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ISSN 0207-2351 Scientific-technical journal published since 1965 August 2015 ¹ 8 12 issues per year
CONTENÒS |
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Lachkov A.G. JSC ″VNIIOENG″ celebrates its 50th anniversary! (p. B-I) |
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DEVELOPMENT OF OIL AND GAS-OIL FIELDS |
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METHODS OF PRODUCING EFFECT ON A DEPOSIT AND RAISING OIL RECOVERY |
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TECHNIQUE AND TECHNOLOGY OF OIL PRODUCTION |
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GATHERING, TRANSPORTATION AND PREPARATION OF OIL, GAS AND WATER |
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Information on the articles (p. 60-66) |
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Information on the articles |
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JSC ″VNIIOENG″ CELEBRATES ITS 50TH ANNIVERSARY (p. B)
Alexander Grigorievich Lachkov
JSC ″VNIIOENG″ 14, bld. 2, Nametkina str., 117420, Moscow, Russian Federation, e-mail: vniioeng@mcn.ru
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DEVELOPMENT OF THE INFLOW ANALYTICAL MODEL OF A WELL DRAINING SEVERAL FORMATIONS WITH VARIOUS RESERVOIR PROPERTIES (ð. 5)
Yury Alexansrovich Dolgikh, Viktor Pavlovich Tyurin, Alexander Nikolaevich Nesterenko
LLC "TyumenNIIgiprogaz" 2, Vorovsky str., 625019, Tyumen, Russian Federation, e-mail: DolgikhYA@tngg.ru
Today one of the key tools of data interpretation obtained while a well hydrodynamic testing is the software developed by "Kappa Ecrin Saphir". However, the analytical methods of the software do not allow receiving the pressure sink dynamic from well in the distance coordinates, including commingling operation. Double porosity model is used for multi-zone formations in the time coordinate. Thus, the goal is development of a software application for analytical calculations in the time and distance coordinates.
Key words: hydrodynamic well testing; transient flow equation; fluids radiaflow; unsteady-state flow; pseudo-steady-state flow; analytical modeling.
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DEVELOPMENT OF PREDICTIVE MODELS FOR ESTIMATION OF OIL MOBILITY COEFFICIENT WITH ACCOUNT OF FACIES CONDITIONS (ON THE EXAMPLE OF Bsh FORMATION OF KOKUYSKIY DEPOSIT) (ð. 11)
Vladislav Ignatievich Galkin, Artem Alexandrovich Efimov
Federal State-Funded Educational Institution of Higher Professional Education "Perm National Research Polytechnic University" (PNRPU) 29, Komsomolsky prosp., 614000, Perm krai, Perm, Russian Federation, tel./fax: (342) 219-83-14, å-mail: vgalkin@pstu.ru, lpfi@pstu.ru
While oilfields geological modeling, the sediments’ facial specific features are sometimes not fully taken into account. This is especially true for collectors of carbonate type. The research object of this study is Bsh formation of Kokuyskiy deposit located in the eastern part of the East-European platform. Some prediction model for estimation of oil mobility coefficient is developed for the formation with account of facies variability. While conducting the researches the following problems were successively solved: according to the results of the core material defined sediments facies were determined on the basis of the core description results, reservoir characteristics were studied within the allocated facies zones, some statistical model was developed to predict oil mobility coefficient with account of collectors’ facies variability. Analysis of the reservoir characteristics of Bsh formation allowed justifying presence of the deposit areas within the boundaries of the allocated facies zones that refer to the two classes, namely, collector’s movable part and stagnant zones. Development of statistical models, inclusion of the set of the studied parameters to the collector’s movable part required application of a set of methods of step-by-step linear discriminatory analysis and conditional complex probabilities. The obtained geological-mathematical model allowed predicting values of oil mobility coefficient within the boundaries of Bashkirian deposit sectors of Kokuyskiy field on the basis of the core samples facies analysis involving the data of petro-physical studies.
Key words: facies specific features; porosity; mobility coefficient; carbonate deposits; Bashkirsky stage; statistical model.
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MODERNIZATION OF UNDERGROUND-SURFACE THERMAL MINING METHOD OF HEAVY OIL DEVELOPMENT (ð. 16)
Danil Yurievich Sednev, Sergey Nikolaevich Krivoshchekov
Federal State-Funded Educational Institution of Higher Professional Education "Perm National Research Polytechnic University" (PNRPU) 29, Komsomolsky prosp., 614000, Perm krai, Perm, Russian Federation, tel./fax: (342) 219-83-14, e-mail: danil.sednev@mail.ru, krivoshchekov@pstu.ru
The article describes oil mines of Jarega deposit, reviews the history of development systems. The problems of development systems are highlighted, solutions are given, some new method of oil development is offered.
