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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EDP Sciences
2021-01-01
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Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_01011.pdf |
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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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