An experimental method for predicting the composition and properties of a produced fluid under the conditions of a two-phase filtration of a gas-liquid mixture during field development for depletion

Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy


Release:

2019, Vol. 5. №4 (20)

Title: 
An experimental method for predicting the composition and properties of a produced fluid under the conditions of a two-phase filtration of a gas-liquid mixture during field development for depletion


For citation: Zanochuev S. A., Shabarov A. B. 2019. “An experimental method for predicting the composition and properties of a produced fluid under the conditions of a two-phase filtration of a gas-liquid mixture during field development for depletion”. Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy, vol. 5, no 4 (20), pp. 21-36. DOI: 10.21684/2411-7978-2019-5-4-21-36

About the authors:

Sergey A. Zanochuev, Cand. Sci. (Tech.), Head of the Department of Research of Properties of Formation Fluids, Tyumen Oil Research Center; ORCID, szanochuev@mail.ru

Aleksandr B. Shabarov, Dr. Sci. (Tech.), Professor, Department of Applied and Technical Physics, Institute of Physics and Technology, University of Tyumen; eLibrary AuthorID, ORCID, ResearcherID, ScopusID, kaf_mms@utmn.ru

Abstract:

During the production of oil and condensate from an oil-gas condensate field, there is an issue of correct accounting for and writing off reserves. The existing indirect methods of oil content determination in well production do not allow performing hydrodynamic calculations in real formation conditions with a high degree of certainty.
This article proposes the experimental method for predicting the composition and properties of production fluid when the liquid phase (precipitated condensate or oil) is also filtered together with the gas phase in the reservoir under thermobaric reservoir conditions.
The authors have adapted this method on the base of the real oilfield reservoir fluid as well as the model data of relative permeability. The proposed approach helped in receiving the experimental data on the changes in the current gas saturation, as well as the data on the changes in the composition and properties of the produced fluid during the field development intended for depletion. The research has established that under the conditions of two-phase filtration, the reservoir gas saturation increases while the reservoir pressure declines during the reservoir operation.
The proposed methodological approach to the study of two-phase reservoir systems can aid in developing technologies for solving the problems of separate production accounting, as well as in implementing the methods for increasing the hydrocarbon recovery.

References:

  1. Dolgushin N. V. 2004. Terminology and the Main Provisions of the Technology of Gas Condensate Research. Moscow: Nedra-Biznestsentr. [In Russian]

  2. Klimenko S. S., Anischenko L. A. 2010. “Features of naftidogenesis in the Timan-Pechora oil and gas basin”. Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences, no 2 (2), pp. 61-69. [In Russian]

  3. Lugay D. V., Lapshin V. I., Volkov A. N., Shafiev I. M. 2011. “Improving the methods of experimental study of phase transformations of gas condensate systems”. In: Grigoriev B. A. (ed.). Actual problems of studying reservoir systems of hydrocarbon deposits: a collection scientific articles in 2 vols. Vol. 1, pp. 103-119. Moscow: Gazprom VNIIGAZ. [In Russian]

  4. Mamuna V. N., Trebin G. F., Ulyaninsky B. V. 1960. Experimental Study of Reservoir Oils. Moscow: Gosinti. [In Russian]

  5. Parfenova N. M., Kosyakova L. S., Artemyev V. Yu. et al. 2012. “Physical and chemical characteristics of condensates of the Chayandinsky oil and gas condensate field”. Vesti gazovoy nauki, no 3 (11), pp. 20-35. [In Russian]

  6. Samoilov A. S., Glumov D. N., Gerasimenko S. A., Zhuravlev V. V. 2013. “Development of technological solutions to improve the operational efficiency of a multilayer object of the Yuzhno-Khadyryakhinskoye field”. Oil and Gas Business, vol. 11, no 4, pp. 13-24. [In Russian]

  7. Shabarov A. B., Zanochuev S. A. 2015. “Calculation method of component and phase composition of gas condensate mixture in near-wellbore reservoir”. Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy, vol. 1, no 1 (1), pp. 7-21. [In Russian]