Journal of Geo-information Science >
Research on Oil and Gas Platform Extraction Technology Based on VIIRS Data
Received date: 2016-03-28
Request revised date: 2016-07-23
Online published: 2017-03-20
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As one of the major equipment for offshore oil and gas exploration, the number and spatial distribution of oil and gas platform would reflect the situation of exploitation in a region. Nowadays, it is difficult to acquire data of oil and gas platform because the traditional field observation method is expensive and time-consuming. With the development of remote sensing technology, remote sensing images as an important data source are applied in the extraction of marine targets effectively. However, traditional optical images are easily influenced by cloud and the radar data are too expensive, which make oil and gas platform detection difficult. During the operation process, the oil and gas platform need lamplight, and gas combustion also generate strong light. Thus, the oil and gas platform extraction can be done by detecting light. VIIRS data has a strong ability of detecting light at night and it can be used for the data extraction of oil and gas platform. Considering the feature of VIIRS data, this paper proposed a convolution operation threshold algorithm to extract offshore oil and gas platform and chose Pearl River Mouth basin as a study area for experiment. Firstly, VIIRS data of different time phase were operated to enhance the pixel value and weaken the background pixels so that the suspected target and background can be distinguished. Then, we took the 0 value as the dividing point to extract suspected targets. Finally, we extracted oil and gas platform through the neighborhood analysis making use of the relatively static characteristic of oil and gas platform. The results showed that the accuracy of extracting oil and gas platforms was about 85.4% and the method could effectively reduce the impacts of empirical threshold. At last, this study analyzed the shortage and causes of using VIIRS data to extract oil and gas platforms.
LI Qiang , SU Fenzhen , WANG Wenyue . Research on Oil and Gas Platform Extraction Technology Based on VIIRS Data[J]. Journal of Geo-information Science, 2017 , 19(3) : 398 -406 . DOI: 10.3724/SP.J.1047.2017.00398
Fig. 1 Sketch map of study area图1 研究区示意图 |
Fig. 2 VIIRS light data of study area in May, 2014图2 研究区2014年5月VIIRS灯光数据 |
Fig. 3 Schematic diagram of detecting characteristicvalue of oil and gas platform图3 油气平台特征值检测示意图 |
Fig. 4 Schematic diagram of detecting characteristic value of oil and gas platform after convolution operation图4 卷积运算后的油气平台特征值检测示意图 |
Fig. 5 Comparison of convolution operation results图5 卷积结果对比图 |
Fig. 6 Profile of gray level changes of an example bright spot图6 某亮点灰度变化情况剖面图 |
Fig. 7 Extraction results of suspected oil and gas platforms图7 疑似油气平台提取结果 |
Fig. 8 Comparison of extraction results of VIIRS and GF-1图8 VIIRS与GF-1提取结果对比图 |
Fig. 9 Comparison of leakage point of VIIRS and GF-1图9 漏提点VIIRS与GF-1影像对比 |
Fig. 10 Comparison of VIIRS images of error points图10 错误点的VIIRS影像对比 |
Fig. 11 Comparison of VIIRS images and the convolution operation results of the error points图11 错误点的VIIRS影像及卷积运算结果对比 |
The authors have declared that no competing interests exist.
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