Identification and logging evaluation of poor reservoirs in X Oilfield

The reservoirs of X Oilfield have the characteristics of fine lithology particles, strong pore structure heterogeneity, and high argillaceous reservoirs and thin layers are generally developed. Conventional logging interpretation cannot make a fine evaluation, which results in serious discrepancies...

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Autores principales: Lu Shengyan, Deng Rui, Linghu Song, Wu Shengli
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Lenguaje:EN
Publicado: De Gruyter 2021
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Acceso en línea:https://doaj.org/article/b3cf15e3e3034699a3278b27fad1f3da
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spelling oai:doaj.org-article:b3cf15e3e3034699a3278b27fad1f3da2021-12-05T14:10:49ZIdentification and logging evaluation of poor reservoirs in X Oilfield2391-544710.1515/geo-2020-0280https://doaj.org/article/b3cf15e3e3034699a3278b27fad1f3da2021-09-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0280https://doaj.org/toc/2391-5447The reservoirs of X Oilfield have the characteristics of fine lithology particles, strong pore structure heterogeneity, and high argillaceous reservoirs and thin layers are generally developed. Conventional logging interpretation cannot make a fine evaluation, which results in serious discrepancies between the interpretation results of some reservoirs and actual production performance, and reserves are underestimated. Improving poor reservoir identification and logging evaluation accuracy is of great significance to oilfield development. The flow zone indicator (FZI) is used to classify the reservoirs into three types, I, II, and III, and the classification results are combined to establish a reservoir type identification chart based on logging curves; the resolution matching method and the deconvolution method are used to improve the accuracy of thin-layer recognition. Finally, the logging interpretation model is reestablished. Logging evaluations were conducted on 20 wells in X oilfield, and Y core wells were used for verification. The application results show that this method can effectively improve the identification accuracy of thin oilfields and high argillaceous reservoirs; the results of fine logging interpretation of poor reservoirs are consistent with core analysis conclusions and actual production conditions, which are typical of the successful application of poor reservoir technology.Lu ShengyanDeng RuiLinghu SongWu ShengliDe Gruyterarticlereservoir classificationfzi methodreservoir type identification chartresolution matching methoddeconvolution methodGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 1013-1027 (2021)
institution DOAJ
collection DOAJ
language EN
topic reservoir classification
fzi method
reservoir type identification chart
resolution matching method
deconvolution method
Geology
QE1-996.5
spellingShingle reservoir classification
fzi method
reservoir type identification chart
resolution matching method
deconvolution method
Geology
QE1-996.5
Lu Shengyan
Deng Rui
Linghu Song
Wu Shengli
Identification and logging evaluation of poor reservoirs in X Oilfield
description The reservoirs of X Oilfield have the characteristics of fine lithology particles, strong pore structure heterogeneity, and high argillaceous reservoirs and thin layers are generally developed. Conventional logging interpretation cannot make a fine evaluation, which results in serious discrepancies between the interpretation results of some reservoirs and actual production performance, and reserves are underestimated. Improving poor reservoir identification and logging evaluation accuracy is of great significance to oilfield development. The flow zone indicator (FZI) is used to classify the reservoirs into three types, I, II, and III, and the classification results are combined to establish a reservoir type identification chart based on logging curves; the resolution matching method and the deconvolution method are used to improve the accuracy of thin-layer recognition. Finally, the logging interpretation model is reestablished. Logging evaluations were conducted on 20 wells in X oilfield, and Y core wells were used for verification. The application results show that this method can effectively improve the identification accuracy of thin oilfields and high argillaceous reservoirs; the results of fine logging interpretation of poor reservoirs are consistent with core analysis conclusions and actual production conditions, which are typical of the successful application of poor reservoir technology.
format article
author Lu Shengyan
Deng Rui
Linghu Song
Wu Shengli
author_facet Lu Shengyan
Deng Rui
Linghu Song
Wu Shengli
author_sort Lu Shengyan
title Identification and logging evaluation of poor reservoirs in X Oilfield
title_short Identification and logging evaluation of poor reservoirs in X Oilfield
title_full Identification and logging evaluation of poor reservoirs in X Oilfield
title_fullStr Identification and logging evaluation of poor reservoirs in X Oilfield
title_full_unstemmed Identification and logging evaluation of poor reservoirs in X Oilfield
title_sort identification and logging evaluation of poor reservoirs in x oilfield
publisher De Gruyter
publishDate 2021
url https://doaj.org/article/b3cf15e3e3034699a3278b27fad1f3da
work_keys_str_mv AT lushengyan identificationandloggingevaluationofpoorreservoirsinxoilfield
AT dengrui identificationandloggingevaluationofpoorreservoirsinxoilfield
AT linghusong identificationandloggingevaluationofpoorreservoirsinxoilfield
AT wushengli identificationandloggingevaluationofpoorreservoirsinxoilfield
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