Optimal energy transfer pipe arrangement for acoustic drill string telemetry
Drill string acoustic telemetry is an effective transmission method to retrieve downhole data. Finite-difference simulations produce the comb-filter-like channel response (patterns of pass bands and stop bands) due to the presence of coupling joints in the metallic drill string. Practical pipes used...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/105360 http://hdl.handle.net/10220/20475 http://dx.doi.org/10.1109/TGRS.2014.2306686 |
| _version_ | 1811687262868471808 |
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| author | Kumar, Lakshmi Sutha Han, Wei Kwang Guan, Yong Liang Sun, Sumei Lee, Yee Hui |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Kumar, Lakshmi Sutha Han, Wei Kwang Guan, Yong Liang Sun, Sumei Lee, Yee Hui |
| author_sort | Kumar, Lakshmi Sutha |
| collection | NTU |
| description | Drill string acoustic telemetry is an effective transmission method to retrieve downhole data. Finite-difference simulations produce the comb-filter-like channel response (patterns of pass bands and stop bands) due to the presence of coupling joints in the metallic drill string. Practical pipes used for drilling deep wells have slight variation in length. The selection and arrangement of downhole pipes is important for improving the transmission efficiency of extensional waves transmitted through the drill string. Downhole drill string channel is studied using the transmission coefficients calculated from the transmission matrix method, and the resultant transfer function produces identical results similar to the finite-difference simulations. Reciprocity of the drill string structure is proved by comparing the pass band responses using the ascend-only (AO) and descend-only pipe arrangements. Transferred energies calculated up to 180 pipes of random length at the end of the drill strings using transmission coefficients for the three different pipe arrangements, namely, AO, descend-then-ascend, and ascend-then-descend (ATD), are compared to find the optimal pipe arrangement for single measurement. For the situations when pipes are distributed in sets, multiple measurements are required. In this paper, two sets of AO and two sets of ATD arrangements are analyzed for multiple measurements. ATD and nxATD arrangements are proposed as optimal pipe arrangements to produce the best possible telemetry performance in terms of optimal acoustic energy transfer via one- and two-way acoustic communication for single and multiple measurements, respectively |
| first_indexed | 2024-10-01T05:13:31Z |
| format | Journal Article |
| id | ntu-10356/105360 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:13:31Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1053602019-12-06T21:49:55Z Optimal energy transfer pipe arrangement for acoustic drill string telemetry Kumar, Lakshmi Sutha Han, Wei Kwang Guan, Yong Liang Sun, Sumei Lee, Yee Hui School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering Drill string acoustic telemetry is an effective transmission method to retrieve downhole data. Finite-difference simulations produce the comb-filter-like channel response (patterns of pass bands and stop bands) due to the presence of coupling joints in the metallic drill string. Practical pipes used for drilling deep wells have slight variation in length. The selection and arrangement of downhole pipes is important for improving the transmission efficiency of extensional waves transmitted through the drill string. Downhole drill string channel is studied using the transmission coefficients calculated from the transmission matrix method, and the resultant transfer function produces identical results similar to the finite-difference simulations. Reciprocity of the drill string structure is proved by comparing the pass band responses using the ascend-only (AO) and descend-only pipe arrangements. Transferred energies calculated up to 180 pipes of random length at the end of the drill strings using transmission coefficients for the three different pipe arrangements, namely, AO, descend-then-ascend, and ascend-then-descend (ATD), are compared to find the optimal pipe arrangement for single measurement. For the situations when pipes are distributed in sets, multiple measurements are required. In this paper, two sets of AO and two sets of ATD arrangements are analyzed for multiple measurements. ATD and nxATD arrangements are proposed as optimal pipe arrangements to produce the best possible telemetry performance in terms of optimal acoustic energy transfer via one- and two-way acoustic communication for single and multiple measurements, respectively ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2014-09-10T01:51:06Z 2019-12-06T21:49:55Z 2014-09-10T01:51:06Z 2019-12-06T21:49:55Z 2014 2014 Journal Article Kumar, L. S., Han, W. K., Guan, Y. L., Sun, S., & Lee, Y. H. (2014). Optimal energy transfer pipe arrangement for acoustic drill string telemetry. IEEE transactions on geoscience and remote sensing, 52(11), 6999-7007. https://hdl.handle.net/10356/105360 http://hdl.handle.net/10220/20475 http://dx.doi.org/10.1109/TGRS.2014.2306686 en IEEE transactions on geoscience and remote sensing © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [http://dx.doi.org/10.1109/TGRS.2014.2306686]. 9 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Kumar, Lakshmi Sutha Han, Wei Kwang Guan, Yong Liang Sun, Sumei Lee, Yee Hui Optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| title | Optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| title_full | Optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| title_fullStr | Optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| title_full_unstemmed | Optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| title_short | Optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| title_sort | optimal energy transfer pipe arrangement for acoustic drill string telemetry |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/105360 http://hdl.handle.net/10220/20475 http://dx.doi.org/10.1109/TGRS.2014.2306686 |
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