Sentence examples for existence of fractures from inspiring English sources

One fundamental reason for a decline in oil production with time is the existence of fractures and permeability variations that exist between the different layers of the reservoir.

The validity of the Archie equation depends on the existence of fractures, the frequency, and the range of water saturation.

The existence of fractures vastly improves the seepage capability on tight gas sandstones.

The existence of fractures led to velocity decrease for both the compressional and shear waves.

The existence of fractures led to decrease of the acoustic wave velocity.

Thus, the existence of fractures and fracture width were the influence factors of the compressional and shear wave velocity.

However, ramified dissolution occurs in the extremely heterogeneous formation, and the existence of fracture networks have less influence on the development of wormhole branches.

This is consistent with the existence of fracture reservoirs in the Qingxi Sag (Cheng et al. 2007; Wang et al. 2008).

In this view, a DEM based numerical model is proposed to analyse the fluid flow through reservoir's porous media with complex characteristics, especially in the case of existence of natural fractures, hydraulic fractures and interaction of hydraulic and natural fractures for any condition of fluid flow.

Nevertheless, regeneration of such reservoirs is a great challenge because of the co-existence of fractures and vugs over a wide range of scales.

It is shown that the existence of natural fractures, which has a significant induced effect on the initiation and propagation of hydraulic fracture, contributes greatly to the increase of crack number and growth rate of porosity.