|本期目录/Table of Contents|

[1]孙六一,蒲仁海,马占荣,等.河套盆地吉兰泰凹陷烃源岩展布与勘探潜力[J].地球科学与环境学报,2018,40(05):612-626.
 SUN Liu-yi,PU Ren-hai,MA Zhan-rong,et al.Source Rock Distribution and Exploration Prospect of Jilantai Sag in Hetao Basin, China[J].Journal of Earth Sciences and Environment,2018,40(05):612-626.
点击复制

河套盆地吉兰泰凹陷烃源岩展布与勘探潜力(PDF)
分享到:

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第40卷
期数:
2018年第05期
页码:
612-626
栏目:
基础地质与矿产地质
出版日期:
2018-09-15

文章信息/Info

Title:
Source Rock Distribution and Exploration Prospect of Jilantai Sag in Hetao Basin, China
文章编号:
1672-6561(2018)05-0612-15
作者:
孙六一蒲仁海马占荣王飞
1.中国石油长庆油田分公司勘探开发研究院,陕西 西安 710018; 2.西北大学地质学系,陕西 西安 710069
Author(s):
SUN Liu-yi PU Ren-hai MA Zhan-rong WANG Fei
1. Research Institute of Exploration and Development, Changqing Oilfield Company, PetroChina, Xi’an 710018, Shaanxi, China; 2. Department of Geology, Northwest University, Xi’an 710069, Shaanxi, China
关键词:
烃源岩烃源对比地层对比固阳组地震相沉积相勘探潜力河套盆地
Keywords:
source rock oil source comparison stratigraphic correlation Guyang Formation seismic facies sedimentary facies exploration prospect Hetao Basin
分类号:
P618.13
DOI:
-
文献标志码:
A
摘要:
河套盆地吉兰泰凹陷西北坡的金属探矿井在数百米深的元古界变质岩裂缝中发现轻质原油,揭示了该凹陷存在一定生烃潜力。利用地震相分析来解决固阳组沉积相带和烃源岩展布已成为评价该凹陷勘探潜力的重要问题。根据露头、钻井和地震等资料重点开展了地层对比、地震相和烃源岩展布等综合研究。结果表明:河套盆地吉兰泰凹陷下白垩统固阳组为断陷盆地近源旱地扇沉积,在固一段发育两期扇三角洲—半深湖沉积,松探1井、松探2井和吉参1井在固一段钻遇薄层暗色泥岩;暗色泥岩波阻抗高于砂岩,在地震剖面上形成强振幅反射;地震模型和属性分析表明湖相暗色泥岩沿NE向凹陷中心分布,最大累计厚度为45 m,一般为20~30 m;暗色泥岩总有机碳介于0.31%~2.63%,为Ⅱa-Ⅲ型,露头区烃源岩过成熟,松探1井为未熟—低熟状态;金属探矿井(ZK500井)540 m深度处变质岩裂缝原油和松探1井2 270 m深度处的4 m油砂含油属于同一油源,生烃期为上新世末期;地震剖面和航磁异常指示了ZK500井附近存在上拱的侵入体,导致了凹陷烃源岩成熟度的横向快速变化;有利生烃和勘探区应位于埋深较大的吉兰泰凹陷北部深凹带。
Abstract:
In the northwest slope of Jilantai sag, Hetao Basin, the light crude oil display is found in the fractures of Proterozoic metamorphic rocks buried in hundreds of meters. This reveals that there is a certain hydrocarbon generating potential in the area. Using seismic facies analysis to solve sedimentary facies belts and distribution of source rocks of Guyang Formation is an important issue for evaluating the exploration potential of Jilantai sag. According to the outcrops, drilling and seismic data, the stratigraphic correlation, seismic facies and distribution of source rocks were comprehensively studied. The results show that the Lower Cretaceous Guyang Formation in Jilantai sag of Hetao Basin is a rift basin with dry climate proximal fan deposits intercalated by two periods of fan dalta-semi deep acustrine facies; wells TS1, TS2 and JC1 drilled in the sag have a number of thin layers of dark mudstone in Gu1 Member; the acoustic impedance of lacustrine shale and limestone is higher than that of sandstone, and the lacustrine deposition forms strong amplitude reflection on seismic sections; the thickness of dark shale is 20-30 m with the maximum of 45 m, and it distributes along the center of NE sag; the total organic carbon(TOC) of dark shale is 0.31%-2.63% with the type of Ⅱa-Ⅲ; the source rocks in outcrop are overmature, but well ST1 is immature-low mature; the oil from fractures of metamorphic rock at the depth of 540 m in metal exploration well ZK500 belongs to the same source of oil from 4 m oil sand at the depth of 2 270 m in well ST1, and the hydrocarbon generation periods should be the end of Pliocene; the aeromagnetic anomaly and seismic reflection suggest that there is upwarp intrusion near well ZK500, resulting in the fast lateral change of source rock maturity in Jilantai sag; the favorable hydrocarbon generating and exploration areas should be located in a fault convex zone with greater depth, the northern part of Jilantai sag.

