Automation, Telemechanization and Communication in Oil Industry

The article attracts attention to the necessity of determination of the wellbores real position immediately during the drilling process by direct measurement and data transmission over a wireless electric channel of communication of a well’s bottom area with a well’s head. The shortcomings of the existing devices used to measure the zenith angle of wellbores’ deviation are identified. The new sensor construction using Hall field sensor as a rotational angle converter into an electric signal is described. The substantiation of the necessity of using electronic components in the downhole measurement instrumentation, manufactured by SOI-technology application, in order to expand the temperature range of the operation is given. The description of the sensor’s operational principle is presented.

Key words: zenith angle; well; measurement; Hall field sensor; SOI-technology; reliability; temperature range; magnetic field intensity; sensitivity.

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UDC 681.5:622.24

APPLICATION OF QUADRATURE PHASE SHIFT KEYING

WITH CUBIC SPLINE INTERPOLATION IN MEASUREMENTS

WHILE DRILLING (р. 8)

Dmitry Vladimirovich Zhezhelenko, post-graduate student

Tyumen Industrial University

70, Melnikayte str., Tyumen, 625038, Russian Federation,

tel.: (3452) 28-30-17,

e-mail: Dzhezhelenko@slb.com

The article proposes a new data mode transfer (DM), while wells drilling, through a hydraulic communication channel, based on quadrature phase shift keying with cubic spline interpolation. The research is justified by the need of root cause elimination of a measure-while-drilling (MWD) modulator failure. The obtained results proved the efficiency of the proposed method of data transfer in relation to maintenance of non-failure operation of wells’ telemetry.

Key words: telemetry; reliability; interpolation; spline; hydraulic communication channel; quadrature phase shift keying; modulator; rotor.

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UDC 681.5:622.276

APPLICATION OF JEWEL BEARINGS AS CRITICAL MICRONOZZLES

FOR CALIBRATION OF GAS METERS (р. 11)

Sergey Viktorovich Rainchik, senior researcher,

Aydar Vilorovich Mingaleev, deputy-head of the Department

Federal State Unitary Enterprise "All-Russian Research Institute of Flow Metering" (FGUP VNIIR)

7a, Vtoraya Azinskaya str., Kazan, Republic of Tatarstan, 420088, Russian Federation,

tel.: +7 (843) 272-01-12,

e-mail: nio13@VNIIR.org

The article presents the description of critical nozzles the most widely-spread elements of operational standards when verifying and calibrating gas meters. The problems which arise when manufacturing nozzles of small consumption are considered. To solve the problem, it is proposed to use jewel bearings which are produced in great amount by watch makers. The pros and cons related to jewel bearings use are described. The sample of dependence of the flow coefficient of a critical micro-nozzle manufactured from a jewel bearing on Reynolds number is presented. Besides, the advantage of jewel bearings usage as a means of labor intensity reduction during working standards manufacture to verify domestic gas meters is noted.

Key words: gas flowrate; critical nozzle; working standard; jewel bearings; adaptability to manufacture; labor intensity.

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UDC 681.5:622.276

DECISION-MAKING WHEN SOLVING PROBLEMS

OF A POTENTIAL OIL-BEARING REGION UNDER Z-INFORMATION (р. 14)

Lala Mekhtievna Zeinalova, Cand. of techn. sci., assistant professor

Azerbaijan State Oil and Industry University

34, Azadlig prosp., Baku, AZ1010, Republic of Azerbaijan,

tel.: (+99450) 250-16-46,

е-mail: lzeynalova@list.ru

In modern conditions, oil production process is complex and ambiguous, taking place in conditions of uncertainty and requiring a precise knowledge of all the internal and external factors. However, in many cases, it is impossible to get the complete information. A partial absence of knowledge and fuzziness are some of uncertainty aspects. Zade L. suggested a Z-number concept, based on the initial information reliability. The present paper uses Z-information for decision-making in the field of oil production problems and suggests the pattern of decision-making on the basis of Z-numbers. The method is associated with the construction of a non-additive measure, lower look-ahead and its use in Choquet integral for constructing a utility function.

Key words: Z-number; fuzzy sets; Choquet integral; lower look-ahead; decision making.