Key words: oil mine; development system; underground-surface method; oil-water contact; energy efficiency.
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EXPERIENCE OF YAREGA FIELD DEVELOPMENT BY APPLYING THE THERMAL METHOD FROM THE SURFACE (ð. 18)
Leonid Mikhailovich Ruzin, Ruslan Abdimalikovich Zhangabylov
Ukhta State Technical University 13, Pervomayskaya str., 169300, Ukhta, Komi Republic, Russian Federation, e-mail: lruzin@yandex.ru, ruslan_zhan88@mail.ru
Thermal mining technology has been applied for Yarega field development for more than 40 years. The field includes three structures, namely, Yarega, Lyael and Vezhavozh. Only Yarega area is in commercial development. Part of Yarega area, Lyael and Vezhavozh areas, are located far from the existing mining facilities, that’s why their thermal mining development requires the construction of new production mining facilities (shafts, mines, system of surface and underground structures), which is associated with high capital costs and long period of construction. That’s why new technologies development applied for formations stimulation from the surface are urgent for the fields’ development where there are no mining facilities. The article analyzes the results of experiments that were carried out to test steam-thermal stimulation of Yarega field from the surface. Based on the results of the analysis, new effective technologies are proposed to develop deposits of heavy oil and bitumen. The results of the analysis given in the article can be used while developing heavy oil and bitumen fields.
Key words: high-viscous oil; Yarega field; experimental works; steam-assisted gravity drainage; oil recovery; steam-oil ratio; heterogeneous reservoir.
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PROBLEMS OF NON-LINEARITY OF OIL FILTRATION EQUATIONS IN POROUS MEDIA (ð. 23)
G.I. Kelbaliev
Institute of Catalysis and Non-Organic Chemistry, Azerbaijan National Academy of Sciences 29, Javid prosp., AZ1143, Baku, Republic of Azerbaijan, tel.: (+99450) 320-40-28, e-mail: kkelbaliev@yahoo.com
Ab.G. Rzayev
Institute of Control Systems, Azerbaijan National Academy of Sciences 9, B.Vakhabzade str., AZ1141, Baku, Republic of Azerbaijan, tel.: (+99450) 395-40-08, e-mail: abbas_r@mail.ru
G.R. Mustafayeva, S.R. Rasulov
State Oil Academy of Azerbaijan 34, Azadlyg prosp., AZ1010, Baku, Republic of Azerbaijan, tel.: (+99450) 212-08-35, e-mail: rasulovsakit@gmail.com
The problems of filtration equations use for various fields of change of oil flow regime in porous medium are considered. Various variants of description of oil filtration processes in porous medium and Darcy number depending on Re number are proposed and their application boundaries are determined. The proposed models are compared with reference experimental data and it gives satisfactory results.
Key words: filtration equations; porous medium; applicability of Darcy law; filtration rate; filtration resistance.
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CONTROL OF GAS-WATER EFFECT EFFICIENCY BY FIELD DATA (ð. 26)
R.V. Vafin, T.R. Vafin, M.S. Zaripov
CJSC "Aloil" 63, Engels str., 423930, Bavly-city, Republic of Tatarstan, Russian Federation, tel.: (855) 195-62-65, fax: (855) 195-62-27, å-mail: aloil@tatais.ru
I.Sh. Schekaturova
NPO "Neftegaztechnologia, Ltd." 96/2, Revolutsionnaya str., 450078, Ufa, Republic of Bashkortostan, Russian Federation, tel.: (347) 228-18-75, å-mail: npo@ngt.ru
The article presents field experience of technology application of gas-water effect in conditions of Alexeevsky field. Based on the analysis of injection of gas and water amounts, three zones of efficiency of the discussed method of formation stimulation are identified, the optimal concentration of the gas in the gas-liquid mixture that allow increasing the efficiency of associated gas utilization and reducing the time of water breakthrough to the bottom areas of producing wells are determined.
Key words: gas-water effect; viscosity; associated gas utilization; time of water breakthrough; efficiency.
