华南海相下组合层序地层格架与油气勘探

doi:10.11743/ogg20060312

摘要/Abstract

摘要：

在建立区域层序地层格架的基础上,指出区域性主力烃源岩及盖层主要形成于超层序的海侵体系域;高品质的区域性储层通常与超层序的高水位期-低水位期相一致。华南下组合海相碳酸盐岩油气纵向上总体存在3套生储盖组合,并将其划分为界面型、低位型、海侵型、高位型和综合型5种类型,不同类型的生储盖组合特征及成藏地质特征存在差异。提出礁滩相灰岩-白云化或白云岩-古岩溶为最有利储层,古隆起-后期构造圈闭为最有利部位,川东南-黔北地区为最有希望尽快取得突破的新区块的认识。

关键词: 层序地层格架, 生储盖组合, 下组合, 体系域, 油气勘探, 新认识, 华南海相

Abstract:

Based on establishment of regional sequence stratigraphic framework,it is believed that the regional main source rocks and cap rocks would have been formed in the transgressive system tract of the supersequence;while the high-quality regional reservoirs would be consistent with the highstand and lowstand of the supersequence.Vertically,3 source-reservoir-cap combinations occur in the lower assemblage(Lower Paleozoic) marine carbonates in South China,and they can be divided into 5 types,including boundary type,lowstand type,transgressive type, highstand type and composite type.Each type of source-reservoir-cap combination has different features of reservoiring geology.It is suggested that reef flat limestone-dolomitized limestone/dolomite-palaeokarst are the most favorable reservoirs,palaeohigh-late structural traps are the most favorable location;and southeastern Sichuan-northern Guizhou area is the frontier where exploration breakthrough would be expected in the near future.

Key words: sequence stratigrpahic framework, source-reservoir-cap combination, lower assemblage, system tract, hydrocarbon prospecting, new understanding, marine strata in South China

中图分类号:

TE111.2

陈洪德,倪新锋,田景春,等. 华南海相下组合层序地层格架与油气勘探[J]. 石油与天然气地质, 2006, 27(3): 370-377. doi: 10.11743/ogg20060312 Chen Hongde,Ni Xinfeng,Tian Jingchun,et al. Sequence stratigraphic framework of marine lower assemblage in South China and petroleum exploration[J]. Oil & Gas Geology, 2006, 27(3): 370-377. doi: 10.11743/ogg20060312

