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- W2082334647 abstract "Abstract Research and development in the area of complex trajectory well drilling technologies, including combined with hydraulic fracturing treatment, is one of the first priorities for national and international oil producers, OAO TATNEFT is no exception. As of 1 January, 2014, in TATNEFT oil fields, 587 horizontal wells and 104 multilateral wells have been drilled, including 421 horizontal wells and 83 multilateral wells drilled in carbonate reservoirs. On the average, initial oil production rates of horizontal and multilateral wells are higher vs. vertical wells, 1.8 times and 2.4 times, respectively. The worst production parameters are characteristic of horizontal and multilateral wells, 77 and 32 wells, respectively, draining the Bashkirian-Serpukhovian formations, which testifies to poor efficiency of horizontal technologies in this type of reservoirs. Of the total number of wells targeting carbonate formations, 11 multilateral and 15 horizontal completions showed good well performance. The paper presents a number of technologies aimed at improved carbonate reservoir performance through complex trajectory wells. Optimization of development of the carbonate reservoirs in the Pionerskoye, Novo-Elkhovskoye, and Shegurchinskoye fields will allow reducing vertical drilling metreage, thus, saving on well construction and infrastructure cost. It will also result in improved reservoir flow behavior, connectivity, and enhanced oil production. It is deemed that oil production of complex trajectory wells will increase 1.5-fold vs. vertical wells. The offered horizontal technologies will help to achieve uniform oil drainage of heterogeneous formations with different reservoir properties and, increase water-free production of wells through use of expandable well completion systems involving packers and ICVs or water-swellable packers. Calculation made in reservoir models show ultimate oil recovery increase by 8-15%. The Company is planning to commercialize the technologies in the nearest future." @default.
- W2082334647 created "2016-06-24" @default.
- W2082334647 creator A5017277616 @default.
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- W2082334647 date "2014-10-14" @default.
- W2082334647 modified "2023-09-25" @default.
- W2082334647 title "Development of Carbonate Reservoirs with Complex Trajectory Wells in Republic of Tatarstan" @default.
- W2082334647 doi "https://doi.org/10.2118/171327-ms" @default.
- W2082334647 hasPublicationYear "2014" @default.
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