卢树藩,何犇,陈祎,罗香建,符宏斌.贵州复杂构造背景下的页岩气勘查存在问题探讨[J].贵州地质,2023,40(1):1-12 |
贵州复杂构造背景下的页岩气勘查存在问题探讨 |
Discussion on Problems of Shale Gas Exploration Under Complex Background in Guizhou |
投稿时间:2022-08-30 |
DOI: |
中文关键词: 贵州省 页岩气 复杂构造区 存在问题 勘查建议 |
英文关键词:Guizhou Province Shale gas Complex tectonic area Existing problems Exploration suggestions |
基金项目:贵州省地矿局科研项目(2021黔地矿科合6号,2019黔地矿科合32号,2021黔地矿科合9号);贵州省页岩气资源勘探开发战略研究项目(GZYQY2020001);贵州省页岩气基础研究项目(208-9912-JBN-L1D7)。 |
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中文摘要: |
自从我国引入页岩气概念及页岩气在四川盆地成功实现商业开发,油气勘查工作突破了盆地的界限向盆地外延伸,并取得了一些新的找矿发现,扩大了油气勘探的范围,增大了油气勘探开发的资源潜力。但随着盆外页岩气勘查工作的推进,显示出盆地外页岩气成藏条件与盆地相比资源条件变差,普遍存在构造改造强烈、资源贫化、勘查程度低、开发难度大等问题,这其中以贵州省较为典型。贵州省属于盆地外推进页岩气勘查较早的省份,是盆外区页岩气勘探开发的一个缩影,发育有多套黑色页岩层系,前期实施的部分钻井获得了页岩气的发现,部分甚至取得了勘探突破,但也有部分探井效果不佳,需要解决攻克的问题仍然较多。通过总结贵州省的页岩气勘查现状,提出贵州页岩气保存条件复杂,现有工作程度下页岩气选区、开发难度仍然较大。建议加大页岩气成藏条件的研究,从大区域勘查转为聚焦潜力较好的背、向斜解剖分析,集中力量开展资源评价,提高区块优选质量,降低后期勘探风险,创新盆外复杂构造区页岩气成藏及勘探开发理论技术,以支撑贵州省页岩气高效开发。 |
英文摘要: |
Since the successful commercial development of shale gas in Sichuan basin,oil and gas exploration has broken through the boundaries of the basin and extended,making some new prospecting discoveriesWith the advance of shale gas exploration outside the basin,it is found that there are problems outside the basin,such as strong structural transformation,resource depletion,low level of exploration,and great difficulty in development,which is typical of Guizhou provinceGuizhou province is an early province to promote shale gas exploration outside the basinIt is a microcosm of shale gas exploration and development outside the basinThere are many sets of black shale series developedSome of the early drilling has been found shale gas,and some even made exploration breakthroughsHowever,some exploration wells are not effective,and there are still many problems to solveThe summary of the shale gas exploration history in Guizhou province shows that the preservation conditions of Guizhou shale gas are complex,and the shale gas selection and development are still difficult under the current work levelIt is suggested to focus on anticlines and synclines with good potential from large area exploration for dissection and analysis,concentrate on resource evaluation,improve the quality of block optimization,reduce the risk of later exploration,innovate the theory and technology of shale gas exploration and development in responsible structural areas outside the basin,and accelerate the progress of shale gas exploration and development in Guizhou province |
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