| 104 | 0 | 115 |
| 下载次数 | 被引频次 | 阅读次数 |
东河砂岩是塔里木盆地深层一套优质海相碎屑岩储层和重要油气产层,在层序上属于典型的缓坡陆棚Ⅰ型层序低位体系域和海侵体系域沉积,其中低位体系域仅在盆地西南部发育低位楔,缺乏盆底扇和斜坡扇。目前低位楔东河砂岩的勘探和研究程度较低,影响了对其勘探潜力和有利区的评价。本次研究以二维地震和三维地震、钻测井和岩心等资料对低位楔东河砂岩进行系统研究,结果表明低位楔东河砂岩在地震剖面上有多个明显的亚层序前积结构特征,且由多个向上变粗准层序构成,对应多个前积准层序组。单个准层序组砂体厚约30 m,宽约30 km,多个准层序组叠置形成规模巨大的低位楔砂体,厚度可达100 m,长、宽超100 km。通过以前积准层序组为单元的横向对比,建立新的砂体等时对比方案,恢复同一砂体的时空展布,进而在层序内识别出多级分隔层。结合录井、测井解释和试油等勘探成果分析认为,稳定分布的二级分隔层有可能成为有效的油气遮挡层,在过去认为的均质东河砂岩内部可能具备形成地层—构造复合型油气藏的地质条件。低位楔东河砂岩亚层序结构的研究为该区下一步的油气勘探提供了新的思路和方法,有助于低位楔勘探领域的深化研究。
Abstract：The Donghe sandstone is a favorable deeply buried marine clastic reservoir and an important hydrocarbon-bearing formation in the Tarim Basin. In sequence stratigraphy, it belongs to deposits of the lowstand systems tracts and transgressive systems tracts of the typical Type 1 sequence in a shelf margin slope. In lowstand system tract, only a lowstand wedge was developed in the southwest of the Tarim basin, lacking bottom-fan and slope-fan deposits. Currently, the exploration and research of the lowstand wedge Donghe Sandstone are at a relatively low level, which has affected the assessment of its exploration potential and favorable areas. In this study, we systematically investigated the Donghe Sandstone using 2D and 3D seismic data, loggings, cores, and other geological datasets. Results show that the Donghe Sandstone exhibits multiple distinct subsequence progradation structures shown in the seismic profiles, characterized by multiple upward-coarsening parasequences that correspond to several progradational parasequence sets. The parasequence sets are approximately 30-m thick and 30-km wide. The superimposition of multiple parasequence sets formed massive lowstand wedge sand bodies, with thickness reaching up to 100 m, and length or width exceeding 100 km. Through lateral correlation using the prograding parasequence sets as units, a new scheme for isochronous sand body correlation was established, enabling the restoration of spatial and temporal distribution of the same sand body. Multiple levels of sealing layers were identified within the sequence. Combined with logging, well test interpretation, and other exploration results, we believed that the stable distribution of secondary sealing layers may serve as effective barrier beds. The Donghe Sandstone that was previously considered homogeneous might possess the geological conditions for forming stratigraphic-structural composite hydrocarbon reservoirs. This study provided new ideas and methods for future hydrocarbon exploration in the area, and facilitated deeper research for lowstand wedge reservoirs.
陈秀艳,罗平,贾进华,马德波,周波. 2013.塔北中部石炭系东河砂岩物源及沉积体系[J].海相油气地质, 18(2):23-30.
顾家裕. 1996.塔里木盆地石炭系东河砂岩沉积环境分析及储层研究[J].地质学报, 70(2):153-161.
顾家裕,张兴阳,郭彬程. 2006.塔里木盆地东河砂岩沉积和储层特征及综合分析[J].古地理学报, 8(3):285-294.
关晓东,郭磊. 2023.深层—超深层油气成藏研究新进展及展望[J].石油实验地质, 45(2):203-209.
何登发,贾承造,赵文智,徐凤银,罗晓容,刘文汇,唐勇,高山林,郑秀娟,李涤,郑娜. 2023.中国超深层油气勘探领域研究进展与关键问题[J].石油勘探与开发, 50(6):1162-1172.
贾承造. 1997.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社.
贾进华,申银民. 2017.塔里木盆地东河砂岩段准层序组特征及岩相古地理与砂体分布[J].石油学报, 38(2):135-149.
贾进华,申银民. 2023.海相砂体准层序对油气分布的控制作用:以塔北哈拉哈塘地区东河砂岩为例[J].地层学杂志, 47(2):132-143.
李亚林. 2024.超深层油气地震勘探技术进展[J].石油地球物理勘探,59(4):915-924.
李玉冠,邓兴梁,吐尔逊江. 1998.巴什托普石炭系油气藏成藏规律[J].新疆石油地质, 19(3):207-209.
刘永福,赵建华,范秋海,林畅松,孙琦,黄理力. 2014.塔北隆起哈拉哈塘凹陷东河砂岩成岩作用及其控制因素[J].现代地质, 28(3):635-644.
马永生,蔡勋育,黎茂稳,李慧莉,朱东亚,邱楠生,庞雄奇,曾大乾,康志江,马安来,石开波,张军涛. 2024.深层—超深层海相碳酸盐岩成储成藏机理与油气藏开发方法研究进展[J].石油勘探与开发,51(4):692-707.
