Como o petróleo é encontrado? Uma breve explicação sobre sísmica offshore

How Is Oil Found? A Brief Explanation Of Offshore Seismic

Written by Paulo Nogueira

Published on 26/09/2019 at 09:36

Updated on 26/09/2019 at 13:51

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Does Most of the Modern Brazilian Industry Use Fossil Fuels from Offshore Discoveries? But Do You Know the Technology to Find Oil and the Types of Operations Involved?

Seismic research consists of conducting an oceanographic ultrasound, performed through sound waves captured by seismic cables, with the aim of finding oil and gas reserves in the seabed.

The vessels used in this research are ships that carry a series of necessary research equipment, such as compressed air sources, which emit low-frequency sound waves that travel to the ocean floor and return to the surface, being captured by the ship’s seismic cables. These signals are interpreted and generate geophysical data that allow for the analysis of the seabed, thus identifying areas with the highest chances of containing oil and gas reserves. The seismic ship contains several storage locations (for seismic cables, compressed air bottles, and others), a hangar, workshops, a large operational area, and laboratories with different functions.

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Curiosity: Sharks Can Bite the Cable, Disrupting the Accurate Reading and Interpretation of Seismic Data

Second Officer of Navigation, Michel Ribeiro, reports something interesting, let’s put it in quotes so you can understand the account:

“Excellent work! I had the opportunity to work on a seismic ship from CCG ALIZE. These seismic cables have a very high economic value, millions of dollars each. We went out to make repairs on the birds, which are the depth controllers. The energy that passed through the cables caught the attention of sharks that would bite pieces off the cables, creating a reading failure at the specific location where they attacked. For me, it was a pleasure to have to change the birds, we would go by speedboat to make the swap. A truly wonderful experience!”

Source: Rafaela Bezerra, Technologist, Technician in Chemistry and Construction. Reference for technical details: Oceânica UFRJ.

How Is Oil Found? A Brief Explanation Of Offshore Seismic

Does Most of the Modern Brazilian Industry Use Fossil Fuels from Offshore Discoveries? But Do You Know the Technology to Find Oil and the Types of Operations Involved?

Curiosity: Sharks Can Bite the Cable, Disrupting the Accurate Reading and Interpretation of Seismic Data

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How Is Oil Found? A Brief Explanation Of Offshore Seismic

Does Most of the Modern Brazilian Industry Use Fossil Fuels from Offshore Discoveries? But Do You Know the Technology to Find Oil and the Types of Operations Involved?

Curiosity: Sharks Can Bite the Cable, Disrupting the Accurate Reading and Interpretation of Seismic Data

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China is building an artificial island in the middle of the sea, covering 20 km², to construct the largest offshore airport in the world, the Dalian Jinzhouwan. This $4.3 billion project is anchored on more than 3,000 pillars embedded in the rock beneath the ocean and is scheduled to open in 2035.

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