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ISSN 0132-2222 Scientific-technical journal AND COMMUNICATION IN OIL INDUSTRY published since 1973 November 2017 ¹ 11 12 issues per year
CONTENÒS |
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INFORMATIONAL, MEASURING, EXPERT, EDUCATIONAL SYSTEMS |
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MATHEMATICAL MODELING AND SOFTWARE |
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Magzyanov I.R., Kulikov A.N. A methodology of probabilistic estimation in the task of identification of a formation non-operating intervals (p. 16‑20) |
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Ilyasov A.M., Magzyanov I.R. Steady-state turbulent flow of the traced liquid in the main fracture (p. 21‑25) |
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Information on the articles (p. 38‑41) |
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Information on the articles |
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DEVELOPMENT AND
AUTOMATION OF THE METHOD
D.I. Polukeev, A.N. Lesnoy, D.R. Maganov, A.V. Nekrasov, M.M. Vyatchinin
LLC "LUKOIL−Engineering" 3, bld. 1, Pokrovskiy boulevard, Moscow, 127055, Russian Federation, tel.: (495) 983-24-11, å-mail: LUKOIL-Engin@lukoil.com
The article presents the concept of the integrated formation and control of the geological-technical measures (GTM) execution in the sections of the objects under development at the enterprises and in general at the LUKOIL Group, which ensures the planned production level. Technological efficiency calculation methodology was developed with the purpose of establishing common rules and formats for technological assessment of geological and technical measures for making managerial decisions and ensuring planning of measures aimed at increasing the efficiency of development of oil and gas fields.
Keywords: geological-technical measures (GTM); coefficient of the base flow-rate fall; technological efficiency; coefficient of flow-rate growth change.
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MODELING IN THE PROBLEM
OF GAS INDUSTRIAL PRODUCTION RECOVERY
Nikolay Alexeevich Solovjov, Dr. Sc. (technical), Professor, Head of the Department, Artem Faatovich Valeev, Cand. Sc. (technical), senior lecturer, Alexey Olegovich Salikhov, master student
Orenburg State University 13, Pobeda prosp., Orenburg, 460018, Russian Federation, e-mail: vafw@ya.ru, aleks-salikhov@yandex.ru
The urgency of the problem is caused by the fact that gas production at the late stage of development of gas condensate fields is accompanied by a reservoir pressure drop and gas wells water-flooding, while the substantiation of the possibility to restore the commercial production from water-flooded gas wells requires the development of the existing information and software support that is the purpose of this article. The concept of improving the technological modes of operation of the formation-well-pipeline (FWP) system in conditions of wells water-flooding is proposed. The technical solutions are substantiated. They are the following ones: equipping of a gas well with the controlled pumping out of a formation fluid; information-measuring system controlling the dynamic level of formation fluid in the well annulus. The mathematical apparatus of modeling of the FWP system technological processes is developed with account of the formation fluid controlled discharge by pumps. The information and software for the system that simulates the technology of gas production from water-flooded wells with the controlled pumping out of the formation fluid was developed to substantiate the possibility of their commercial operation restoration.
Keywords: water-flooded gas well; system of formation-well-pipeline; controlled pumping out of formation fluid; technological characteristics; simulation model; software.
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A MATHEMATICAL MODEL OF
THE TRACED LIQUID FLOW
Aidar Martisovich Ilyasov, Cand. Sc. (physics-mathematics), leading specialist, Tagir Ahmetsultanovich Ismagilov, Cand. Sc. (technical), General Manager, Ilgiz Maratovich Ganiev, Cand. Sc. (chemistry), Head of the Department, Ilshat Ralifovich Magzyanov, researcher
LLC "RN–UfaNIPIneft" 3/1, Bekhterev str., Ufa, 450103, Russian Federation, tel.: 8 (347) 293-60-10, ext. 2519, 2372, 2316, 2312, e-mail: IlyasovAM@ufanipi.ru, IsmagilovTA@ufanipi.ru, ganievim@ufanipi.ru, fox@ufanipi.ru
A mathematical model of the stationary laminar flow of a traced liquid in the main vertical fracture in the hydraulic approximation is constructed. An exact solution of the corresponding system of equations is obtained. The model calculations based on the obtained formulas made it possible to determine the degree of the influence of a fracture width and its walls permeability on the time of the indicator fluid arrival in the production well. It is shown that the fracture estimated volume can be many times different, if the liquid leakage into the formation through the walls of the fracture is not accounted for.
