A dual-well system and thermal-gas-chemical formation treatment: Combined methods for high-viscosity oil production

Imran Ali, S. I. Gubanov, K. A. Ovchinnikov, V. A. Olkhovskaya, G. A. Kovaleva, Evgeny Galunin, Alexey Tkachev

Research output: Contribution to journalArticlepeer-review

Abstract

The article deals with the possibility of increasing the flow rate of high-viscosity oil by injecting a binary chemical composition into a dual-well system well. The interaction of the main chemical reagent with the initiator of the exothermic reaction contributes to the heating of the formation within the radius of the bottom hole of the vertical shaft. Due to the risk of irreversible changes in the structure and reduced rock permeability in the contact area of reagents, oil is extracted through the side shaft. Theoretically and experimentally it has been proven that the optimal reservoir temperature at the tapping point can be reached due to the rheological characteristics of high-viscosity oil. The results of hydrodynamic modeling of well production rate and reservoir thermal field for the proposed object of the impact are presented. The optimal parameters of the technological mode are determined and it is confirmed that the criterion for the efficiency of the combined method is the oil production intensification. The study was carried out at the B2 reservoir of the Bobrikovian horizon in the Samara region (Russia).

Original languageEnglish
Article number107554
JournalJournal of Petroleum Science and Engineering
Volume194
DOIs
Publication statusPublished - Nov 2020

Keywords

  • Dual-well system
  • High-viscosity oil
  • Model of nonlinear viscoplastic flow
  • Rheological characteristics of the oil
  • Thermal-gas-chemical formation treatment

ASJC Scopus subject areas

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology

Fingerprint Dive into the research topics of 'A dual-well system and thermal-gas-chemical formation treatment: Combined methods for high-viscosity oil production'. Together they form a unique fingerprint.

Cite this