ISSN 0132-2222 Scientific-technical journal AND COMMUNICATION IN OIL INDUSTRY published since 1973 November 2015 ¹ 11 12 issues per year
CONTENÒS |
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MEASURING, AUTOMATION, TELEMECHANIZATION AND COMMUNICATION FACILITIES |
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INFORMATIONAL, MEASURING, EXPERT, EDUCATIONAL SYSTEMS |
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MATHEMATICAL MODELING AND SOFTWARE |
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Sukmanov A.V. The method of the system structure computing used for telemetry data processing (p. 33-37) |
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Papilina T.M. Web-clients framework for the supervising personnel in oil and gas industry (p. 41-46) |
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Kim S.L., Lichagin I.Yu. Implementation of the system of a microprocessor virtual memory (p. 46-50) |
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Information on the articles (p. 50-56) |
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Information on the articles |
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OPERATIONAL PRINCIPLES AND USE OF SPECIAL SCALES VSPM WHEN DETERMINING THE VOLUME OF THE 1ST CLASS REFERENCE METERING DEVICES (ð. 4)
M.V. Senyansky, P.I. Makarov
CJSC VIK "Tenso-M" 38, Vokzalnaya str., 140050, Kraskovo poselok, Lyuberetsky district, Moscow region, RF
A.V. Safonov, M.A. Safonova
IMS Group 47a, Vavilov str., 117312, Moscow, RF
The article presents operational principles and use of special scales VSPM when determining the volume of the 1st class reference measuring devices.
Key words: weight; scales; reference gage; reliable measurement.
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REQUIMENTS TO THE ACCEPTANCE TEST OF THE WELLHEAD EQUIPMENT AND X-TREE ASSEMBLY OF OIL AND GAS PRODUCING WELLS MANUFACTURED IN COMPLIANCE WITH FOREIGN STANDARDS (ð. 9)
Alexey Alexandrovich Sapun, chief specialist, Oleg Alexandrovich Pavlov, chief specialist, Alexander Viktorovich Kravtsov, chief specialist, Alexander Anatolievich Moiseev, chief specialist
JSC «Safety Systems and Technologies. Techdiagnostics» 22, Yunykh Lenintsev str., 460047, Orenburg, RF, tel.: 8 (3532) 63-84-07, e-mail: contact@tdiag.ru
The article analyzes the national legislative and regulatory framework that ensures and assesses the conformity of the wellhead equipment and production tree assembly of oil and gas producing wells with the set quality and safety requirements. The results of the ultrasonic testing of three casing string heads manufactured by foreign technical standards, which do not provide continuity of ultrasonic inspection of metal and having internal discontinuities are taken as an example. The analysis and assessment of these results compliance with the requirements of national standards allows coming to the conclusion about possible operation of the equipment with such defects in the Russian Federation.
Key words: acceptance test; casing string head; quality level; ultrasonic testing; continuity monitoring; metal internal discontinuities; legislative and regulatory framework; technical regulations.
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EXPERIMENTAL STUDY OF ACOUSTIC EMISSION PARAMETERS OF LEAKS IN PRODUCTION TREE VALVES (ð. 12)
Maxim Vladimirovich Babenkov, chief specialist, Dmitry Vladimirovich Kopytov, chief specialist, Dmitry Viktorovich Gurevich, chief specialist, Mikhail Nikolaevich Kuznetsov, chief specialist
JSC «Safety Systems and Technologies. Techdiagnostics» 22, Yunykh Lenintsev str., 460047, Orenburg, RF, tel.: 8 (3532) 63-84-07, e-mail: contact@tdiag.ru
Wellhead production tree assembly like any other technical devices is subjected to wear-out thus creating the danger of gas blow-by during operation and worsening working conditions. The article presents the results of experimental study of parameters of acoustic emission leak in the valves of production trees assemblies, conducted by the specialists of JSC "Techdiagnostics". According to the results of the recording of the acoustic emission parameters in the process of opening of a number of sealed and unsealed valves, the characteristics of the AE-signal from leaks: amplitude, spectral composition are determined as well as recommendations on the adjustment of the equipment and control of production tree assembly sealing in the field conditions are given.
Key words: experimental study; leak; leak detecting methods; valve; production tree assembly; sealing; acoustic emission; signal amplitude.
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SOME SPECIFIC FEATURES OF SURFACE ROUGHNESS INFLUENCE ON ULTRASOUND ATTENUATION MEASUREMENT ERROR IN STEEL (ð. 15)
Dmitry Viktorovich Gurevich, chief specialist, Mikhail Nikolaevich Kuznetsov, chief specialist, Maxim Vladimirovich Babenkov, chief specialist, Dmitry Vladimirovich Kopytov, chief specialist
JSC «Safety Systems and Technologies. Techdiagnostics» 22, Yunykh Lenintsev str., 460047, Orenburg, RF, tel.: 8 (3532) 63-84-07, e-mail: contact@tdiag.ru
The article describes the results of the experimental assessment of surface roughness influence on the results of the measurement of ultrasonic attenuation coefficient in the plane-parallel samples of Steel 20. The experimentally obtained dependence of the ultrasonic attenuation coefficient on the surface roughness for the three most common operational frequencies of piezoelectric probes is obtained. Additional requirements to surface roughness when measuring ultrasonic attenuation are defined and recommendations on the use of the of the attenuation coefficient values damping factor when assessing the steel damage are made.
