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2011/2
Approximate method for determining performance of horizontal gas well with partial penetration into deposit fragment in the form of sector
Drilling and development of hydrocarbon fields

Authors: Zagid S. ALIYEV was born in 1935, graduated form the Industrial Institute in Baku. He got the degree of Candidate of Technical Sciences in 1964, became Doctor of Technical Sciences in 1984. Нe is professor of the Department of the Development and Operation of Gas and Gas Condensate Fields at Gubkin Russian State University of Oil and Gas, member of the Russian Academy of Natural Sciences. He published 341 works including 52 monographs. E-mail: rgkm@gubkin.ru
Elena M. KOTLYAROVA graduated from Gubkin Russian State University of Oil and in 1988, and in 2006 defended thesis on “Development of methods of research and technology of operation of horizontal gas wells, which penetrated into heterogeneous low-productivity reservoirs (for ONGKM case study)”. She is Associate professor of the Department of Development and Exploitation of Gas and Gas Condensate Fields at Gubkin Russian State University of Oil and Gas, author of more than 20 scientific papers on the development of natural gas fields using horizontal wells. E-mail: kotlyarova_gubkin@mail.ru
Vladimir N. KOTLYAROV was born in 1962, graduated from Gubkin Russian State University of Oil and Gas in 1988 He is Head of the Laboratory of Geological and Hydrodynamic Modeling and Integrated Analysis of Wells of ITC Gazprom UGS. He is Postgraduate student of the Department of Development and Exploitation of Gas and Gas Condensate Fields at Gubkin Russian State University of Oil and Gas. E-mail: V.Kotlyarov@phg.gazprom.ru

Abstract: An approximate method for determining with an acceptable accuracy the performance of a horizontal gas well with partial penetration into the deposit in the form of a sector is proposed. To be able to determine the flow rate of a horizontal well, which penetrated into a fragment of a homogenous reservoir in the form of a sector a sector, we propose a method of replacing the sector with strip elements. The flow rate of these can be calculated using the formula for fully opened fragments.

Index UDK: 622.279

Keywords: horizontal well; fan drilling, sector penetration; penetration degree; flow rate of horizontal wells; sector element; strip fragment, average radius; variable radius; drainage area; coefficients of filtration resistance

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