What is a petroleum system?
A petroleum system encompasses a pod of active source rock and all genetically related oil and gas accumulations. It includes all the geologic elements and processes that are essential if an oil and gas accumulation is to exist.
What are the petroleum system elements?
The petroleum system concepts links accumulations of hydrocarbons to a source rock, thus placing emphasis on the origin of the hydrocarbons. The elements of a petroleum system include a source rock, reservoir, trap and seal. Geological processes involved are trap formation and generation-migration-accumulation.
What is total petroleum system?
In this U.S. Geological Survey World Petroleum Assessment 2000, the total petroleum system (TPS) is used to evaluate the undiscovered oil and gas resources that have the potential to be added within the next 30 years to reserves in the world, exclusive of the United States.
What is petroleum system chart?
A petroleum system events chart shows time on one axis and the essential elements and processes on the other. The time required for the generation-migration-accumulation process is the same as the age of the system. The chart also shows the preservation time and critical moment for the system.
How petroleum system is formed?
The Petroleum System consists of a mature source rock, migration pathway,reservoir rock, trap and seal. Appropriate relative timing of formation of these elements and the processes of generation, migration and accumulation are necessary for hydrocarbons to accumulate and be preserved.
How do you name a petroleum system?
The name of a petroleum system contains several parts that name the hydrocarbon fluid system:
- The source rock in the pod of active source rock.
- The name of the reservoir rock that contains the largest volume of in-place petroleum.
- The symbol expressing the level of certainty.
What are the 5 main elements of the petroleum play?
What is hydrocarbon system?
A hydrocarbon system consists of two to six elements depending on what type of oil or gas resource you’re searching for. You’ve probably already recognized that in either case the source rock must be one of these. The source rock in this figure is this purple layer that you see.
What is a seal in petroleum system?
1. n. [Geology] A relatively impermeable rock, commonly shale, anhydrite or salt, that forms a barrier or cap above and around reservoir rock such that fluids cannot migrate beyond the reservoir. A seal is a critical component of a complete petroleum system.
What is petroleum Systems & Elements of petroleum?
What is the difference between trap and seal?
tl;dr The seal is the rock layer above that will not allow passage of the hydrocarbons from below. The trap is the configuration of the reservoir, the seal and other geologic features that prevent the hydrocarbons from migrating around the seal.
What are the main components of petroleum system?
Petroleum System Summary •Source (Material and Rocks) •Generation (Maturation) •Migration •Trap •Reservoir Source Material Non-Biogenic Origins Biogenic (Kerogen) – Host rock (Shales and Coals) Kerogen Types Type I – Algal (oil prone) sapropelic
What are the processes of petroleum industry?
Petroleum System Processes 2480 120° F Generation 350° F Migration Seal Rock Reservoir Rock Reservoir Oil Water Gas Cap Gas AccumulationEntrapmentEntrapment Source Rock Schematic Migrational Pathways From Basin to Shelf
What is a petroleum system study?
Because a petroleum system study describes both ele- ments and processes, we can use them as look-alike and work-alike analogs. Petroleum systems also can be classified in different ways according to our needs—an example of applying a petroleum system classification scheme to petroleum exploration.
What is the geographic extent of the petroleum system?
The geographic extentis the area over which the petroleum system is known to occur. It is defined in map view by a line on the earth’s surface that circumscribes the pod of active source rock as well as all the known petroleum shows, seeps, and accumulations that originated from that pod.