ISSN 0207-2351

Scientific-technical journal

OILFIELD ENGINEERING

                                                                                                                 published since 1965

June 2015                                                   ¹ 6                  12 issues per year

 

CONTENÒS

 

DEVELOPMENT OF OIL AND GAS-OIL FIELDS

 

Rastrogin A.E., Fominykh O.V., Saranchin S.N. The problem of justification of horizontal wells limited production in oil and in gas deposits (p. 5-7)

 

Fedorenko N.V., Kozhin V.N., Sagitov D.K., Shaimardanov M.N., Khalikova V.E. Increase of extraction and intensification of reserves recovery by refraction of filtration directions while correcting the wells’ fund (p. 8-10)

 

Lats S.A., Rastegaev A.V., Galkin V.I. Estimation of Yu1 layer petroleum potential using 2D seismic survey data (p. 11-15)

 

Melkishev O.A. Identification and use of anticlinal and synclinal areas for petroleum potential zonal prediction (by the example of deposits of visean terrigene oil and gas complex in the south of Perm territory) (p. 15-19)

 

Lats S.A., Rastegaev A.V., Galkin V.I. Analysis of influence of Yu2 layer structural parameters on its petroleum potential in the territory of production company "Kogalymneftegaz" (p. 19-22)

 

Lesnoy A.N., Bochkarev A.V., Kalugin A.A., Bronskova E.I. Zoning change of rock properties and wells productiviry in the block structure of jurassic sediments of Vategansky field (p. 23-28)

 

METHODS OF PRODUCING EFFECT ON A DEPOSIT AND RAISING OIL RECOVERY

 

Khaertdinov R.R. Analysis of performing of a formation hydraulic fracturing at the fields of oil and gas production department "Tuymazaneft" of JSC "Bashneft" (p. 29-34)

 

Nikitin V.S., Aleinikov V.S., Khalikova V.E., Amirov A.A., Vafin T.R. Substantiation of placement of tube oil dehydrators when controlling water injection aimed at oil recovery increase and oil production enhancement at large oil fields (p. 34-39)

 

Zeigman Yu.V., Sergeev V.V. Laboratory testing of acid compositions for treatment of wells with carbonate and terrigenous collectors (p. 39-45)

 

Salavatov T.Sh., Aliyev Yo.M., Gabibullayeva Sh.A. Improved technology of microbiological impact on oil reservoir and bottomhole zone (p. 45-47)

 

RESEARCH OF FORMATIONS AND WELLS

 

Menshikov S.N., Varyagov S.A., Nersesov S.V., Oglodkov D.Yu., Kozin V.N., Mikhalev A.A., Bondarev V.L., Gudzenko V.T., Mirotvorsky M.Yu. Assessment of gas wells’ technical state by geo-chemical methods (p. 47-52)

 

MATHEMATICAL MODELLING

 

Ivantsov N.N., Stepanov S.V., Stepanov A.V., Bukhalov I.S. Assessment of possibilities of hydrodynamic simulators to imitate the development of high-viscous oil fields. Part 1. Coning (p. 52-58)

 

GATHERING, TRANSPORTATION AND PREPARATION OF OIL, GAS AND WATER

 

Prachkin V.G., Galyautdinov A.G., Baranov D.A. Changing of colloid-dispersed properties of oil systems using ultrasonic treatment (p. 58-63)

 

Ilóinà G.F., Ilóina M.N., Ilyin N.N. Preparation of associated petroleum gas for small energy on the basis of the adsorption device (p. 64-68)

 

Information on the articles (p. 69-76)

 

 

Information on the articles

 

UDC 622.276.346

 

THE PROBLEM OF JUSTIFICATION OF HORIZONTAL WELLS

LIMITED PRODUCTION IN OIL AND IN GAS DEPOSITS (ð. 5)

 

Artur Evgenievich Rastrogin

Federal State-Funded Institution "State Commission on Mineral Reserves"

54, bld.1, Bolshaya Polyanka str., 119180, Moscow, Russian Federation

 

Oleg Valentinovich Fominykh

 

"Tyumen State Oil and Gas University (TSOGU)"

38, Volodarsky str., 625000, Tyumen, Russian Federation,

e-mail: fov@tsogu.ru

 

Sergey Nikolaevich Saranchin

 

Federal State Unitary Enterprise "ZapSibNIIGG"

48/4a, Respublika str., 625000, Tyumen, Russian Federation,

e-mail: office@zsniigg.ru

 

The use of wells with horizontal endings is one of the key trends in efficiency enhancement of oil and gas deposits development. It is known that oil recovery factor of such deposits rarely exceed 0,3 and that fact is explained by the complexity of choosing the optimal technology of oil-saturated area development, complications while operating the wells, including the ho­rizontal ones, associated with the breakthrough of bottom water and gas. In this regard, substantiation both the design features and the spatial arrangement of horizontal wells and technological modes of their work is of some interest. The article deals with the problem of determination of limiting water-free and gas-free production rates based on analytical and hydrodynamic models.

