Fractures play an important role in most carbonate and unconventional reservoirs. Precise identification of fractures and their associated properties from seismic data have significant impact on reservoir management and hydrocarbon recovery. Traditional seismic methods for fracture identification and characterization, such as shear birefringence and amplitude variations with offset and azimuth,...

We present results of 3D numerical modeling using a series of simple point scatterers to create synthetic seismic shot records collected over regular, discrete, vertical fracture systems. The background medium is taken to be constant velocity. The model contains a series of point scatterers delineating the top tip and bottom tip of each vertical fracture. We use these results to gain an underst...

We present an analytical approach for pressure transient test analysis in naturally fractured vuggy reservoirs. This analysis approach relies on a triple-continuum concept, using observed geological data from carbonate oil formations in western China, to describe transient flow behavior in fracture-vugmatrix reservoirs. In the conceptual mathematical model, fractured vuggy rock is considered as...

Heterogeneous structures represent an important new frontier for 21st century engineering. Human tissues, composites, ‘smart’ and multimaterial objects are all physically manifest in the world as three-dimensional (3D) objects with varying surface, internal and volumetric properties and geometries. For instance, a tissue engineered structure, such as bone scaffold for guided tissue regeneration...

In this paper we present the modeling and visualization of the cultural heritage area of Bamiyan, Afghanistan. The region is situated ca 200 km north-west of Kabul and it was one of the major Buddhist centres until the ninth century AD. The two standing Buddhas belonged to some of the most famous Buddhist monuments world-wide. In 2001 they were destroyed through an act of vandalism by the Taleb...

the rapid growth in natural gas consumption has increased the need for gas storage, in particular in the form of injection into depleted reservoirs. also, co2 sequestration into the depleted reservoirs has attracted a large attention recently. however, it is important to ensure that the injection pressure is maintained below a certain limit to avoid unsealing the cap rock or reactivation of any...

We introduce an approach for the stochastic characterization of geometric and hydraulic parameters a three-dimensional (3D) discrete fracture network (DFN) estimating their uncertainty based on data from tomography experiments. The inversion relies Bayesian framework resulting posterior distribution is characterized by generating samples Markov chain Monte Carlo (MCMC) methods. method evaluated...

The existence of vugs or cavities in naturally fractured reservoirs has long been observed. Even though these vugs can be largely attributed to reserves of oil, natural gas, and groundwater, few investigations of vuggy fractured reservoirs have been conducted. In this paper, a new multiple-continuum conceptual model is developed, based on geological data and observations of core samples from ca...

In this paper, a 3D Smooth Particle Hydrodynamics (SPH) simulator for modeling grain scale fluid flow in porous rock is presented. The versatility of the SPH method has driven its use in increasingly complex areas of flow analysis, including flows related to porous rock for both groundwater and petroleum reservoir research. Previous approaches to such problems using SPH have involved the use of...

Abstract In this study, the correlation between geometric properties of fracture network and stress variability in a fractured rock was studied. Initially, discrete networks were generated using stochastic approach, then, considering tensorial nature stress, field under various tectonic conditions determined finite-difference method. Ultimately, data analyzed tensor-based mathematical relations...