申银民,黄智斌. 1997.塔里木盆地东部石炭系层序地层格架及储盖分布特征[C]//第五届全国沉积学及岩相古地理学学术会议集.新疆乌鲁木齐:新疆科技卫生出版社, 473-475.
申银民,贾进华,齐英敏,孙雄伟,周波,马德波,高力. 2011.塔里木盆地上泥盆统—下石炭统东河砂岩沉积相与哈得逊油田的发现[J].古地理学报, 13(3):279-286.
申银民,李明和,吴建国,李梅. 2009.塔北南缘东河砂岩沉积演化与砂体分布[C]//塔里木油田会战43周年论文集.北京:石油工业出版社,316-321.
孙龙德,江同文,徐汉林,单家增,练章贵. 2009.塔里木盆地哈得逊油田非稳态油藏[J].石油勘探与开发, 36(1):62-67.
童晓光,梁狄刚. 1992.塔里木盆地油气勘探论文集[M].乌鲁木齐:新疆科技卫生出版社.
王开宇,王超,范家伟,徐彦龙,冉丽君. 2020.海相巨厚砂岩油藏夹层精细地质建模方法研究[J].西南石油大学学报(自然科学版), 42(3):69-79.
王洋,刘婧,汪建国,石开波,王超,牛玉杰,邵光强,刘波. 2015.塔里木盆地东河1油藏东河砂岩隔夹层形成的主控因素及流体来源[J].石油学报, 36(2):174-181.
王招明,田军,申银民,周黎霞,王振宇. 2004a.塔里木盆地晚泥盆世—早石炭世东河砂岩沉积相[J].古地理学报, 6(3):289-296.
王招明,王清华,孙丽霞,李宇平,李文华. 2004b.东河砂岩钙结成岩作用的主要特征[J].地质科学, 39(4):517-522.
王兆明,温志新,贺正军,陈瑞银,石浩程,陈曦. 2022.全球近10年油气勘探新进展特点与启示[J].中国石油勘探, 27(2):27-37.
吴伟,郑伟,刘惟庆,代一丁,秦成岗. 2013.珠一江口盆地白云北坡韩江组层序格架及富砂沉积体研究[J].中国石油大学学报(自然科学版), 37(3):23-29.
吴因业,孙龙德,顾家裕,侯宇安,舒红,牛新. 2008.塔里木盆地满西地区石炭系东河砂岩沉积层序分析与储集层评价[J].古地理学报,10(1):13-24.
杨海军,李勇,单家增,敬兵,冯晓军,汪道京. 2007.岩石物性对油气成藏过程的控制作用:以塔里木盆地麦盖提斜坡为例[J].岩石学报, 23(4):823-830.
张惠良,杨海军,寿建峰,张荣虎,耿忠霞,王波. 2009.塔里木盆地东河砂岩沉积期次及油气勘探[J].石油学报, 30(6):835-842.
张忠涛,秦成岗,高鹏,屈亮,刘道理,徐徽,徐乐意,周凤娟. 2011.珠江口盆地白云凹陷北坡陆架坡折带地质特征及其油气勘探潜力[J].天然气工业, 31(5):39-44, 116.
周波,贾进华,陈秀艳. 2013.塔北东河砂岩次生油藏油气运聚模式及启示[J].西南石油大学学报(自然科学版), 35(4):25-34.
朱筱敏,张强,吕雪雁,孙超. 2005.塔里木盆地塔北与塔中地区东河砂岩段沉积特征对比[J].中国地质, 32(4):648-654.
Mitchum R J, Van Wagoner J C, Ward S B. 1977. The Role of SeismicStratigraphy in Exploring for Hydrocarbons in Unexplored Areas:ACase Study from the Gulf of Mexico[J]. AAPG, 61(4):380-395.
Vail P R. 1987. Seismic stratigraphy interpretation using sequence strati-graphy. Part 1; seismic stratigraphy interpretation procedure[M]//Bally A W(ed.). Atlas of Seismic Stratigraphy, v.1. AAPG Studies inGeology, 27:1-10.
Vail P R, Mitchum R M, Thompson S.1977.Seismic stratigraphy and globalchanges of sea level[J]. AAPG Memoir, 26:63-97.
van Wagoner J C, Mitchum R M, Campion K M, Rahmanian V D. 1990.Siliciclastic sequence stratigraphy in well logs, cores and outcrops:concepts for high-resolution correlation of time and facies[M]. Tulsa,Oklahoma:American Association of Petroleum Geologists.
Weimer P, Posamentier H W. 1993. Recent developments and applicationsin siliciclastic sequence stratigraphy[M]//Siliciclastic SequenceStratigraphy:Recent Developments and Applications. Tulsa:AmericanAssociation of Petroleum Geologists.
Wilson S M, Clifford A C, Kenneth A E, Dennis O T. 2016. An incisedvalley fill and lowstand wedges in the Upper Devonian ForeknobsFormation, central Appalachian Basin:Implications for Famennianglacioeustasy[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,446:125-143.
基本信息:
DOI：10.19839/j.cnki.dcxzz.2025.0023
中图分类号:P618.13
引用信息:
[1]申银民,贾进华,彭丽,等.塔里木盆地低位楔东河砂岩的前积亚层序特征和地质意义[J].地层学杂志,2025,49(03):316-325.DOI:10.19839/j.cnki.dcxzz.2025.0023.
基金信息:
中国石油天然气股份公司攻关性应用性科技专项(2023ZZ14)资助