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PILOT INTRODUCTION OF THE COMPLEX INTENSIFICATION TECHNOLOGY OF OIL PRODUCTION FROM CARBONATE RESERVOIRS (ð. 32)
Yury Veniaminovich Zeigman
Ufa State Petroleum Technological University 1, Kosmonavtov str., 450062, Ufa, Republic of Bashkortostan, Russian Federation
Vitaly Vyacheslavovich Sergeev
Fund "Skolkovo", ANEO HPE "Skolkovo Institute of Science and Technology" 4, the territory of the innovative center "SKOLKOVO", business center "Technopark", 143026, Moscow, Russian Federation, å-mail: vsmyn23@gmail.com
Results of pilot introduction of the complex technology of oil recovery intensification (ORI) from carbonate reservoirs of the Pashninsky oil field are presented in this article. The effect of this technology is reached due to complex treatment of the bottom hole zone by two types of specially selected chemical compositions (invert emulsion solution (IES) and acid composition). These solutions are aimed at restricting water inflows from high-permeable inter-layers and further impact on low-permeable areas of a formation to increase their permeability. During works criteria of wells’ selection for acid treatment with preliminary isolation of IES of fracture-type carbonate and cavernous reservoirs are defined. The instruction of carbonate reservoirs treatment by acid compositions with simultaneous restriction of water inflows with IES is developed. The results of pilot introduction of the complex technology of ORI in Pashninsky oil field proved the double increase of the average daily production rate per one well and 14 % decrease of the product water-flooding in the average.
Key words: pilot introduction; laboratory tests; bottom hole zone treatment; acid composition; invert emulsion solution.
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EFFECT OF APPLICATION OF MATHEMATICAL STATISTIC METHOD FOR PREDICTING TECHNOLOGICAL EFFICIENCY OF FORMATION HYDRAULIC FRACTURING TREATMENT AT JSC "TATNEFT" FIELDS (ð. 37)
Alsu Fagimovna Shakurova, Aigul Fagimovna Shakurova, Rasifa Raisovna Stepanova
"Ufa State Petroleum Technological University", a branch in Oktyabrskiy-city 54a, Devonskaya str., 452620, Oktyabrskiy-city, Republic of Bashkortostan, Russian Federation, e-mail: alsu0017@mail.ru, afagim@mail.ru
The authors of the article made an attempt of updating the methods of experimental data processing having small sample. As the main method of solving the problem, the way regressive equation building in the form of a second degrees polynominal was chosen. It is proved that application of the graduated regressive equation even in conditions of small representation sampling allows accurate predicting technological effect of carrying-out of a formation hydraulic fracturing in Bobrikov and Devonian sediments. This becomes possible on the assumption of the equations building with account of particular geological-field and technological data, matching together with these sediments within each of the above-said producing areas.
Key words: a formation hydraulic fracturing; regressive equation; technological effect; mathematical statistics; efficiency of technology.
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ASSESSMENT AND SELECTION OF THE EFFECTIVE INTERVAL OF GAS-WATER MIXTURE INJECTION INTO A FORMATION (ð. 40)
T.R. Vafin, M.S. Zaripov
CJSC "Aloil" 63, Engels str., 423930, Bavly-city, Republic of Tatarstan, Russian Federation, tel.: (855) 195-62-65, fax: (855) 195-62-27, å-mail: aloil@tatais.ru
A.N. Astakhova, I.Sh. Schekaturova
LLC NPO "Neftegaztechnologia, Ltd." 96/2, Revolutsionnaya str., 450078, Ufa, Republic of Bashkortostan, Russian Federation, tel.: (347) 228-18-75, å-mail: npo@ngt.ru
The article deals with the intervals of gas-water mixture injection into injection wells of Alexeevsky field. Based on the analysis of the profiles’ injectivity, pumping of gas-water mixture into a water-saturated perforated interval is observed. It was proved that injection of gas-water mixture in the oil-saturated area of a formation is more efficient for the collectors and formation fluids properties.
Key words: gas-water effect; perforation interval; injectivity; extra production of oil.
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COMPARATIVE CHARACTERISTIC OF PETROWASHING ABILITY OF ANION SURFACTANTS OF DOMESTIC AND FOREIGN PRODUCTION (ð. 44)
Anastasia Vladimirovna Vashchenko, Indira Rustamovna Mukminova, Konstantin Yuryevich Prochukhan, Yury Anatolyevich Prochukhan
Bashkir State University 32, Zacky Validi str., 450076, Ufa, Republic of Bashkortostan, Russian Federation, e-mail: prochukhanky@list.ru
It is known that use of the surfactants is playing a very important role in oil production, preparation and transportation. One of the moments when using reagents, surfactants in particular, is determination of the petro-washing ability. The article discusses the petro-washing ability of water solutions of the anion surface-active substances (ASAS) of domestic and foreign production. One of the important moments while using the reagents is determination of the tested compositions effect on petro-washing. That’s why study of petro-washing processes is a very urgent problem. The range of 0,2…1,0 % mas concentration of surfactants was studied by applying the model of the "Western Siberia" reservoir water mineralization of which is 20 g/l. The reagents which showed the best and worst efficiency are defined. The research of definition of petro-washing ability characteristics using imported compositions as compared with domestic analogues is conducted. The high efficiency of the latter is showed.
