Scientific and technical journal

«Proceedings of Gubkin University»

ISSN 2073-9028

Proceedings of Gubkin University

UDC: 622.279
DOI: -


Aliyev Zagid S.1,
Rebrikov Andrey A.2

1 Gubkin Russian State University of Oil and Gas
2 JSC «Smith International CIS»; Gubkin Russian State University of Oil and Gas

Keywords: thin formations, average flow rate, horizontal well, understatement, total flow rate, flow rate under partial penetration, heterogenous stratum, connectivity, overstatement, partial penetration into the well domain


As a rule well flow rates are determined as average along layer thickness due to the lack of detailed interval information under completion of heterogeneous strata. Well flow rates and coefficient values for the linear component of the gas influx equation in a horizontal well are estimated. The reliability of the estimate of the horizontal well flow rate was verified by the «accurate» numerical method using extended linear filtration law by modeling the strip domain of the well exposed by the horizontal hole. This allowed to identify the rate of influence of the quadratic component of the equation of gas influx into the horizontal well. The results of the mathematical experiments allow to identify relatively small errors of the effect of the quadratic component of the equation of gas influx into the horizontal well and thus to reduce the time of survey of these wells by reducing the number of the modes of operation and loss of gas during the surveys.


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