| 郭为,高金亮,李海,康莉霞,张金武,刘国华,刘钰洋.中国海陆过渡相页岩气地质开发特征——以鄂尔多斯盆地东缘山西组和四川盆地龙潭组页岩气为例[J].矿产勘查,2023,14(3):448-458 |
| 中国海陆过渡相页岩气地质开发特征——以鄂尔多斯盆地东缘山西组和四川盆地龙潭组页岩气为例 |
| The geological and production characteristics of marine-continental transitional shale gas in China:Taking the example of shale gas from Shanxi Formation in Ordos Basin and Longtan Formation in Sichuan Basin |
| 投稿时间：2022-07-27 |
| DOI：10.20008/j.kckc.202303010 |
| 中文关键词: 页岩气 海陆过渡相 地质特征 开发特征 地质调查工程 |
| 英文关键词: shale gas marine-continental transitional shale geological characteristics production characteristics geological survey engineering |
| 基金项目:本文受国家自然科学基金(41903061)和中国石油前瞻性基础性研究项目(2021DJ2005)联合资助。 |
| 作者 | 单位 | | 郭为 | 中国石油勘探开发研究院, 北京 100083
国家能源页岩气研发实验中心, 河北 廊坊 065007 | | 高金亮 | 中国石油勘探开发研究院, 北京 100083
国家能源页岩气研发实验中心, 河北 廊坊 065007 | | 李海 | 中国石油天然气股份有限公司西南油气田分公司蜀南气矿, 四川 泸州 646001 | | 康莉霞 | 中国石油勘探开发研究院, 北京 100083
国家能源页岩气研发实验中心, 河北 廊坊 065007 | | 张金武 | 中国石油集团长城钻探工程有限公司工程技术研究院, 辽宁 盘锦 124010 | | 刘国华 | 中国石油集团长城钻探工程有限公司工程技术研究院, 辽宁 盘锦 124010 | | 刘钰洋 | 中国石油勘探开发研究院, 北京 100083
国家能源页岩气研发实验中心, 河北 廊坊 065007 |
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| 中文摘要: |
| 中国海陆过渡相页岩气地质资源量19.8×1012 m3,勘探潜力巨大。本文以鄂尔多斯盆地山西组、四川盆地龙潭组海陆过渡相页岩为例,介绍中国典型海陆过渡相页岩气的地质与开发特征。海陆过渡相页岩气地质特征与海相页岩气存在显著差异,主要体现在:(1)海陆过渡相页岩纵横向稳定性及连续性差,优质页岩储层呈纵向多层分布；(2)海陆过渡相页岩脆性矿物含量低,黏土矿物以高岭石为主；(3)海陆过渡相页岩有机质主要为Ⅱ2-Ⅲ型,有机孔相对不发育；(4)中国海陆过渡相页岩埋深相对较浅,储层压力系数相对较低。海陆过渡相页岩直井及水平井试气结果证实海陆过渡相页岩气具有工业产能。目前,海陆过渡相页岩气勘探开发仍处于探索阶段,亟需建立完善的海陆过渡相页岩气地质理论与评价方法、攻关海陆过渡相页岩气高效钻井与储层改造技术、建立海陆过渡相页岩气高效开发技术政策。 |
| 英文摘要: |
| The geological resources of marine-continental transitional shale gas in China are 19.8×1012 m3, which is of huge exploration potential. This paper summarizes the geological and development characteristics of marine-continental transitional shale gas through exampling from marine-continental transitional shales of Shanxi Formation in the Ordos Basin and Longtan Formation in the Sichuan Basin. The geological characteristics of transitional shale gas reservoir are different from those of marine shale gas reservoir. (1)The vertical and lateral continuity of transitional shales are generally worse than those of marine shales. (2)The brittle mineral contents of transitional shale are generally low, and kaolinites dominated the total clay minerals. (3)The organic matter type of marine-continental transitional shale is mainly Type Ⅱ2-Ⅲ, and the organic pores are relatively undeveloped. (4)Transitional shale gas reservoirs in China have relatively shallow burial depth and low-pressure coefficients. It is confirmed that the industrial productivity of marine-continental transitional shale gas was huge by test results of vertical and horizontal wells of Shanxi Formation in the Ordos Basin. However, at present, the exploration and development of marine-continental transitional shale gas are still in its infancy. Comprehensive geological and evaluation theories, efficient drilling and reservoir modification techniques and productive development technological policies must be done to realize the large-scale development of the marine-continental transitional shale gas in China. |
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