PETROLEUM SEEP A petroleum seep is a natural occurrence where crude oil or natural gas escapes from the Earth’s subsurface and reaches the surface, either on land or in the ocean. This happens when underground reservoirs are over-pressured or when there are faults or fractures in the rock layers that allow hydrocarbons to migrate upwards. Quick facts: Petroleum seeps are often indicators of nearby oil and gas deposits. They can occur on land (as tar pits or oily ground) or under the sea (as oil

PETROLEUM FORMATION Petroleum, also called crude oil, is a naturally occurring hydrocarbon mixture formed from the remains of ancient plants and microscopic marine organisms. Its formation is a geological process that takes millions of years, involving biological, chemical, and physical changes under the Earth’s surface. STAGES OF PETROLEUM FORMATION 1. ACCUMULATION OF ORGANIC MATTER Petroleum originates mainly from plankton (tiny marine organisms) and plant remains. These organisms die and sett

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