Keywords: water-proofing; tracer studies; fracture.
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A METHODOLOGY OF
PROBABILISTIC ESTIMATION IN THE TASK
I.R. Magzyanov, researcher
LLC "RN–UfaNIPIneft" 3/1, Bekhterev str., Ufa, 450103, Russian Federation, tel.: 8 (347) 293-60-10, ext. 2312, e-mail: fox@ufanipi.ru
A.N. Kulikov, Cand. Sc. (technical)
Gubkin Russian State University of Oil and Gas (National Research University, NRU) 65, Leninsky prosp., Moscow, 119991, Russian Federation
The task of non-working intervals identification during the joint development of complicatedly-composed objects based on the probabilistic model of images recognition is considered. A methodology of frequency distribution smoothing is proposed. The results of the method approbation are given on the example of the real field data.
Keywords: probability; probabilistic model; images recognition.
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STEADY-STATE TURBULENT
FLOW OF THE TRACED LIQUID
Aidar Martisovich Ilyasov, Cand. Sc. (physics-mathematics), leading specialist, Ilshat Ralifovich Magzyanov, researcher
LLC "RN–UfaNIPIneft" 3/1, Bekhterev str., Ufa, 450103, Russian Federation, tel.: 8 (347) 293-60-10, ext. 2519, 2312, e-mail: IlyasovAM@ufanipi.ru, fox@ufanipi.ru
A mathematical model is constructed for the stationary turbulent flow of the traced liquid in a main vertical fracture in the hydraulic approximation. The exact solution of the corresponding system of equations is obtained. The modeling calculations based on the formulas obtained made it possible to estimate the time of the indicator fluid arrival in the production well in case of the fracture’s different widths and its walls permeability under the conditions of the established zones of the flow turbulent regime along the fracture.
Keywords: water-proof; tracer studies; turbulent flow in a fracture.
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THE NECESSITY AND
FEASIBILITY OF AERODYNAMIC ELEMENTS USE
Vladimir Nikolaevich Esaulenko, Dr. Sc. (technology), Professor, Vladimir Ilich Kantemirov, Cand. Sc. (technical), assistant professor
Astrakhan State Technical University 16, Tatishchev str., Astrakhan, 414056, Russian Federation, tel.: (8512) 61-42-31, e-mail: atp@astu.org
The possibility of using the aerodynamic elements in the telemetry system downhole unit is considered. A theoretical substantiation of the operating principle of a typical jet element as a base one to build measuring transducers of downhole parameters is presented. A mathematical model and results of experimental studying of the sensor of a borehole curvature zenith angle is presented. The process of filling and emptying of the jet generator vessels, based on the Coanda effect, is analyzed. The process of gas flow in the subcritical and supercritical pressure areas is discussed. and simulated. The processes, occurring during the jet generator operation in a well bottom, are researched. The analytical dependence of the frequency output oscillations on the time of filling and emptying of the jet generator receiving chamber is derived. The resulting analytical dependence is the basis for a mathematical model construction when developing various downhole sensors. The theoretical and experimental study of the developed zenith angle sensor of a borehole curvature is submitted.
Keywords: well drilling; aerodynamic element; Coanda effect; typical jet generator; filling; emptying; camera; frequency oscillation; sensor; zenith angle.
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MATHEMATICAL MODELING OF
FILTRATION OF OIL FORMATION DATA
B.V. Semenov, V.F. Svatov, S.P. Semenova
Tyumen Industrial University 38, Volodarsky str., Tyumen, 625000, Russian Federation, tel.: 8 (922) 485-77-75, e-mail: semenov062@ya.ru
The article presents the method of successive random additions for the simulation of intermediate values between wells the data from which are obtained from fields by special geographical probes. The basic idea is to identify the dependencies between the received data and the further calculation in the form of pseudovalues that can be used in further researches. The data fractal filtering allows to simulate the pseudo-random values based on the correlated values of the data obtained, mimicking the erratic movement. This approach will allow more detailed study of the petrophysical characteristics of a reservoir individual areas.
Keywords: fractal; modeling; borehole; program; model; method; algorithm; reservoir; shale rocks; sandstone.
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JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY" |