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Wyświetlanie 1-15 z 73
Tytuł:
Water well activation with application of clay minerals disintegration agent
Autorzy:
Macuda, J.
Wysocki, S.
Gaczoł, M.
Powiązania:
https://bibliotekanauki.pl/articles/298707.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
formation permeability
formation clogging
disintegration of clay minerals
well
well activation
well efficiency
well exploitation
well life expectancy
Opis:
While drilling a well using rotary drilling method with drilling mud application, permeability damage of aquifer layers in near-well zone takes place. It is caused mainly by inflow of both solid phase and filtrate originated from the mud into pores or fractures of drilled rock. In consequence of this phenomenon, pressure drawdown increase and well hydraulic efficiency decrease can be observed, what leads to exploitation capacity diminution. For the reparation of formation damaged permeability in near-well zone, new agent for disintegration of clay minerals called SKINAUT was developed at the Drilling, Oil and Gas Faculty of AGH-UST Krakow. In order to confirm its effectiveness in industrial conditions, it was conducted test of well activation for water intake from loose formation. Applied agent allowed to counteract the clogging of pore spaces and to reduce the hydraulic resistance of well thereby decreasing pressure drawdown and considerably improving well efficiency.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 2; 587-595
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Many years’ extraction of groundwater in the context of established usable groundwater reserves
Autorzy:
Macuda, J.
Styrkowiec, E.
Powiązania:
https://bibliotekanauki.pl/articles/298693.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
well
intake well
usable reserves
establishing reserves
life of well
water extraction
groundwater reserves
test pumping
well construction
Opis:
The operation of water supply networks basically relies on the ability of supply water, which in the case of groundwater intakes, is defined by usable reserves offered by the wells involved. Their establishing is the last stage of an investment, i.e. building of groundwater intakes, and their value determines the type of infrastructure and technological hardware in the wells. Owing to the fact that the usable groundwater reserves are conditioned by a number of factors (economic, technological, environmental) their correct determining depends on the correct definition of the number and quality of measurements and hydrogeological observations. In practice, these measurements tend to be shortened to minimum (test pumping) or discarded (diagnostics of well construction) for financial reasons. As a result the user obtains either over- or underestimated information about the intake parameters. Exploitation of a well with overestimated capacity brings about serious technological and economic consequences, starting from the lowered productivity (drop of water table, lower yield), change of chemical composition of water, sanding up of the well as well as well failures and damage. The use of a well with underrated output does not shorten the life of the well, though is disadvantageous for the economic reasons. The productivity of wells can be verified after a few years of controlled extraction, on the basis of which the cost of water extraction, stability of chemical composition or impact on other intakes in given work conditions. Accordingly, this is a basis for updating usable groundwater reserves of the wells. Moreover, after many years of observation of groundwater intakes, one can formulate recommendations warrantying long life of wells, rational management of pump aggregates and well renovation plans.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 2; 419-427
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of effective chemical compounds for drilled wells
Autorzy:
Macuda, J.
Klima, K.
Powiązania:
https://bibliotekanauki.pl/articles/299014.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
hydrochemistry
water well
well screen
rehabilitation of wells
regeneration of wells
well clogging
Opis:
Drilled wells during their operation are subject to so-called “aging” processes, which is visible in the decrease of their efficiency and increase in depression. The process, especially in case of quaternary and tertiary waters, is most affected by the chemical colmatation of the filter and filter-adjacent zone with chemical compounds precipitated from the flowing water. The literature analysis shows that ferrous sediments are the main mass of sediments clogging the quaternary and tertiary water intakes. They are usually in the form of soft reddish-colored sediments, and their essential element is Fe2O3 and FeO. Iron, siderite and quartz hydroxides were also found. The degree of colmatation in such wells can be significantly reduced by frequent renovations with chemical methods. The article presents results of laboratory tests on dissolution of sediments clogging withdrawal well filters with sodium dithionite (Na2S2O4) and sodium pyrosulphite (Na2S2O5). Representative samples were taken from selected quaternary water intakes in northern Poland.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 1; 181-186
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of low frequency vibrations on drillstring dynamics
Autorzy:
Chernova, M, YE
Powiązania:
https://bibliotekanauki.pl/articles/299143.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
drilling
well
vibrations
Opis:
During the drilling process, between the drilling bit that ruins the rock in the bottom-hole and the energy source located on the ground surface is the drillstring that has certain length and small cross cuts that define the dynamics of the drilling bit work. Along with the development of science, for optimization of drilling processes were developed and continue to be elaborated mathematical models that use empirical dependencies based mainly on laboratory data which are very far away from the real conditions of well construction and fail to take into account all the peculiarities of this process. Thus, the management of the drillstring dynamics related to an increase in the effectiveness of deep directional and horizontal wells drilling process through the minimization of torsional and longitudinal Iow frequency vibrations of drilling instrument is a matter of topical interest nowadays.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 3; 423-430
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drilling large diameter water wells in carbonate strata in the Lublin area
Autorzy:
Macuda, J.
