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Almetievsk, Russia

Tatneft is a Russian vertically integrated oil and gas company with headquarters in the city of Almetyevsk, in the Republic of Tatarstan. It is the sixth largest oil company in Russia. Wikipedia.

Korolev D.N.,Spectronika | Buslaev E.S.,Tatneft | Elefterov A.I.,Spectronika
Talanta | Year: 2015

Abstract A fully automated photocolorimetric method for dissolved silica in oil well water rich in sulfide and bicarbonate is proposed; the method is based on yellow silicomolybdic heteropolyacid. To eliminate the interference of sulfide a treatment with bromate is utilized. The analytical range is 1-30 mg L-1; with the automatically performed dilution it extends up to 300 mg L-1, RSD 5.5%. © 2015 Elsevier B.V. All rights reserved. Source

Bespalov A.P.,Tatneft
Neftyanoe Khozyaistvo - Oil Industry | Year: 2011

A method for calculating the specific units of the degree of service objects automation Is developed. It is noted that this technique allows to measure the degree of automation systems development in the dynamics. Source

Khisamov R.S.,Tatneft
Neftyanoe Khozyaistvo - Oil Industry | Year: 2014

In 2006, Tatneft OAO initiated application of the steam-assisted gravity drainage technology to develop the reserves of the Ashalchinskoye shallow heavy oil field. The paper presents analysis of pilot production. Field performance testifies to success of the heavy oil development project and practical feasibility of 70% of ultimate oil recovery. Source

Given are the data, reflecting the efficiency of the system of Tax Incentives for oil recovery, introduced in the Republic of Tatarstan In 1995 in three lines: continuation of marginal and high flooded well stock operation; putting Into operation of new wells, introduction of methods of enhanced reservoir recovery - and envisaging the reduction in excise tax, fee for recovered minerals, exemption of payments to the mineral resources reproduction fund. Shown is the efficiency of the introduction In 2006 of the differentiated tax on the mining operations on Romashkinskoye field, which allowed during 2007-2009 to get 3.556 rubles of additional taxes and fees on 1 ruble of allowances. Source

Iktissanov V.A.,Tatneft
Society of Petroleum Engineers - SPE Russian Oil and Gas Technical Conference and Exhibition 2010, RO and G 10 | Year: 2010

Nowadays nonconventional wells (horizontal, multilateral, Rad Tech and others) are being extensively drilled throughout the world for the development of low-profit fields. Construction of these wells enables to reduce filtration resistivity resulting in productivity index increase and costs reduction. To select the optimal well design with regard to reservoir characteristics, effective well operation and determination of filtration characteristics one should possess calculation methods for steady and unsteady liquid flow in reservoir. Few related papers have been published so far. However analytical methods for steady flowing are suitable for homogeneous beds with simple geometry and equal length laterals. Available approaches for description of pressure build up allow to account for various lateral trajectories but FEA or semi-analytical decisions methods are too labor-intensive for practical application. Therefore simple methods of productivity index determination and pressure transient test interpretation are suggested for nonconventional wells. These methods are suitable for low thickness beds. The basis of these methods is the superposition of filtration resistivity for two plane problems. Trajectory of laterals is simulated as a number of closely spaced vertical wells or nodes. The suggested method allows determining the field of application and regularities for nonconventional wells. Dimensionless fluid-movement profile calculated from steady fluid flow and a superposition method for pressure builds up in the nodes are used for determination of pressure build up. For description of build up in a node we recommend a diffusion equation in Laplace space and Stephest numerical algorithm. The problem is solved for porous and doublt porosity reservoirs. Numerical calculations show that cross-flows occur after the horizontal or multilateral well shut-down. Pressure derivative maximum testifies to low effective length of the borehole or positive skin-effect. Knowledge of effective intervals length is critical to pressure curve interpretation. Copyright 2010, Society of Petroleum Engineers. Source

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