What is a heterogeneous rock?

Heterogeneous rocks are usually of sedimentary origin and consist of relatively stronger and weaker rock alternately with varying thickness. Complex geological formations such as turbidites, flysch and molasses are typical examples of such rocks.

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 are reservoir heterogeneities?

1. n. [Well Testing, Enhanced Oil Recovery] The variations in rock properties in a reservoir. The variations can result in directional variations in permeability. Geological processes, such as sedimentation, diagenesis and erosion, act to produce nonuniformities in rock formations.

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 are homogeneous rocks?

occurrence in minerals 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 is homogeneity in geology?

1. adj. [Geology] Possessing the quality of uniformity. If irregularities are distributed evenly in a material, the material is homogeneous.

What is homogeneous and heterogeneous nucleation?

Homogeneous and heterogeneous nucleation are the two major forms of nucleation. The difference between homogeneous and heterogeneous nucleation is that homogeneous nucleation occurs away from the surface of the system whereas heterogeneous nucleation occurs at the surface of the system.

What is isotropic reservoir?

A type of formation whose rock properties are the same in all directions. Although this never actually occurs, fluid flow in rocks approximates this situation closely enough to consider certain formations isotropic. Antonyms: anisotropic formation.

How the substantial bacterial activity is achieved in meor?

Pore size/geometry. One study has concluded that substantial bacterial activity is achieved when there are interconnections of pores having at least 0.2µ diameter. It is expected that pore size and geometry may affect chemotaxis.

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.