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| | part = Critical elements of the petroleum system | | | part = Critical elements of the petroleum system |
| | chapter = Migration of petroleum | | | chapter = Migration of petroleum |
− | | frompg = 7-1 | + | | frompg = 7-32 |
− | | topg = 7-38 | + | | topg = 7-34 |
| | author = Martin D. Matthews | | | author = Martin D. Matthews |
| | link = http://archives.datapages.com/data/specpubs/beaumont/ch07/ch07.htm | | | link = http://archives.datapages.com/data/specpubs/beaumont/ch07/ch07.htm |
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| {| class = "wikitable" | | {| class = "wikitable" |
| |- | | |- |
− | ! Source rock factors | + | ! Source rock factors || Migration factors |
− | ! Migration factors
| |
| |- | | |- |
− | | Drainage area | + | | Drainage area || [[Lateral]] migration distance |
− | | Lateral migration distance | |
| |- | | |- |
− | | Thickness | + | | Thickness || Vertical migration distance |
− | | Vertical migration distance | |
| |- | | |- |
− | | Potential ultimate yield | + | | Potential ultimate yield || Lateral migration factor* |
− | | Lateral migration factor <xref ref-type="table-fn" rid="ch07tblfn1"> * </xref> | |
| |- | | |- |
− | | Yield fraction timing | + | | Yield fraction timing || Vertical migration factor* |
− | | Vertical migration factor <xref ref-type="table-fn" rid="ch07tblfn1"> * </xref> | |
| |} | | |} |
| + | <sup>* A function of lithology, depth, degree of fracturing, and/or faulting</sup> |
| | | |
| ==Procedure== | | ==Procedure== |
| The table below lists a procedure for estimating the volume of migrated hydrocarbons available to fill a trap. | | The table below lists a procedure for estimating the volume of migrated hydrocarbons available to fill a trap. |
| | | |
− | {| class = "wikitable"
| + | # Calculate the volume of hydrocarbons generated by the [[source rock]], using the formula <math>\text{V} = \text{A} \times \text{T} \times \text{Y} \times \text{M}</math>, where: |
− | |-
| + | #* ''V'' = potential charge volume |
− | ! Step
| + | #* ''A'' = area |
− | ! Action
| + | #* ''T'' = source rock thickness |
− | |-
| + | #* ''Y'' = hydrocarbon yield per volume of source from each [[kerogen]] facies and maturity class |
− | | 1
| + | #* ''M'' = migration efficiency |
− | | Calculate the volume of hydrocarbons generated by the [[source rock]], using the formula ''V'' = ''A'' × ''T'' × ''Y'' × ''M'', where:
| + | # Estimate the proportion of the source rock that supplied hydrocarbons to the area in which the trap is located (drainage area). Use a map of the mature source rock. |
− | * ''V'' = potential charge volume | + | # Estimate the efficiency of the migration process. For example, did 20% of the generated hydrocarbons travel from the source rock to the trap? |
− | * ''A'' = area | + | # Calculate the volume of migrated hydrocarbons available to fill the trap |
− | * ''T'' = source rock thickness | |
− | * ''Y'' = hydrocarbon yield per volume of source from each kerogen facies and maturity class | |
− | * ''M'' = migration efficiency | |
− | |-
| |
− | | 2
| |
− | | Estimate the proportion of the source rock that supplied hydrocarbons to the area in which the trap is located (drainage area). Use a map of the mature source rock.
| |
− | |-
| |
− | | 3
| |
− | | Estimate the efficiency of the migration process. For example, did 20% of the generated hydrocarbons travel from the source rock to the trap?
| |
− | |-
| |
− | | 4
| |
− | | Calculate the volume of migrated hydrocarbons available to fill the trap
| |
− | |}
| |
| | | |
| ==Estimating drainage area== | | ==Estimating drainage area== |
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| [[file:migration-of-petroleum_fig7-12.png|300px|thumb|{{figure number|1}}Hypothetical migration pathway map.]] | | [[file:migration-of-petroleum_fig7-12.png|300px|thumb|{{figure number|1}}Hypothetical migration pathway map.]] |
| | | |
− | [[:file:migration-of-petroleum_fig7-12.png|Figure 1]] is a hypothetical migration pathway map. The lower map shows the thickness of source rock, the top of the oil and gas windows, and the drainage areas for two traps labeled A and B of the same area shown in the upper map. The drainage areas for traps A and B were made using the migration pathway map. | + | [[:file:migration-of-petroleum_fig7-12.png|Figure 1]] is a hypothetical [[migration pathway]] map. The lower map shows the thickness of source rock, the top of the oil and gas windows, and the drainage areas for two traps labeled A and B of the same area shown in the upper map. The drainage areas for traps A and B were made using the migration pathway map. |
| | | |
| ==Example of calculating volume== | | ==Example of calculating volume== |
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| [[Category:Critical elements of the petroleum system]] | | [[Category:Critical elements of the petroleum system]] |
| [[Category:Migration of petroleum]] [[Category:Pages with bad references]] | | [[Category:Migration of petroleum]] [[Category:Pages with bad references]] |
| + | [[Category:Treatise Handbook 3]] |