- Tytuł:
-
Analiza efektów zastosowania chemicznych metod trzecich wspomaganego wydobycia ropy na przykładzie złoża krajowego oparta na modelowaniu numerycznym
Analysis of the effects of tertiary EOR methods applied to a domestic oil reservoir from numerical modelling - Autorzy:
-
Szott, Wiesław
Miłek, Krzysztof - Powiązania:
- https://bibliotekanauki.pl/articles/1834389.pdf
- Data publikacji:
- 2020
- Wydawca:
- Instytut Nafty i Gazu - Państwowy Instytut Badawczy
- Tematy:
-
wspomagane wydobycie ropy
zatłaczanie związków chemicznych
polimery
środki powierzchniowo czynne
symulacje złożowe
mechanizmy wypierania
EOR
chemical flooding
polymers
surfactants
reservoir simulations
displacement mechanisms - Opis:
- The paper presents an analysis of the chemical EOR method utilising waterflooding with the use of a polymer and a surfactant solution. The analyse was carried out using numerical modelling of oil displacement processes from porous media. This modelling took into account all the significant phenomena occurring during the flow of the above fluids in the porous medium. It included polymer and surfactant adsorption on the surface of the rock pores; the impact of polymer concentration and shear rate on the effective viscosity of the displacing fluid; the effect of polymer adsorption on the reduction of permeability for reservoir fluids; the reduction of the porosity available for polymer particles; the modification of the interfacial tension in the aqueous solutions – oil system caused by the presence of a surfactant. As a result, the oil displacement mechanism with the injected solution becomes complex, i.e., in addition to the standard non-miscible displacement component, it reveals a miscible component depending on the specific properties of the system: displaced fluid – displacing fluid – reservoir rock. Due to the complex nature of the above phenomena, there is a need to determine the quantitative relationships for the significant properties of chemicals on their type and concentration in the displacing fluid. These relationships are obtained from modelling oil displacement processes in simplified systems of reservoir rock samples. For this purpose, models of laboratory tests were constructed for a system of drilling cores, on which the results of displacement tests were reproduced. This allowed the quantitative characteristics of displacement mechanisms to be determined and the correctness of the used approach to be verified. The oil displacement mechanisms characterized in this way were implemented in the numerical model of a real oil reservoir. The results of simulations for crude oil depletion using the above methods have been obtained in this model, showing their beneficial effect on the degree of depletion of oil resources. The dependents of production results on various operational parameters were obtained allowing to assess the effectiveness of the analysed methods for enhanced oil recovery.
- Źródło:
-
Nafta-Gaz; 2020, 76, 4; 249-260
0867-8871 - Pojawia się w:
- Nafta-Gaz
- Dostawca treści:
- Biblioteka Nauki
Artykuł