Difference between revisions of "Trap spillage"
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Spillage occurs in one of three ways: | Spillage occurs in one of three ways: | ||
| − | * Changes in the | + | * Changes in the [[trap]]ping geometry |
| − | * Changes in the fluid contact due to hydrodynamics | + | * Changes in the fluid contact due to [[hydrodynamics]] |
| − | * Reduction in reservoir volume due to postaccumulation cementation | + | * Reduction in reservoir volume due to [[postaccumulation cementation]] |
| − | Petroleum loss across faults is considered spillage, not leakage, because faults are part of the trapping geometry. Petroleum shows in spilled accumulations are usually immobile at relatively constant residual saturation over a thick section of the reservoir, with a paleo-fluid contact located near the base of the residual saturation. Petroleum in structurally spilled accumulations is relatively unaltered; oil in hydrodynamically spilled accumulations, on the other hand, is usually altered. | + | Petroleum loss across faults is considered spillage, not leakage, because faults are part of the trapping geometry. Petroleum shows in spilled accumulations are usually immobile at relatively constant [[Overview of routine core analysis#Residual fluid saturation|residual saturation]] over a thick section of the reservoir, with a [[Fluid contacts|paleo-fluid contact]] located near the base of the residual saturation. Petroleum in structurally spilled accumulations is relatively unaltered; oil in hydrodynamically spilled accumulations, on the other hand, is usually altered. |
==See also== | ==See also== | ||
Revision as of 15:11, 25 April 2014
| Exploring for Oil and Gas Traps | |
| |
| Series | Treatise in Petroleum Geology |
|---|---|
| Part | Predicting the occurrence of oil and gas traps |
| Chapter | Predicting preservation and destruction of accumulations |
| Author | Alton A. Brown |
| Link | Web page |
| Store | AAPG Store |
Spillage occurs in one of three ways:
- Changes in the trapping geometry
- Changes in the fluid contact due to hydrodynamics
- Reduction in reservoir volume due to postaccumulation cementation
Petroleum loss across faults is considered spillage, not leakage, because faults are part of the trapping geometry. Petroleum shows in spilled accumulations are usually immobile at relatively constant residual saturation over a thick section of the reservoir, with a paleo-fluid contact located near the base of the residual saturation. Petroleum in structurally spilled accumulations is relatively unaltered; oil in hydrodynamically spilled accumulations, on the other hand, is usually altered.
See also
- Changes in trapping geometry
- Changes in hydrodynamic configuration
- Postaccumulation cementation
- Consequences of spillage
External links
| find literature about Trap spillage |
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