{"title":"The Discrete-Imitational Modeling of the Pump-Well-Reservoir System with a Intermittent Sucker-Rod Pumping","authors":"M. Jamalbayov, N. Valiyev","doi":"10.2118/212105-ms","DOIUrl":"https://doi.org/10.2118/212105-ms","url":null,"abstract":"\u0000 The work is devoted to the problem of modeling the filtration processes of light and non-volatile oils in compressible reservoirs with low reservoir pressure, inflow to the well and intermittent pumping of oil from the well by a sucker-rod pump in a integrated system.\u0000 The system under study is considered in the context of discrete simulation modeling. It consists of the following objects: Pump, well and reservoir (well-drained zone). An algorithm has been developed for determining the pump idle time based on the criterion of the minimum cost of oil extracted during a full pump cycle.\u0000 For the first time, a computer model of the pump-well-reservoir system was created on the base of the discrete-imitational modeling concept taking into account the PVT properties of reservoir fluids and the compressibility of the reservoir rocks. The sucker-rod pumping process in a intermittent mode has been studied, the nature of the influence of the pump idle time on the efficiency of the pumping at various reservoir permeabilities has been established. The developed algorithms can be used to create smart wells.","PeriodicalId":131012,"journal":{"name":"Day 2 Wed, November 16, 2022","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131400228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Ganiev, A. Lutfullin, I. Karimov, I. Mukhliev, V. Krichevsky, L. Zinurov, Ramil Mingaraev, D. Gulyaev, R. Farakhova
{"title":"Mature Fields Oil Production Enhancement by Pulse Code Testing","authors":"B. Ganiev, A. Lutfullin, I. Karimov, I. Mukhliev, V. Krichevsky, L. Zinurov, Ramil Mingaraev, D. Gulyaev, R. Farakhova","doi":"10.2118/212156-ms","DOIUrl":"https://doi.org/10.2118/212156-ms","url":null,"abstract":"\u0000 Over the course of many years of production, fields that were producing for decades begin to reach mature stages. Most producers at these oilfields have high watercut, and these negative effects the oil production. However, the reason why the wells have a high watercut may not even be related to injectors which cause reservoir flooding, or to bottom-water coning. Typically, the cause of flooding in producers are behind casing and inside casing circulations, tubing leaks, bottom hole leaks, etc., while hydrocarbon reserves around such wells remain unprocessed. After performing water shut-offs on wells with these complications, it is now possible to reduce watercut and also develop poorly drained reserves. The purpose of this paper is to identify \"problematic\" wells which have high watercut and contain potentially uncovered reserves, which can be fixed by water shut offs to increase recovery factor.","PeriodicalId":131012,"journal":{"name":"Day 2 Wed, November 16, 2022","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115805970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reservoir Characterization of a Naturally Fractured Reservoir Using Well Test Data Interpretation","authors":"A. Ibragimov","doi":"10.2118/212068-ms","DOIUrl":"https://doi.org/10.2118/212068-ms","url":null,"abstract":"\u0000 The Karachaganak field is a massive reef carbonate structure with relatively homogeneous rock properties distribution in the platform region. In many wells in the field, well test data interpretation at late time observations show closed boundary or flow in the system with multiple sealing faults, which often contradicts with the geological interpretation of the field. The tested wells are generally located in geologically homogeneous platform region and are unlikely to have any kind of boundary effects. Author using numerical simulation models shows that these late time data behavior can be explained by large fracture corridors, which display high contrast in permeability to surrounding matrix rock, thus leading to different boundary effects at late times of the well test data.","PeriodicalId":131012,"journal":{"name":"Day 2 Wed, November 16, 2022","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122236279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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