 

Key words: oil and gas reservoir; horizontal well; limiting flow rate; coning.

 

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UDC 622.276.34

 

INCREASE OF EXTRACTION AND INTENSIFICATION

OF RESERVES RECOVERY BY REFRACTION OF FILTRATION DIRECTIONS

WHILE CORRECTING THE WELLS’ FUND (ð. 8)

 

N.V. Fedorenko

 

JSC "Orenburgneft"

2, Magistralnaya str., 461040, Buzuluk, Orenburg region, Russian Federation,

tel.: (353) 237-54-02,

fax: (353) 237-52-68

 

V.N. Kozhin

 

JSC "Samaraneftegeofizika"

21, Sportivnaya str., 443030, Samara, Russian Federation,

e-mail: sng@sngeo.ru

 

D.K. Sagitov, M.N. Shaimardanov, V.E. Khalikova

 

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 describes some method applied to increase the degree of development and intensification of reserves recovery by adjusting well spacing in accordance with the principle of directions refraction of the preferable filtration. Filtration flows directions are determined on the basis of the vector field in the reservoir pressures within the frames of relatively permeability-homogeneous site. The approach allows assessing the impact of each well on the site under consideration and selecting the most appropriate point to break the field vectors at the place of their greatest rarefaction, i.e. to apply the standard methods of work with the wells fund to intensify oil production and bring into production previously non-drained reserves.

 

Key words: oil; extraction; intensification; reserves; oil recovery; wells fund; filtration flow.

 

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UDC 553.98(571.122)

 

ESTIMATION OF Yu1 LAYER PETROLEUM POTENTIAL

USING 2D SEISMIC SURVEY DATA (ð. 11)

 

Sergey Anatolievich Lats

 

LLC "LUKOIL−Engineering" "KogalymNIPIneft", branch in Tyumen

143a, Respublika str., 625000, Tyumen, Russian Federation,

å-mail: LatsSA@tmn.lukoil.com

 

Alexander Vasilievich Rastegaev,

Vladislav Ignatievich Galkin

 

Perm National Research Polytechnic University

29, Komsomolsky prosp., 614000, Perm, Perm krai, Russian Federation,

tel./fax: (342) 219-83-14,

å-mail: Vgalkin@pstu.ru

 

Analysis of influence of Yu1 layer structural parameters on its petroleum potential is conducted by applying probabilistic-statistical methods. The following characteristics of Yu1 layer: absolute marks of the top of koshajsky, savujsky, sambursky, komsomolsky, urevsky and samotlorsky beds, bazhenov suite and Yu1 and Yu2 layers were used while researching. Individual and complex probabilistic-statistical models of petroleum potential prediction of Yu1 layer were built depending on its structural parameters.

Assessment of prediction reliability using the developed statistical models is carried out. The total identification of the standard sampling when applying the model comprising a set of parameters makes 84 %. Computing is done and probability map of prediction of oil and gas potential in Vostochno-Yanchinsky area is developed.

 

Key words: petroleum potential; hypsometric level; well; reference sampling; probabilistic-statistical model.

 

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UDC 553.98

 

IDENTIFICATION AND USE OF ANTICLINAL AND SYNCLINAL AREAS

FOR PETROLEUM POTENTIAL ZONAL PREDICTION (BY THE EXAMPLE

OF DEPOSITS OF VISEAN TERRIGENE OIL AND GAS OMPLEX

IN THE SOUTH OF PERM TERRITORY) (ð. 15)

 

O.A. Melkishev

 

Perm National Research Polytechnic University

29, Komsomolsky prosp., 614000, Perm, Perm region, Russian Federation,

e-mail: gng@pstu.ru

 

Some principal model of identification of anticline and synclinal areas is built and possibility of their use for zonal prediction of petroleum potential is substantiated. Probabilistic-stati­stical model and the map of petroleum potential prediction for Visean terrigene oil and gas complex in the south of Perm territory were developed. Assessment of petroleum potential probability of the prepared structures in Visean terrigene oil and gas complex is carried out.

 

Key words: anticline and syncline areas; zonal prediction of petroleum potential; Visean terrigene oil and gas complex; pro­babilistic and statistical methods.