Macuda, M.
Powiązania:
https://bibliotekanauki.pl/articles/298629.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
well
water well
hydrogeological well
drilling technology
reverse circulation
drilling technology parameters
cogged bit
drillability test
Opis:
One of the most important sources of water for communal purposes in the Lublin area are the useful groundwater aquifers intaken with deep drilled wells. Such wells should be highly efficient and localized in a close vicinity of the local water supply network to lower the cost of transport. Large amounts of water can be produced by large diameter wells, where heavy duty pump aggregates can be installed. High rates of penetration cannot be obtained if the profile abounds in hardly drillable carbonate. This elongates the time of drilling and increases negative impact of mud on the near well zone of the aquifer. It also lowers hydraulic parameters of the well. To improve the efficiency of the wells, drillability tests with cogged bits were performed in carbonate rocks to optimize the mechanical parameters of drilling. Measurement sections, each 0.3 to 0.5 m long, were selected for the tests. Each section was drilled at constant rotational speed and weight of bit values. Prior to the drillability tests, the limits on the weight of bit and rotational speed of the bit were established, in line with the technological characteristic of rig Wirth B3A, strength of the string and of the cogged bit.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 1; 31-39
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technology for preparing washing liquid
Autorzy:
Davydenko, A.
Kamyshatsky, A.
Powiązania:
https://bibliotekanauki.pl/articles/299028.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
well drilling
well
washing liquid
hydrodynamic super-cavitation
cavitation disperser
Opis:
The advantages of the hydrodynamic super-cavitation technique used for the preparation of washing liquids in the course of drilling have been described. The results of theoretical research have been confirmed in practice and laid the foundation for creating a technique for preparing washing liquid.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 4; 693-697
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of wells reconstruction on their operational parameters
Autorzy:
Macuda, J.
Styrkowiec, E.
Rajpold, W.
Powiązania:
https://bibliotekanauki.pl/articles/298645.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
well
operational resources
determination of resources
well life
long-term operation
Opis:
Use of deep water-bearing horizons on an industrial scale is an expensive undertaking, mainly in the first phase of the project which is the well construction stage. Also, emergencies occur during the well operation, with the most frequent including yield reduction caused by the poor technical condition of the well. These 17 frequently lead to the total decommissioning of the well, caused, for example, by backfill, filter damage or casing pipe damage. After conducting the proper diagnostics, a decision is most often made in such cases to reconstruct a well, and much less seldom to drill a new well hole. Reconstruction of water intake wells usually encompasses replacement of the entire filter column with the well filter damaged as a result of ageing. As new technologies and materials become available on the market, it is possible to use new generation filters in the well construction, with better technical parameters (in terms of strength, hydraulics and corrosion resistance). In many cases, it allows for maintaining or achieving similar operational parameters in the reconstructed well. The determination of resources for a reconstructed well should, however, take into account modified filtration conditions in the aquifer’s zone adjacent to the filter because of the zone siltation during previous use of the well. The paper includes an evaluation of the impact of the reconstruction of two wells extracting water from the Lower Cretaceous level on improvement of their yields.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 1; 335-342
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza i ocena możliwości renowacji odwiertu w uzdrowisku Połczyn
Analysis and assessment of well renovation possibilities in health resort Połczyn
Autorzy:
Solecki, T.