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UDC 681.5:622.276

CROSS-RECURRENT ANALYSIS

OF OIL PRODUCTION’S INTERACTION SYSTEMS (р. 23)

Sevindzh Rasul Mustafaeva

Azerbaijan State Oil and Industry University

34, Azadlig prosp., Baku, AZ1010, Republic of Azerbaijan,

tel.: (+99477) 511-82-81,

e-mail: mustafayeva_81@mail.ru

The paper is devoted to the interaction of chaotic and stochastic heterogeneous systems. Determining of fractal measurements allows to get the phase image of the system, i. e. evolution behavior of the system. The method of getting the new structures which can efficiently be used at oil production sites when displacing oil by water is presented.

Key words: cross-recurrent diagrams; reflective selection; quasi-chaotic process; fractals; phase paths.

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UDC 622.279:681.5

APPROXIMATION MODELS OF GAS INFLOW TO WELLS AND

CALCULATION OF PREDICTIVE FLOW RATES (р. 25)

Vladimir Alexandrovich Tolpaev, Dr. of phys.-math. sci., Professor, Head of the Laboratory,

Ramiz Alidzhavad Gasumov, Dr. of techn. sci., Professor, First Deputy General Director, Deputy Chairman of the Board,

Kurban Sapizhullaevich Akhmedov, Cand. of techn. sci., Head of department,

Svetlana Anatolievna Gogoleva, Researcher, post-graduate student

JSC "North-Caucasus Research and Design Institute of Natural Gas" ("SevKavNIPIgaz")

419, Lenin str., 355035, Stavropol, Russian Federation,

tel. +7 (8652) 56-30-26,

e-mail: TolpaevVA@scnipigaz.ru, GasumovRA@scnipigaz.ru, AhmedovKS@scnipigaz.ru,

GogolevaSA@scnipigaz.ru

The qualitatively new approach to predictive parameters calculation of gas wells operation, namely approximation models of filtration, is proposed. The algorithm and block-diagram of calculation of models approximation parameters based on gas wells’ geological and production data accumulated over the past years are presented. Examples of test calculations based on real data of wells’ predictive flow rates are given.

Key words: gas; super-compressibility coefficient; geological and production data; pressure; depression; operational reports; technological modes; gas wells hydrodynamic research; approximation models; predictive flow rates.

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UDC 519.684.6+622.691-50

CALCULATION MODELS EVOLUTION OF GAS TRANSPORTATION (р. 37)

Sergey Vladimirovich Spiridonov, engineer

Institute of Management Problems Russian Academy of Sciences (IPU RAN)

65, Profsoyuznaya str., 117997, Moscow, Russian Federation,

tel.: +7 (495) 334-89-10,

e-mail: spirid@ipu.ru

The article overviews the approaches to the problems solution of operational dispatch control over gas main transportation starting with the problem general formulation of modeling of gas hydrodynamic motion to contemporary models applied in various conditions, as well as with account of the problems which arise when solving them. Both the main theoretical models and practical formulas, applied for calculations of gas transport system (GTS) are considered. It shows a the transition from the theoretical models to the calculation ones with account of the computational tools development up to the modern multi-processing computing systems of cluster type is shown. The solution of parallel computing application based on multiprocessor computing systems of complex GTS is discussed. The evolution of theoretical models, passing from the problem’s general formulation in the works of I.A. Charny, through various simplifications due to the presence of unsolved scientific and technical problems at the time to gradual complication and the inclusion of additional factors caused by the development of the corresponding mathematical methods and their implementation on the basis of modern computing systems is traced.

Key words: gas transportation system; gas transportation modeling; automated system of dispatching control; on-line dispatching management; parallel computing; multiprocessor computing systems; computing cluster; unified system of gas supply.

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UDC 681.5:004.4

STEP-GRAPH GRAPHICAL PROGRAMMING LANGUAGE

OF MULTIDIMENSIONAL INTERVAL-LOGIC REGULATORS (р. 43)

Andrey Fedorovich Antipin, Cand. of techn. sci., assistant professor

Bashkir State University, Sterlitamak branch

49, Lenin prosp., 453103, Sterlitamak, Russian Federation,

e-mail: andrejantipin@ya.ru

STEP-GRAPH graphical programming language developed by the author of the present article is discussed. It is designed to support the development of the programs of the multidimensional fuzzy interval-logic regulators. The stages of the program code development, starting from the functional blocks addition, their parameters adjustment and in-between connections to formation of the complete system of condition-action rules and the implementation of the analysis are described. The example of STEP-GRAPH language use when writing a program of multidimensional fuzzy interval-logic regulator in the automatic control system of technological process is presented.

Key words: multidimensional interval-logic regulator; fuzzy regulator; programming language; automatic control; standard IEC 61131-3; SIMATIC; condition-action rule; term.

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

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