 

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UDC 553.98(571.122)

 

ANALYSIS OF INFLUENCE OF Yu2 LAYER STRUCTURAL PARAMETERS

ON ITS PETROLEUM POTENTIAL IN THE TERRITORYOF PRODUCTION COMPANY "KOGALYMNEFTEGAZ" (ð. 19)

 

Sergey Anatolievich Lats

 

LLC "LUKOIL−Engineering" "KogalymNIPIneft", branch in Tyumen

143a, Respublika str., 625000, Tyumen, Russian Federation,

å-mail: LatsSA@tmn.lukoil.com

 

Alexander Vasilievich Rastegaev,

Vladislav Ignatievich Galkin

 

Perm National Research Polytechnic University

29, Komsomolsky prosp., 614000, Perm, Perm krai, Russian Federation,

tel./fax: (342) 219-83-14,

å-mail: Vgalkin@pstu.ru

 

Analysis of influence of Yu2 layer structural parameters J2 on its petroleum potential is conducted by applying probabilistic-statistical methods. We used characteristics of the layer J2: Absolute marks of Yu2 layer interfaces were used for researches. Individual and complex probabilistic-statistical models of petroleum potential prediction of Yu1 layer were built depending on its structural parameters. The models were built separately for Severo-Surgutsky and Severo-Vartovsky stages, Yarsomovsky mega-trough and Surgut arch. Assessment of prediction reliability using the developed statistical models is carried out. The total identification of the standard sampling when applying the model makes 77 %.

 

Key words: petroleum potential; hypsometric level; well; reference sample; probabilistic-statistical model.

 

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UDC 553.98(2/.9)+550.834; 550.832+552.54

 

ZONING CHANGE OF ROCK PROPERTIES AND WELLS PRODUCTIVIRY

IN THE BLOCK STRUCTURE OF JURASSIC SEDIMENTS

OF VATEGANSKY FIELD (ð. 23)

 

Alexander Nikolaevich Lesnoy,
Anatoly Vladimirovich Bochkarev,
Alexander Alexandrovich Kalugin,
Elena Ivanovna Bronskova

 

"LUKOIL−Engineering, Ltd."

2, Suschevsky Val str., 127055, Moscow, Russian Federation,

tel.: (495) 983-22-86, (495) 983-22-94,

fax: (495) 983-21-41,

å-mail: LUKOIL-Engin@lukoil.com

 

Regular zonal changes of rocks physical-chemical properties towards the extended faults allowed substantiating normal-fault series of different productivity. It is proved by the example of Vategansky field. Such an analysis becomes possible due to achieving of a high level of a deposit’s studying and the availability of a sufficient number of wells. As a result, depending on the space inter-fault width, nearly three productivity rows (width from 500 to 1000 m) of wells, developing some part of the deposit with different coefficients of oil recovery (COR) are revealed. Recommendations on rational exploitation of wells for each zone of productive rocks development with different reservoir properties and productivity indices are given.

 

Key words: normal-fault area; vertical cracks; reservoir pressure; fracture; faults; well productivity; oil recovery rates; COR; oil production.

 

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UDC 622.276.66

 

ANALYSIS OF PERFORMING

OF A FORMATION HYDRAULIC FRACTURING AT THE FIELDS

OF OIL AND GAS PRODUCTION DEPARTMENT "TUYMAZANEFT"

OF JSC "BASHNEFT" (ð. 29)

 

R.R. Khaertdinov

 

JSC "Bashneft−Dobycha"

32, Kuvykin str., 452607, Oktyabrsky-city, Republic of Bashkortostan, Russian Federation,

tel.: (347) 679-38-98,

å-mail: KhaertdinovRR@bashneft.ru

 

There article discusses the main stage of preparation and per­forming of hydraulic fracturing of a formation (HF) at the wells of Oil and Gas Production Department (OGPD) "Tuymazaneft". The principal of "wells-"candidates" selection to be subjected to HG is also described. The technology of acid treatment of a for­mation bottom well area followed by a formation hydraulic fracturing re is suggested. Dynamics of production indices change during 2010–2013 is considered. The analysis of HF efficiency when performed at Tuymazinsky group of fields is carried.

 

Key words: formation hydraulic fracturing; oil; well; penetration; flexible tubing; thermal fixing; fluid; swabbing; propping agents.

