Why perform audits?

The main reason to perform a technical audit on a seismic survey is to increase confidence in the dataset and how the data were acquired. This is a fundamental quality assurance process and adds to the commercial value of the data.

Companies can also ensure that they comply with their moral and legal obligations to conduct their work safely and in an environmentally acceptable manner.  This benefits all the stakeholders in a project.

Derek Campbell, Technical Director - Land Seismic

How do we audit?

We engage with the seismic contractor’s personnel collaboratively so that they understand the reasons for the audit and can improve their working practices for the future.  Our auditors are world-class experts who have years of experience and who are used to mentoring others.

On completion of an audit, the findings are discussed with the crew management and technical staff before the auditor departs.

What do we audit?

Technical Audit

This is an independent set of tests on the seismic recording system, energy sources and receivers, together with any ancillary equipment.  The audit is performed by a specialist electronic engineer, equipped with independent test equipment and software.

The aim is to ensure that all elements of the acquisition system are recording data within the equipment manufacturer’s specifications and the client’s contractual, technical standards.  It also enables the contractor’s personnel to understand better the testing and quality control procedures required of them.

Performing a technical audit ensures that the recorded seismic data have not been degraded by any system error during the acquisition sequence.

Geodetic Audit: A geodetic audit serves as a basic “health check” of the positioning aspects of a project before the survey commences. By identifying potential complications in advance, the client has the ability to adapt its plans and establish any necessary mitigation procedures before the survey start-up.

Ensuring geodetic parameters are consistent with existing legacy data is key to maintaining the geospatial integrity of an asset through the complete E&P life cycle.  If the initial audit uncovers more significant geodetic shortcomings, then we can provide a geodetic specialist to investigate further in order to rectify these errors.

HSE Audit: An HSE audit checks that satisfactory safety standards are in place to ensure no harm to people, equipment or the environment during the project.  It is designed to:

  • Review what is seen in the field against contractual requirements and published standards such as IOGP and IAGC.
  • Assess the contractor’s HSE management system for the effectiveness of the design and its implementation
  • Review known hazards in the field, the effectiveness of identifying new hazards, and the precautions taken to handle the risks

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