Key words: surfactant; oil-water emulsion; reservoir waters; petro-washing ability; oil production processes.
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REVIEW OF MODERN DESIGN OF CENTRIFUGAL MASS-EXCHANGING DEVICE (ð. 47)
Dmitry Vasilievich Solodovnik, Sergey Ivanovich Boiko
JSC "NIPIgaspererabotka" 118, Krasnaya str., 350000, Krasnodar, Russian Federation, tel.: (861) 238-60-60, fax: (861) 238-60-70, å-mail: info@nipigas.ru
Polina Semenovna Kunina
Kuban State Technological University 135, Krasnaya str., 350020, Krasnodar, Russian Federation
The analysis of the existing mass-exchange and separation equipment is carried out to identify the promising directions for further development. The effective model of a centrifugal mass-exchange device is developed, laboratory testing is conducted. The dependences of hydraulic carryover and resistance on the flow rate factor are defined. The range of the device efficient operation is identified.
Key words: centrifugal mass-exchange plates; hydraulic carryover; flow rate factor; coefficient of efficiency; comparative analysis; experimental studies.
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QUALITY PARAMETERS OF TRIETHYLENE GLYCOL APPLIED IN GLYCOL HEATING SYSTEMS AT OFFSHORE OIL AND GAS PRODUCTION PLATFORMS (ð. 50)
A.V. Brikov
"Sakhalin Energy Investment Company, Ltd.", Yuzhno-Sakhalinsk Branch 35, Dzerzhinsky str., 693020, Yuzhno-Sakhalinsk, Russian Federation, å-mail: Alexander.Brikov@sakhalinenergy.ru
S.V. Sukhoverkhov, A.N. Markin
Institute of Chemistry, FEB RAS 159, 100-letiya of Vladivostok prosp., 690022, Vladivostok, Russian Federation, å-mail: svs28@ich.dvo.ru, Andrey.N.Markine@gmail.com
During operation of the systems of glycol-based heating fluid there occurs its gradual degradation expressed by pH reduction, increase of media corrosion activity, heating-exchange worsening and local overheating in heat exchangers due to sedimentation of glycol degradation products. When reaching the definite qualitative showings, water-glycol heating fluid cannot function at the required level of operational reliability and production safety and is subjected to change. Up to now there exist no industry accepted criteria of glycol-based heat-transfer fluids to assess the quality and substitution of water-glycol heat transfers. The article presents the analysis results of triethylene glycol (TEG) water solution from the system of technological heating of offshore oil and gas production platform. It is shown that in TEG aqueous solution during its operation there appear polyethylene glycols. Based on calculation of contaminants mass flows circulating in the system, the basic parameters for standardization and quality control of TEG aqueous solution used in the systems of technological are proposed.
Key words: triethylene glycol; high-efficient liquid chromatography; polyethylene glycol; sediments; degradation products of glycols; quality parameters.
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RESULTS OF FIELD TESTING OF ALKIOX-541 COMPOSITE DEMULSIFYING AGENT AT "KAMENNOE" PRELIMINARY WATER REMOVAL UNIT (UPWR)-BOOSTER STATION (BS) (ð. 55)
Dmitry Gennadievich Tsyganov, Natalia Yurievna Bashkirtseva, Olga Yurievna Sladovskaya
"Kazan National Research Technological University" 68, K. Marx str., 420015, Kazan, Republic of Tatarstan, Russian Federation, tel./fax: (843) 238-56-94, e-mail: tsyganov.dg@mail.ru, bashkircevan@bk.ru, olga_sladov@mail.ru
Sergey Vladislavovich Agniev
LLC "Alkiox" 100, Bld. 1, Vosstaniya str., 420095, Kazan, Republic of Tatarstan, Russian Federation
The article presents the results of pilot field testing of Alkiox-541 composite demulsifying agent at "Kamennoe" preliminary water removal unit (UPWR)-booster station (BS), developed by JSC "RN−Nyaganneftegaz", as compared with the baseline reagent.
Key words: oil-water emulsion; emulsion stability; surfactants (SAS); demulsifying agent; oil treatment.
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JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY" |