A distributed neural network, running on a large transputer-based parallel computer, was trained to identify the presence of the main lithographical facies types in a particular oil well, using only the readings obtained by a log probe. The resulting trained network was then used to analyse a variety of other wells, and showed only a small decrease in accuracy of identiication. Geologists class...

The Devonian to Carboniferous sinters of the Drummond Basin, Australia, are among the oldest well established examples of fossil subaerial hot springs. Numerous subaerial and subaqueous spring deposits are known from the geological record as a result of the occurrence of economic mineral deposits in many of them. Some are reported to contain fossils, but very few have been studied by paleobio...

Nowadays, there are significant issues in the classification of lithofacies and identification rock types particular. Zamzama gas field demonstrates complex nature due to heterogeneous reservoir formation, while it is quite challenging identify lithofacies. Using our machine learning approach cluster analysis, we can not only resolve these difficulties, but also minimize their time-consuming as...

Defining distinctive areas of the physical properties rocks plays an important role in reservoir evaluation and hydrocarbon production as core data are challenging to obtain from all wells. In this work, we study lithofacies values using machine learning algorithms determination classification various well log Kazakhstan Norway. We also use wavelet-transformed identify geological data. Numerica...

The term "electrofacies" was introduced in 1980 by Serra and Abbott, it had been developed promptly since 2009. development triggered predominantly wireline logging technology artificial intelligence technology. electrofacies categorization intended to facilitate the study of reservoir characterization. However, is difficult formulate deterministically, due uniqueness depositional environment g...

Abstract The proportion of different lithofacies is essential to determine the net-gross ratio, which directly affects calculation oil and gas reserves. Under condition few wells, reliability proportions obtained using well data poor because it difficult estimate uncertainty variation range proportions. present study overcomes this problem an evaluation method for reservoir proportion. First, a...

The Albian Carbonate-clastic succession in the present study is represented by Mauddud and Nahr Umr formations were deposited during stage within Wasia Group More than 200 thin sections of cores cuttings addition to well logs data for from 4 boreholes two oil fields (Ba-4, Ba-8, Ns-2 Ns-4) used interpret different associations facies as architectures describe sedimentary framework basin develop...

At present, the understanding of sedimentary paleoenvironment and organic matter enrichment law black shale in Wufeng-Longmaxi Formation is still insufficient. This time, we investigated total carbon (TOC) content, X-ray diffraction mineralogical composition, major trace element abundances newly recovered cores three gas exploration wells Changning, Qianjiang, Xiushan areas which were, respecti...