Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells
Shunted screen gravel packing is a kind of technology which is difficult to complete gravel packing with the conventional method in low fracture pressure formation and long wellbore length condition. According to the characteristics of LS 17-2 deepwater gas field, the shunted screen packing tool was...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/4651199 |
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| _version_ | 1832557122412347392 |
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| author | Fei Xu Shengtian Zhou Chong Zhang Yi Yu Zhao Dong |
| author_facet | Fei Xu Shengtian Zhou Chong Zhang Yi Yu Zhao Dong |
| author_sort | Fei Xu |
| collection | DOAJ |
| description | Shunted screen gravel packing is a kind of technology which is difficult to complete gravel packing with the conventional method in low fracture pressure formation and long wellbore length condition. According to the characteristics of LS 17-2 deepwater gas field, the shunted screen packing tool was designed and the gravel packing process and packing mechanism were analyzed. The variation law of the flow friction, flow rate distribution in multichannel, and other parameters of the shunted screen gravel packing were analyzed and calculated. The friction calculation model of different stages of gravel packing was established. A gravel packing simulation software was developed to simulate the friction in different stages of shunted screen gravel packing. The parameters such as sand-dune ratio, pumping sand amount, packing length, and packing time in the process of packing were also calculated. In deepwater horizontal well gravel packing, the results show that the friction ratio of the string is the largest in the stage of injection and α-wave packing. While the friction increases rapidly in the stage of β-wave packing because the carrier fluid needs to flow through the long and narrow washpipe/screen annulus. Particularly when the β-wave packing is near the beginning of the open hole, the packing pressure reaches the maximum. The calculated results are in good agreement with the measured results of the downhole pressure gauge. The model and software can provide technical support for the prediction and optimization of gravel packing parameters in the future. |
| format | Article |
| id | doaj-art-b22637357871453183c70090308d8e35 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-b22637357871453183c70090308d8e352025-02-03T05:43:35ZengWileyGeofluids1468-81232021-01-01202110.1155/2021/4651199Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal WellsFei Xu0Shengtian Zhou1Chong Zhang2Yi Yu3Zhao Dong4CNOOC China LimitedChina University of PetroleumCNOOC China LimitedCNOOC China LimitedCNOOC China LimitedShunted screen gravel packing is a kind of technology which is difficult to complete gravel packing with the conventional method in low fracture pressure formation and long wellbore length condition. According to the characteristics of LS 17-2 deepwater gas field, the shunted screen packing tool was designed and the gravel packing process and packing mechanism were analyzed. The variation law of the flow friction, flow rate distribution in multichannel, and other parameters of the shunted screen gravel packing were analyzed and calculated. The friction calculation model of different stages of gravel packing was established. A gravel packing simulation software was developed to simulate the friction in different stages of shunted screen gravel packing. The parameters such as sand-dune ratio, pumping sand amount, packing length, and packing time in the process of packing were also calculated. In deepwater horizontal well gravel packing, the results show that the friction ratio of the string is the largest in the stage of injection and α-wave packing. While the friction increases rapidly in the stage of β-wave packing because the carrier fluid needs to flow through the long and narrow washpipe/screen annulus. Particularly when the β-wave packing is near the beginning of the open hole, the packing pressure reaches the maximum. The calculated results are in good agreement with the measured results of the downhole pressure gauge. The model and software can provide technical support for the prediction and optimization of gravel packing parameters in the future.http://dx.doi.org/10.1155/2021/4651199 |
| spellingShingle | Fei Xu Shengtian Zhou Chong Zhang Yi Yu Zhao Dong Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells Geofluids |
| title | Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells |
| title_full | Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells |
| title_fullStr | Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells |
| title_full_unstemmed | Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells |
| title_short | Analysis of Shunted Screen Gravel Pack Process and Calculation of Friction in Deepwater Horizontal Wells |
| title_sort | analysis of shunted screen gravel pack process and calculation of friction in deepwater horizontal wells |
| url | http://dx.doi.org/10.1155/2021/4651199 |
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