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- W2321993627 abstract "Main inputs for synthetic gather generation include: the wavelet, density, compressional-DT and shear-DT logs. The synthetic trace generated for the well location is then correlated with real seismic data. At this stage various problems arise that are usually attributed to defects in the seismic information: incorrect surface corrections, errors in time-depth conversion, sparse data, and various processing artifacts. Often, the problems with seismic ties are reverted back to the log information itself. This paper shows that log data can be a significant source of error when improperly managed. Most problems belong to: i) bad logs ii) insufficient data usually supplemented by linear interpolations. In both cases, density and Pwave irregularities, as well as the artificial contrast between the linear segment and the 'real' data, can give rise to fabricated seismic reflections. Conversely, sharp contrasts in real formation properties can be blurred in logs due to adverse hole conditions. In both cases, log substitution of data objectively identified as bad improves the well-seismic similarities. Both editions and substitutions should be based in sound log interpretations and rock physics, rather than statistical estimations per se. An example and practical solutions in a well from North America are shown." @default.
- W2321993627 created "2016-06-24" @default.
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- W2321993627 date "2010-01-01" @default.
- W2321993627 modified "2023-09-27" @default.
- W2321993627 title "Improved Synthetic Seismic Ties after Log Analysis – Case Study in North America" @default.
- W2321993627 doi "https://doi.org/10.3997/2214-4609.201400787" @default.
- W2321993627 hasPublicationYear "2010" @default.
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