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ISSN 1999-6934 Scientific-technical journal published since 2001 April 2016 ¹ 2 6 issues per year
CONTENÒS |
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GEOLOGICAL AND GEOPHYSICAL RESEARCHES |
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Sarbopeeva M.D. Analysis of wells drilling conditions in the fields of the Caspian basin (p. 4-7) |
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MACHINERY AND EQUIPMENT |
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MATERIALS AND REAGENTS |
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Dmitrieva A.Yu., Musabirov M.Kh. Microscopic analysis of downhole-generated foamed acid composition (p. 26-29) |
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NEW METHODS AND TECHNOLOGIES |
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Information on the articles (p. 65-72) |
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Information on the articles |
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ANALYSIS OF WELLS DRILLING CONDITIONS IN THE FIELDS OF THE CASPIAN BASIN (ð. 4)
Manshuk Dagistanovna Sarbopeeva
Sh. Esenov Caspian State University of Technology and Engineering 32th microregion, 130000, Aktau, Republic of Kazakhstan, e-mail: manshyk84@mail.ru
The article presents the results of the geological-technological data analysis obtained from the fields of the Caspian Basin. The results of the technological researches interpretation carried out to establish zones of abnormally high formation pressure are shown on the example of one well. The graphs of change of d-exponent, sigma-logging, porosity, permeability and lithology with depth are submitted.
Key words: abnormally high reservoir pressures; field; geological-technological researches; indicators of wells drilling; porosity; permeability.
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ANALYSIS OF WASHING SYSTEMS STRUCTURES OF ROLLING-CUTTER DRILL BITS (ð. 8)
Dmitry Yurievich Serikov, Vitaly Anatolievich Yasàshin, Vera Nikolaevna Ageeva
Gubkin Russian State University of Oil and Gas 65, Leninsky prosp., 119991, Moscow, Russian Federation, e-mail: serrico@rambler.ru
The analysis of washing systems structures of rolling-cutter drill bits is presented. Major factors of interdependence that influence the effectiveness of a well bottom cleaning when drilling by rolling-cutter drill bits are fixed. The analysis of variants of the most effective jet direction for various types of designs of drill-bit cutting structures as well as for drilling conditions is conducted. The necessity of the measures to reduce the adverse effects of screening jets on well bottom cleaning process for jetting bits, in particular, the use of the asymmetric scheme of washing, ejection effect, equipping of bits by vortex chambers, the use of a pulsating washing; smaller diameter nozzles with their approach to the well bottom, application of the original structure of a well bottom assembly (BHA) change of nozzles’ layout and their shape is substantiated. The advantages and disadvantages of the asymmetrical washing scheme and various options of its updating are described. The design schemes of manufacturing of rolling-cutter drill bits using sludge removing openings in the arms and various ejection systems are presented. The analysis of washing systems structures of rolling-cutter drill bits proves availability of significant reserves to be used for efficiency enhancement of well bottom cleaning by means of optimization of washing schemes and washing units as well as by changing the shape of jetting nozzles.
Key words: rolling-cutter drill bit; jetting nozzle; washing liquid.
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LABORATORY INSTALLATION USED FOR RESEARCHING OF FLUIDS PULSED INJECTION INTO A FORMATION (ð. 14)
Marat Yakhievich Khabibullin, Ismagil Ganeevich Arslanov, Rima Yavdatovna Abdyukova
Ufa State Oil Technical University, affiliate in Oktyabrsky-city 54-a, Devonskaya str., 452607, Oktyabrsky-city, Republic of Bashkortostan, Russian Federation, e-mail: m-hab@mail.ru, arslanov59@mail.ru, abd_rima1968@mail.ru
Under the fluid pulsed injection there appears the necessity of choosing the optimum operational parameters of the developed devices in the system of formation pressure maintenance. This is the aim of discussing of the developed laboratory bench. Full description of the laboratory bench structure with all its elements and technical specifications is given. The developed installation allows conducting the following laboratory-experimental studies: the study of output parameters and corresponding selection of optimal design parameters of the developed devices, the study of the influence of pressure and frequency of liquid pulses on the working fluid penetration into the sandy samples. The methods of carrying out experimental studies on the developed stand are described in detail.
Key words: laboratory; pump; testing chamber; pulsed injection; pressure; holder; method.
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DETERMINATION OF THE OPERATIONAL EFFICIENCY OF DIRECT-FLOW VALVES OF THE OIL-AND-GAS FIELD PISTON COMPRESSORS IN THE SYSTEM OF GAS-LIFT WELL OPERATION (ð. 17)
Natiq Sabir Seidahmedov
Azerbaijan State Scientific Research Institute on Occupational Safety and Health and Safety 108, Tabriz str., AZ1000, Baku, Republic of Azerbaijan, e-mail: n.natiq.az@mail.ru
The article discusses the problem of determination of the operational efficiency of direct-flow valves of oil-and-gas field piston compressors in the system of gas-lift wells operation.
