[1]刘 闯.鄂尔多斯盆地东缘上古生界煤系气共生组合模式[J].复杂油气藏,2022,15(02):1-7.[doi:10.16181/j.cnki.fzyqc.2022.02.001]
 LIU Chuang.Symbiotic combination model of coal measures and gas in Upper Paleozoicin the eastern margin of Ordos Basin[J].Complex Hydrocarbon Reservoirs,2022,15(02):1-7.[doi:10.16181/j.cnki.fzyqc.2022.02.001]
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鄂尔多斯盆地东缘上古生界煤系气共生组合模式()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年02期
页码:
1-7
栏目:
油气勘探
出版日期:
2022-06-25

文章信息/Info

Title:
Symbiotic combination model of coal measures and gas in Upper Paleozoicin the eastern margin of Ordos Basin
作者:
刘 闯12
1.中国石化上海海洋油气分公司勘探开发研究院,上海 200120;2.中国石油大学(华东)地球科学与技术学院,山东 青岛 266580
Author(s):
LIU Chuang12
1. Sinopec Shanghai Offshore Petroleum Exploration and Development Institute,Shanghai 200120,China;2. School of Geosciences,China University of Petroleum (East China),Qingdao 266580,China
关键词:
煤系气共生模式上古生界鄂尔多斯盆地
Keywords:
coal measures gassymbiotic modelUpper PaleozoicOrdos Basin
分类号:
TE122
DOI:
10.16181/j.cnki.fzyqc.2022.02.001
文献标志码:
A
摘要:
鄂尔多斯盆地东缘临兴气田探明地质储量超千亿方,致密砂岩气、页岩气、煤层气“三气”共生、共探、共采在其中发挥着重要作用。为进一步明确这三种天然气合探潜力,基于单井垂向岩性组合模式,结合烃源岩的地化指标,开展了临兴地区上古生界煤系气共生组合模式研究。研究表明:煤和暗色泥岩均为研究区主力烃源岩;烃源岩以Ⅲ型干酪根为主,含有少量的Ⅱ2型干酪根;含煤地层镜质体反射率Ro均大于0.8%,整体处于高成熟阶段;煤系气共生组合的基本单元可以划分为源储一体型、源储紧邻型和源储分离型3个大类;根据岩性组合的相对位置、烃源岩及输导体系的差异,可以进一步细分为20个小类,其中源储一体型具有2种类型,源储紧邻型分为12种类型,源储分离型包括6种类型;在以上三个基本单元的基础上,可以形成多种衍生模式。
Abstract:
The proven geological reserves of the Linxing Gasfield in the eastern margin of the Ordos Basin are more than 100 billion cubic meters,in which the “three gases” of tight sandstone gas,shale gas,and coalbed methane play an important role in co-existence,co-exploration,and co-production. In order to further clarify the co-exploration potential of three types of natural gas,based on the vertical lithologic combination model of the single well and the geochemical index of source rocks,studies were carried out on the symbiotic combination model of Upper Paleozoic coal measures and gas in the Linxing area. The research shows that coal and dark mudstone are the main source rocks in the study area;the source rocks are mainly type III kerogen,with a small amount of type II2 kerogen;the vitrinite reflectance (Ro) of coal-bearing strata is greater than 0.8%,and the overall is in a high maturity stage;the basic units of coal-gas symbiotic assemblages can be divided into three categories: source-reservoir integration type,source-reservoir proximity type,and source-reservoir separation type;according to the relative position of the lithologic association,the difference in source rocks and transport systems,it can be further subdivided into 20 sub-categories,of which the source-reservoir integrated type has 2 types;the source-reservoir-adjacent type is divided into 12 types;and the source-reservoir separation type includes 6 types. Based on the above three basic units,a variety of derivative models can be formed.

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备注/Memo

备注/Memo:
收稿日期:2022-01-14;改回日期:2022-04-22。
作者简介:刘闯(1989—),博士,助理研究员(自然科学)。研究方向为非常规油气地质。E-mail:374808626@qq.com
基金项目:国家科技重大专项资助项目(2016ZX05066001-003)。
更新日期/Last Update: 2022-12-09