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The influence of the chemical composition of stratal water of the oil-gas fields of western Siberia on reservoir exploitation |
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| Authors: | T A Kireeva O V Guseva R M Sudo |
| Institution: | 1. Faculty of Geology, Moscow State University, Moscow, 119899, Russia 2. OOO NIPI Nefti I Gaza, Moscow, Russia 3. All-Russian Geological Research Petroleum Institute, Moscow, Russia |
| Abstract: | In this work, the hydrochemical properties of the stratal water of several oil-gas fields of Western Siberia with normal and inverse vertical hydrochemical zonation are discussed. Maps of the injected water distribution, which were created on the basis of high bicarbonate ion concentration in the stratal water (to 30 eq wt %), as well as the computer modeling results of calcite precipitation in stratal water that results from the mixture of two water types: calcium chloride (injected) and sodium bicarbonate (stratal), are given. In addition, the need to consider the hydrochemical type of water when choosing the technique of hydrochemical data processing was established. |
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