Key words: gas-engine piston compressors; direct-flow valve; tightness; efficiency; low-pressure associated gas; average duration; operating ratio.
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HEAT-THERMAL-DYNAMIC CALCULATION OF THE NEW DESIGN OF A HOUSING OF A DOUBLE-CHANNEL REFRIDGERANT UNIT WITH SCREW-SHAPED MOVEMENT OF THE HOT GAS UNDER COOLING (ð. 21)
Vasif Izzat Aliev
Scientific Research Institute "Geothechnical problems of oil, gas and chemistry"
Ibrahim Abulfaz Gabibov, Rabilya Seidulla Nadjafkuliyeva
Azerbaijan State University of Oil and Industry 20, Azadlyg prosp., AZ1010, Baku, Republic of Azerbaijan, e-mail: h.ibo@mail.ru, rabiya.nadjafkuliyeva@gmail.com
Numerous heat exchangers of various design, among which shell and tube heat exchangers being the most common ones, are used in oil and gas producing, oil refining and petrochemical industries. The disadvantage of these refrigeration units is low efficiency of a pipe-still surface cooling as well as decrease of operational efficiency in conditions of oil and gas production, gathering and preparation due to the blocking of the pipe-still internal surfaces. The article describes some new design of a heat exchanger characterized both by a simple structure and an intensity of compressed hot gas cooling through the use of sea water natural cold and greater area of cooling. Comparative calculation of indicators of surface cooling by one newly-designed unit with surface cooling by one installation, being currently in operation, is given. The efficiency of surface cooling by the newly-designed unit is shown.
Key words: refrigeration unit; heat exchanger; shell and tube heat exchangers; compressors; construction; sea water; compressed gas; temperature.
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MICROSCOPIC ANALYSIS OF DOWNHOLE-GENERATED FOAMED ACID COMPOSITION (ð. 26)
Alina Yurievna Dmitrieva
LLC "Oil and Gas Technologies" 64, Musa Jalil str., 423236, Bugulma, Republic of Tatarstan, Russian Federation, e-mail: alina_dmitrieva_1971@inbox.ru
Munavir Khadeevich Musabirov
Tatar Scientific Research and Project Institute of Oil "TatNIPIneft", PJSC "Tatneft" V.D. Shashin 32, Musa Jalil str., 423236, Bugulma, Republic of Tatarstan, Russian Federation, e-mail: musabirov@tatnipi.ru
Samples of a newly formulated foamed acid system are analyzed. The objective of the paper is to make qualitative and quantitative analyses of dispersion ability and fine structure of the foamed acid composition generated during acidic and foaming components reaction. Various studies have been performed, including theoretical and experimental researches of foam and foamed-acid compositions generation to stimulate oil production, microscopic photography of foamed acid compositions as well as evaluation of dispersion ability and characteristics of low-expansion foam.
Key words: foamed acid; dispersion ability; microscopic analysis; acidizing; cell size.
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IMPACT OF HORIZONTAL WELL BORES DESIGN ON RECOVERY OF RESERVES (ð. 30)
Ildar Sirinovich Karimov
PJSC "Tatneft" V.D. Shashin 75, Lenin str., 423450, Almetyevsk, Republic of Tatarstan, Russian Federation, e-mail: karimovis@mail.ru
Ildar Ilshatovich Bakirov
Tatar Scientific Research and Project Institute of Oil "TatNIPIneft", PJSC "Tatneft" V.D. Shashin 32, Musa Jalil str., 423236, Bugulma, Republic of Tatarstan, Russian Federation, e-mail: tanz@tatnipi.ru
Ilnur Rashitovich Mukhliev, Lenar Rafisovich Sagidullin, Ildar Akhnafovich Gataullin
"Jalilneft" Oil and Gas Production Department, PJSC "Tatneft" V.D. Shashin 2, Lenin str., 423368, Jalil poselok, Sarmanovsky region, Republic of Tatarstan, Russian Federation, e-mail: dn_ro@tatneft.ru, dn_geo@tatneft.ru, dn_geo5@tatneft.ru
This paper analyzes the opportunities of updating of the existing development techniques, the efficiency of implementation of horizontal drilling techniques in "Jalilneft" Oil and Gas Production Department (PJSC "Tatneft"). Despite the success of horizontal drilling techniques horizontal wells and horizontal sidetracks their potential isn’t fully used. The authors have worked out some guidelines and suggestions for improving efficiency of horizontal drilling operations in the deposits of "Jalilneft" Oil and Gas Production Department. The results obtained during the operation of wells with horizontal completion proved the necessity of selecting the appropriate well completion variant. The paper shows how the well completion technology affects the possibility of conducting remedial cementing and water shutoff works in wells with horizontal completion. The following requirements have been laid down for well designs with horizontal completion: intervals of the reservoir with different porosity and permeability should be separated; horizontal wellbores should be cased for safety reasons and well workover. Also Economic efficiency of isolation works has also been calculated.