Powiązania:
https://bibliotekanauki.pl/articles/300431.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
woda lecznicza
renowacja odwiertu
kwasowanie odwiertu
mineral waters
well renovation
well stimulation
Opis:
Artykuł przedstawia dwa sposoby przywrócenia zdolności wydobywania mineralnej wody leczniczej z odwiertu. Pierwszy sposób polega na usprawnieniu odwiertu bez zmiany jego konstrukcji, przez ponowną perforację oraz kwasowanie. Drugi sposób polega na ponownym przewierceniu warstwy wodonośnej w odchylonej osi otworu oraz instalacji dodatkowego filtra obejmującego całą miąższość warstwy wodonośnej. Z analizy wynika, że obydwa sposoby umożliwiają przywrócenie zdolności wydobywczej odwiertu. Wybór sposobu powinien być dokonany na podstawie analizy kosztów.
The article presents two ways of restoring the capacity of the extraction of mineral water from the borehole. The first way is to improve the well without changing its construction, using casing perforation and well stimulation. The second way is to re-drilling aquifer in the inclined axis of the borehole and the installation of additional well screen covering the entire thickness of the aquifer. The analysis shows that both methods allow the restoration of borehole extraction capacity. The choice of way should be determined on the basis of their cost.
Źródło:
Wiertnictwo, Nafta, Gaz; 2010, 27, 3; 617-627
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drilling large diameter intake wells with cutter bits in loose and weakly consolidated rocks
Autorzy:
Macuda, J.
Macuda, M.
Powiązania:
https://bibliotekanauki.pl/articles/298815.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
cutter bit
drilling
reverse mud circulation
large diameter wells
hydrogeological well
intake well
Opis:
Most of the useful aquifers in Poland occur in the Quaternary and Tertiary horizons, which are deposited at a depth of tens to hundreds of meters. Owing to the need of providing large quantities of water for municipal and industrial purposes, the aquifers are more and more frequently opened with large diameter wells of various designs. Such wells are mostly drilled with the rotary method with reverse mud circulation with the use of various bits. The Quaternary and Tertiary strata abound in loose and weakly consolidated rocks therefore cutter bits are predominantly used. They allow for high rates of drilling and shorter time of drilling of the well. This significantly influences the negative influence of drilling mud on the near screen zone of the aquifer and better hydraulic properties of the well. Drillability tests were performed with cutter bits of 0.86 and 0.67 m diameter for providing high rates of drilling of large diameter intake wells in loose and weakly consolidated rocks. The research was made for measurement sections 0.5 to 1.0 m long, and each of them was drilled at con- stant rotational velocity and axial weight on bit. Prior to the drillability tests the limitation of weight on bit and rotational velocity of bit imposed by the technical characteristic of Prakla B50 rig, strength of the string and butter bit were established. Various regression models were analyzed for the sake of finding a dependence between drilling rate and axial weight on bit and rotational velocity of bit for particular macroscopically homogeneous layers. The best results were obtained for the exponent model illustrating the influence of axial weight on bit and rotational velocity of bit on the drilling rate, which has been proved by the calculated regression coefficients and statistical parameters.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 1; 23-30
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The technical and technological aspects of commissioning a new intake wells
Autorzy:
Macuda, J.
Styrkowiec, E.
Powiązania:
https://bibliotekanauki.pl/articles/298953.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
drilled well
technical condition of well
hydraulic efficiency
diagnostics of wells
quality of drilling
Opis:
Correctly performed intake wells are a warranty of long and efficient exploitation of the object. A number of important factors are involved, starting from the correct technology of drilling to proper supervision of the investor and control of realization of particular stages of work. These factors are typical of each stage of the investment process, from the stage of determining project requirements, quality of drilling to commissioning of the well. For this reason it is extremely important for the investor to establish the requirements and technical criteria which will be presented to the authors of the geological project and potential performer of the well. Geological works can be successfully verified with available diagnostic techniques, thanks to which the quality of performance can be recognized, make the contractor remove construction failures and improve the efficiency of hydraulic well before final commissioning. The necessity of performing such an analyses should be included in the budget of the planned well.Properly defined technical condition of the drilled well and evaluation of its hydraulic efficiency, being a basis for commissioning, allows the designers to select rational parameters of production and elongate a well’s life.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 3; 641-649
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie związków powierzchniowo czynnych dla selektywnej izolacji wody w zawodnionych odwiertach eksploatacyjnych
Application of surfaceactive compounds for selective water insulation in watered production wells
Autorzy:
Jewulski, J.
