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2017/4
Identifying parameters of existing wells while analyzing reservoir development data to adjust project target values
Geosciences

Authors: Zagid S. ALIEV (born 1935) graduated from Azibekov Azerbaijani industrial Institute in 1957. He is professor of the Department of Gas and Condensate Field Development and Operation at Gubkin Russian State University of Oil and Gas (National Research University). He is head and executive of projects of development of oil and gas fields of Russia, Iran, Iraq, Vietnam, Kazakhstan, Algeria, Germany, etc., and also the author of normative documents of OOO Gazprom such as instructions, manuals and standards of enterprises. He is author of 386 publications, including 37 monographs and 32 thematic brochures.
E-mail: rgkm@gubkin.ru
Denis A. MARAKOV (born 1978) graduated from Gubkin Russian State University of Oil and Gas in 2001. He is Candidate of Technical Sciences, associate professor of the Department of Gas and Condensate Field Development and Operation at Gubkin Russian State University of Oil and Gas (National Research University). He is expert in the field of development and operation of oil and gas fields and author of more than 40 publications, including 7 monographs and 5 thematic brochures in the field of the theory of development, research and operation of vertical and horizontal wells. E-mail: marakovdenis78@gmail.com

Abstract: The existing projects of gas and gas condensate fields development usually fail to substantiate the amount of research towards field management, its major purpose being reduced to annual surveys of development wells under steady-state filtration conditions aimed at determining reservoir filtration characteristics. The paper contains almost all the characteristics to be identified during the well operation in order to schedule field management works and make design project adjustments

Index UDK: 622.279

Keywords: field management, identification of reservoir characteristics, amount of research, gas flow coefficients, steady-state filtration conditions

Bibliography:
1. Pravila razrabotki gazovykh i gazokondensatnykh mestorozhdenii [The rules for the develop-ment of gas and gas condensate fields], Moscow: Nedra, 1971, 104 p.
2. Reglament sostavleniya proektnykh dokumentov po razrabotke gazovykh i gazokondensatnykh mestorozhdenii [Regulations for drawing up project documents for the development of gas and gas condensate fields]. Moscow: VNIIGAZ, 1999, 88 p.
3. Aliev Z.S., Khabibulin R.A., Pankin N.A. Analiz rezul’tatov issledovaniya skvazhin Yam-burgskogo GKM i Zapolyarnogo NGKM [Analysis of well test results of the Yamburgskoye gas condensate field and the Zapolyarnoye oil condensate field]. Kazan: KGTU, 1999, 140 p.
4. Gritsenko A.I., Aliev Z.S., Ermilov O.M., Remizov V.V., Zotov G.A. Rukovodstvo po issledovaniyu skvazhin [Well Research Guide]. Moscow: Nauka, 1995, 523 p.
5. Aliev Z.S., Somov B.E, Marakov D.A., Ismagilov R.N. Mezhplastovye i zonal’nye peretoki gazokondensatnoi smesi i ikh vliyanie na tekushchuyu dobychu kondensata [Inter-stratal and zonal flows of gas-condensate mixture and their influence on the current production of condensate]. Moscow: Nedra, 2013, 213 p.
6. Aliev Z.S., Marakov D.A., Ismagilov R.N. Osobennosti kontrolya za razrabotkoi mestorozhdenii pri ikh osvoenii gorizontal’nymi skvazhinami s veerno-kustovym razmeshcheniem [Features of control over field development with radial cluster drilling pattern]. Moscow: Nedra, 2013, 277 p.
7. Aliev Z.S., Ismagilov R.N. Gazogidrodinamicheskie osnovy issledovaniya skvazhin na gazokondensatnost’ [Basics of gas-hydrodynamic survey of gas condensate content]. Moscow: Nedra, 2012, 214 p.
8. Khudyakov O.F., Savvina Ya.D., Yushkin V.V. Instruktsiya po issledovaniyu gazokondensat-nykh mestorozhdenii na gazokondensatnost’ [Instructions for study of gas condensate content in gas condensate fields]. Moscow: Nedra, 1975, 70 p.
9. Aliev Z.S., Marakov D.A., Meshcheryakov S.V., Yan’shin V.V. Osobennosti razrabotki nizkoproduktivnykh gazokondensatnykh mestorozhdenii s bol’shim soderzhaniem kondensata s ispol’zovaniem gorizontal’nykh skvazhin [Features of the development of low-productivity gas condensate fields with a large content of condensate using horizontal wells]. Moscow: Nedra, 2016, 239 p.

2016/1
Method of registration of influence of true producing gas oil ratio on bottom hole pressure value during liquid-gas mixture flow in well bore of horizontal wells
Geosciences

Authors: Denis A. MARAKOV сandidate of Technical Sciences, associate professor of the Department of Development and Operation of Gas and Gas-Condensate Fields. He is expert in the field of development and operation of oil and gas fields and author more than 30 publications, including 7 monographs and 5 thematic brochures in the field of the theory of development, research and operation of vertical and horizontal wells. E-mail: marakovdenis78@gmail.com

Abstract: In the operating gas and gas-condensate wells the presence of liquid in the gas flow depending on its amount can significantly affect the bottom hole pressure value. The existing approximate methods of registration of the liquid presence in the gas flow to determine the bottom hole pressure were reduced to application of averaged void fraction coefficient over the entire length of the well. It is shown that application of the proposed method can improve the accuracy of determining the down hole pressure in the presence of liquid in the gas flow

Index UDK: УДК 622.279

Keywords: horizontal well, bottom hole pressure, of the true producing gas oil ratio, flow regime, consumption gas content

Bibliography:
1. Korotaev Y.P. and etc. Instructions hydrodymanic calculations gas-condensate wells. M., 1980, 59 p.
2. Aliyev Z.S. and etc. Technological operation of gas wells. М.: Nedra, 1978, p. 261.
3. Aliyev Z.S. and etc. determination of basic parameters horizontal gas wells. Publishing Center of Gubkin Russian State Oil and Gas university, 2012, 228 p.
4. Grizenko A.I. and etc. Well survey manual. M.: Science, 1995, 523 p.
5. Mamaev V.A. and etc. Flow of liquid-gas mixture in pipes. M.: Nedra, 1978, 270 p.
6. Aliyev Z.S. and etc. Theoretical and technological basis of horizontal wells application for the development of gas and gas-condensate fields. М.: Nedra, 2014, 450 p.

