AGH Drilling, Oil, Gas
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ISSN 2299-4157
e-ISSN: 2300-7052
Issue Date
2015
Volume
Vol. 32
Number
No. 3
Description
Journal Volume
AGH Drilling, Oil, Gas
Vol. 32 (2015)
Projects
Pages
Articles
A review of pile machines and their selection criteria
(2015) Gonet, Andrzej; Stryczek, Stanisław; Fyda, Michał
Many geoengineering investments can be realized thanks to the use of piles, which may play numerous functions. The piles were classified in the paper in view of assumed criteria and most frequent applications. These works can be performed with specialist pile equipment. In the description attention was paid to the most important technical parameters of pile machines produced by such companies as Bauer, Casagrande and Soilmec. The multi-criteria method with a synthetic measure of evaluation was used for selecting the most suitable pile machine. Among the assumed criteria were the pull up/down force, torque, maximum depth and diameter of the pile and the main winch. The analysis of the obtained weights and criteria revealed that the Bauer pile machine BG 50 had the highest CCS pull up/down and torque and was most appropriate for making long and large-diameter piles.
Characterization, properties and microstructure of spent drilling mud from the point of view of environmental protection
(2015) Fijał, Jerzy; Gonet, Andrzej; Jamrozik, Aleksandra
This investigations were carried out on different spent water-based muds, collected in drillings in various parts of Poland. The combined study methods included structural and phase investigations (X-ray diffractometry, infrared FTIR spectroscopy, scanning electron microscopy) and instrumental chemical determinations. The results characterize mineral and phase composition of the samples, their microstructure and chemical composition. The authors focused on the specific nature of polymer-clay complexes, which in drilling mud systems have the form of delaminated or exfoliated organic-clay polymer nanocomposites that control properties of such waste materials. Detailed recognition of properties chemistry, mineral and phase composition, microstructure of spent drilling muds have a fundamental meaning for studies on the management of these materials in the natural environmental.
The influence of wettability on oil recovery
(2015) Kulinič, Vitalij
Understanding the mechanism by which oil is displaced from the porous medium requires knowledge about the role of wetting and capillary forces during EOR. Knowledge of the effect of wettability on oil production is also a key point for understanding the behavior of multiphase flows in the reservoir. A literature review indicates that wettability is one of the main factors controlling and regulating the distribution of oil and water in the reservoir rock. Therefore, the resolution of problems associated with the calculation of oil resources, operation and analysis of core deposits, must take into account the wettability of rock. Therefore, the study of such phenomena as wettability is still valid today. In the paper reservoir rock wettability and its types were described. Direct and indirect methods of determining the wettability were characterized, the graph of capillary pressure is used to characterize the wettability. In order to determine the effect of wettability on multiphase flow in porous media are discussed petrophysical parameters: capillary pressure, relative permeability and hydrocarbon saturation of the rock. Characterized wettability of each of the porous medium of carbonate and sandstone reservoirs.
Drilling mud for shale gas drilling
(2015) Kędzierski, Miłosz; Wysocki, Sławomir; Wiśniowski, Rafał; Uliasz, Małgorzata; Zima, Grzegorz
The selection of the relevant components the drilling of 5mud can reduce the occurrence of negative physical-chemical phenomena observed between shales and drilling mud. The purpose of laboratory examination was to estimate the impact of different polymer inhibitors for hydration of clays and shales. A laboratory test were performed in order to estimate the concentration of polymer inhibitors in preventing the phenomena taking place in contact with the shale rocks – drilling mud. Also, research the influence a drilling fluids containing different kinds of hydration inhibitors on swelling and clays and shales dispersion.
Laboratory research on the influence of new BG-027 polymer addition on technological parameters of drilling mud dedicated to directional drilling in shale rocks
(2015) Wysocki, Sławomir; Wiśniowski, Rafał; Stopyra, Edyta; Romański, Michał
This paper shows the research results on the influence of new BG-027 polymer used in different concentrations onto technological properties of drilling mud for drilling in shale and clay rocks. Standard API test has been conducted as well as thermal resistance, resistance to mono- and divalent salts, LST were studied. The results show that polymer BG-027 addition gives the mud good technological parameters and is a good hydration inhibitor.