Key words: low-productive formations; horizontal wells; hard-to-recover reserves; oilfield development; drilling; well completion; horizontal sidetracks; water shutoff.
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HYDRODYNAMIC CAVITATIONAL MIXER FOR MAKING ACID-OIL EMULSIONS AND EXPERIENCE OF ITS USE IN THE BELARUS REPUBLIC OIL FIELDS (ð. 36)
Dmitry Viktorovich Tkachev, Gennady Gennadievich Pechersky
"Belorusneft" Production Association, "BelNIPIneft" 15b, Knizhnaya str., 246003, Gomel, Republic of Belarus, e-mail: d.tkachev@beloil.by
Viktor Mikhailovich Tkachev, Alexander Mikhailovich Selyutin, Alexander Igorevich Stolyarov
Pavel Sukhoi Gomel State Technical University 48, Oktyabr prosp., 246746, Gomel, Republic of Belarus, e-mail: vmtkachev@gstu.by
The experience of designing of hydrodynamic mixers for making water-oil and acid-oil emulsions is described in the article. Based on the numerical modeling of multi-phase flow of operating fluid in conditions of the developed cavitation, there developed the design of a mixer with centrifugal burners. The results of the mixer field tests while treating the producing wells with acid-oil emulsions in the Belarus Republic oil fields are given. Integrated studies of the emulsions, obtained at different process flow patterns in the field and laboratory conditions are performed. The efficiency indices of the conducted geological-technical activities aimed at production stimulation by the method of controlled acid treatment are presented.
Key words: hydrodynamic mixers; water-oil and acid-oil emulsions; cavitation; enhanced oil recovery.
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PROJECTING OF TULSKIAN-BOBRIKOVIAN DEPOSITS DEVELOPMENT OF KONTUZLINSKY OIL FIELD USING HORIZONTAL WELLS (ð. 40)
Marat Anisovich Shavaliev, Vadim Valerievich Akhmetgareev, Ruzaliya Talgatovna Shakirova, Danil Sergeevich Danilov, Evgeny Konstantinovich Plaksin
Tatar Scientific Research and Project Institute of Oil "TatNIPIneft", PJSC "Tatneft" V.D. Shashin 32, Musa Jalil str., 423236, Bugulma, Republic of Tatarstan, Russian Federation, e-mail: shavaliev@tatnipi.ru, post02@tatnipi.ru, razr@tatnipi.ru, razrdds@tatnipi.ru, razrab_pr5@tatnipi.ru
The authors of the paper consider projecting of Tulskian-Bobrikovian deposits development of Kontuzlinsky oil field using horizontal wells. The presented development scenario by using horizontal and multilateral horizontal wells will allow 3,8 % oil recovery increase as compared to the similar development by using vertical wells. Calculation of development indices of the proposed scenario was carried out by means of the history-matched hydrodynamic model of "Roxar″ software (Tempest). Economic assessment of the project has demonstrated 365,8 mln RUB increase of the net present value.
Key words: Tulskian-Bobrikovian deposits; horizontal wells; recovery of residual oil reserves; reservoir simulation model; development scenario; maximum oil recovery factor; economic assessment.
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ACOUSTIC EFFECT AS FACTOR OF INCREASING EFFICIENCY OF OIL-WATER EMULSION SEPARATION (ð. 47)
Nikolay Ivanovich Vasilyev, Elena Nikolaevna Datsenko, Inna Olegovna Orlova, Natalya Nikolaevna Avakimyan, Tatos Vladimirovich Arutyunov
"Kuban State Technological University" 2, Moskovskaya str., 350072, Krasnodar, Krasnodar Krai, Russian Federation, e-mail: assoletta77@mail.ru
Possibility of intra-pipe separation of a water-oil emulsion in a well loop by means of two sources of acoustic vibrations is considered. Herewith, the acoustic vibrations extend towards each other. Moving emulsion flow is subjected to ultrasonic vibrations influence from the first source with a vibrations frequency f1 and with the direction of the wave spreading, that coincides with the direction of the flow movement, as well as to ultrasonic influence of the second source with acoustic vibrations frequency f2, less than f1, and with the direction of the wave spreading opposite to the direction of the flow movement direction. Vibrations are selected in accordance with the flow rate W so that f1 – f2 = W (f1 + f2) / c, where c is the acoustic sound velocity in the emulsion. Such arrangement of acoustic influence sources and such choice of vibrations ensure efficiency increase of a water-oil emulsion separation. It is possible to carry out separation of oil and water directly near a well’s mouth.