Zagrajczuk, D.
Powiązania:
https://bibliotekanauki.pl/articles/300461.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
eksploatacja
odwiert
hydrofobizacja
exploitation
well
hydrophobization
Opis:
W artykule zamieszczono podstawy teoretyczne dotyczące zastosowania związków powierzchniowo czynnych dla selektywnej izolacji wody. Przedstawiono badania laboratoryjne zmiany przepuszczalności efektywnej ośrodka porowatego dla wody i ropy pod wpływem hydrofobizacji jego powierzchni. Badania laboratoryjne zostały wykonane dla różnych ośrodków porowatych (piasek kwarcowy oraz piasek wapienny). Przy badaniu zmian przepuszczalności efektywnej tych ośrodków dla wody zastosowano roztwory Sulfapolu E-20 i Rokanolu DB-7 natomiast zmiany przepuszczalności efektywnej dla ropy wykonano z zastosowaniem Sulfapolu E-20. Pomiary zostały przeprowadzone dla różnych koncentracji związku powierzchniowo czynnego w różnych temperaturach. W końcowej części artykułu przedstawiono analizę wyników badań.
In paper theoretical background about application of surfaceactive compounds for selective water insulation is presented. Laboratory investigation of porous rock effective permeability changes caused by surface hydrophobization results are shown. Analysis was done for different rock (quartz-sand and calcareous-sand). Sulfapol E-20 and Rokanol DB-7 were used for water effective permeability changes analysis, Sulfapol E-20 was used for oil effective permeability changes analysis. Measurements were done for different surfactants concentration and temperatures. Results analysis was done.
Źródło:
Wiertnictwo, Nafta, Gaz; 2009, 26, 1--2; 185-193
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie hydrofobizacji w celu selektywnej izolacji wody w zawodnionych odwiertach eksploatacyjnych
Application of hydrophobization for selective water cuting in wells
Autorzy:
Jewulski, J.
Zagrajczuk, D.
Powiązania:
https://bibliotekanauki.pl/articles/300233.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
eksploatacja
odwierty
hydrofobizacja
exploitation
well
hydrophobization
Opis:
W artykule zamieszczono podstawy teoretyczne procesów hydrofobizacji ośrodków porowatych. Przedstawiono badania laboratoryjne zmiany przepuszczalności efektywnej ośrodka porowatego dla wody pod wpływem hydrofobizacji jego powierzchni. Badania laboratoryjne zostały wykonane dla różnych ośrodków porowatych ( piasek kwarcowy oraz piasek węglanowy) z zastosowaniem Sulfapolu E-20. Pomiary zostały przeprowadzone dla różnych koncentracji związku powierzchniowo czynnego w trzech różnych temperaturach. W końcowej części artykułu przedstawiono analizę wyników badań.
In this paper, the theoretical background of hydrophobization process in porous media was shown. The results of laboratory research of porous medium effective permeability dependence on its surface hydrophobization were presented. Analysis was done for different kind of porous medium (quartz sand and calcareous sand) using Sulfapol E-20. Influence of surfactant concentration and temperature was analyzed.
