PESA NEWS MAGAZINE

Issue 172 of the PESA News Magazine is now available for member download here

Loading Events

« All Events

  • This event has passed.

PESA WA Sept Evening talk: Seismic imaging direct from field data – How Multi-parameter FWI can revolutionise timelines and turnarounds – A case study from the Barrow and Exmouth sub-basins

Thursday, 29 September, 2022 @ 5:00 pm - 7:30 pm (Australia/Perth time)

Free – $50.00

Guest Speaker(s): James McLeman

James McLeman graduated from Aberdeen University top of his class with a master’s degree in Physics in 2013. He then worked with CGG for five years, where he began his journey understanding seismic exploration and image processing technologies, with a special interest in extending the potential of full waveform inversion. In 2019, James joined DUG Technology and is currently a Senior Research Geophysicist focusing on utilizing FWI as a means to supersede many conventional processing technologies.

Hosted with thanks to our event sponsor DUG Technology

 

Seismic imaging direct from field data – How Multi-parameter FWI can revolutionise timelines and turnarounds – A case study from the Barrow and Exmouth sub-basins

James McLeman, DUG Technology

 

Technical Abstract

Do you wish you could get a high-resolution seismic image in a matter of weeks? Do you wish you could skip past all that processing testing and parameterisation that seems to go on forever? Now you can.

Traditional seismic processing workflows can be extremely time-consuming with many steps and sub-steps that all need to be testing and applied. Full waveform inversion (FWI) imaging is a least-squares approach that uses the raw field data to estimate many subsurface parameters, including reflectivity, ahead of a conventional processing workflow. Since it is using the primaries, multiples and ghosts during imaging, no pre-processing is required and the result is a set of higher resolution subsurface models but in a fraction of the time of a conventional processing workflow. This novel approach delivers superior results in a reduced turnaround leading to more efficient and effective decision-making.

In this presentation, we demonstrate an 85 Hz case study using the Duyfken 3D survey, located 115 km northwest of Barrow Island. We compare a conventional processing workflow and a novel FWI imaging technique that is simultaneously inverting for velocity and reflectivity. The FWI result was obtained in a few weeks, in contrast, the conventional flow took a number of months.

 

Thursday 29th September 5pm (for talk starting at 5.45pm)

** Note earlier start time than usual

Cost:

PESA Members:                                $25.00 (Members must Log on to the PESA website to see the member prices)

Non-members:                                 $50.00

PESA Students Members:               Free (registration is essential)

Bookings close 12 noon for venue and catering purposes.  

Details

Date:
Thursday, 29 September, 2022
Time:
5:00 pm - 7:30 pm
(Australia/Perth time)
Cost:
Free – $50.00
Event Categories:
  • Venue

    The George Hotel
    216 St Georges Terrace
    PERTH, Perth 6000
    + Google Map

    Registration Details

    Please select the number of tickets you wish to purchase and then press the "Get Tickets" button.

    Tickets

    The numbers below include tickets for this event already in your cart. Clicking "Get Tickets" will allow you to edit any existing attendee information as well as change ticket quantities.
    Tickets are no longer available