Key words: ultrasonic attenuation coefficient; surface roughness; micro-damages; ultrasonic testing; samples-imitators; amplitude; pulse-echo; ultrasonic piezoelectric probes; operating frequency.
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ASSESSMENT OF THE RELIABILITY OF THE RESULTS OF WELDS ULTRASONIC TESTING OF CHOKE ASSEMBLIES (ð. 17)
Alexey Alexandrovich Sapun, chief specialist, Alexander Viktorovich Kravtsov, chief specialist, Oleg Alexandrovich Pavlov, chief specialist, Dmitry Viktorovich Gurevich, chief specialist
JSC «Safety Systems and Technologies. Techdiagnostics» 22, Yunykh Lenintsev str., 460047, Orenburg, RF, tel.: 8 (3532) 63-84-07, e-mail: contact@tdiag.ru
The article discusses several methods envisaged by regulatory guidance documents and applied for adjusting sensitivity during ultrasonic monitoring as well as the problem of the reliability (convergence) assessment of the monitoring results that were obtained when applying different methods of sensitivity adjustment that was solved during the pilot study. Comparative analysis of the results, thus obtained, of control of T-welded joints of choke assemblies led to the conclusion about the method, application of which provides the minimum error when determining the parameters of welds defects.
Key words: reliability of non-destructive testing; choke assembly; ultrasonic control; echo-signal; acceptance level; automatic scanning system; defectogram; scanning image; grinding; error; insufficient rejection.
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THE AUTOMATED SYSTEM OF GEOLOGICAL INFORMATION PROCESSING USING WELL BOTTOM INDICATORS OF OIL AND GAS WELLS DRILLING IN COMPLICATED GEOLOGICAL-TECHNICAL CONDITIONS (ð. 20)
Yaroslav Vladimirovich Rukavitsyn, General Director, Cand. techn. sci.
CJSC "Geospector" 51-1-1, Vavilov str., 117296, Moscow, RF, tel.: +7 (910) 426-79-84, e-mail: yaros3000@yandex.ru
Samir Masudovich Mammadov, Director of the Department
LLC "NewTech Services" 31G, Shabolovka str., 115162, Moscow, RF, tel.: +7(985)771-72-52, e-mail: smammadov@nt-serv.com
Roman Nikolaevich Okishev, deputy-chief engineer
LLC "Gaspromgeologorazvedka" 70, Hertsen str., 625000, Tyumen, Tyumen region, RF, tel.: (3452) 54-09-54, e-mail: r.okishev@ggr.gasprom.ru
The principles of construction of the automated processing system of downhole dynamic processes transmitted to the surface by means of combined wireless communication channel "downhole – surface" are considered. Some algorithms of processing of downhole drilling showings based on spectral-correlation processing of dynamic processes are submitted. Examples of the prediction of the geological section and definition of the technological parameters of the mechanical drilling when using the developed automated processing system are presented.
Key words: processing; mechanical speed; drilling; downhole parameters; spectral analysis; correlation function; management; formation opening.
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IDENTIFICATION OF FRICTION FACTOR CHANGES BY MONITORING THE PARAMETERS OF GAS FLOW IN PIPELINES (ð. 27)
Mikhail Grigorievich Sukharev1,2, Doctor of techn. sci., professor, Ksenia Olegovna Kosova2, post-graduate student, Anastasia Sergeevna Gracheva2, Margarita Mikhailovna Sergantova3, associate professor
1 "LORES Engineering" LLC 2À, Zavodskaóa str., Leninsky district, 142700, Moscow region, RF
2 Gubkin Russian State University of Oil and Gas 65, bld. 1, Leninsky prosp., 119991, Moscow, RF, tel.: 8(916) 651-89-98, 8(916) 908-37-77, 8(916) 529-89-02, e-mail: mgsukharev@mail.ru, kseniya_kosova@mail.ru, chak_i@mail.ru
3 Bauman MSTU 5, bld. 1, 2-ya Baumanskaya str, 105005, Moscow, RF, tel.: 8(499) 269-00-42, e-mail: msergantova@mail.ru
The paper suggests the method to be applied for diagnosing the changes of hydraulic efficiency factor of a pipeline by means of common measurements of gas flow parameters. The problem is quite timely for dispatchers’ on-line control over a gas main transportation system. The objective of the imbalance moment identification, i.e. the moment of efficiency factor change due, for example, to the formation of hydrates inside pipes or some other reasons, is set. By means of numerical experiment, on the example of a linear part of a gas pipeline, comparison of non-parametric methods, applied for change-point identification was conducted; the efficiency of their application to handle measurements of gas-flow parameters of a gas transmission system is tested.
