What is reservoir geologic heterogeneity?
What is reservoir geologic heterogeneity?
The reservoir heterogeneity is then defined as a variation in reservoir properties as a function of space. These properties may include permeability, porosity, thickness, saturation, faults and fractures, rock facies, and rock characteristics.
What is the difference between anisotropy and heterogeneity?
Heterogeneity means that the means that you have spatial variation reservoir properties. Anisotropy implies that properties vary with direction. For example, permeability in x direction would differ from permeability in y.
What is heterogeneous rocks?
Rock as a natural material is heterogeneous. Rock material consists of minerals, crystals, cement, grains, and microcracks. Each component of rock has a different mechanical behavior under applied loading condition. A Weibull distribution function was fitted to the Young modulus distribution of minerals.
What causes reservoir heterogeneity?
Reservoir heterogeneity is a function of the porosity/permeability distribution due to lithologic variation during sedimentary deposition which is further complicated by mechanical processes related to deformation and chemical processes associated with diagenesis.
What is heterogeneous formation?
1. n. [Well Testing] Formation with rock properties changing with location in the reservoir. Some naturally fractured reservoirs are heterogeneous formations. Antonyms: homogeneous formation.
What is heterogeneous reservoir mean?
[‚hed·ə·rə′jē·nē·əs ′rez·əv‚wär] (geology) Formation with two or more noncommunicating sand members, each possibly with different specific- and relative-permeability characteristics.
What is anisotropy in geology?
In engineering geology, anisotropy refers to a rock whose engineering properties vary with direction. For example, schist, a highly anisotropic rock, has a compressive strength that varies depending upon the orientation of the foliation to the applied load (see COMPRESSIVE STRESS). A Dictionary of Earth Sciences.
What is anisotropy and isotropy?
isotropic: Properties of a material are identical in all directions. anisotropic: Properties of a material depend on the direction; for example, wood. In a piece of wood, you can see lines going in one direction; this direction is referred to as “with the grain”.
What is homogeneous rock?
By its definition as a homogeneous solid, a mineral is composed of a single solid substance of uniform composition that cannot be physically separated into simpler chemical compounds. Homogeneity is determined relative to the scale on which it is defined.
What are the different types of Geological heterogeneities?
Geological heterogeneities have been classified in a variety of ways according to their size or scale; the common categories, used here, are wellbore, interwell, and fieldwide scales of heterogeneity ( Figure 1 ).
Which is the best definition of reservoir heterogeneity?
The term reservoir heterogeneity is used here to describe the geological complexity of a reservoir and the relationship of that complexity to the flow of fluids through it. Reservoirs are inherently heterogeneous assemblages of depositional facies and subfacies (for more information,…
What is the difference between homogeneity and heterogeneous?
Homogeneity and heterogeneity are concepts often used in the sciences and statistics relating to the uniformity in a substance or organism. A material or image that is homogeneous is uniform in composition or character; one that is heterogeneous is distinctly nonuniform in one of these qualities.
What does heterogeneity mean in relation to cancer?
In cancer research, cancer cell heterogeneity is thought to be one of the underlying reasons that make treatment of cancer difficult. In physics, “heterogeneous” is understood to mean “having physical properties that vary within the medium”.
