "Timing control improves seabed survey data quality". United States.
@article{osti_242233,
title = {Timing control improves seabed survey data quality},
author = {Green, R},
abstractNote = {Seateam has completed development of and field-proven the Dolphin data acquisition and timing system for high-density surveys offshore. The Dolphin project was initiated to improve quality control of survey sensor data and ensure time synchronization, thus leading to faster turnaround of seabed terrain information. Data received from survey sensors is asynchronous, so the system must provide for data correlation. This includes establishment of data latency, i.e., the time difference between data creation and timing of the message at first-byte arrival at the recording system. Until recently, asynchronous data from multiple sensors was collected by a single computer, regardless of whether it had additional intelligent or non-intelligent serial cards. This computer was fully responsible for time stamping all incoming data, plus associated storage and distribution. Though this initially sufficed and is still applicable to low-density data, increasingly larger data volumes required an associated boost in the capability to time stamp data prior to eventual correction.},
doi = {},
url = {https://www.osti.gov/biblio/242233}, journal = {World Oil},
number = 4,
volume = 217,
place = {United States},
year = {Mon Apr 01 00:00:00 EST 1996},
month = {Mon Apr 01 00:00:00 EST 1996}
}