Equipment and Technologies for Oil and Gas Complex

The main fields of Pripyat depression are exploited with application of the system of a formation pressure maintenance. That is why it is necessary to update the existing oil recovery technologies and to introduce the modern ones (gas-water and gas-thermal impact, composite water-flooding, etc).

It is known that the basic flows of fluids in a formation pass through the zones with the best permeability-porosity characteristics of a reservoir. The majority of the deposits, operated by "Belorusneft" Production Association, belong to complicatedly-built carbonate reservoirs. Such type of reservoirs is characterized by heterogeneity of formations-reservoirs permeability, both by magnitude and direction. Studying of formations-reservoirs heterogeneity of productive intervals is necessary for creation of a conceptual hydrodynamic model and for a choice of the most effective policy when maximally developing hydrocarbon reserves. The most reliable method of definition of reservoirs characteristics heterogeneity is special studies of a core oriented samples of in laboratories. They allow determining the required parameters of permeability. However, such methods cost much and take a lot of time. The article suggests some method of estimation of anisotropy and vertical permeability by the results of wells hydrodynamic testing.

Key words: anisotropy; radial and vertical permeability; filtration; skin-factor.

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UDC 622.279.51/.7(571.1)

CREATION OF EMERGENCY WATER RESERVE IN UNDERGROUND TANKS,

BUILT IN PERMAFROST, TO ELIMINATE WILDE GAS BLOWOUTS AND FIRES

(p. 8)

Dmitry Markovich Chudnovskiy

LLC "Gazprom geotechnologies"

Bld. 2, 11, the 1^st Magistralnaya str., 123290, Moscow, Russian Federation,

phone: 8 (499) 940-99-31,

e-mail: d.chudnovskiy@g.azpromgeotech.ru

Sergey Vladimirovich Krushevskiy,

Dmitry Sergeevich Leontev

Tyumen State Oil and Gas Universi ty

38, 50 let Oktyabrya str., 625038, Tyumen, Russian Federation,

phone/fax: 8 (345) 241-70-21,

e-mail: Krushevskii.SV@nadym-dobycha.gazprom.ru, leonfob@mail.ru

Oleg Gennadyevich Denisov

LLC "TyumenNIIgiprogas"

2, Vorovskogo str., 625019, Tyumen, Russian Federation

Provision of fire and gas blowout safety during construction and operation of wells is a major challenge when developing hydrocarbon deposits located in difficult and remote areas with harsh climatic conditions. The lack of the necessary volume of water at a well can lead to an emergency situation related to the inability of fire timely extinguishment or wellhead equipment irrigation of a flowing well and special equipment. One of the ways of the problem solution is building of an underground storage tank of the required volume in the permafrost, surrounding the well, which can be filled-in by imported or melt-water.

Minimally waterless technology, based on directing of shut-off valves to the burning wellhead without fire extinguishing, is applied in the Far North conditions when eliminating wild gas blowouts that occur at gas, gas condensate and oil wells.

The article describes rock geological sections of Yamal Peninsula deposits. Presence of large thicknesses of sandy sediments over permafrost areas makes it possible to build underground storage tanks for emergency water storage. The water (in a sufficiently large volume) is required to extinguish the fire at the well during its drilling or operation as well as to irrigate its mouth and technical tools of emergency rescue service when liquidating an accident or a wild blowout.

Special underground water tanks are proposed to be built on the territory of a wells’ cluster, being drilled. These tanks after they are needed no longer can be used for storing drill and other processing wastes. Availability of emergency water supply at a wells’ cluster reduces the duration of liquidation and rescue-recovery activities as well as increases their industrial and environmental safety.

Key words: underground tank; permafrost; water; emergency supply; wild blowout; fire.

