When a geologist or geophysicist wants to interpret the geological setting of a sedimentary basin being studied on seismic, what he/she first observes is the nature and behavior of the reflections through the whole seismic survey, and how they interrelate.
From the sedimentological point of view, sedimentary reflections on seismic can tell us about the depositional environment and regimes, because they mainly represent bedding planes corresponding to conformable changes in these aspects, meaning that we can extract information on:
These two words represent what we know as a type of unconventional reservoirs which have revolutionized the traditional ways of finding, assessing and predicting the hydrocarbons production and their storage and flow mechanisms within the rocks.
We often hear about oil and gas, but it seldom crosses our mind that these two terms represent very complex characteristics and that we can classify the sources, reservoirs, and even the fluids and mechanisms of recovery, as unconventional or conventional.
Because of the high expenses the petroleum industry has to incur in order to find hydrocarbons, any tool that helps predicting what is underneath earth’s surface is very valuable and economically desirable, and reflection seismic has become a very widely used tool, which has been going through development and research, and its implementation is particularly important in exploration and evaluation on stages previous to any kind of drilling techniques application.
We are here today to tell you about The Rivers and what they can give you (ancient, of course).
This is the start of a story about a river that flowed many thousands of years ago, a river that dried and just led the rocks behind for you to have a giant supply of oil that would allow you to drive your car in the future.
Well, this is how we come to learn about the different tools used by people in the oil and gas industry in order to discover where the oil can be hidding… And the seismic surveys and their correct interpretation, have turned to be the most widely used and practical method to discover the different characteristics of the geology down there, as previous stage to get physically in the subsurface by drilling any kind of perforation or well.