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2018/2
Method of determining dimensions of corrosion defects of elements of offshore oil and gas facilities based on their temperature state
Geosciences

Authors: Ivan Viktorovich STAROKON’ graduated from Gubkin Russian State university of Oil and Gas in 2001. Candidate of Technical Sciences, Head of the Department of „Automation of Design of Oil and Gas Industries” of Gubkin Russian State university of Oil and Gas (National Research University). Expert of the highest qualification in industrial safety of the Federal Service for Ecological, Technological and Nuclear Supervision of the Russian Federation. Author of more than 80 scientific publications.
E-mail: starokon79@mail.ru

Abstract: Offshore oil and gas field facilities are exposed to various impacts, corrosion being the most intensive. The results of the experiments are presented and a technique is proposed for estimating the size of corrosion defects on the basis of the difference between defect-free and corrosion-affected zones. The technique will allow to determine with a high efficiency the dimensions of corrosion lesions and to evaluate their impact on the safety of operation of offshore oil and gas facilities

Index UDK: 622.242.422 622.276.04 622.279.04

Keywords: offshore oil and gas field structures, resource evaluation, thermal diagnostics, thermal diagnostics, corrosion defects

Bibliography:
1. Borodavkin P.P. Morskie neftegazovye sooruzheniya: uchebnik dlya vuzov. CHast’ 1. Konstruirovanie. M.: OOO „Nedra-Biznescentr”, 2006, 555 p.
2. Bogdanov YA.A. Problemy obespecheniya nadezhnosti morskih stacionarnyh platform dlya dobychi nefti i gaza. Sovremennye problemy nauki i obrazovaniya, 2013, no. 2.
3. Vavilov V.P. Infrakrasnaya termografiya i teplovoj kontrol’. Izdatel’skij dom „SPEKTR”, 2009, 544 p.
4. Starokon’ I.V. Analiz otechestvennoj normativnoj dokumentacii po bezopasnosti ehkspluatacii morskih neftegazovyh sooruzhenij (MNGS)//Estestvennye i tekhnicheskie nauki, 2009, no. 6 (44), p. 346–347.
5. Starokon’ I.V. Osnovy teorii i praktiki obrazovaniya ustalostnyh treshchin na morskih neftegazovyh sooruzheniyah. Sovremennye problemy nauki i obrazovaniya, 2012, no. 4.
6. Starokon’ I.V. O rezul’tatah chislenno-analiticheskogo modelirovaniya vozdejstviya pere-mennyh i uslovno stacionarnyh temperaturnyh polej na razvitie ustalostnyh treshchin morskih neftegazovyh sooruzhenij (MNGS). Fundamental’nye issledovaniya, 2013, no. 1 (ch. 1), p. 153–158.
7. Starokon’ I.V. Metodika ocenki vozdejstviya solnechnogo izlucheniya na temperaturnoe sostoyanie morskih stacionarnyh platform. Sovremennye problemy nauki i obrazovaniya, 2014, no. 2.
8. Starokon’ I.V. Issledovanie vliyaniya okruzhayushchej sredy na teplovoe sostoyanie konstruktivnyh ehlementov opornyh blokov morskih stacionarnyh platform. Sovremennye problemy nauki i obrazovaniya, 2014, no. 5.
9. Starokon’ I.V. Teoreticheskie osnovy i prakticheskie rezul’taty issledovaniya napryazhennogo sostoyaniya opornyh blokov morskih stacionarnyh platform. Fundamental’nye issledovaniya, 2014, no. 12-5, p. 941–946.
10. CHulkov A.O. Razrabotka metoda i apparatury aktivnogo teplovogo kontrolya metallicheskih i kompozicionnyh materialov i izdelij. Dissertaciya na soiskanie uchenoj stepeni kandidata tekhnicheskih nauk. Tomsk, 2015, 141 p.

2017/3
Scientific basis of thermal fields formation and prospects of thermodynamic methods to assess offshore oil and gas structures reliability
Technical sciences

Authors: Ivan V. STAROKON’ graduated from Gubkin Russian State University of Oil and Gas in 2001. He is Candidate of Technical Sciences, Head of the Department of Automated Design of Oil and Gas Industry Structures of Gubkin Russian State University of Oil and Gas (National Research University). He is sate expert of the for Industrial Safety of the Federal Service for Ecological, Technological and Nuclear Supervision of the Russian Federation. He is author of more than 80 scientific publications.
E-mail: starokon79@mail.ru

Abstract: The offshore oil and gas structures are exposed to solar radiation, which leads to the change of their thermal state. This brings about various effects such as thermal stresses and deformation or inhomogeneity of the thermal state in the areas with defects. The article proposes a methodology for assessing the dynamics of formation of thermal fields caused by solar exposure. The technique enables to model the processes of heating and cooling of offshore oil and gas structures, which in turn will allows to adjust the assessment of their stress-strain state and to develop a method to detect defects of different origin on the basis of thermal diagnostics