 

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UDC 622.276.43

 

SUBSTANTIATION OF PLACEMENT OF TUBE OIL DEHYDRATORS

WHEN CONTROLLING WATER INJECTION AIMED AT OIL RECOVERY

INCREASE AND OIL PRODUCTION ENHANCEMENT

AT LARGE OIL FIELDS (ð. 34)

 

V.S. Nikitin, V.S. Aleinikov

 

JSC "Slavneft−Megionneftegaz"

51, Kuzmin str., 628680, Megion-city, Khanty-Mansi autonomous territory–Yugra, Russian Federation,

tel.: (346) 434-92-99, fax: (346) 434-64-91,

e-mail: pr@mng.slavneft.ru

 

V.E. Khalikova, A.A. Amirov, T.R. Vafin

 

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 some method of solving the problem of water injection control to improve oil recovery and to enhance oil production at large mature fields, when the loading level of the systems used for collection, preparation and pressure maintenance does not allow free re-direction of water volumes and construction of new booster pumping stations (BPS) and sewage pumping stations (SPS) is not economically justified or temporarily impossible. Severo-Pokursky field served an example for selecting five cluster sites to accommodate pipe water separators in order to provide preliminary water discharge. Thus, cluster sites either completely or partially are cut off from the general system of collection, preparation and formation pressure maintenance so there appears possibility of water injection increase which leads to additional oil production in the amount of 3,5…27 thou. m3 within 5 years.

 

Key words: oil recovery enhancement; pipe water separators; injection control.

 

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UDC 622.276.63

 

LABORATORY TESTING OF ACID COMPOSITIONS FOR TREATMENT

OF WELLS WITH CARBONATE AND TERRIGENOUS COLLECTORS (ð. 39)

 

Yury Veniaminovich Zeigman

 

Ufa State Petroleum Technological University

1, Kosmonavtov str., 450062, Ufa, Republic of Bashkortostan, Russian Federation

 

Vitaly Vyacheslavovich Sergeev

 

CJSC RPC "Bursintez-M"

p.o. box 39, 2, Ugreshskaya str., 115088, Moscow, Russian Federation,

å-mail: vsmyn23@gmail.com

 

Results of the carried-out laboratory testing of the acid compositions developed especially for application conditions in carbonate and terrigenous collectors of the Timano-Pechorsky oil- and gas-bearing province (Kyrtaelsky, Pashninsky, Haryaginsky oil fields) as well aso the acid compositions currently used for these collectors treatment are presented in the article. The main physical and chemical characteristics of the presented acid compositions and their compatibility with the fluids (oil, water) saturating the layer and muffling liquids various in density and structure are revealed. The solvent characteristics of the acid compositions under study are defined on the carbonate rock of the core. The article suggests some methods of carrying out a number of experiments on the researches aimed at determination of physical and chemical parameters of acid compositions, thermal stability of acid structures, compatibility of acid compositions with oil, reservoir water and muffling liquids, secondary sludge formation by results of reactions, solvent ability of acid compositions defined on a core of a collector rock. Some recommendations on acid compositions injection into a layer are given to achieve bigger efficiency from performing of a collector’s acid treatments.

 

Key words: laboratory experiments; acid composition; compatibility; solvent ability; treatment of a formation bottom-hole zone.

 

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UDC 622.276.6:576.8

 

IMPROVED TECHNOLOGY OF MICROBIOLOGICAL IMPACT

ON OIL RESERVOIR AND BOTTOMHOLE ZONE (ð. 45)

 

Tulparkhan Sharabudinovich Salavatov,

Yolchu Misir Aliyev,

Shafag Adyshirin Gabibullayeva

 

Scientific Research Institute "Geotechnological Problems of Oil, Gas and Chemistry" of Azerbaijan State Oil Academy

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

tel.: +4 (4912) 498-73-34,

å-mail: petrotech@asoa.az

 

This paper suggests some method of influence on oil reservoirs with microbiologically active systems. Formulation of com­position for microbiological influence on oil reservoirs is developed on the basis of the experimental laboratory studies. Practical field application of the composition can be accomplished by mixing of culture fluid (excessive activated sludge) in the ratio of 1:1:1 on the surface and culture medium ingredients (molasses and washing water left after olives production) as well as by its injection into the formation followed by incubation period of about 20 days.

 

Key words: oil recovery; microbiological influence; gas formation; surface tension.

 

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UDC 550.84

 

ASSESSMENT OF GAS WELLS’ TECHNICAL STATE

BY GEO-CHEMICAL METHODS (ð. 47)

 

S.N. Menshikov, S.A. Varyagov, S.V. Nersesov,
D.Yu. Oglodkov, V.N. Kozin, A.A. Mikhalev

"Gazprom dobycha Nadym, Ltd."

