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Wyszukujesz frazę "fracturing fluids" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Nitrogen and carbon dioxide fracturing fluids for the stimulation of unconventional shale plays
Autorzy:
Palmer, C.
Sito, Z.
Powiązania:
https://bibliotekanauki.pl/articles/299070.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
nitrogen
carbon dioxide
fracturing fluids
shale gas
Opis:
With the International Energy Agency (IEA) projecting that the global demand for natural gas to increase by 50% from 2010 to 2035, the exploration of unconventional gas reserves (e.g. shale gas, tight gas and coal bed methane) will gain increasing importance as conventional gas reserves become more depleted. To enhance the production of unconventional gas and oil, water-based fracturing fluids are extensively used for the stimulation of North American shale plays because they are inexpensive and offer excellent proppant transport into the fracture when used with gelled polymers. However, in circumstances where water-based fracturing fluids are unsuitable due to concerns related to water sensitivity and clay swelling, alternative fracturing fluids are used such as nitrogen and carbon dioxide treatments. Nitrogen and carbon dioxide fracturing fluids are particularly advantageous in depleted and shallow formations because they offer a non-damaging effect around the fracture, rapid cleanup of flowback fluid, and reduced water requirements compared to conventional water-based fracturing fluids. Much research has been published about water-based fracture treatments, therefore, this review paper considers the use of nitrogen and carbon dioxide fracturing fluids used for the stimulation of unconventional shale plays, mainly in North America. By analysing selected literatures studies, this review paper summarises the utilization of the various types of nitrogen and carbon dioxide treatments (i.e. straight gas, foam, energized, cryogenic liquids) across various shale plays such as the Montney play, the Devonian play, and the Marcellus play. The paper further identifies the major benefits and challenges of nitrogen and carbon dioxide treatments documented by well operators, which will facilitate knowledge transfer about the applicability of nitrogen and carbon dioxide fracturing fluids.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 1; 191-198
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of fracturing fluid system, effect of rock mechanical properties on fluid selection
Autorzy:
Laurain, A.
Powiązania:
https://bibliotekanauki.pl/articles/298687.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
fracturing fluids
rock mechanical properties
shale gas reservoirs
Opis:
Hydraulic fracturing treatments of shale gas reservoirs is pumping process in which millions of gallons of fracturing fluids mixed with proppant materials and thickening agents are pumped into the target shale formation. Fluids are used to create the fractures in the formation and to carry a propping agent which is deposited in the induced fractures to keep them from closing up. Type and percentage of chemical additives that used in a typical fracture treatment varies depending on the conditions of well being fractured. A series of chemical additives are selected to impart a predictable set of properties of the fluid, including viscosity, friction, formation-compatibility, and fluid-loss control. Each component in fracturing fluids serves a specific, engineered purpose and geological structure of rock. The properties of fracturing fluid are very important in the creation and propagation of the fracture. For suc-cessful stimulation fracturing fluid mustto have certain chemical and physical properties. Study of the properties fracturing fluids has ahuge role inthe processes of shale gas extraction. In scientific literature indicates that hydraulic fracturing fluid performance became a prevalent research topic in the late 1980s and the 1990s. The majority of literature pertaining to fracturing fluids related to their operational efficiency and classification. Some of the existing literature offer information regarding the basic chemical components present in most of these fluids. This paper will discuss types of fracturing fluids and it components that may be used for hydraulic fracturing. Comprehensive history of the evolution of hydraulic fracturing fluids in the oil and gas industry plays a significant part in research. This work summarizes requests for fracturing fluids. In addition, this paper shows effect of rock mechanical properties on fracturing fluid selection.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 1; 167-178
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of proppant concentration on rheological parameters of slick water
Autorzy:
Gadji, S. O.
Knez, D.
