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Yes! If we talk about easiness and cost, then other methods are inexpensive. But what the reflection seismology tells us, the gravity data or magnetic data doesn't tell us. Seismic data tells us about the contrast of majority of the geological layers and our interest is to find oil and gas in such layers. Gravity data doesn't tell us about such minute contrasts. It can tell us the difference in gravitational attraction of two different rocks of significant density contrast e.g. 3.0 (hard rock) to 2.5 gm/cc (soft rock). It is very useful tool to conduct a reconnaissance surveys. Like to know the deep crustal rocks in the areas of exploration, to get information of deep magnetic anomalies and so on. Therefore, seismic data is more refined, much better resolution up to 20meters rather than in killo meters (gravity/magnetic) and a better 3D subsurface image.
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What two processes can affect the path of seismic waves?
reflection and refraction. I think
What are the principles of seismic stratigraphy?
Seismic stratigraphy is a geologic approach to the interpretation of seismic data, allowing their application based on physical stratigraphy. Primary seismic reflections parallel the surface and nonconforming surface of the strata.
What is the main purpose of stacking in seismic refraction and reflection method?
To reduce noise and improve overall data quality
What is a seismic crew?
Seismic crews create hundreds of small earthquakes using explosives and other energy sources. These vibrations are precisely measured by specialized equipment to compile a three-dimensional map of the sub-surface rock formations and petroleum reservoirs.
What is a G and G study in petroleum geology?
G & G stands for "Geological and Geophysical" and is a study of available surface geology and seismic, magnetic, gravity, log data usually with depths tied to existing wells.
Which geographical method is commonly applied in oil exploration?
reflection seismic technique
What has the author Terry R Bruns written?
Terry R. Bruns has written: 'Multichannel seismic-reflection profiles collected in 1978 in the eastern Gulf of Alaska' -- subject(s): Seismology, Seismic reflection method 'Petroleum geology and hydrocarbon plays of the Gulf of Alaska onshore province' -- subject(s): Petroleum
What is it called when a seismic wave bounces backward as it reaches a boundary?
Answer: When a seismic wave 'bounces backward' and reaches a boundary, it is called Reflection. Explanation: The seismic waves are the result of the landslides, earthquakes, volcanic eruptions, explosions by humans
What has the author M T Meyer written?
M. T. Meyer has written: 'Results of the application of seismic-reflection and electromagnetic techniques for near-surface hydrogeologic and environmental investigations at Fort Bragg, North Carolina' -- subject(s): Hydrogeology, Ground penetrating radar, Seismic reflection method, Seismic profiling, Deep continental structure, Geophysical profiling
How is seismic stratigraphy used to identify petroleum source rock?
facies analysiswith the help of facies analysis we can easily identify the petrolem source rock. for each llithology the seismic wave give different reflection pattern and in case presence of a fine grained rock it will give different reflection which is not similar to adjacent lithology because of facies changes.
What has the author Ralph B Tolson written?
Ralph B. Tolson has written: 'Multichannel seismic-reflection data from the southern Chukchi Sea' -- subject(s): Seismic prospecting, Seismic reflection method
What has the author P G McMahon written?
P. G. McMahon has written: 'Reflection seismic coverage of onshore and nearshore Nova Scotia, 1942-1987' -- subject(s): Nova Scotia, Seismic prospecting, Seismic reflection method
What is it called when a seismic wave bounces backward when it reaches its boundary?
Reflection
What is it called when seismic waves bounce backwards as it reaches a boundary?
Reflection
What is it called a seismic wave bounces backward as it reaches a boundary?
Reflection
How do you differentiate a reflection event from refraction event in a seismic record?
refraction event is a stright line and reflection is a hyperbolic event
How do petroleum workers use reading about the ocean floor from seismic devices?
because
