Descriptions of rock fabric and texture are of great value to geologists and petrophysicists as they can be used in facies analysis and in the interpretation of the environment of deposition. Grain shape and size information is used to correlate to petrophysical properties. They are also of importance to the production technologist for completion design and sand strength/failure prediction. Tex...

Analyse trends and moods from the environment (social networks, blogs, forums, etc.) by combining semantically-enriched UGC with corporate data A hierarchy of topics must be defined to perform effective analyses, but topics are HETEROGENEOUS FUZZY EXPRESSIVE UNPREDICTABLE META-STAR is an alternative to star-schema for modeling topic hierarchies, which combines meta-modeling, navigation tables, ...

In the introductory part, this paper defines the general environment for this research and defines the terms of interest. Then we define the research problem: How to find a mechanism that guarantees that a file stored in a conventional file system, on disk, has not been modified; this problem is important because it enables security of the imperceptible changing of data, which is the main probl...

Examples from the Polish clastic and carbonate reservoirs Central Anticlinorium, Carpathians Carpathian Foredeep are presented to illustrate possibilities of using well logging geothermal resources recognition characterization. Firstly, there was a short description selected logs methodology determination petrophysical parameters useful in investigations: porosity, permeability, fracturing, min...

Abstract Advection-diffusion models have been used successfully to describe the time and place of recapture of tuna tagged with conventional dart tags. Such models are the continuous analogs of a biased random walk. This paper demonstrates how biased random walks can be used to simulate large scale movements of tunas as recorded by archival tags in a way that captures all of the major character...

Precise estimation of total organic carbon (TOC) is extremely important for the successful characterization an unconventional shale reservoir. Indirect traditional continuous TOC prediction methods from well-logs fail to provide accurate in complex and heterogeneous reservoirs. A workflow proposed predict a profile through various ensemble learning regression models Goldwyer formation Canning B...

The lateral sealing ability of a normal fault is a major factor in creating hydrocarbon traps. Therefore, a methodology for assessing the sealing ability of faults in the siliciclastic sequences of subsidence basins has been established; moreover, by using this methodology, the uncertainty inherent in hydrocarbon exploration can be decreased. Moreover, the petrophysical properties of fault roc...

Fuzzy rule based systems have been very popular in many engineering applications. In petroleum engineering, fuzzy rules are normally constructed using some fuzzy rule extraction techniques to establish the petrophysical properties prediction model. However, when generating fizzy rules from the available information, it may result in a sparse fuzzy rule base. The use of more than one input varia...

INTRODUCTION The advent of a commercial electromagnetic (EM) multicomponent borehole logging tool with capabilities to measure electric anisotropy, has spearheaded efforts to simulate numerically the tool’s response in complex 3D logging environments (Wang and Fang, 2001; Avdeev et al., 2002; and Newman and Alumbaugh, 2002). Modelling formation electric anisotropy effects is of significance to ...