Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits)
Modern field operation conditions are characterized by a decline in gas production due to the depletion of its reserves, a decrease in reservoir pressure, an increase in water cut, as well as due to the depreciation of the operating well stock. These problems are especially specific at the late stag...
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| Format: | Article |
| Language: | English |
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Saint-Petersburg Mining University
2022-12-01
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| Series: | Записки Горного института |
| Subjects: | |
| Online Access: | https://pmi.spmi.ru/index.php/pmi/article/view/15802?setLocale=en_US |
| _version_ | 1797947281251500032 |
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| author | Ramiz А. Gasumov Yulia S. Minchenko Eldar R. Gasumov |
| author_facet | Ramiz А. Gasumov Yulia S. Minchenko Eldar R. Gasumov |
| author_sort | Ramiz А. Gasumov |
| collection | DOAJ |
| description | Modern field operation conditions are characterized by a decline in gas production due to the depletion of its reserves, a decrease in reservoir pressure, an increase in water cut, as well as due to the depreciation of the operating well stock. These problems are especially specific at the late stage of development of the Cenomanian deposits of Western Siberia fields, where the anomaly factor below 0.2 prevails, while gas-bearing formations are represented mainly by complex reservoirs with high-permeability areas. When killing such wells, the classical reduction of overbalance by reducing the density of the process fluid does not provide the necessary efficiency, which requires the search for new technical and technological solutions. In order to prevent the destruction
of the reservoir and preserve its reservoir properties during repair work in wells with abnormally low reservoir pressure, AO “SevKavNIPIgaz” developed compositions of special process fluids. A quantitative description of the process of blocking the bottomhole formation zone is proposed by means of mathematical modeling of injection of a gel-forming solution into a productive horizon. The well killing technology includes three main stages of work: leveling the injectivity profile of the productive strata using three-phase foam, pumping the blocking composition and its displacement with the creation of a calculated repression. Solutions obtained on the basis
of a mathematical model allow optimizing technological parameters to minimize negative consequences in the well killing process. |
| first_indexed | 2024-04-10T21:24:12Z |
| format | Article |
| id | doaj.art-b390b4878c16403783c754bda28d880d |
| institution | Directory Open Access Journal |
| issn | 2411-3336 2541-9404 |
| language | English |
| last_indexed | 2024-04-10T21:24:12Z |
| publishDate | 2022-12-01 |
| publisher | Saint-Petersburg Mining University |
| record_format | Article |
| series | Записки Горного института |
| spelling | doaj.art-b390b4878c16403783c754bda28d880d2023-01-20T02:04:52ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042022-12-0125889590510.31897/PMI.2022.9915802Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits)Ramiz А. Gasumov0https://orcid.org/0000-0002-4700-2391Yulia S. Minchenko1https://orcid.org/0000-0001-8102-3981Eldar R. Gasumov2https://orcid.org/0000-0003-2704-0523AO “SevKavNIPIgaz”AO “SevKavNIPIgaz”Azerbaijan State University of Oil and IndustryModern field operation conditions are characterized by a decline in gas production due to the depletion of its reserves, a decrease in reservoir pressure, an increase in water cut, as well as due to the depreciation of the operating well stock. These problems are especially specific at the late stage of development of the Cenomanian deposits of Western Siberia fields, where the anomaly factor below 0.2 prevails, while gas-bearing formations are represented mainly by complex reservoirs with high-permeability areas. When killing such wells, the classical reduction of overbalance by reducing the density of the process fluid does not provide the necessary efficiency, which requires the search for new technical and technological solutions. In order to prevent the destruction of the reservoir and preserve its reservoir properties during repair work in wells with abnormally low reservoir pressure, AO “SevKavNIPIgaz” developed compositions of special process fluids. A quantitative description of the process of blocking the bottomhole formation zone is proposed by means of mathematical modeling of injection of a gel-forming solution into a productive horizon. The well killing technology includes three main stages of work: leveling the injectivity profile of the productive strata using three-phase foam, pumping the blocking composition and its displacement with the creation of a calculated repression. Solutions obtained on the basis of a mathematical model allow optimizing technological parameters to minimize negative consequences in the well killing process.https://pmi.spmi.ru/index.php/pmi/article/view/15802?setLocale=en_USgas wellwell killing technologyabnormally low reservoir pressureblocking the reservoir bedprocess fluid |
| spellingShingle | Ramiz А. Gasumov Yulia S. Minchenko Eldar R. Gasumov Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits) Записки Горного института gas well well killing technology abnormally low reservoir pressure blocking the reservoir bed process fluid |
| title | Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits) |
| title_full | Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits) |
| title_fullStr | Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits) |
| title_full_unstemmed | Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits) |
| title_short | Development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under ALRP conditions (on the example of the Cenomanian gas deposits) |
| title_sort | development of technological solutions for reliable killing of wells by temporarily blocking a productive formation under alrp conditions on the example of the cenomanian gas deposits |
| topic | gas well well killing technology abnormally low reservoir pressure blocking the reservoir bed process fluid |
| url | https://pmi.spmi.ru/index.php/pmi/article/view/15802?setLocale=en_US |
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