The spatial distribution of fractures in a reservoir affects the displacement of fluids and the prediction of future performance. Realistic characterization of fractured reservoirs requires quantification and classification of fracture patterns on the basis of the underlying geological characteristics and developing reservoir modeling algorithms that can integrate connectivity based (multiple p...

The major purpose of this work was to estimate the impacts of heterogeneous conditions on the heat extraction from EGS. These impacts were estimated based on a comparison of the heterogeneous reservoir responses with the response of an equivalent isotropic homogeneous reservoir. Multiple representations of a heterogeneous reservoir were considered in this analysis. The heterogeneity is a result...

The key of effective development for the fractured reservoir is to describe the distribution of the fracture and build the fracture geological model. To acquire more optimal exploration and development of the oilfield, objective geologic model of reservoir fractures is needed for further knowledge of the spatial distribution condition of fractures. Adopting well-logging and seismic techniques c...

Cultural objects of archeological findings are often broken and fractured into a large amount of fragments, and the archeologists are confronted by 3D puzzles when reassembling the fractured objects. Scanning the fragments and reassembling the corresponding 3D objects virtually is an elegant (and sometimes the only) solution. An efficient user interaction for the complex task to orientate or po...

A tracer test was carried out in a geothermal doublet system to study the injection behavior of a developed reservoir known to be fractured. The doublet produces about 320 gpm of 160' F heating and then injected; the wells are spaced 250 ft apart. observed in 2 hours and 45 minutes in the production well, indicating fracture flow. However, the tracer concentrations were low and indicated porous...

We propose a graph-based optimization framework for automatic 2D image fragment reas-sembly. First, we compute the potential matching between each pair of the image fragments based on their geometry and color. After that, a novel multi-piece matching algorithm is proposed to reassemble the overall image fragments. Finally, the reassembly result is refined by applying the graph optimization algo...

Fractured reservoirs contain about 85 and 90 percent of oil and gas resources respectively in Iran. A comprehensive study and investigation of fractures as the main factor affecting fluid flow or perhaps barrier seems necessary for reservoir development studies. High degrees of heterogeneity and sparseness of data have incapacitated conventional deterministic methods in fracture network modelin...

In this paper, decline curve analysis is used for estimating different parameters of bounded naturally fractured reservoirs. This analysis technique is based on rate transient technique, and it is shown that if production rate is plotted against time on a semi-log graph, straight lines are obtained that can be used to determine important parameters of the closed fractured reservoirs. The equati...

Heat extraction mode, e.g. well layout or arrangement of wells, of enhanced or engineered geothermal system (EGS) is crucial to its performance and directly affects its commercial viability. Assuming the subsurface target hot dry rock (HDR) has been well-fractured and the created heat reservoir can be treated as a homogeneous porous medium, we numerically simulate the long-term heat extraction ...

The Spraberry Formation in west-central Texas is a highly fractured formation with both extension and shear fractures. At least two sets of natural fractures exist in two reservoir intervals. We have considered two possible origins for the fracturing: (i) high fluid pressure plus tectonic stress and (ii) tectonic stress at near-hydrostatic fluid pressure. Reconstruction of geologic, thermal and...