参考文献/References:

-

相似文献/References:

[1]杨华,张文正,刘显阳,等.优质烃源岩在鄂尔多斯低渗透富油盆地形成中的关键作用[J].地球科学与环境学报,2013,35(04):1.
 YANG Hua,ZHANG Wen-zheng,LIU Xian-yang,et al.Key Role of High-quality Source Rocks on the Formation of Low-permeability Oil-rich Reservoirs in Ordos Basin[J].Journal of Earth Sciences and Environment,2013,35(05):1.
[2]冯冲,邹华耀,郭彤楼,等.川东北及邻区上二叠统吴家坪组烃源岩评价[J].地球科学与环境学报,2013,35(04):18.
 FENG Chong,ZOU Hua-yao,GUO Tong-lou,et al.Evaluation of Source Rocks in Upper Permian Wujiaping Formation of Northeast Sichuan and Its Adjacent Area[J].Journal of Earth Sciences and Environment,2013,35(05):18.
[3]李艳,张秀颀,逯晓喻,等.松辽盆地上古生界烃源岩特征及有效性分析[J].地球科学与环境学报,2013,35(04):39.
 LI Yan,ZHANG Xiu-qi,LU Xiao-yu,et al.Characteristics and Validity Analysis of Hydrocarbon Source Rocks of Upper Paleozoic in Songliao Basin[J].Journal of Earth Sciences and Environment,2013,35(05):39.
[4]姜星,于建青,史飞,等.鄂尔多斯盆地子北地区长6段油藏成藏条件及主控因素[J].地球科学与环境学报,2014,36(04):64.
 JIANG Xing,YU Jian-qing,SHI Fei,et al.Hydrocarbon Accumulation Condition and Main Controlling Factors of Chang-6 Reservoir in Zibei Area of Ordos Basin[J].Journal of Earth Sciences and Environment,2014,36(05):64.
[5]吉利明,梁晓飞,贺聪,等.鄂尔多斯盆地西峰地区延长组烃源岩两环烷烃分布特征及其生源[J].地球科学与环境学报,2015,37(01):76.
 JI Li-ming,LIANG Xiao-fei,HE Cong,et al.Distribution of Bicyclic Alkanes of Source Rocks of Yanchang Formation in Xifeng Area of Ordos Basin and Their Biological Sources[J].Journal of Earth Sciences and Environment,2015,37(05):76.
[6]刘成林,徐韵,马寅生,等.柴达木盆地北部滩间山群碳沥青地球化学特征与成因[J].地球科学与环境学报,2015,37(01):85.
 LIU Cheng-lin,XU Yun,MA Yin-sheng,et al.Geochemical Characteristics and Origin of Anthraxolite of Tanjianshan Group in the Northern of Qaidam Basin[J].Journal of Earth Sciences and Environment,2015,37(05):85.
[7]冯冲,邹华耀,郭彤楼.四川盆地晚二叠世—早三叠世沉积演化及其对天然气富集的意义[J].地球科学与环境学报,2015,37(04):44.
 FENG Chong,ZOU Hua-yao,GUO Tong-lou.Late Permian-Early Triassic Sedimentary Evolution in Sichuan Basin and Its Significance on Gas Accumulation[J].Journal of Earth Sciences and Environment,2015,37(05):44.
[8]杨伟伟,石玉江,李剑峰,等.鄂尔多斯盆地华池地区X96井长7烃源岩地球化学特征及其对致密油成藏的意义[J].地球科学与环境学报,2016,38(01):115.
 YANG Wei-wei,SHI Yu-jiang,LI Jian-feng,et al.Geochemical Characteristics of Chang-7 Source Rocks from Well X96 in Huachi Area of Ordos Basin and Their Significance on Tight Oil Accumulation[J].Journal of Earth Sciences and Environment,2016,38(05):115.
[9]杨华,张文正,彭平安,等.鄂尔多斯盆地中生界湖相油型油的精细划分与油源对比[J].地球科学与环境学报,2016,38(02):196.
 YANG Hua,ZHANG Wen-zheng,PENG Ping-an,et al.Oil Detailed Classification and Oil-source Correlation of Mesozoic Lacustrine Oil in Ordos Basin[J].Journal of Earth Sciences and Environment,2016,38(05):196.
[10]付广,胡欣蕾.利用断层岩泥质含量判断断层垂向封闭性的方法及其应用[J].地球科学与环境学报,2016,38(05):660.
 FU Guang,HU Xin-lei.Method of Fault Vertical Sealing Ability Judged by the Mudstone Content of Fault-rock and Its Application[J].Journal of Earth Sciences and Environment,2016,38(05):660.

备注/Memo

备注/Memo:
收稿日期:2018-05-04;修回日期:2018-07-05
基金项目:国家自然科学基金项目(41390451);中国石油长庆油田分公司区域勘探项目(技2016-66)
作者简介:孙六一(1961-),男,甘肃平凉人,高级工程师,E-mail:sly_cq@petrochina.com.cn。
通讯作者:蒲仁海(1962-),男,陕西宝鸡人,教授,博士研究生导师,理学博士,E-mail:purenhai@nwu.edu.cn。
更新日期/Last Update: 2018-10-01