鄂尔多斯盆地中生界页岩气成藏地质条件
Geological Conditions for Shale Gas Accumulation in Ordos Basin Mesozoic
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- 引用格式:
-
雷宇,王凤琴,刘红军,马华,张成乘.鄂尔多斯盆地中生界页岩气成藏地质条件[J].天然气与石油,2011,29(6):0.doi:
.Geological Conditions for Shale Gas Accumulation in Ordos Basin Mesozoic[J].Natural Gas and Oil,2011,29(6):0.doi:
- DOI:
- 作者:
- 雷 宇1 王凤琴1 刘红军1 马 华2 张成乘1
- 作者单位:
- 1.西安石油大学油气资源学院，2.延长石油青平川油田地质监督
- 关键词:
- 鄂尔多斯盆地；页岩气；地质背景；成藏控制因素；有利区域预测
Ordos Basin； Shale gas； Geologic background； Accumulation control factor； Favorable region prediction
- 摘要:
- 为了寻找常规油气的接替能源，增加鄂尔多斯盆地油气资源的地质储量，促进国内非常规油气资源的勘探开发，根据国内外现有的页岩气勘探开发理论和实践，对中生界延长组长7段泥页岩层的沉积环境、经历的构造运动、分布范围、厚度、埋深、有机质的类型和丰度、成熟度及生烃强度等各项成藏地质、地化要素进行了分析。研究认为鄂尔多斯盆地中生界延长组长7段泥页岩层具备良好的页岩气成藏地质条件，盆地南部吴起—永宁—下寺湾—直罗—线地区是中生界地层页岩气勘探开发的有利区块。
In order to look for alternative energy instead of conventional oil and natural gas， increase geological reserve of oil and gas resources in Ordos Basin and promote domestic unconventional oil and gas resources exploration and development， based on theories and practices in current domestic and foreign shale gas exploration and development， analyzed are various reservoiring geological and geochemical elements such as Mesozoic Yanchang Formation Long Seven layer’s sedimentary and tectonic movement conditions， distribution range， thickness， burial depth， type， abundance and maturation of organic matter and hydrocarbon-generating intensity. It can be concluded from the analysis that the sedimentary environment is fit for hydrocarbon source rocks， tectonic movement is also good for shale gas reservoir formation and shale layer has wide range， thickness strata distribution and moderate burial depth， organic matter is abundant and its maturity is high and its hydrocarbon-generating intensity is high. The study results suggest that geological conditions of Ordos Basin’s Mesozoic Long Seven layer’s shale formation are favorable. In the south of the basin， Wuqi-Yongning-Xiasiwan-Zhiluo is an area for especially favorable shale gas exploration and development.
