Difference between revisions of "Seal capacity: pitfalls and limitations of estimation"
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+ | {{merge|Seal capacity}} | ||
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{{publication | {{publication | ||
| image = exploring-for-oil-and-gas-traps.png | | image = exploring-for-oil-and-gas-traps.png | ||
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| part = Predicting the occurrence of oil and gas traps | | part = Predicting the occurrence of oil and gas traps | ||
| chapter = Evaluating top and fault seal | | chapter = Evaluating top and fault seal | ||
− | | frompg = 10- | + | | frompg = 10-82 |
− | | topg = 10- | + | | topg = 10-82 |
| author = Grant M. Skerlec | | author = Grant M. Skerlec | ||
| link = http://archives.datapages.com/data/specpubs/beaumont/ch10/ch10.htm | | link = http://archives.datapages.com/data/specpubs/beaumont/ch10/ch10.htm | ||
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* Few empirical field studies compare the predicted and observed [[hydrocarbon column]] heights. This is worrisome because idealized laboratory experiments have significant errors in the predicted hydrocarbon column heights. | * Few empirical field studies compare the predicted and observed [[hydrocarbon column]] heights. This is worrisome because idealized laboratory experiments have significant errors in the predicted hydrocarbon column heights. | ||
* [[Saturations required for hydrocarbon flow|Hydrocarbon saturations required for flow]] through top seals—and, consequently, displacement pressures—may be much higher than commonly assumed. | * [[Saturations required for hydrocarbon flow|Hydrocarbon saturations required for flow]] through top seals—and, consequently, displacement pressures—may be much higher than commonly assumed. | ||
− | * Hydrocarbon columns beneath breached seals and hydrocarbon-wet seals may not be related to the capillary properties of the seal in any easily understood way. | + | * Hydrocarbon columns beneath breached seals and [[Seal capacity of breached and hydrocarbon-wet seals|hydrocarbon-wet seals]] may not be related to the capillary properties of the seal in any easily understood way. |
− | * Diffusion can cause loss of large volumes of gas but not oil through a top seal. | + | * [http://en.wikipedia.org/wiki/Diffusion Diffusion] can cause loss of large volumes of gas but not oil through a top seal. |
* Hydrodynamic flow can alter top seal capacity. | * Hydrodynamic flow can alter top seal capacity. | ||
==See also== | ==See also== | ||
− | * [[ | + | * [[Displacement pressure of a seal: difficulty of characterization]] |
− | * [[ | + | * [[Displacement pressure: does the theory predict reality?]] |
* [[Saturations required for hydrocarbon flow]] | * [[Saturations required for hydrocarbon flow]] | ||
* [[Seal capacity of breached and hydrocarbon-wet seals]] | * [[Seal capacity of breached and hydrocarbon-wet seals]] | ||
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[[Category:Predicting the occurrence of oil and gas traps]] | [[Category:Predicting the occurrence of oil and gas traps]] | ||
[[Category:Evaluating top and fault seal]] | [[Category:Evaluating top and fault seal]] | ||
+ | [[Category:Treatise Handbook 3]] |
Latest revision as of 20:57, 31 March 2022
It has been suggested that this article be merged with [[::Seal capacity|Seal capacity]]. (Discuss) |
Exploring for Oil and Gas Traps | |
Series | Treatise in Petroleum Geology |
---|---|
Part | Predicting the occurrence of oil and gas traps |
Chapter | Evaluating top and fault seal |
Author | Grant M. Skerlec |
Link | Web page |
Store | AAPG Store |
Although it is tantalizing to be able to measure the capillary properties of a seal and then assess hydrocarbon volumes, some practical problems exist:
- It is not easy to characterize the displacement pressure of a top seal from a few, or many, measurements.
- Few empirical field studies compare the predicted and observed hydrocarbon column heights. This is worrisome because idealized laboratory experiments have significant errors in the predicted hydrocarbon column heights.
- Hydrocarbon saturations required for flow through top seals—and, consequently, displacement pressures—may be much higher than commonly assumed.
- Hydrocarbon columns beneath breached seals and hydrocarbon-wet seals may not be related to the capillary properties of the seal in any easily understood way.
- Diffusion can cause loss of large volumes of gas but not oil through a top seal.
- Hydrodynamic flow can alter top seal capacity.
See also
- Displacement pressure of a seal: difficulty of characterization
- Displacement pressure: does the theory predict reality?
- Saturations required for hydrocarbon flow
- Seal capacity of breached and hydrocarbon-wet seals
- Hydrodynamic flow and pressure transients
- Top seal displacement pressure
- Diffusive seal leakage