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UDC 622.276.8.05:655.622

DEVELOPMENT OF TECHNOLOGICAL EQUIPMENT

FOR OIL AND GAS FACILITIES OF OFFSHORE PLATFORMS

(p. 12)

Leonid Markovich Milshtein

E-mail: mleonmark@gmail.com

Promising technological equipment for oil and gas facilities such as three-pipe slug catchers and Venturi nozzles, vertical three-phase separators of gas–liquid–solid mixtures, transonic low-temperature separator, gasgaseous, gas-liquid actuators of gas and installations on their basis, is discussed in the present article. Advantages of these developments as compared with traditional analogues and examples of their application are shown. The listed equipment correspond to the requirements of the above-said installations of offshore platforms.

Key words: installation; equipment; slug catchers; Venturi nozzle; separator; gas actuator; development; analogue; requirement; offshore platform.

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UDC 622.24.051

INCREASE OF EFFICIENCY OF MEDIUM AND HARD ROCKS DESTRUCTION

DUE TO USE OF HELICAL STRUCTURES OF ROLLING-CUTTER DRILL BITS

(p. 18)

Dmitry Yurievich Serikov,

Eduard Samuilovich Ginzburg

I. Gubkin Russian State University of Oil and Gas

65, Leninsky prosp., 119991, Moscow, Russian Federation,

e-mail: serrico@rambler.ru

The results of the work aimed at improving the effectiveness of medium and hard rocks destruction by using helical structures of rolling-cutter drill bits are presented in the article. The analysis of research related to the definition of stress fields’ mutual effect arising while simultaneous contact of several teeth of rolling-cutter drill bits’ structure is conducted. It is found out that in case of the two teeth simultaneous impact on the well bottom there exists such optimum distance between their peaks, which provides reaching the maximum destructive effect caused by addition of stress waves generated by them in the rock, being drilled, as well as the influence of the orientation of the teeth working surfaces on the effectiveness of the destruction of well bottom rock. As a result of the work, it is proposed to equip the drill bits used for drilling of medium and hard rock by multidirectional helical structures with the teeth reduced angle of throat, which will allow reducing not only the energy consumption and minimizing racks formation but also ensuring even wear-out of all teeth structures over a full cycle of the tool operation.

Key words: rolling-cutter drill bit; stress field; helical structures.

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UDC 622.276

THE INFLUENCE OF THE FULL-HOLE VALVE ON THE PERFORMANCE

OF THE DOWNHOLE SUCKER ROD PUMP (p. 22)

Minnivaris Lutfulllinovich Galimullin,

Mavlitzyan Sagityanovich Gabdrakhimov,

Rustem Iskhakovich Suleymanov,

Lilia Mavlitzyanovna Zaripova,

Artur Ramilevich Ziyangirov

Ufa State Oil Technical University, an affiliate in Oktyabrsky-city

54a, Devonskaya str., 452600, Oktyabrsky-city, Republic of Bashkortostan, Russian Federation,

phone: 8 (34767) 6-54-01,

e-mail: lilyabert31@mail.ru

The article presents a deep analysis of the down-hole equipment operation. Based on the analysis of operation of well pumps, field tests of down-hole sucker rod pumps with the updated valve are developed and conducted. The calculations in the view of perfection of the updated full-hole valve as compared with the serial ball valve are given. The results of field testing are submitted.

Key words: full-hole valve; paraffin blockage; down-hole sucker rod pump; suction valve; ball valve; high-viscous fluids; abrasive; discharge valve; uniform wear-out.

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UDC 622.24

HYDROLYSED LIGNIN AS A COMPONENT OF A DRILL FLUID (p. 28)

Inna Vladimirovna Dobrodeeva,

Alexey Vladimirovich Kovalev,

Sergey Sergeevich Arkhipovets,

Svetlana Sergeevna Davydenko,

Filipp Viacheslavovich Degtyarev

Production association "Belorusneft"

15b, Knizhnaya str., 246003, Gomel, Republic of Belarus,

phone: 810+375232793981,

e-mail: a.kovalev4@beloil.by

Hydrolysed lignin is a refuse of wood processing industry, for several decades the scientists from different countries try to find an application to this polymer, however, complete utilization of this recourse is not yet practical.