Źródło:
Wiertnictwo, Nafta, Gaz; 2008, 25, 2; 317-322
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palynofacies analysis of Ida-4 well, Niger Delta Basin, Nigeria
Autorzy:
Chukwuma-Orji, Jacinta Nkiru
Okosun, Edward Agboneni
Gana, Funmilayo Daramola
Powiązania:
https://bibliotekanauki.pl/articles/184404.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
palynofacies
paleoenvironment
palynostratigraphic zone
Ida-4 well
Opis:
Palynofacies analyses of the strata penetrated by Ida-4 wells were carried out with the aim of studying the stratigraphic sequence penetrated by the well in order to establish palynostratigraphic zones, relative age and the paleoenvironment of deposition. Fifty ditch cutting samples within the interval of 2179–3523 m were analyzed. The acid methods of sample preparation for palynofacies analyses were followed. The result of the analyses yielded low to abundant occurrences of pollen and spores with an abundance of small, medium and large sizes of palynomacerals 1 and 2, few occurrences of palynomacerals 3 and 4. The lithology consists of the alternation of shale and sandstone units with few intercalations of argillaceous sandstone units, indicating that the studied interval belongs to the Agbada Formation. The studied intervals were dated to the middle Miocene to late Miocene, based on the recovered age diagnostic marker species such as Zonocostatites ramonae, Multiareolites formosus, Verrutricolporites rotundiporus, Crassoretitriletes vanraadshoveni and Racemonocolpites hians. Two interval range palynostratigraphic zones: Multiareolites formosus – Zonocostatites ramonae, Verrutricolporites rotundiporus - Crassoretitriletes vanraadshoveni and a taxon range zone: Ainipollinite verus zone were proposed. Paleoenvironmental interpretation was based on the palynofacies association and the lithology which revealed that the stratigraphic interval studied was deposited in the Coastal-deltaic (marginal marine) environments.
Źródło:
Geology, Geophysics and Environment; 2019, 45, 3; 219-230
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Brown field rehabilitation success through an effective project management system
Autorzy:
Sasu, R.
Tataru, A.
Powiązania:
https://bibliotekanauki.pl/articles/298699.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Brown Field
well rehabilitation
project management systems
Opis:
Laslau Mare is a mature gas field in Transylvania Basin. The field exploitation began in 1975 and has been operated since then by Romgaz. In 2004 Romgaz entered into an Association agreement with Schlumberger to rehabilitate Laslau Mare field. Association’s main goals for project rehabilitation has been maximization of field potential by increasing gas production and reservoir ultimate recovery factor. The incremental production, defined as the additional gas volume obtained above a production baseline negotiated at project inception is the key objective of Association. According to Project Management Body of Knowledge (PMBOK®) framework from the Project Management Institute (PMI), the project management breaks in processes groups, knowledge area and professional and social responsibility all of them being integrated in a system approach. This paper examines key aspects of the project management system processes, adapted to the oil and gas industry and implemented in our project to meet and exceed project goals.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 2; 577-586
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on cement recipes for CCS application
Autorzy:
Szczesiul, P.
Paluch, M.
Złotkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/299022.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
CO2 sequestration
CCS application
cementing well
Opis:
The technology of CO2 sequestration is connected with the necessity of drilling wells, which construction is adapted to aggressive CO2 rich environment. Recipes of cement slurries, used nowadays in carbohydrates production wells, are prepared without considering corrosion occurrence caused by affection of acidic environments originating from carbonate acid radicals. Although increased resistance to sulfates is typical for these cements, this does not guarantee any resistance to corrosive effects of CO2. Density, fluidity, filtration, Marsh Funnel viscosity and rheological parameters measurements (with a twelve‑ranged viscometer FANN) were carried out. Using Rheosolution Software, a proper rheological model for each recipe was matched. Corrosive effect on cement rock was obtained through keeping samples in pressure tanks containing compressed CO2 for the period of 180 and 360 days. Directly after taking the samples out of the tanks, flexural and compressive strength tests were carried out with the use of hydraulic press. The results were compared and differences between the samples from CO2 and samples taken from water environment according to API recommendations were presented. The corrosion effect on the samples from both environments was presented with microscopic images. Lengthening of the slurry thickening time and improvement of the slurry fluidity were obtained thanks to adding the third generation superplastifier produced by BASF Polska Sp. z o.o. As a research result a slurry recipe of the best strength has been developed. It can be used for proper sealing in CO2 sequestration well technology
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 4; 443-448
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
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