What are the main extraction methods for shale gas and shale oil?

Question

BlackTom AI · Accepted Answer

The question asks to identify the main extraction methods for shale gas and shale oil.
Option a: 'a. Hydraulic fracturing' is correct because hydraulic fracturing (fracking) involves injecting fluid at high pressure to fracture rock formations, creating pathways for shale gas and oil to flow to the wellbore. This method is widely used in combination with horizontal drilling to access tight shale plays.
Option b: 'b. Thermal cracking' is not a primary extraction method for shale gas or shale oil. Thermal cracking is a refining process that breaks down large hydrocarbons into smaller ones, not a method for extracting hydrocarbons from shale formations.
Option c: 'c. Hydraulic pressing' does not correspond to any standard shale development technique. The term seems mistaken or conflates unrelated mechanical processes; it does not describe how shale resources are liberated from the rock.
Option d: 'd. Hydrogenation' is a chemical reaction used to saturate hydrocarbons or modify compounds, typically in refining or chemical synthesis, not a method to extract shale gas or shale oil from the reservoir.
In summary, the central extraction approach for shale resources is hydraulic fracturing (often paired with horizontal drilling); the other options describe processes or terms not used for shale resource extraction.

BH50A0220 Energy Systems - Contact teaching 6.1.2025-20.4.2025 Practice 2 - Homework (deadline 24.01.2024)

What are the main extraction methods for shale gas and shale oil?

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