Hydrolysed lignin as a component of a drill fluid has a range of positive characteristics (hydrophobic nature, oil-receptivity), which could be used for creation of new types of drill fluids.

Key words: hydrolysis; hydrophobic nature; oil-receptivity.

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UDC 622.276.72

CHEMICAL REAGENTS OF A DRILL MUD AS THE BASIS

OF ENSURING QUALITATIVE AND FAILURE-FREE DRILLING

(p. 30)

Alexander Sergeevich Panteleev

I. Gubkin Russian State University of Oil and Gas

Bld. 1, 65, Leninsky prosp., 119991, Moscow, Russian Federation,

e-mail: aleksandr.panteleew@yandex.ru

The relationship of accidents with chemical reagents when drilling oil and gas wells is identified and studied. The analysis of accidents is carried out and regularities and causes of their occurrence are revealed. The relationship between accidents/complications and chemicals is fixed and shown. We discussed in detail Some of the chemical reagents, as well as their interaction with one another is discussed in detail. The article is of an interdisciplinary character, written at the cross-sector of "drilling" and "quality management" disciplines. The main attention is paid to the problem of the database formation (in the form of diagrams) of chemicals bound to accidents/complications. The database is a part of the "Drill mud development" Knowledge Base and is required to ensure qualitative and failure-free drilling. It should be noted that the above scheme can be used independently of the knowledge base. The article addresses the issues of import substitution and suggests possible solutions of these issues.

Key words: drill mud; drill mud development; reagents of drill mud; accidents during drilling; failure-free drilling; quality control.

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UDC 622.276:621.312

SOME NEW PROSPECTS OF USE

OF ELECTRIC SUBMERSIBLE MOTORS WITH INCREASED VOLTAGE SUPPLY

TO DECREASE CAPITAL AND OPERATIONAL EXPENSES (p. 34)

Sergey Borisovich Yakimov

JSC "NK "Rosneft"

31A, Dubininskaya str., 115054, Moscow, Russian Federation,

phone/faks: 8(495) 355-10-15,

e-mail: s_yakimov@rosneft.ru

Mikhail Nikolaevich Kaverin,

Vitaly Pavlovich Tarasov

An affiliate of JSC "NK "RN-management"

6, Pervomaiskaya str., 625000, Tyumen, Russian Federation,

e-mail: MNKaverin@rosneft.ru, VPTarasov@ rosneft.ru

Reduction of capital and operational costs in case of oil mechanized production in conditions of a significant drop of oil prices is an urgent problem salvation of which is required for supporting profitability of marginal wells equipped with electrical submersible pump units. In the context of an essential increase in copper prices resulting in the price increase of cable products with copper conductors, there appeared the necessity of finding some ways to reduce the cost of the power cable used for the power supply to submersible electric motors. The article considers the possibility of further development of the benefits that were derived from use of widely-spread high-voltage submersible electric motors. By analogy with the technology of electric power transmission over long distances it is proposed to use high voltage motors in a set with a cable with aluminum-based wires. This equipment will significantly reduce the capital cost of the cable purchasing herewith, the energy saving effect will be preserved due to reduction of the operating current of the submersible electric motor. The results of calculations of the economic efficiency of the said equipment combination are presented; comparison with other possible options is made. As a result, some method of simultaneous reduction of operating and capital expenditures, in most cases not requiring any investment and allowing 18,1 % saving in cost during the first year of operation. The proposed method will be tested in the fields of JSC "NK" Rosneft".

Key words: increase of profitability of mechanized wells operation; reduction of costs in case of oil mechanized production; use of high voltage submersible electric motors (SEM); use of cables with aluminum conductors; energy conservation (energy efficiency) in case of oil mechanized production.

