Application of the lattice Boltzmann method (LBM) to invasion percolation of single component multiphase fluids in porous media offers an opportunity for more realistic modeling of the configurations and dynamics of liquid/vapor and liquid/solid interfaces. The complex geometry of connected paths in standard invasion percolation models arises solely from the spatial arrangement of simple elemen...

Interfaces moving in a disordered medium exhibit stochastic velocity fluctuations obeying universal scaling relations related to the presence or absence of conservation laws. For fluid invasion of porous media, we show that the fluctuations of the velocity are governed by a geometry-dependent length scale arising from fluid conservation. This result is compared to the statistics resulting from ...

This study evaluated the effects of frankfurter fat content on Listeria monocytogenes resistance to heat stress and gastric fluid, and the Caco-2 cell invasion efficiency of the pathogen. A 10-strain mixture of L. monocytogenes was inoculated on frankfurters formulated with 10%, 20%, and 30% fat content (10%: F10, 20%: F20, 30%: F30) and stored at 10℃ for 30 d. The samples were analyzed for L. ...

cementing is an essential part of every drilling operation. protection of the wellbore from formation fluid invasion is one of the primary tasks of a cement job. failure in this task results in catastrophic events, such as blow outs. hence, in order to save the well and avoid risky and operationally difficult remedial cementing, slurry must be optimized to be resistant against gas migration phe...

We describe the successful application of a new method to estimate permeability and permeability anisotropy from transient measurements of pressure acquired with a wireline straddle-packer formation tester. Unlike standard algorithms used for the interpretation of formation-tester measurements, the method developed in this paper incorporates the physics of two-phase immiscible flow as well as t...

The purpose of this study was to analyse a correlation among lung cancer morphology, growth type, localisation and pleura as well as mediastinal invasion. Materials and methods. Data on 372 patients have been analysed. Mediastinal invasion was histologically confirmed in 128 (34.4%) patients. Aorta invasion was confirmed in 21 (5.6%), vena cava superior in 11 (2.9%), pericardium in 55 (14.8%), ...

During the drilling and development of sour natural gas (including CO 2 H S) fields, due to high solubility in fluid, concealment after invasion increases, resulting well control accidents. Therefore, it is great significance for field deeply study understand acid flow law annular air liquid invasion. In this paper, a multiphase equation considering dissolution established. Based on existing ex...