1, Zverev str., 629730, Nadym, Tyumen region, Yamalo-Nenets autonomous territory, Russian Federation,

tel.: (349) 956-73-53,

fax: (349) 956-71-41

 

V.L. Bondarev, V.T. Gudzenko, M.Yu. Mirotvorsky

 

CJSC "NPC Geochemistry"

16, bld. 4, Pistsovaya str., 103287, Moscow, Russian Federation,

tel.: (495) 685-12-80,

å-mail: npcgeo@mail.ru

 

With the example of a number of producing wells of Yam­soveysky and Medvezhie oil and gas-condensate fields, characterized by the presence of annular pressure, identification of gas samples is carried out on the basis of the data of complex geochemical studies (chromatography and chromatography-mass-spectrometry analysis, the definition of the isotopic composition of methane carbon). Their genetic relationship with the deposits of nizhneberezovsky sub-suite and Cenomanian commercial deposits is determined. The importance of creating standard gas facilities while carrying out the above-said studies is shown.

 

Key words: gas wells; annular pressure; geochemical studies.

 

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UDC 622.276.1/.4.001.57

 

ASSESSMENT OF POSSIBILITIES OF HYDRODYNAMIC SIMULATORS

TO IMITATE THE DEVELOPMENT OF HIGH-VISCOUS OIL FIELDS.

PART 1. CONING (ð. 52)

 

N.N. Ivantsov, S.V. Stepanov, A.V. Stepanov, I.S. Bukhalov

 

LLC "TNNC"

42, Maxim Gorky str., 625048, Tyumen, Tyumen region, Russian Federation,

tel.: (345) 279-25-75

 

Commercial hydrodynamic simulators’ testing is performed to estimate their ability to model gas or water coning for high-viscous oil fields. General tendencies in results convergence and numerical error are defined. Optimal solutions on analysis grid discreteness for reservoirs of various heterogeneity are proposed.

 

Key words: hydrodynamic simulation; simulators testing; gas/water coning; high-viscous oil; analysis grid discreteness.

 

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UDC 622.692+534-8.004.14

 

CHANGING OF COLLOID-DISPERSED PROPERTIES OF OIL SYSTEMS

USING ULTRASONIC TREATMENT (ð. 58)

 

Victor Gennadievich Prachkin,
Ayrat Gabdulkhaevich Galyautdinov

 

Ufa State Petroleum Technological University

1, office 301, 450062, Ufa, Kosmonavtov str., Republic of Baskortostan, Russian Federation,

tel.: (347) 242-08-32,

e-mail: prachckin@yandex.ru, airatg@mail.ru

 

Dmitry Anatolievich Baranov

 

Moscow State Engineering University

21/4, Staraya Basmannaya str, 105066, Moscow, Russian Federation,

tål./fax: (499) 267-07-67

 

The paper provides an overview of publications of Russian and foreign experts relating to the use of ultrasonic impact in order to change oil colloid-dispersed properties while its production, transportation and processing. The analysis of the literature suggests that the combined technologies based on ultrasonic impact allow changing the impact of colloid-dispersed properties of petroleum systems without noticeable increase of energy consumption to obtain the required rheological characteristics as well as the combined technologies based on ultrasonic impact are the most promising in terms of efficiency, energy and resources saving.

 

Key words: oil; oil disperse systems; ultrasound; cavitation; ultrasonic impact; binding energy; chemicals; resin-asphaltene components; waxes; oil transportation.

 

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UDC 665.612.2

 

PREPARATION OF ASSOCIATED PETROLEUM GAS FOR SMALL ENERGY

ON THE BASIS OF THE ADSORPTION DEVICE (ð. 64)

 

G.F. Ilóinà

 

National Research Tomsk Polytechnic University

30, Lenin prosp., 634034, Tomsk, Tomsk region, Russian Federation,

e-mail: ilgf@sibmail.com

 

M.N. Ilóina

 

The State Housing Inspection of Tomsk Region

111, Lenin prosp., 634050, Tomsk, Tomsk region, Russian Federation

 

N.N. Ilyin

 

Committee on Mineral Resources of the Administration of Tomsk region

16/1, Pushkin str., 634003, Tomsk, Tomsk region, Russian Federation

 

The paper considers the possibility of utilization of associated petroleum gas directly at the extraction site and conditions guaranteeing the compliance with the corresponding requirements on fuel quality. Comparative analysis of the composition of associated petroleum gas before and after the adsorption device is presented. For the conditions analyzed Operational reserve of adsorbing filler – chabasite – is analyzed for the given conditions.

 

Key words: oil; associated petroleum gas; adsorption; power plant.

 

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

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