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UDC 622.692.407

STUDY OF STRESSED-DEFORMED STATE

OF A THIN-WALL LONG COVER BEING UNDER OUTSIDE LOAD

DISTRIBUTED SIMMETRICALLY ABOUT THE AXIS (p. 38)

R.M. Abyshova

Azerbaijan State Oil Academy

20, Azadlyg prosp., AZ1010, Baku, Republic of Azerbaijan,

e-mail: mahluda-rahimova@rambler.ru

When calculating the strength of pipelines, in many cases, the bending moment and shear force arising in the section of the pipe are not included. Calculation based on these forces is called the bending theory. The article, using the bending theory, draws up some equilibrium equations for the cover element, static indeterminacy is liquidated by means of movements in radial and longitudinal direction, a differential equation of the fourth order with respect to the radial displacement is obtained. Subsequently, longitudinal and tangential stresses from bending of the cover were defined.

Key words: cover; casing string; bending theory; middle surface; cylindrical rigidity.

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UDC 501

PHYSICAL-CHEMICAL PROCESSES DURING FORMATION

OF BIMETALLIC COMPOUNDS (p. 41)

Stanislav Leonidovich Kim

Institute of Mechanics, Ural branch of the Russian Academy of Sciences (UB RAS)

34, Baramzina str., 426067, Udmurtija, Izhevsk, Russian Federation,

phone: 8 (3412) 567-17,

e-mail: lgkim@ya.ru

Topochemical reactions of atoms interaction at the contact interface of layers lie in the basis of technological processes of dissimilar materials joining in the bimetallic structure. However, there appear intensive diffusion processes, leading to changes in the structure and properties of the materials to be joined. The diversity of influencing factors in technological processes of bimetallic structures production necessitates their classification, identification of formation patterns. Depending on the requirements to bimetallic structure, its working (cladding) layer should have high corrosion resistance, wear resistance, electric conductivity, etc. As far as physical-chemical properties of metals and its atoms interaction are concerned, it is determined by the types of the connection zone.

Key words: bimetallic compounds; diffusion; activation; adhesion.

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UDC 622.276.66

EQUIVALENT PROPPANT CONCEPT IN THE TASKS

OF ACID FRACTURING OPTIMIZATION (p. 45)

Oleg Vyacheslavovich Salimov,

Arslan Valerievich Nasybullin

Tatar Scientific-Research and Project Institute of Oil – "TatNIPIneft", JSC "Tatneft" named after V.D. Shashin

32, Musa Jalil str., 423236, Bugulma, Republic of Tatarstan, Russian Federation,

phone: +8(85594) 78-984, 78-641,

e-mail: sov@tatnipi.ru, arslan@tatnipi.ru

Vyacheslav Gainanovich Salimov

Volga-Kama Regional Branch of the Russian Academy of Natural Sciences

32, Musa Jalil str., 423236, Bugulma, Republic of Tatarstan, Russian Federation,

phone: 8 (85594) 784-06,

e-mail: salimov@tatnipi.ru

Some "equivalent proppant" calculation method for an acid-etched fracture is presented. This is a fake proppant which, when placed inside an etched-pattern fracture, will create the same conductivity and result in similar dependency between conductivity and confining stress as a real acid-etched fracture.

The calculations have been performed in EXCEL. Comparison with FracPRO results has yielded the relative error within +5…–2%.

Equivalent proppant is established for each particular task with specific boundary conditions and input parameters and should be varied with them. It is assumed that the width of an equivalent-proppant-laden fracture is constant, independent of confining stress, and is either equal to the design acid-etched width or is defined by the given proppant concentration.

Key words: acid fracturing; equivalent proppant; fracture design optimization.

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UDC 622.691.24

INCREASE OF EFFICIENCY

OF KALMASS UNDERGROUND GAS STORAGE FACILITIES

WHEN GAS INJECTION AND OFF-TAKE (p. 48)

A.N. Gurbanov,

E.Kh. Iskenderov

NIPI "Neftegaz", State Oil Company of Azerbaijan Republic

88a, G. Zardabi prosp., AZ1123, Baku, Republic of Azerbaijan,

phone: 8 (1099412) 373-53-93,

e-mail: qabdulaga@mail. ru

Problems of increasing efficiency of gas preparation technologies during its off-take from Kalmass underground gas storage (UGS) facility are discussed. Gas consumption irregularity is one of the main operation mode parameters of underground gas storage facilities. UGS facilities are an integral part of its transportation network and guarantee its normal operation. Increase of quality and efficiency of gas off-take from underground gas storage facilities in the Azerbaijan Republic depends on the updating of the existing technologies that are applied when preparing gas for transportation.

