Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows

The article deals with the increase of profitability of water shutoff treatment (WST), which is used to eliminate behind-the-casing flows (cross-flow) in production and injection wells. It is presented that modern technologies of water shut-off works have low efficiency (success rate), especially in...

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Main Authors: Rakhmaev L.G., Odayev V.D.
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_01011.pdf
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spelling doaj-b418dde6b1ee493aaa4580c09f4330262021-06-11T07:18:50ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012660101110.1051/e3sconf/202126601011e3sconf_ti2021_01011Improving the efficiency of well workover solutions for the elimination of behind-the-casing flowsRakhmaev L.G.0Odayev V.D.1Expert at the Center for Technological DevelopmentTechnician at the Center for Technological DevelopmentThe article deals with the increase of profitability of water shutoff treatment (WST), which is used to eliminate behind-the-casing flows (cross-flow) in production and injection wells. It is presented that modern technologies of water shut-off works have low efficiency (success rate), especially in liquidation of non-perforating interval. Inefficient (wasteful) injection is currently one of the main problems in the development of oil and gas fields, as it significantly reduces the oil recovery factor in addition to the huge costs for oil companies for injection (operating costs). The article presents the results of hydrodynamic research and proposes methods for determining the presence of behind-the-casing flows (BCF) and methods for detecting wasteful injection without geophysical well-logging (a non-standard approach). The article also presents equipment for the elimination of the behind-the-casing flow and technology of its implementation.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_01011.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Rakhmaev L.G.
Odayev V.D.
spellingShingle Rakhmaev L.G.
Odayev V.D.
Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
E3S Web of Conferences
author_facet Rakhmaev L.G.
Odayev V.D.
author_sort Rakhmaev L.G.
title Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
title_short Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
title_full Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
title_fullStr Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
title_full_unstemmed Improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
title_sort improving the efficiency of well workover solutions for the elimination of behind-the-casing flows
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2021-01-01
description The article deals with the increase of profitability of water shutoff treatment (WST), which is used to eliminate behind-the-casing flows (cross-flow) in production and injection wells. It is presented that modern technologies of water shut-off works have low efficiency (success rate), especially in liquidation of non-perforating interval. Inefficient (wasteful) injection is currently one of the main problems in the development of oil and gas fields, as it significantly reduces the oil recovery factor in addition to the huge costs for oil companies for injection (operating costs). The article presents the results of hydrodynamic research and proposes methods for determining the presence of behind-the-casing flows (BCF) and methods for detecting wasteful injection without geophysical well-logging (a non-standard approach). The article also presents equipment for the elimination of the behind-the-casing flow and technology of its implementation.
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_01011.pdf
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