Index UDK: 622.242.422:622.276.04:622.279.04

Keywords: offshore oil and gas structures, fatigue cracks, restoredweld joint, life assessment, thermal diagnostics, defects

Bibliography:
1. Borodavkin P.P. Morskie neftegazovye sooruzheniya: uchebnik dlya vuzov. CHast’ 1. Konstruirovanie. M.: OOO «Nedra-Biznescentr», 2006, p. 555.
2. Matveev L.T. Kurs obshchej meteorologii. Fizika atmosfery. L.: Gidrometeoizdat, 1984, p. 506.
3. Samojlov D.V. Raschet velichiny postupleniya teploty ot solnechnoj radiacii na poverhnost’ Zemli: metodicheskie ukazaniya/Pod red. YU.V. Peshti. M.: Izdatel’stvo MGTU im. N.EH. Baumana, 2006, p. 20.
4. Starokon’ I.V. Osnovy teorii i praktiki obrazovaniya ustalostnyh treshchin na morskih neftegazovyh sooruzheniyah. Sovremennye problemy nauki i obrazovaniya, 2012, no. 4.
5. Starokon’ I.V. O rezul’tatah chislenno-analiticheskogo modelirovaniya vozdejstviya peremennyh i uslovno stacionarnyh temperaturnyh polej na razvitie ustalostnyh treshchin morskih neftegazovyh sooruzhenij (MNGS). Fundamental’nye issledovaniya, 2013, no. 1 (ch. 1), p. 153-158.
6. Starokon’ I.V. Metodika ocenki vozdejstviya solnechnogo izlucheniya na temperaturnoe sostoyanie morskih stacionarnyh platform. Sovremennye problemy nauki i obrazovaniya, 2014, no. 2.
7. Starokon’ I.V. Issledovanie vliyaniya okruzhayushchej sredy na teplovoe sostoyanie konstruktivnyh ehlementov opornyh blokov morskih stacionarnyh platform. Sovremennye problemy nauki i obrazovaniya, 2014, no. 5.

2016/4
Evaluating environmental impact on life of offshore oil and gas structures
Technical sciences

Authors: Ivan V. STAROKON’ graduated from Gubkin Russian State University of Oil and Gas in 2001. He is Candidate of Technical Sciences, Head of the Department of Automated Design of Oil and Gas Industry Structures of Gubkin Russian State University (National Research University) of Oil and Gas. He is sate expert of the for Industrial Safety of the Federal Service for Ecological, Technological and Nuclear Supervision of the Russian Federation. He is author of more than 80 scientific publications.
E-mail: starokon79@mail.ru

Abstract: The problems of evaluating environmental effects on the life of offshore oil and gas facilities are discussed. The methods used in domestic and international regulatory frameworks to assess the life of offshore oil and gas facilities are analyzed. It is noted that the issues of loads, causing variable voltages are given considerable attention, but „the effects of influence”, which also create different variable voltages, are not well considered. At the present time there is no technique with respect to offshore oil and gas installations that would allow to describe the nature of these effects and deduce numerical-analytical dependences of influence of these effects on the life of offshore oil and gas facilities. Therefore, the problem is posed by the author to systematize the influence on the life of offshore oil and gas facilities, and to develop a mathematical tool that allows to identify specific numerical values of the variable voltages caused by these effects.

Index UDK: 622.242.422:622.276.04 622.279.04

Keywords: offshore oil and gas structures, life, corrosion, vibration, temperature, exposure

Bibliography:
1. Borodavkin P.P. Morskie neftegazovye sooruzhenija: uchebnik dlja vuzov. Chast’ 1. Konstruirovanie. M.: OOO „Nedra-Biznescentr”, 2006, 555 p.
2. VRD 39-1.10-004-99. Metodicheskie rekomendacii po kolichestvennoj ocenke sostojanija magistral’nyh gazoprovodov s korrozionnymi defektami, ih ranzhirovanija po stepeni opasnosti i opredeleniju ostatochnogo resursa. M.: OAO „Gazprom”, 2000, 49 p.
3. Gubajdulin R.G., Gubajdulin M.R., Tin’gaev A.K. Opredelenie ostatochnogo resursa opornogo bloka morskoj stacionarnoj platform. Akademicheskij vestnik UralNIIproekt RAASN, 2012, no. 1, p. 80–85.
4. Kogaev V.P., Serensen S.V. i dr. Nesushhaja sposobnost’ i raschety detalej mashin na prochnost’. Rukovodstvo i spravochnoe posobie. M.: Mashinostroenie, 1975, 488 p.
5. Klykov N.A. Raschet harakteristik soprotivlenija ustalosti svarnyh soedinenij. M.: Mashinostroenie, 1984, 160 p.
6. Starokon’ I.V. Osnovy teorii i praktiki obrazovanija ustalostnyh treshhin na morskih neftegazovyh sooruzhenijah. Sovremennye problemy nauki i obrazovanija, 2012, no. 4.
7. Starokon’ I.V. Metodika ocenki vozdejstvija solnechnogo izluchenija na temperaturnoe sostojanie morskih stacionarnyh platform. Sovremennye problemy nauki i obrazovanija, 2014, no. 2. URL: http://science-education.ru/ru/article/view?id=12713
8. Timoshenko S.P., Jang D.H. Kolebanija v inzhenernom dele. Per. s angl. L.G. Kornejchuka; pod red. Je.I. Grigoljuka. M.: Mashinostroenie, 1985, 472 p.

