1 / 8

Petroleum Systems – basic components

Petroleum Systems – basic components. Source rock – originally a fine-grained sediment rich in organic matter (a few % or greater) Buried and heated – organic compounds break down, which yield hydrocarbons Increase in pressure forces fluid hydrocarbons out of source rocks (primary migration)

dcale
Download Presentation

Petroleum Systems – basic components

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Petroleum Systems – basic components • Source rock – originally a fine-grained sediment rich in organic matter (a few % or greater) • Buried and heated – organic compounds break down, which yield hydrocarbons • Increase in pressure forces fluid hydrocarbons out of source rocks (primary migration) • Buoyant hydrocarbons migrate upward along permeable pathways (secondary migration) • Hydrocarbons are trapped by an impermeable barrier permitting their accumulation within a reservoir

  2. Petroleum Systems

  3. OIL AND GAS EXPLORATION • Use of stratigraphic principles • Identify source beds (organic-rich mudrocks) • Oil and gas have low density, migrate along permeable pathways upwards until trapped

  4. OIL AND GAS EXPLORATION • Explore by: • Seismic stratigraphy – to identify potential traps and migration pathways • drill holes, but these only give local picture • well logging, measures physical characteristics, e.g. permeability, lithology, fluid type • See text figs 22.6, 22.7 • many wells = correlation

More Related