Qbb 3053 - Practical Lab Test

The correct answer is 8. This suggests that there were 8 streamers used in the acquisition process.

The given answer is incorrect because the seismic header information does not provide amplitude anomalies of the seismic section. The header primarily provides information such as the location of the seismic survey, the number of streamers used, and the coordinate system used. Amplitude anomalies are typically analyzed and interpreted from the seismic data itself, not from the header information.

The UTM (Universal Transverse Mercator) system is used in this survey. UTM divides the Earth into 60 zones, each spanning 6 degrees of longitude. It provides a coordinate system that is widely used for mapping and surveying purposes, allowing accurate and consistent measurements to be made across different locations.

The seismic section is described as having zero phase, which means that the seismic waves are in perfect alignment with the source wavelet. This allows for easier interpretation of the seismic data. The polarity is described as American, which refers to the convention of representing positive amplitudes as upward deflections on a seismic trace. This is in contrast to European polarity, where positive amplitudes are represented as downward deflections.

A flat spot is a type of direct hydrocarbon indicator (DHI) that can be identified in seismic sections. It appears as a relatively horizontal, continuous reflection that is caused by the presence of a hydrocarbon accumulation. The flat spot occurs due to the contrast in acoustic impedance between the hydrocarbon-filled reservoir and the surrounding rock layers. This results in a distinct, flat reflection on the seismic data. The presence of a flat spot can indicate the potential presence of hydrocarbons and is often used as a target for exploration and drilling activities.

The correct answer is 480. This suggests that 480 geophones were used in the acquisition process.

The correct answer is "Data loading by assigning the correct byte location -> choose the correct UTM based on the seismic header -> realize the data to zgy format". This answer suggests that the process of importing seismic data from segy to zgy format involves loading the data by assigning the correct byte location, selecting the appropriate UTM (Universal Transverse Mercator) based on the seismic header, and then converting the data to the zgy format.