Publications Internationales

Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/13

Browse

Filters

2008 - 20092

Settings

Author: search.filters.author.Nedjari, A.Subject: search.filters.subject.Sahara

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    The use of the modular dynamic tool in petrophysical parameters evaluation : application to the Bir-Berkine reservoirs - Algeria
    (2008) Baouche, Rafik; Nedjari, A.
    The technological development and the complexity of the reservoirs unceasingly encourage us to improve our working methods, of acquisition processing and interpretation of well logs, but the information provided by the well logs related to the localisation of hydrocarbons bearing zones is not perfect. The Modular Dynamic formation Tester (MDT) is a new generation of tools designed for the more pointed tests of formation. By using its various configurations and options it offers, unquestionable opportunity to obtain, starting from the pressure taps, a varied range of invaluable information for the management of the reservoirs. The virgin reservoirs service MDT is used:To determine the levels of the contacts of fluids (WOC and GOC): to determine the densities of the fluids; to characterize the reservoir heterogeneity; to decide the completion mode; to optimize the mud density to be used. In the development of reserves: to establish a pressure profile; to estimate the vertical and horizontal permeabilities; to detect the robbers zones; to determine the communications between the wells; The principal goal of this work is by combining the results of petrophysic measurements and pressure. To achieve this goal the study is articulated on four essential points:• The evaluation of the petrophysical parameters of the Bir-Berkine reservoirs; • Interpretation of pressure measurements; • Well to well correlation; • Result synthesis
  • No Thumbnail Available
    Item
    Facies analysis of triassic formations of the Hassi R’Mel in southern algeria using well logs : recognition of paleosols using log analysis
    (2009) Baouche, Rafik; Nedjari, A.; El Aadj, S.; Chaouchi, Rabah
    Well logs are essential in the study of geological formations, in terms of taking into account the nature and the structure of the formations, as well as the sedimentary processes. Qualitative and quantitative interpretations of well logs respond to a sedimentologic need as well as the establishment of lithological columns, according to the response to logging tools. In this study, electrofacies have been defined by manual well-log analysis of ten surveys of Triassic formations in the Hassi R'Mel area of Algeria. The data thus obtained were then matched with sedimentary facies defined by core analysis. The results obtained during the facies analysis made it possible to define ten electrofacies (sands, shale, dolomite, and evaporite, as well as the presence of andesite and clay). The model obtained by the Petrolog software was also developed and tested on other wells. A semi-automatic data processing was then carried out on seven other wells.Our aim is to highlight the added value of this integrated regional-scale to reservoir-scale approach in identifying nearfield exploration potential and additional recovery opportunities in producing reservoirs. Based on this aim, we emphasise the following points using our facies modelling: (1) improved definition of deposition within and between reservoirs, (2) development of regionally sedimentological models for reservoir intervals (the Hassi R’Mel Formations), and (3) recognition of paleosols from well log analysis and controls on reservoir architecture and their links to the Triassic Province of Algeria