Key words: emulsion; separation; coagulation; acoustic influence; ultrasound.
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MATHEMATICAL MODELS OF THE PROCESS OF MANUFACTURING OF THREADED PLASTIC DETAILS FOR THE OIL EQUIPMENT (ð. 50)
Shakhnaz Agakishi Agaeva, Nailya Aga Kyazim Gasanova, Jahid Ali Kerimov
Azerbaijani State University of Oil and Industry 34, Azadlyg prosp., ÀZ1010, Baku, Republic of Azerbaijan, e-mail: bakiadna78@mail.ru
Mahabat Basar Dzhamalov
Mingechaursky Polytechnical Institute 21, D. Alieva str., AZ4500, Mingechaur, Azerbaijan Republic, e-mail: mpi@meic.osi-az.org
The article deals with the mathematical methods application when studying the influence of the individual mode parameters (specific pressure, pressing, holding time and pressing temperature) on the quality of the manufactured parts. At the same time as pilot sites for the experiments there were used plastic parts from various materials used in the oilfield equipment (covers, slingers, reducers of pumping units, cover pump housings, etc.). Optimal modes to be used in plastic parts manufacture of oilfield equipment are recommended.
Key words: oil field equipment; shrinking step; thread outer diameter; shrinkage; threaded plastic parts; mathematical model.
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INSTALLATION OF EXTINGUISHING OF PETROLEUM PRODUCTS IN TANKS USING FIRE EXTINGUISHING MIXTURE OF CARBON DIOXIDE AND FREON REFRIGERANT (the RF patent of utility model) (ð. 54)
Yury Alexeevich Matveev
Public Joint Stock Company "Ulyanovsky Automobilny Zavod" 92, Moskovskoye shosse, 432034, Ulyanovsk, Russian Federation, e-mail: y.a.matveev@sollers-auto.com
Vladimir Alexeevich Kuznetsov
"Ulyanovsk State University" 42, Leo Tolstoy str., 432017, Ulyanovsk, Russian Federation, e-mail: bgd020762@mail.ru
Dmitry Fedorovich Lavrinenko
"Civil Defense Academy (CDA) EMERCOM of Russia" Sokolovskaya str., 141435, Khimki, Novogorsk micro-district, Moscow region, Russian Federation, e-mail: LAVR85@INBOX.RU
The useful model belongs to the facilities of storage and fire extinguishing of oil products. The unit allows simultaneous supplying of carbon dioxide and freon refrigerant both from the top of the tank and into the top layer of an oil product. The useful model includes a module for gas storage, gas pipeline, connected by means of a metal-reinforced hose with a floating plate, equipped by the distribution system and nozzles for gas supply, as well as internal circular gas pipeline.
Key words: oil product; reservoir; extinguishing; floating plate; module for gas storage; internal circular gas pipeline; carbon dioxide; freon refrigerant.
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REGULATION OF THE PRODUCTION CAPACITY OF LNG PLANT USING THE MODEL OF FUZZY CONTROL (ð. 59)
Mikhail Nikolaevich Zakharov
N.E. Bauman Moscow State Technical University 5, bld. 1, 2nd Baumanskaya str., 105005, Moscow, Russian Federation, e-mail: zmn@bmstu.ru
Adam Mikhailovich Sampiev
I. Gubkin Russian State University of Oil and Gas 65, Leninsky prosp., 119991, Moscow, Russian Federation, e-mail: adam_sampiev_1@bk.ru
When projecting natural gas liquefaction businesses in the regions with severe climatic conditions it is necessary to take into account the logistical risks associated with the delays or early arrival of tankers for loading engaged in liquefied natural gas transportation. In case of deviation from the scheduled time of LNG carriers, arrival for loading the projected capacity of technological chains should be adjusted accordingly, with account of the limited volume of LNG storage tank farm. The paper describes the developed model of fuzzy control of LNG plant production capacity on the basis of the theory of fuzzy sets. The data of the project of Yuzhno-Tambeyskoye gas-condensate field development in the Yamal Peninsula, the Russian Federation, will be used as the initial data for the model development.
Key words: control; production capacity; regulation; liquefied natural gas (LNG); model; gas-condensate field.
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JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY" |