| 南海西北部深水区速度及时深转换方法研究 |
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| 引用本文： | 刘爱群,陈殿远,李文拓,范彩伟,赫建伟.南海西北部深水区速度及时深转换方法研究[J].海洋学报(英文版),2015,34(4):56-61. |
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| 作者姓名： | 刘爱群 陈殿远 李文拓 范彩伟 赫建伟 |
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| 作者单位： | 中海石油(中国)有限公司湛江分公司, 湛江 524057,中海石油(中国)有限公司湛江分公司, 湛江 524057,中海石油(中国)有限公司湛江分公司, 湛江 524057,中海石油(中国)有限公司湛江分公司, 湛江 524057,中海石油(中国)有限公司湛江分公司, 湛江 524057 |
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| 摘 要： | There are rich natural gas resources in the northwestern South China Sea deepwater areas, with poor degree of exploration. Because of the unique tectonic, sedimentary background of the region, velocity...
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| 关 键 词： | 时深转换 深水区 速度误差校正量 斜坡区 速度建模 |
| 收稿时间： | 2014/6/25 0:00:00 |
| 修稿时间： | 2014/12/6 0:00:00 |
Velocity model and time-depth conversion for the northwestern South China Sea deepwater areas |
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| LIU Aiqun,CHEN Dianyuan,LI Wentuo,FAN Caiwei and HE Jianwei.Velocity model and time-depth conversion for the northwestern South China Sea deepwater areas[J].Acta Oceanologica Sinica,2015,34(4):56-61. |
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| Authors: | LIU Aiqun CHEN Dianyuan LI Wentuo FAN Caiwei and HE Jianwei |
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| Institution: | Zhanjiang Branch of China National Offshore Oil Corporation Limited, Zhanjiang 524057, China |
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| Abstract: | There are rich natural gas resources in the northwestern South China Sea deepwater areas, with poor degree of exploration. Because of the unique tectonic, sedimentary background of the region, velocity model building and time-depth conversion have been an important and difficult problem for a long time. Recent researches in this direction have revealed three major problems for deepwater areas, i.e., the way to determine error correction for drilling velocity, the optimization of velocity modeling, and the understanding and analysis of velocity variations in the slope areas. The present contribution proposes technical solutions to the problems: (1) velocity correction version can be established by analyzing the geology, reservoir, water depths and velocity spectrum characteristics; (2) a unified method can be adopted to analyze the velocity variation patterns in drilled pale structural positions; and (3) across-layer velocity is analyzed to establish the velocity model individually for each of the layers. Such a solution is applicable, as shown in an example from the northwestern South China Sea deepwater areas, in which an improved prediction precision is obtained. |
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| Keywords: | time-depth conversion velocity modeling deepwater areas continental slope South China Sea |
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