Powiązania:
https://bibliotekanauki.pl/articles/299002.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
slick water
fracturing fluids
proppant
propant
gładź cementowa
Opis:
Proppant concentration is one of the main parameters used to design, characterize and describe hydraulic fracturing process, as well as properties of proppant transport and fracturing fluid such as viscosity and viscoelasticity. Low viscosity fracturing fluids decrease proppant transport capability while high viscosity fracturing fluids increase pumping time, proppant transport properties and also the fracture width. A larger proppant size leads to a high permeability of the reservoirs while applying a low stress closure but it requires enough large fracture width to be transported during the process. So combining those parameters in a right way will lead to the achievement of a high performance hydraulic fracturing process. The goal of this paper is to analyze the influence of proppant concentration addition on rheological properties of hydraulic fracturing fluid, using slick water and sand proppant; rheological models are reviewed, and based on the experimental values of different proppant concentrations, the best rheological model describing this process has been chosen based on the best fit curve. A new approach based model is developed in the way of well describing the hydraulic fracturing process. Details are given of the important properties related to hydraulic fracturing fluid. Lab testing results are presented as support to observations made.
Źródło:
AGH Drilling, Oil, Gas; 2012, 29, 2; 355-366
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frac-Pack well stimulation
Symulacja otworowa metodą Frac-Pack
Autorzy:
Moslavac, B.
Pasic, B.
Malnar, M.
Powiązania:
https://bibliotekanauki.pl/articles/300459.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Frac-Pack
symulacja otworowa
płyny do szczelinowania
podsadzka
TSO
udostępnianie
well stimulation
fracturing fluids
proppant
completions
Opis:
During the hydrocarbon production, the formation sand movement has a frequent negative influx to the process because of its hazardous nature. Gravel pack placement is a common well treatment procedure for prevention of formation sand flow to the wellbore. This method is used in petroleum engineering industrial practice since 1950s. Based on it as a conventional technique Frac-Pack method came up as a new modern technology of sand control containing gravel pack placement and hydraulic fracturing all-in-one procedure. In Frac-Pack application, the appropriate viscosified fluid and proppant selection has a key role for achievement of desired fracture height, length and width. Fracture dimensions are controlled by TSO (Tip-Screenout) fracturing procedure. In this paper basic types of proppant are presented as well as resin coated sand, which improves packing of fracture with proppant. Numerous and various Frac-Pack fluids able to resist the high temperature and pressure are described. Downhole Frac-Pack equipment is also presented. Paper also contains a field example of Frac-Pack application performed on one of the Adriatic offshore gas fields, Republic of Croatia.
W trakcie wydobywania węglowodorów mamy często do czynienia z negatywnym i niebezpiecznym zjawiskiem przemieszczania się piasku. Zastosowanie pakera żwirowego stanowi podstawowy sposób zabezpieczenia przed napływem piasku do otworu. Metodę tę stosuje się w inżynierii naftowej od lat pięćdziesiątych ubiegłego stulecia. Na tej podstawie opracowano tradycyjna technikę Frac-Pack jako nowoczesną metodę kontroli zapiaszczenia za pomocą połączonego zastosowania pakera żwirowego i szczelinowania hydraulicznego. W przypadku Frac-Pack płyny o odpowiedniej lepkości i właściwie dobranych materiałach podsadzkowych odgrywają kluczową rolę w osiągnięciu wymaganej wysokości, długości i szerokości szczeliny. Rozmiary szczelin kontrolowane są metodą szczelinowania TSO (Tip-Screenout). W artykule przedstawiono podstawowe rodzaje podsadzki oraz piasek z powłoką żywicową, które wzmagają działanie podsadzki. Opisano różnorodne płyny Frac-Pack odporne na wysoką temperaturę i ciśnienie. Przedstawiono także wgłębne wyposażenie Frac-Pack. W artykule pokazano przykładowe zastosowanie praktyczne Frac-Pack na jednym z chorwackich złóż gazu ziemnego na Adriatyku.
Źródło:
Wiertnictwo, Nafta, Gaz; 2010, 27, 1--2; 293-306
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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