参考文献

[1] 李国辉,李翔,杨西南.四川盆地加里东古隆起震旦系气藏成藏控制因素[J].石油与天然气地质,2000,21(1):80～82 Li Guohui,Li Xiang,Yang Xinan.Controlling factors of Sinian gas pools in Caledonian paleouplift,Sichuan basin[J].Oil & Gas Geology,2000,21 (1):80-82
[2] 罗志立,刘顺,徐世琦.四川盆地震旦系含气层中有利勘探区块的选择[J].石油学报,1998,9(4):1～7 Luo Zhili,Liu Shun,Xu Shiqi.Selection of favorable area of exploration in Sinian bearing gas formation of Sichuan basin[J].Acta Petrolei Sinca,1998,9(4):1-7
[3] 徐世琦.加里东古隆起震旦-寒武系成藏条件[J].天然气工业,1999,19(6):7～10 Xu Shiqi.Conditions of forming reservoirs in Sinian-Cambrian of Caledonian ancient uplift[J].Natural Gas Industry,1999,19(6):7-10
[4] 邓涛.四川盆地加里东古隆起的构造机制和成藏模式[J].石油实验地质,1996,18(4):356～360 Deng Tao.Tectonic mechanism and pooling model of the Caledo-nian paleoswell in Sichuan basin[J].Petroleum Geology & Experiment,1996,18(4):356-360
[5] 徐世琦,洪海涛,师晓蓉.乐山-龙女寺古隆起与下古生界含油气性的关系探讨[J].天然气勘探与开发,2002,25(3):10～15 Xu Shiqi,Hong Haitao,Shi Xiaorong.Discussion on the relationship of the Leshan-Longnushi paleouplift and petroliferous property of Lower Palaeozoic strata[J].Natural Gas Exploration & Development,2002,25 (3):10-15
[6] 李晓清,汪泽成,张兴为,等.四川盆地古隆起特征及对天然气的控制作用[J].石油与天然气地质,2001,22(4):347～351 Li Xiaoqing,Wang Zecheng,Zhang Xingwei,et al.Characteristics of Paleo-uplifts in Sichuan basin and their control action on natural gases[J].Oil & Gas Geology,2001,22(4):347-351
[7] 赵宗举,朱琰,邓红婴,等.中国南方古隆起对中、古生界原生油气藏的控制作用[J].石油实验地质,2003,25(1):10～17 Zhao Zongju,Zhu Yan,Deng Hongying,et al.Control of Paleouplifts to the Meso-Paleozoic primary oil and gas pools in the south of China[J].Petroleum Geology & Experiment,2003,25(1):10-17
[8] 赵宗举,朱琰,徐云俊.中国南方古生界-中生界油气藏成藏规律及勘探方向[J].地质学报,2004,78(5):710～720 Zhao Zongju,Zhu Yan,Xu Yunjun.Formation rules and prediction of exploration targets of Paleozoic-Mesozoic oil-gas reservoirs in southern China[J].Acta Geologica Sinica,2004,78 (5):710-720
[9] 赵宗举,朱琰,王根海,等.叠合盆地油气系统研究方法--以中国南方中、古生界为例[J].石油学报,2002,23(1):11～18 Zhao Zongju,Zhu Yan,Wang Genhai,et al.The studying method of petroleum system in superposition basin:as an example by analyzing Mesozoic & Paleozoic in southern China[J].Acta Pe-trolei Sinca,2002,23(1):11-18
[10] 陈洪德,侯明才,许效松,等.加里东期华南的盆地演化与层序格架[J].成都理工大学学报(自然科学版),2006,33(1):1～8 Chen Hongde,Hou Mingcai,Xu Xiaosong,et al.Tectonic evolution and sequence stratigraphic framework in South China during Caledonian[J].Journal of Chengdu University of Technology (Science & Technology Edition),2006,33 (1):1-8
[11] 陈洪德,覃建雄,田景春,等.中国南方古生界层序格架中的生储盖组合类型及特征[J].石油与天然气地质,2004,25(1):62～69 Chen Hongde,Qin Jianxiong,Tian Jingchun,et al.Types and features of source-reservoir-cap rock combinations in Paleozoic sequence in southern China[J].Oil & Gas Geology,2004,25(1):62-69
[12] 赵宗举,俞广,朱琰,等.中国南方大地构造演化及其对油气的控制[J].成都理工大学学报(自然科学版),2003,30(2):55～168 Zhao Zongju,Yu Guang,Zhu Yan,et al.Tectonic evolution and its control over hydrocarbon in southern China[J].Journal of Chengdu University of Technology (Science & Technology Edition),2003,30(2):155-168
[13] 沃玉进,肖开华,周雁,等.中国南方海相层系油气成藏组合类型与勘探前景[J].石油与天然气地质,2006,27(1):11～16 Wo Yujin,Xiao Kaihua,Zhou Yan,et al.Types of marine plays in southern China and exploration prospects[J].Oil & Gas Geology,2006,27(1):11-16
[14] 马永生,楼章华,郭彤楼,等.中国南方海相地层油气保存条件综合评价技术体系探讨[J].地质学报,2006,80(3):406～417 Ma Yongsheng,Lou Zhanghua,Guo Tonglou,et al.An exploration on a technological system of petroleum preservation evaluation for marine strata in south China[J].Acta G eologica Sinica,2006,80(3):406-417
[15] Smith G T.Tectonic and eustatic singals in the sequence stratigraphy of the Upper Devonian,New York[J].AAPG Bull,2001,85 (2):309-325