POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
The ratio of effective permeability to absolute permeability for a fluid phase in a porous and permeable media in the presence of a second immiscible phase at a saturation condition. The relative permeability of a fluid phase is a number between zero and one (inclusive), and the relative permeability is one only when the porous medium is 100% saturated with the fluid phase. In practice, a third phase may be present but must at all times be immobile. In this case, the relative permeability values are always less than one. Relative permeabilities are expressed for the wetting and nonwetting phases as a function of wetting phase saturation.
- ref_rel_perm_orientation (M, K: ref_rel_perm_orientation(two_phase_rel_perm_point)) (C112, C138)
- The orientation of the relative permeability curve within the porous medium. Examples are isotropic, vertical, horizontal, along bedding plane, normal to bedding plane, x direction, y direction, z direction, etc. Each two_phase_rel_perm_point must have one ref_rel_perm_orientation.
- ref_rel_perm_usage (O, K: ref_rel_perm_usage(two_phase_rel_perm_point)) (C112, C138)
- The description of the intended meaning of the relative permeability value, usually based on the wetting phase saturation, such as residual, critical, connate, maximum or endpoint. Each two_phase_rel_perm_point may represent one ref_rel_perm_usage.
- ref_two_phase_rel_perm (M, K: ref_two_phase_rel_perm(two_phase_rel_perm_point)) (C138)
- The kind of two phase relative permeability, such as nonwetting drainage or wetting imbibition. Each two_phase_rel_perm_point must be a kind of one ref_two_phase_rel_perm.
- two_phase_rock_fl_interact (O, K: two_phase_rock_fl_interact(two_phase_rel_perm_point)) (C112)
- Specifies the system which has this relative permeability data. Each two_phase_rel_perm_point may characterize one two_phase_rock_fl_interact.
- two_phase_rel_perm_curve (O, K: two_phase_rel_perm_curve(two_phase_rel_perm_point))
- This is the relative permeability curve that this point is defined as part of. Each two_phase_rel_perm_point may characterize one two_phase_rel_perm_curve.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- instance_create_date (O, I: ndt_date_tod) (C126)
- This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance. Inherited from e_and_p_data.
- instance_creator (O, I: ndt_identifier) (C126)
- This is the person, company or application that created this instance. This identifies the party responsible for loading this instance. Inherited from e_and_p_data.
- last_updated (O, I: ndt_date_tod) (C126)
- This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships). Inherited from e_and_p_data.
- last_updated_by (O, I: ndt_identifier) (C126)
- This records the person or application making the update to this instance. Inherited from e_and_p_data.
- source (O, I: ndt_identifier) (C126)
- The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC". Inherited from e_and_p_data.
- data_collection (I, V: SET[0:?] data_collection_content(collection_part)) (C020)
- Indicates the data collections that include this instance of E and P data. Each two_phase_rel_perm_point may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- derived_interest (I, V: SET[0:?] derived_interest_makeup(interest_for)) (C071, C122)
- These are the ownership fractions for business associates of this object. Each two_phase_rel_perm_point may be referenced by one or more derived_interest_makeup. Inherited from object_of_interest.
- document_information_content (I, V: SET[0:?] document_information_content(e_and_p_data)) (C136)
- These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each two_phase_rel_perm_point may be included in one or more document_information_content. Inherited from e_and_p_data.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each two_phase_rel_perm_point may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- involving_activity (I, V: SET[0:?] object_activity_involvement(involved_object)) (C056)
- This are the activity involvements which affect the object. Each two_phase_rel_perm_point may have involvements with one or more object_activity_involvement. Inherited from object_of_interest.
- pty_two_phase_rel_perm_point (V: SET[0:?] pty_two_phase_rel_perm_point(two_phase_rel_perm_point))
- Each two_phase_rel_perm_point may have a property of one or more pty_two_phase_rel_perm_point.
Local rules:
- Uniqueness Constraint
- ref_rel_perm_orientation, ref_rel_perm_usage, ref_two_phase_rel_perm, two_phase_rock_fl_interact, two_phase_rel_perm_curve
- Mandatory Relationship Set (C112)
-
Each TWO PHASE REL PERM POINT must characterize either a TWO PHASE REL PERM CURVE or a TWO PHASE ROCK FLUID INTERACTION.
Supertype path(s):
Referenced in Diagrams:
Generated on Tue Jul 10 15:55:15 2001
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