2015/3
Horizontal borehole section length definition in development process in gas cross flow conditions
Geosciences

Authors: Denis A. MARAKOV is сandidate of Technical Sciences, associate professor of the Department of Development and Operation of Gas and Gas-Condensate Fields. He is expert in the field of development and operation of oil and gas fields and author of more than 30 publications, including monographs and 5 thematic brochures in the field of the theory of development, research and operation of vertical and horizontal wells. E-mail: marakovdenis@rambler.ru

Abstract: Interstratal gas-condensate crossflows can occur during the exploitation of gas-condensate fields with heterogeneous thickness, even with slight hydrodynamic binder between interlayers with different capacitive and filtration properties. Cross flows result in premature emission of condensate extraction. It has been demonstrated that it is possible to evaluate the current length of the horizontal sections of the well with fair accuracy by applying the linear dependence between the speed of filtration and the pressure gradient

Index UDK: УДК 622.279

Keywords: horizontal well, current length, interstratal crossflows, pressure gradient, filtration rate

Bibliography:
1. Aliyev Z.S. & other. Gas condensate mixture cross and zonal flow and their influence to the current condensate production. М.: Nedra, 2013, p. 215.
2. Aliyev Z.S. & other. Horizontal gas well desired length definition in development process// Gas industry, 2005, no. 12, p. 45-47.
3. Aliyev Z.S. & other. Theoretical and technological basis for the use of horizontal wells for the development of gas and gas condensate fields. M.: Nedra, 2014, 450 p.

2014/4
Technique of definition of change of coefficients of filtrational resistance of horizontal wells at increase in length of a horizontal site of a trunk in the course of development
Geosciences

Authors: Zagid S. ALIEV (born 1935) graduated from Azibekov Azerbaijani industrial Institute in 1957. Dr. Professor of Gas and condensate field development and operation department. Is the head and the executive of projects of development of oil and gas fields of Russia, Iran, Iraq, Vietnam, Kazakhstan, Algeria, Germany, etc., and also the author of normative documents of JSC Gazprom — instructions, the managements, standards of the enterprises. Author of 365 publications, including 35 monographs and 30 thematic brochures. E-mail: rgkm@gubkin.ru
Elena M. KOTLYAROVA graduated from Gubkin Russian State University of Oil and Gas in 1988. Candidate of Technical Sciences, associate professor of Gas and condensate field development and operation department. The expert in the field of development and operation of gas and gas-condensate fields and UGS. The author more than 30 publications, including 1 monograph.E-mail: kotlyarova_gubkin@mail.ru
Denis A. MARAKOV Candidate of Technical Sciences, associate professor of deve-lopment and operation of gas and gas-condensate fields. The expert in the field of development and operation of oil and gas fields. The author more than 30 publications, including 7 monographs and 5 thematic brochures in the field of the theory of development, research and operation of vertical and horizontal wells.E-mail: marakovdenis@rambler.ru

Abstract: For increase in the period of continuous annual gas production from fields the number of vertical wells increases. At application of horizontal wells continuous annual selection in the course of development can be provided by increase only in length of a horizontal site that significantly increases profitability of develop-ment of a deposit. Results of influence of increase in length of a horizontal site by coefficients of filtrational resistance which are necessary for forecasting of an output are presented. The importance of work consists in the offer of a method of calculation of sizes of these coefficients in process of increase in length of a horizontal hole

Index UDK: 551

Keywords: horizontal well, relative output of a well, current length of a horizontal site, completeness of opening of a fragment, coefficients of filtrational resistance, output of horizontal wells, strip fragment of a deposit, drainage zone

Bibliography:
1. Aliev Z.S., etc. Determination of necessary length of a horizontal trunk of a gas well in the course of development. Gas industry, 2005, no. 12, pp. 45-47.
2. Aliev Z.S., Bondarenko V.V. Tekhnologiya of application of horizontal wells: Manual. M.: Oil and gas, 2006, 712 p.
3. Aliev Z.S., etc. An approximate method of search of the optimum sizes of a squared fragment and its opening for providing the maximum output of a horizontal well. Drilling and oil, 2007, no. 2, pp. 17-19.
4. Aliev Z.S., Sheremet V.V. Determination of productivity of the horizontal wells which opened gas and gas-oil layers. M.: Nedra, 1995, 131 p.
5. Aliev Z.S., etc. Determination of key parameters of horizontal gas wells. M.: Prod. RGU center of oil and gas of name I.M. Gubkina, 2012.
6. Gritsenko A.I., Aliev Z.S. Rukovodstvo on research of wells. M.: Nauka, 1995, 523 p.
7. Aliev Z.S., Bondarenko of V.V. Rukovodstvo on design of development of gas and gas-oil fields. Pechora: Pechora time, 2002, 894 p.