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Expendable Tubulars and Controlled Oil and Water Withdrawal Increase Oil Fields Profitability

G.S. Abdrakhmanov1, F.F. Akhmadishin1, R.Kh. Muslimov2, D.V. Maksimov1, V.E. Pronin1

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Abstract. The article describes the achievements of PJSC Tatneft in the field of isolating water inflow zones in horizontal wells by expandable cross-sectional profile pipes. An example of the isolation of water inflow zones on a well that left the production for three years due to 100% water cut is given, and the dynamics of its operation for 16 years after insulation by two expandable profile packers is shown. Technologies and technical means for regulating oil and water flows in horizontal wells, multi-channel well designs for simultaneous targeted impact and operation of different sections of the reservoir (deposit) are presented. An example is given of the separation of a horizontal well into two segments controllable from the surface and graphs are shown of the dynamics of bottomhole pressures in segments obtained during the well operation. The most promising directions of science development are shown to simplify well designs and improve the quality of their fixation by cardinally solving complications emerged during the drilling process, as well as to increase the productivity of wells by controlling the flow rates of liquids that are extracted from several heterogeneous zones of oil deposits.

isolation of water inflow zones, expandable casings, inflow control valves, multi-channel well design, multi-channel lift pipes, well designs, lateral horizontal trunks, profile packers, profile uncoupler, electrical isolator, wireless communication, production rates and water cut of individual areas

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1Institute TatNIPIneft PJSC Tatneft, Bugulma, Russia
2Kazan Federal University, Kazan, Russia

For citation:

Abdrakhmanov G.S., Akhmadishin F.F., Muslimov R.Kh., Maksimov D.V., Pronin V.E. Expendable Tubulars and Controlled Oil and Water Withdrawal Increase Oil Fields Profitability. Georesursy = Georesources. 2017. V. 19. No. 3. Part 1. Pp. 191-197. DOI: