Posted on December 15, 2017
Below, please find a video with synced slides with an executive summary presentation with 2017 M-OSRP highlights, contributions and delivery with documented added value, impact and future plans.
In this video we provide a single comprehensive theory and starting point to derive all the various preprocessing and processing methods and algorithms within our program. The broader objective is to provide a simple and intuitive starting point and framework that accommodates both: (1) conventional and orthodox mainstream seismic processing methods and (2) the new thinking, concepts and the more capable and effective methods developed within M-OSRP to have a common framework and to have new seismic concepts become accessible and understood.
We begin by deriving wave-field separation and wave field prediction methods. Wave-field separation methods include e.g., predicting the source signature and radiation pattern, and de-ghosting and ground roll prediction and separation methods. Wave field prediction, derives both migration theory and the inverse scattering series; migration theory with needed subsurface information and the inverse scattering series able to achieve all seismic objectives directly and without subsurface information. All derived from one simple starting point and one logic train.
Preprocessing, ground roll removal without damaging reflection data, de-ghosting for offshore, onshore and OBC data with horizontal or variable acquisition topography,
Direct depth imaging either with or without a velocity model. For the former, imaging with a velocity model, we are providing the first migration method that is equally effective at all frequencies at the target, with an improved resolution and delineation of reservoirs compared to all current migration methods, and in particular all RTM methods. That improvement in resolution is quantified with comparisons using the same velocity model and bandwidth. The more rapidly varying and heterogeneous the overburden -the greater increased resolution is provided by the new Stolt extended C III migration resolution compared to RTM.
Multiple Removal Free surface and Internal multiple removal to surgically remove a multiple that interferes with other events, for example a target primary, without damaging the other event,
Non-linear direct amplitude analysis, and Q compensation without needing or estimating Q – input data that has experienced a dispersive absorptive earth and output traces that have experienced no absorption and dispersion, without knowing or estimating or needing to ever determine the absorptive dispersive mechanism, not before, during or after the processing,
A new opportunity from M-OSRP, to directly engage and cooperate with sponsor and non-sponsor oil and service companies to address a pressing and prioritized challenges on a given play with for example, a need to remove multiples that interfere with a target primary, or a need to improve seismic imaging reservoir resolution and identification, well beyond RTM. The algorithms that will be tested are only available from M-OSRP.
We end the video by wishing all our colleagues, sponsors and friends a Wonderful Winter Holiday Season and a Very Healthy, Joyful and Happy New Year,
The link to the 2017 M-OSRP Annual Technical Review videos with synced slides:
The SEG Abstracts submitted by M-OSRP: