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Seal capacity: pitfalls and limitations of estimation (view source)
Revision as of 15:39, 31 January 2014
, 15:39, 31 January 2014Initial import
{{publication
| image = exploring-for-oil-and-gas-traps.png
| width = 120px
| series = Treatise in Petroleum Geology
| title = Exploring for Oil and Gas Traps
| part = Predicting the occurrence of oil and gas traps
| chapter = Evaluating top and fault seal
| frompg = 10-1
| topg = 10-94
| author = Grant M. Skerlec
| link = http://archives.datapages.com/data/specpubs/beaumont/ch10/ch10.htm
| pdf =
| store = http://store.aapg.org/detail.aspx?id=545
| isbn = 0-89181-602-X
}}
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==
* [[Difficulty of characterizing p<sub>d</sub> of a seal]]
* [[Does the theory predict reality?]]
* [[Saturations required for hydrocarbon flow]]
* [[Seal capacity of breached and hydrocarbon-wet seals]]
* [[Hydrodynamic flow and pressure transients]]
==External links==
{{search}}
* [http://archives.datapages.com/data/specpubs/beaumont/ch10/ch10.htm Original content in Datapages]
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Evaluating top and fault seal]]
| image = exploring-for-oil-and-gas-traps.png
| width = 120px
| series = Treatise in Petroleum Geology
| title = Exploring for Oil and Gas Traps
| part = Predicting the occurrence of oil and gas traps
| chapter = Evaluating top and fault seal
| frompg = 10-1
| topg = 10-94
| author = Grant M. Skerlec
| link = http://archives.datapages.com/data/specpubs/beaumont/ch10/ch10.htm
| pdf =
| store = http://store.aapg.org/detail.aspx?id=545
| isbn = 0-89181-602-X
}}
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==
* [[Difficulty of characterizing p<sub>d</sub> of a seal]]
* [[Does the theory predict reality?]]
* [[Saturations required for hydrocarbon flow]]
* [[Seal capacity of breached and hydrocarbon-wet seals]]
* [[Hydrodynamic flow and pressure transients]]
==External links==
{{search}}
* [http://archives.datapages.com/data/specpubs/beaumont/ch10/ch10.htm Original content in Datapages]
* [http://store.aapg.org/detail.aspx?id=545 Find the book in the AAPG Store]
[[Category:Predicting the occurrence of oil and gas traps]]
[[Category:Evaluating top and fault seal]]