{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:40:53Z","timestamp":1750308053012,"version":"3.41.0"},"reference-count":9,"publisher":"Georesursy LLC","issue":"4","funder":[{"DOI":"10.13039\/501100012190","name":"Ministry of Science and Higher Education of the Russian Federation","doi-asserted-by":"publisher","award":["075-11-2019-032"],"award-info":[{"award-number":["075-11-2019-032"]}],"id":[{"id":"10.13039\/501100012190","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:p>One of the strategic ways in the development of multilayer fields is to identify the source of water inflow into the well production and, as a result, to eliminate it with subsequent optimization of the production of non-watered formations. A method for assessing the degree of water cut in formations based on the quantitative characteristics of the composition of the produced water is proposed in this article. The study of a wide collection of produced water samples made it possible to trace the change in its geochemical composition depending on the age of formation of the reservoir in the Volga-Ural region.The microelements and macro element composition of water, as well as its isotopic composition were investigated. The water of different layers differs in some of the elements, which are called \u00abkey elements\u00bb. Using the methods of mathematical statistics at 2 reservoir objects operated by a common filter, the incoming water was divided into fractions depending on the geochemical composition. It is shown which of the layers has more water out. The feasibility of carrying out these geochemical studies was confirmed by blocking one of the production wells operating in 2 layers, the most watered interval according to geochemical studies, as a result of which the water cut of the well production decreased from an average of 75% to 4% and is observed for several months, the oil production rate increased from 1\u20132 t\/day to 2.5\u20133 t\/day and remains at a constant level.<\/jats:p>","DOI":"10.18599\/grs.2020.4.93-97","type":"journal-article","created":{"date-parts":[[2020,12,25]],"date-time":"2020-12-25T11:30:15Z","timestamp":1608895815000},"page":"93-97","source":"Crossref","is-referenced-by-count":5,"title":["Improving efficiency of oil recovery and finding a source of watering in multi-zone deposits by geochemical methods of research"],"prefix":"10.18599","volume":"22","author":[{"given":"Maria S.","family":"Shipaeva","sequence":"first","affiliation":[{"name":"\u201cHard-to-Recover Reserves Simulation\u201d Research and Educational Center, Kazan Federal University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ilyas A.","family":"Nuriev","sequence":"additional","affiliation":[{"name":"JSC \u00abKonsaltingovy Tsentr\u00bb"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nikolay V.","family":"Evseev","sequence":"additional","affiliation":[{"name":"CJSC \u201cAloil\u201d"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timur R.","family":"Miftahov","sequence":"additional","affiliation":[{"name":"CJSC \u201cAloil\u201d"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vladislav A.","family":"Sudakov","sequence":"additional","affiliation":[{"name":"\u201cHard-to-Recover Reserves Simulation\u201d Research and Educational Center, Kazan Federal University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Artur A.","family":"Shakirov","sequence":"additional","affiliation":[{"name":"\u201cHard-to-Recover Reserves Simulation\u201d Research and Educational Center, Kazan Federal University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"7924","published-online":{"date-parts":[[2020,12]]},"reference":[{"key":"ref0","unstructured":"Fedorova A.F., Shits E.Yu. (2011) Methodological complex for studying the chemical compatibility of formation waters with highly mineralized oil displacement agents. Georesursy, geoenergetika, geopolitika. (In Russ.)"},{"key":"ref1","unstructured":"Gall L.N., Kurochkin V.E. (2002). Mass spectrometric devices for \u201cpriority areas of science, technology and technology of the Russian Federation. Nauchnoe priborostroenie, 12(2), pp. 3\u20139. (In Russ.)"},{"key":"ref2","unstructured":"Gilmanova R.Kh., Egorov A.F., Krotov S.A., Ziyatdinov R.R. (2012). Influence of lithology on the resistance of oil-saturated carbonate reservoirs in the transition zone and their development. Neftepromyslovoe delo, 1, pp. 84\u201389. (In Russ.)"},{"key":"ref3","unstructured":"Demir I. (1995). Formation Water Chemistry and Modeling of Fluid-Rock Interaction for Improved Oil Recovery in Aux Vases and Cypress Formations, Illinois Basin."},{"key":"ref4","unstructured":"Geology Reference Manual. http:\/\/www.geolib.net\/oilgasgeology\/plastovye-vody-neftyanyh-gazovyh-mestorozhdeniy. (In Russ.)"},{"key":"ref5","unstructured":"Kartsev A.A. (1972). Hydrogeology of oil and gas fields. Moscow: Nedra, 280 p. (In Russ.)"},{"key":"ref6","unstructured":"Kosarev V.E. (2009). Control over the development of oil and gas fields. Kazan: Kazan State University, 145 p. (In Russ.)"},{"key":"ref7","unstructured":"Poroshin V.D., Mulyak V.V. (2004). Methods for processing and interpreting hydrochemical data when monitoring the development of oil fields. Moscow: Nedra, 220 p. (In Russ.)"},{"key":"ref8","unstructured":"Sulin V.A. (1935). Waters of oil fields of the USSR. Moscow-Leningrad: ONTI NKTP SSSR, 366 p. (In Russ.)"}],"container-title":["Georesursy"],"original-title":[],"language":"en","deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T15:20:03Z","timestamp":1750260003000},"score":1,"resource":{"primary":{"URL":"https:\/\/old.geors.ru\/archive\/article\/1066\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,12]]},"references-count":9,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2020,12]]},"published-print":{"date-parts":[[2020,12]]}},"URL":"https:\/\/doi.org\/10.18599\/grs.2020.4.93-97","archive":["Internet Archive"],"relation":{},"ISSN":["1608-5078","1608-5043"],"issn-type":[{"type":"electronic","value":"1608-5078"},{"type":"print","value":"1608-5043"}],"subject":[],"published":{"date-parts":[[2020,12]]}}}