Key words: gas supply systems; on-line dispatcher control; identification; hydraulic efficiency factor; pipeline gas flow; friction factor changes; change-point problem; sequential analysis.
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THE METHOD OF THE SYSTEM STRUCTURE COMPUTING USED FOR TELEMETRY DATA PROCESSING (ð. 33)
Alexander Vladimirovich Sukmanov, senior lecturer of Institute of Service and Technologies
Don State Technical University 1, bld.1, Gagarin boul., 357500, Pyatigorsk, RF, tel.: +7 (918) 784-93-33, e-mail: capoaro@rambler.ru
The article presents the methodology of graph-analytical computation of the system used for telemetry data processing with account of the requirements to the telemetry system bandwidth in case of change of the binary coding bits number in the data processing system. Support of timely processing and transmission of telemetry information via communication channels is achieved through the system analysis of telemetry information processing and transmission as well as by the synthesis of the system of telemetry data collection. There was analyzed the impact of the bits number of the binary code of the digitized signal on the results of the structural synthesis of telemetry data processing system is studied; the techniques, applied to change the bits number of the binary coding in the signals convertor of telemetry information are discussed. Taking into account the values variation due to the changes in the number of connected measuring channels and the bits number of the binary coding, the nomogram, that allows visual and quick determination of the required number of sample-and-hold devices and analog-to-digital converters, as an optimal presentation form is selected. The nomogram building algorithm to synthesize the structure of the telemetry data processing system is proposed.
Key words: telemetry systems; telemetry information; data processing system; digitization of monitoring results; measuring channel; bits number of binary coding; structural synthesis of the system.
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EXPERIMENTAL CHECKING OF CALCULATION ASSESSMENT OF DEFECTIVE CHOKE ASSEMBLIES STRENGTH (ð. 38)
Alexey Alexandrovich Sapun, chief specialist, Dmitry Viktorovich Gurevich, chief specialist, Alexander Anatolievich Moiseev, chief specialist, Oleg Alexandrovich Pavlov, chief specialist
JSC «Safety Systems and Technologies. Techdiagnostics» 22, Yunykh Lenintsev str., 460047, Orenburg, RF, tel.: 8 (3532) 63-84-07, e-mail: contact@tdiag.ru
The article discusses the possibility of calculation assessment of strength of equipment pieces with defects, using numerical modeling analysis. The impact of faulty penetration and fusion of tee and fillet welds on the equipment strength is studied on the example of three experimental models of vessels choke assemblies, working under pressure, and a railway tank. Experimental assessment of the calculation results reliability of the stress-strain state choke assemblies by finite element method is carried out.
Key words: choke assembly; software package; experimental model; stress-strain state; finite element method; hydraulic pressure test.
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WEB-CLIENTS FRAMEWORK FOR THE SUPERVISING PERSONNEL IN OIL AND GAS INDUSTRY (ð. 41)
Tatiana Mikhailovna Papilina
Gubkin Russian State University of Oil and Gas 65, Leninsky prosp., 119991, Moscow, RF, tel.: +7(499) 507-85-23, e-mail: papilina.tm@asugubkin.ru
The problem of building of web-clients development framework is considered in the article. The web-clients provide a remote access to the specified simulators function set. The framework architecture and a web-client sample are described.
Key words: automated systems of dispatch control; simulation software; thin clients; cloud technologies.
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IMPLEMENTATION OF THE SYSTEM OF A MICROPROCESSOR VIRTUAL MEMORY (ð. 46)
Stanislav Leonidovich Kim, Cand. of phys.-math. sc., research fellow
Institute of Mechanics , UB RAS 34, Baramzina str., 426067, Izhevsk, RF, tel.: (3412) 567-177, e-mail: lgkim@ya.ru
Ilya Yurievich Lichagin, post-graduate student
National Research University "Moscow Institute of Electronic Technique" 1, Shokin sq., 124498, Zelenograd, RF, tel.: 8 922-682-75-33
The article discusses the principles of construction of virtual memory system for complex "systems-on-a chip". The principle of operation of a memory management unit (MMU), as a fundamental device of the virtual memory system as well as the principle of converting virtual addresses to physical ones, with account of all the parameters relating to the specific is also considered in detail. Virtual address space is abstract, the size of which can greatly exceed the space of physical memory addresses. The conversion of virtual addresses to physical ones is transparent to the processor and executable programs. The presence of virtual address space allows the programmers to write programs using the address space that is only limited by the data bus dimensionality but not the size of physical memory.
Key words: virtual memory; virtual space; virtual address; bus platform; segment descriptor; processor.
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JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY" |