Changes

  | 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  = 10-1

  | frompg  = 10-3

  | topg    = 10-94

  | topg    = 10-3

  | 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

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

}}

}}

Sufficiently intense [[deformation]] in excess of top [[seal ductility]] can fracture a top seal. In addition, sufficiently high pore pressures in excess of the fracture pressure can induce [[Natural hydraulic fracturing of top seals|natural hydraulic fracturing]]. Both [[top seal]] and [[Fault seal behavior|fault seal]] are fundamental to prospect and play assessment as well as to production and field development. Despite our understanding of the variables that control [[seal]]s<ref name=ch10r19>Downey, M., W., 1984, [http://archives.datapages.com/data/bulletns/1984-85/data/pg/0068/0011/1750/1752.htm Evaluating seals for hydrocarbon accumulations]: AAPG Bulletin, vol. 68, no. 11, p. 1752–1763.</ref> practical techniques are few and seal is commonly risked in an intuitive, qualitative manner. However, quantitative seal analysis, using those few techniques available, improves success ratios and reduces costly errors in field development.

Sufficiently intense [[deformation]] in excess of top [[seal ductility]] can [[fracture]] a top seal. In addition, sufficiently high pore pressures in excess of the fracture pressure can induce [[Natural hydraulic fracturing of top seals|natural hydraulic fracturing]]. Both [[top seal]] and [[Fault seal behavior|fault seal]] are fundamental to prospect and play assessment as well as to production and field development. Despite our understanding of the variables that control [[seal]]s<ref name=ch10r19>Downey, M., W., 1984, [http://archives.datapages.com/data/bulletns/1984-85/data/pg/0068/0011/1750/1752.htm Evaluating seals for hydrocarbon accumulations]: AAPG Bulletin, vol. 68, no. 11, p. 1752–1763.</ref> practical techniques are few and seal is commonly risked in an intuitive, qualitative manner. However, quantitative seal analysis, using those few techniques available, improves success ratios and reduces costly errors in field development.

==Importance of seal==

==Importance of seal==

* Presence or absence of [[hydrocarbon]]s

* Presence or absence of [[hydrocarbon]]s

* [[Percent fill: controlling factors|Percent fill]]

* [[Percent fill: controlling factors|Percent fill]]

* Vertical and lateral distribution of hydrocarbons

* Vertical and [[lateral]] distribution of hydrocarbons

* [[Migration pathway]]s and [[Calculating charge volume|charge volume]]s

* [[Migration pathway]]s and [[Calculating charge volume|charge volume]]s

* Distribution and movement of hydrocarbons during field development

* Distribution and movement of hydrocarbons during field development

[[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]]