Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China
Mahu Oilfield is the largest tight glutenite oilfield in the world, and the upper Wuerhe formation is an important succeeding exploration horizon. However, the upper Wuerhe formation in the Mahu 1 zone has a high clay content, which can lead to serious wellbore collapse. Meanwhile, the horizontal we...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/19/7119 |
| _version_ | 1797479509081980928 |
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| author | Linsheng Wang Qian Xiong Qingping Jiang Zhifeng Wang Zigang Qiu Kai Liu Chuixian Kong Canhua Liu Xiaoli Zhang |
| author_facet | Linsheng Wang Qian Xiong Qingping Jiang Zhifeng Wang Zigang Qiu Kai Liu Chuixian Kong Canhua Liu Xiaoli Zhang |
| author_sort | Linsheng Wang |
| collection | DOAJ |
| description | Mahu Oilfield is the largest tight glutenite oilfield in the world, and the upper Wuerhe formation is an important succeeding exploration horizon. However, the upper Wuerhe formation in the Mahu 1 zone has a high clay content, which can lead to serious wellbore collapse. Meanwhile, the horizontal well logging is not corrected. These factors lead to the inconsistency between the logging interpretation results and the oil test results. The interpretation precision of the clay content, water saturation, and porosity, which are crucial to reservoir evaluation, is very low. In this paper, a workflow of logging curve correction using multiple methods is proposed. The multiple linear fitting is used to correct boreholes, and then histogram frequency distribution matching is used to standardize multi-well logging curves. Finally, the optimization method is used to build a volume model based on skeleton analysis, and the results are calibrated with core analysis results. Horizontal well density logs are corrected using adjacent vertical well logs. The interpretation results of clay content, water saturation, and porosity with high precision are obtained. The reservoir interpretation is more in line with the oil test results than the original interpretation. The clay content distribution is more reasonable. |
| first_indexed | 2024-03-09T21:47:07Z |
| format | Article |
| id | doaj.art-3a91a149663642c9a62a7e9f84ca235d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T21:47:07Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3a91a149663642c9a62a7e9f84ca235d2023-11-23T20:13:32ZengMDPI AGEnergies1996-10732022-09-011519711910.3390/en15197119Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, ChinaLinsheng Wang0Qian Xiong1Qingping Jiang2Zhifeng Wang3Zigang Qiu4Kai Liu5Chuixian Kong6Canhua Liu7Xiaoli Zhang8Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaSeiser Energy Technology (Beijing) Co., Ltd., Beijing 100102, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaResearch Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, ChinaMahu Oilfield is the largest tight glutenite oilfield in the world, and the upper Wuerhe formation is an important succeeding exploration horizon. However, the upper Wuerhe formation in the Mahu 1 zone has a high clay content, which can lead to serious wellbore collapse. Meanwhile, the horizontal well logging is not corrected. These factors lead to the inconsistency between the logging interpretation results and the oil test results. The interpretation precision of the clay content, water saturation, and porosity, which are crucial to reservoir evaluation, is very low. In this paper, a workflow of logging curve correction using multiple methods is proposed. The multiple linear fitting is used to correct boreholes, and then histogram frequency distribution matching is used to standardize multi-well logging curves. Finally, the optimization method is used to build a volume model based on skeleton analysis, and the results are calibrated with core analysis results. Horizontal well density logs are corrected using adjacent vertical well logs. The interpretation results of clay content, water saturation, and porosity with high precision are obtained. The reservoir interpretation is more in line with the oil test results than the original interpretation. The clay content distribution is more reasonable.https://www.mdpi.com/1996-1073/15/19/7119glutenite reservoircorrection for logging curveborehole enlargementclay contenthorizontal well |
| spellingShingle | Linsheng Wang Qian Xiong Qingping Jiang Zhifeng Wang Zigang Qiu Kai Liu Chuixian Kong Canhua Liu Xiaoli Zhang Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China Energies glutenite reservoir correction for logging curve borehole enlargement clay content horizontal well |
| title | Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China |
| title_full | Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China |
| title_fullStr | Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China |
| title_full_unstemmed | Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China |
| title_short | Correction Method for Logging Curves in Clay-Rich Tight Glutenite Reservoir: Upper Wuerhe Formation in Mahu Oilfield, China |
| title_sort | correction method for logging curves in clay rich tight glutenite reservoir upper wuerhe formation in mahu oilfield china |
| topic | glutenite reservoir correction for logging curve borehole enlargement clay content horizontal well |
| url | https://www.mdpi.com/1996-1073/15/19/7119 |
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