Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district
It is difficult to distinguish reservoirs and non-reservoirs based on the rock's physical properties. The quality of post-stack seismic data in the loess plateau is poor, which makes it a technical bottleneck for the prediction of reservoir of the Upper Paleozoic, and the exploration in the sou...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Petroleum Geology and Experiment
2021-05-01
|
| Series: | Shiyou shiyan dizhi |
| Subjects: | |
| Online Access: | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202103443 |
| _version_ | 1797277198036500480 |
|---|---|
| author | Hongmei LU Zhongpei ZHANG Linlin WANG Changrong BIAN Yipu SUN Yingzhong LU |
| author_facet | Hongmei LU Zhongpei ZHANG Linlin WANG Changrong BIAN Yipu SUN Yingzhong LU |
| author_sort | Hongmei LU |
| collection | DOAJ |
| description | It is difficult to distinguish reservoirs and non-reservoirs based on the rock's physical properties. The quality of post-stack seismic data in the loess plateau is poor, which makes it a technical bottleneck for the prediction of reservoir of the Upper Paleozoic, and the exploration in the southern Ordos Basin was then constrained. Block evaluations have indicated that the northeastern part of Zhenjing district has a good potential for exploration, with the second member of Permian Shanxi Formation and the first member of Xiashihezi Formation as the main target beds. The results of 3D seismic facies analysis in Zhenjing area are consistent with the regional sedimentary facies studies on provenance and the distribution of sand bodies, indicating that seismic data can be used for the prediction of reservoir. The distribution of sedimentary facies of a series of seismic forward modeling showed that the sand bodies distributed with a certain distance and thickness in the second member of Shanxi Formation and the first member of Xiashihezi Formation formed recognizable seismic reflections. This vertical spatial combination of stratigraphic lithology is consistent with the depositional model of regional superimposed and thick single-type sand bodies, which is the typical form of reservoir-caprock combination that has been discovered in the surrounding gas reservoirs. The reservoir prediction based on the optimal number of wave crests from the forward simulation results confirmed that the superimposed and the thick single-type sand bodies of the second member of Shanxi Member were distributed in SW-NE directions. Furthermore, the picking and interpretation of co-phase axis and the structural mapping of seismic profile were carried out, which directly delineated the distribution range and burial depth of lithologic traps in the sand bodies of the second member of Shanxi Formation, and provided drilling targets for exploration and deployment in this area. |
| first_indexed | 2024-03-07T15:45:10Z |
| format | Article |
| id | doaj.art-0f543d9ce26b40aab528bb1ae4bb84ab |
| institution | Directory Open Access Journal |
| issn | 1001-6112 |
| language | zho |
| last_indexed | 2024-03-07T15:45:10Z |
| publishDate | 2021-05-01 |
| publisher | Editorial Office of Petroleum Geology and Experiment |
| record_format | Article |
| series | Shiyou shiyan dizhi |
| spelling | doaj.art-0f543d9ce26b40aab528bb1ae4bb84ab2024-03-05T04:38:56ZzhoEditorial Office of Petroleum Geology and ExperimentShiyou shiyan dizhi1001-61122021-05-0143344345110.11781/sysydz202103443sysydz-43-3-443Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing districtHongmei LU0Zhongpei ZHANG1Linlin WANG2Changrong BIAN3Yipu SUN4Yingzhong LU5SINOPEC Petroleum Exploration & Production Research Institute, Beijing 102206, ChinaSINOPEC Petroleum Exploration & Production Research Institute, Beijing 102206, ChinaSINOPEC Petroleum Exploration & Production Research Institute, Beijing 102206, ChinaSINOPEC Petroleum Exploration & Production Research Institute, Beijing 102206, ChinaSINOPEC Petroleum Exploration & Production Research Institute, Beijing 102206, ChinaSINOPEC Petroleum Exploration & Production Research Institute, Beijing 102206, ChinaIt is difficult to distinguish reservoirs and non-reservoirs based on the rock's physical properties. The quality of post-stack seismic data in the loess plateau is poor, which makes it a technical bottleneck for the prediction of reservoir of the Upper Paleozoic, and the exploration in the southern Ordos Basin was then constrained. Block evaluations have indicated that the northeastern part of Zhenjing district has a good potential for exploration, with the second member of Permian Shanxi Formation and the first member of Xiashihezi Formation as the main target beds. The results of 3D seismic facies analysis in Zhenjing area are consistent with the regional sedimentary facies studies on provenance and the distribution of sand bodies, indicating that seismic data can be used for the prediction of reservoir. The distribution of sedimentary facies of a series of seismic forward modeling showed that the sand bodies distributed with a certain distance and thickness in the second member of Shanxi Formation and the first member of Xiashihezi Formation formed recognizable seismic reflections. This vertical spatial combination of stratigraphic lithology is consistent with the depositional model of regional superimposed and thick single-type sand bodies, which is the typical form of reservoir-caprock combination that has been discovered in the surrounding gas reservoirs. The reservoir prediction based on the optimal number of wave crests from the forward simulation results confirmed that the superimposed and the thick single-type sand bodies of the second member of Shanxi Member were distributed in SW-NE directions. Furthermore, the picking and interpretation of co-phase axis and the structural mapping of seismic profile were carried out, which directly delineated the distribution range and burial depth of lithologic traps in the sand bodies of the second member of Shanxi Formation, and provided drilling targets for exploration and deployment in this area.https://www.sysydz.net/cn/article/doi/10.11781/sysydz202103443sand body stack modeseismic forward modelingfacies analysisthin layer reflectionreservoir predictiontight clastic reservoirupper paleozoicsouthern part of ordos basin |
| spellingShingle | Hongmei LU Zhongpei ZHANG Linlin WANG Changrong BIAN Yipu SUN Yingzhong LU Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district Shiyou shiyan dizhi sand body stack mode seismic forward modeling facies analysis thin layer reflection reservoir prediction tight clastic reservoir upper paleozoic southern part of ordos basin |
| title | Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district |
| title_full | Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district |
| title_fullStr | Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district |
| title_full_unstemmed | Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district |
| title_short | Prediction of tight clastic reservoirs of Upper Paleozoic in southern Ordos Basin: a case study of Zhenjing district |
| title_sort | prediction of tight clastic reservoirs of upper paleozoic in southern ordos basin a case study of zhenjing district |
| topic | sand body stack mode seismic forward modeling facies analysis thin layer reflection reservoir prediction tight clastic reservoir upper paleozoic southern part of ordos basin |
| url | https://www.sysydz.net/cn/article/doi/10.11781/sysydz202103443 |
| work_keys_str_mv | AT hongmeilu predictionoftightclasticreservoirsofupperpaleozoicinsouthernordosbasinacasestudyofzhenjingdistrict AT zhongpeizhang predictionoftightclasticreservoirsofupperpaleozoicinsouthernordosbasinacasestudyofzhenjingdistrict AT linlinwang predictionoftightclasticreservoirsofupperpaleozoicinsouthernordosbasinacasestudyofzhenjingdistrict AT changrongbian predictionoftightclasticreservoirsofupperpaleozoicinsouthernordosbasinacasestudyofzhenjingdistrict AT yipusun predictionoftightclasticreservoirsofupperpaleozoicinsouthernordosbasinacasestudyofzhenjingdistrict AT yingzhonglu predictionoftightclasticreservoirsofupperpaleozoicinsouthernordosbasinacasestudyofzhenjingdistrict |