Well-to-seismic tie

Autor: Rajeshwaran Dandapani, Jaap Van der Toorn, Grant Hanson, Zaheer Ali Shah, Jose Adauto de Souza, Hammad Hassan Tariq, Oleksandr Okprekyi, Gerardo Clemente Martínez, Matthijs van der Molen
Rok vydání: 2021
Předmět:
Zdroj: Applied Techniques to Integrated Oil and Gas Reservoir Characterization ISBN: 9780128172360
DOI: 10.1016/b978-0-12-817236-0.00009-1
Popis: When we have well data (logs) and seismic data, we can correlate the two data sets to know how the sands and shales in the well data relate to peaks and troughs on the seismic section. For example, if we have a well and the top of the sand is at a setting depth of 6350 m, on the seismic section/line, we will know where the well is placed and know what events (peak or trough) on the seismic correspond to the top of the sand that we see on the well log. The top of the sand in the well log could either be in feet or meters, while the seismic is in two-way travel time, either in milliseconds or seconds. Thus well-ties are where and when one compares seismic data at a well location with well log data from the well.
Databáze: OpenAIRE