To increase active volume of injected gas, the current state of gas preparation technology for transportation, thermodynamic parameters of all wells and production equipment at Kalmass UGS facility have been analyzed. A series of research studies with the view of some new technology development is carried out. The results of the carried-out research studies served the basis for development of some new complex absorbent for gas dehydration and hydrate formation prevention based on local petrochemical products. In addition, optimal thermodynamic and technological modes of the unit operation during gas take-off from Kalmass UGS facility are selected.

Key words: well; compressor; oil and gas condensate; dehydration; unit; glycol.

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UDC 622.692:234

VAPOR RECOVERY SYSTEM IN OIL TANK FARMS WITH RETURN

OF EVAPORATED LIGHT FRACTIONS INTO COMMERCIAL PETROL

(the RF patent of utility model) (p. 52)

Yury Alexeevich Matveev,

Vladimir Alexeevich Kuznetsov,

Valery Viktorovich Yershov,

Andrey Yurievich Mulgachev,

Ekaterina Alexeevna Varnakova

Federal State Budget Educational Department of High Professional Education "Ulyanovsk State University"

42, Leo Tolstoy str., 432017, Ulyanovsk, Russian Federation,

phone: 8 (8422) 372-462,

e-mail: bgd020762@mail.ru

The useful model refers to the devices for reception and storage of petroleum products. The unit allows recovering vapor of oil products in the tanks due to temperature reduction in the heat-exchange unit and absorption by absorbent.

The useful model involves total steam pipe for vapor recovery, compressor, tanks to collect vapors, underground tanks with diesel fuel and gasoline, equipped with a receiver and a filter, heat-exchange unit with refrigeration unit.

Key words: tank; steam pipe; compressor; heat-exchange unit; pump; temperature; vapor of oil products; refrigeration unit.

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UDC 621.642.2/.3:656.065.35

TANK EGUIPPED WITH VIBRATING LEVEL SWITCH

AND INSTALLATION OF OIL PRODUCTS VAPOR RECOVERY

(the RF patent of utility model) (p. 58)

Yury Alexeevich Matveev,

Pavel Pavlovich Mirоnоv,

Yanna Alexandrovna Zakharova

Federal State Budget Educational Establishment of Higher Professional Education "Ulyanovsk State University"

42, Leo Tolstoy str., 432017, Ulyanovsk, Russian Federation,

phone: 8 (8422) 372-462,

e-mail: bgd020762@mail.ru

Stanislav Stefanovich Chebotarev

JSC "Central Scientific-Research Institute of economics, computer science and control systems"

2/7, Malaya Bronnaya str., 123104, Moscow, Russian Federation,

e-mail: stst57@ya.ru

Dmitry Fedorovich Lavrinenko

Federal State Budget Educational Establishment of Higher Professional Education "Civil Protection Academy (CPA), Ministry of the Russian Federation for Civil Defense, Emergency Management and Natural Disaster Response"

Sokolovskaya str., Novogorsk micro-district, 141435, Khimki, Moscow region, Russian Federation,

e-mail: LAVR85@INBOX.RU

The utility model relates to the devices that determine the level of oil products, vapor recovery and can be used at the reception, storage and delivery of fuel from the tanks. The device allows preventing oil products overflow from the tank as well as trapping fuel vapors. The operating principle of the vibrating level switch is based on the dependence of the frequency and oscillations amplitude on the medium of an oil products storage tank.

The utility model includes a tank, vibrating level switch, vapor recovery installation, relay, pump.

Key words: tank; oil products; vapor recovery; frequency; amplitude; alarm; level; relay; pump.

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THE 80^TH ANNIVERSARY SINCE THE BIRTHDAY

OF SHEVCHENKO A.K. (p. 63)

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JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY"

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