2016/3
Results of experimental study of processes of fatigue fracture in recovered welded joints of offshore oil and gas installations
Technical sciences

Authors: Ivan V. STAROKON graduated from Gubkin Russian State University of Oil and Gas in 2001. He is Candidate of Technical Sciences, Head of the Department of Automated Design of Oil and Gas Industry Structures of Gubkin Russian State University (National Research University) of Oil and Gas. He is sate expert of the for Industrial Safety of the Federal Service for Ecological, Technological and Nuclear Supervision of the Russian Federation. He is author of more than 80 scientific publications.
E-mail: starokon79@mail.ru

Abstract: The study of fatigue processes occurring in the reconstructed welded joints, is an urgent task, allowing to define the terms of safe operation of offshore oil and gas installations. At the present time estimation of the resource of the recovered welded joints is not possible, because existing theories only allow us to calculate the resource for new joints. In this connection research facilities were developed to study "K" and "T" shaped welds used in the offshore oil and gas installations. During the experiment fracturing was initiated in the new welded joint, and then the joint was repaired and destroyed again. Based on these experiments, mathematical relationships were derived to describe the process of fatigue failure in the recovered welds in offshore oil and gas installations. These depend on the number of cycles and amplitude values of stresses. Factors causing their premature fatigue failure were analyzed and recommendations for assessing the resource of the recovered welds were proposed

Index UDK: 622.242.422:622.276.04:622.279.04

Keywords: offshore oil and gas structures, fatigue cracks, restored welds, resource evaluation

Bibliography:
1. Borodavkin P.P. Morskie neftegazovye sooruzhenija: Uchebnik dlja vuzov. Chast’ 1. Konstruirovanie. M.: OOO „Nedra-Biznescentr”, 2006, 555 p.
2. Gubajdulin R.G., Gubajdulin M.R., Tin’gaev A.K. Opredelenie ostatochnogo resursa opornogo bloka morskoj stacionarnoj platformy. Akademicheskij vestnik UralNIIproekt RAASN, 2012, no. 1, p. 80–85.
3. Kogaev V.P., Serensen S.V. i dr. Nesushhaja sposobnost’ i raschety detalej mashin na prochnost’: Rukovodstvo i spravochnoe posobie. M.: Mashinostroenie, 1975, 488 p.
4. Klykov N.A. Raschet harakteristik soprotivlenija ustalosti svarnyh soedinenij. M.: Mashinostroenie, 1984, 160 p.
5. Starokon’ I.V. Osnovy teorii i praktiki obrazovanija ustalostnyh treshhin na morskih neftegazovyh sooruzhenijah. Sovremennye problemy nauki i obrazovanija, 2012, no. 4.
6. Steklov O.I. Prochnost’ svarnyh konstrukcij v agressivnyh sredah M.: Mashinostroenie, 1976, 200 p.
7. Trufjakov V.I. Ustalost’ svarnyh soedinenij. Kiev: Naukova dumka, 1973, 216 p.

2011/4
Application of Regression Statistical Models and Finite Element Method for Solving the Problems of Heat-Insulated Pipes Reliability
Design, construction and operation of pipeline transport

Authors: Igor Е. LITVIN was born in 1954, graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1976. He is Doctor of Technical Sciences, Professor of the Department of Computer Aided Design of Oil and Gas Industry Facilities at Gubkin Russian State University of Oil and Gas. Аuthor of 62 scientific works in the field of strength and reliability of pipelines and industrial facilities. E-mail: litvin_igor@inbox.ru
Ivan V. STAROKON was born in 1979, graduated from Gubkin Russian State University of Oil and Gas in 2000, Ph.D., assistant professor of the Department of Computer Aided Design of Oil and Gas Industry Facilities at Gubkin Russian State University of Oil and Gas. Аuthor of 27 scientific papers in the field of computer-aided design facilities. E-mail: litvin_igor@inbox.ru
Sergey V. SHISHKIN was born in 1979, graduated from the Faculty of Mining and Petroleum Engineering of MGOU. He is research student of the of the Department of Computer Aided Design of Oil and Gas Industry Facilities at Gubkin Russian State University of Oil and Gas. Аuthor of 2 scientific papers in the field of design and operation of pipelines. E-mail: litvin_igor@inbox.ru

Abstract: The article presents the results of the regression statistical models and the finite element method for solving the problems of heat-insulated pipes reliability

Index UDK: 621.64

Keywords: regression statistical model, finite element method, reliability, insulated pipe

Bibliography: