页岩气开发区块地形适宜性选区评价方法
Evaluation method for site selection of terrain suitability for shale gas development block
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- 引用格式:
-
王泽根,胡思源,雍志玮,朱博天,孔波.页岩气开发区块地形适宜性选区评价方法[J].天然气与石油,2021,39(6):82-88.doi:10.3969/j.issn.1006-5539.2021.06.013
WANG Zegen, HU Siyuan, YONG Zhiwei, ZHU Botian, KONG Bo.Evaluation method for site selection of terrain suitability for shale gas development block[J].Natural Gas and Oil,2021,39(6):82-88.doi:10.3969/j.issn.1006-5539.2021.06.013
- DOI:
- 10.3969/j.issn.1006-5539.2021.06.013
- 作者:
- 王泽根1 胡思源1 雍志玮1 朱博天1 孔波2
WANG Zegen1, HU Siyuan1, YONG Zhiwei1, ZHU Botian1, KONG Bo2
- 作者单位:
- 1. 西南石油大学地球科学与技术学院, 四川 成都 610500; 2. 中国石油西南油气田公司科技处, 四川 成都 610051
1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan, 610500, China; 2. Science and Technology Department, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, 610051, China
- 关键词:
- 页岩气;GIS;地形;开发选区;昭通
Shale gas; GIS; Terrain; Site selection in development; Zhaotong city
- 摘要:
为了降低页岩气勘探开发成本及环境风险,实现绿色发展,需要对页岩气开发区块进行地形适宜性选区评价。选择4个地形评价指标,使用均值变点分析法、熵权法和GIS技术,建立页岩气开发区块地形适宜性选区评价方法,并将其应用到昭通区块。应用结果显示：高适宜区和较高适宜区大部分分布在昭通市西南部，即昭阳区及鲁甸县的东部和北部;中等适宜区在整个区块内广泛分布,多呈现为零星小块;低适宜区和较低适宜区主要沿地貌交替地带呈褶皱状分布,在巧家县、鲁甸县西部和永善县西、北部较为聚集。昭通区块的地形适宜性以中等适宜为主。运用该评价方法在昭通区块筛选出了879处大面积的高适宜区,为页岩气开发选址提供位置参考。
In order to reduce the capital cost and environmental risk of shale gas exploration and development and realize green development, it is necessary to evaluate the terrain suitability for shale gas development zones. Four terrain evaluation indexes are selected, and the evaluation method of terrain suitability for shale gas development block is established using mean change-point analysis method, entropy weight method and GIS spatial analysis technology. The results show that highest and higher suitability areas are mostly distributed in the southwest part of Zhaotong city, namely the east and north of Zhaoyang district and Ludian county, while medium suitability areas are widely distributed in the whole block, mostly presented as sporadic small pieces. The lowest and lower suitable areas are mainly distributed in fold shape along the landform alternating zone, and are clustered in Qiaojia county, the west of Ludian county, and the west and north of Yongshan county. The terrain suitability of Zhaotong block is mainly medium suitability. Upon this evaluation method,879 large areas of the highest suitability were selected in zhaotong block to provide reference for site selection in shale gas development.
