Open AccessHARD-TO-RECOVER OIL RESERVES IN THE DOME PART OF THE STRUCTURE
Author(s) -
F. N. Zosimov,
S. K. Turenko
Publication year - 2015
Publication title -
izvestiâ vysših učebnyh zavedenij. neftʹ i gaz
Language(s) - English
Resource type - Journals
ISSN - 0445-0108
DOI - 10.31660/0445-0108-2015-3-15-19
Subject(s) - dome (geology) , overpressure , petroleum engineering , geology , oil reserves , water flooding , petroleum , geomorphology , paleontology , physics , thermodynamics
A new model of hard-to-recover oil reserves generation in the dome part of the structure is described. It is shown that in the dome part of the structure thin pore canals are saturated with oil thanks to high overpressure, while in the transition and undersaturated zones the same size canals are filled with water. When producing oil by contour water-flooding the water effectively displaces the oil from large pore canals, but fine pores remain oil-saturated. It is shown that to recover oil from thin pore canals some new methods of the formation stimulation should be developed.