Berks, Buck & Oxon Branch Meeting

'Multi-component Seismic Processing - A Brief Overview' With Richard Whitebread, (WesternGeco)

21st March 2019

Summary

The bar is open from 6:00pm, and the talk to commence at 7:30pm

Ocean bottom seismic offers a better measurement of compressional seismic wave field which should significantly reduce uncertainty with reservoir characterisation and time lapse monitoring.

Richard will review key elements of the data processing workflow to show how historically significant effects are being well resolved today. Some examples:

  • summation of optimally calibrated hydrophone and geophone sensor measurements has long yielded naturally broadband data on receiver side. Enabled by full waveform interpolation and high resolution 3D Radon transforms we now can suppress ghost and free surface multiple energy more effectively on the source side as well using deterministic or data adaptive approaches.
  • sea floor has typically been a quiet environment to place sensors but we need robust tools to remove all energy which could degrade final evaluation of reservoir properties. Shear energy leaking into geophone can be problematic along with seismic interference and simultaneous sources.
  • Internal multiple energy will not be suppressed by processes such as up/down deconvolution so we are seeing increased need to model and suppress this energy

He will tell this general story using case studies and synthetic data examples and  will make it relevant for all explorationist’s.

Richard Whitebread is an Area Geophysicist working in WesternGeco’s multi-component centre of excellence. Being hands on with several of the industry’s leading ocean bottom projects will hopefully yield some interesting insights to this growing yet mature field of seabed seismic data.

Venue Information

Venue information

Venue name:

The Three Tuns

Venue address:

5 Market Place, Henley-on-Thames, Oxfordshire, RG9 2AA, United Kingdom