Adequately Constructed Time

ACTeQ has developed a new and powerful metric for the quality control of irregular geometries such as compressive sensing.

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Adequately Constructed Time

Advancing Survey Design

Over the last 5 years, ACTeQ has gained considerable experience in dealing with complex, irregular survey geometries created by environmental and operational challenges and powerful emerging processing technologies such as Full Waveform Inversion (FWI) and Compressive Sensing (CS). The traditional metrics of minimum offset and fold are not adequate to assess the likely outcome of imaging workflows involving 5D interpolation. Mutual Coherence (MC) has addressed this challenge to some extent, but MC considers the source and receiver reconstructions independantly and can produce ambiguos results.

For these reasons, ACTeQ has developed a new survey design metric:

Adequately Constructed Time (ACT)

ACT is the time at which adequate sampling of the Fresnel zone is achieved and 5D reconstruction is possible.

ACT is Unambiguous

The image shown is taken from a project in Oman. This desert area is characterized by high, steep sand dunes. Exclusion zones were created to keep personnel and vehicles at a safe distance from high slope areas. Compressive sensing was used to minimize acquisition cost. The ACT map shown here demonstrates the impact of the irregular geometry on the ability to create a shallow image, and highlights areas where additional restricted source or receiver operations may be required.

ACTeQ believes that ACT is a useful metric allowing comparison of competing survey designs. ACTeQ is please to share all technical details. Please contact Brandon Mattox now for technical details of ACT or to discuss how ACT can be used on your next 3D project.

TESTIMONIALS

Client Feedback

“Tesseract has proved itself very versatile for our use, especially in the planning/design stage when we are looking at a multitude of options. You might have noticed that I have it open pretty much all the time !”

“Last week’s training was most enjoyable and I learned heaps. TesserACT is a well-thought-out piece of software and is very satisfying to use.”

"Really user friendly and easy to use. I was also amazed by your availability and your reactivity. TesserACT is the best alternative for us as of today, both on technical and economical aspects."

"Excellent work. It was a pleasure, too short, to work with you and the ACTeQ team."

"TesserACT is a great product and you guys have done well supporting the industry with new developments."

"Having used TesserACT since 2017 it has been a pleasure to see this software grow to where it is now and be a part of their journey. Credit to Damian Hite and Dave Ridyard and the team for what has been achieved. It provided us with the ability to design complex surveys, both OBN and streamer, with accuracy, providing our clients with the confidence to make decisions. Highly recommended."

Adequately Constructed Time

Adequately Constructed Time

Advancing Survey Design

For these reasons, ACTeQ has developed a new survey design metric:

Adequately Constructed Time (ACT)

ACT is the time at which adequate sampling of the Fresnel zone is achieved and 5D reconstruction is possible.

ACT is Unambiguous

TESTIMONIALS

Client Feedback

CLIENTELE

ACTeQ Partners & Clients

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