[1]邱隆伟,杜双虎,代莉,等.孤北洼陷沙三段沉积特征及其控制因素[J].新疆石油地质,2019,(02):161.[doi:10.7657/XJPG20190206]
 QIU Longwei,DU Shuanghu,DAI Li,et al.Sedimentary Characteristics and Their Controlling Factors of the Third Member of Shahejie Formation in Gubei Sag[J].Xinjiang Petroleum Geology,2019,(02):161.[doi:10.7657/XJPG20190206]
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孤北洼陷沙三段沉积特征及其控制因素()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
期数:
2019年02期
页码:
161
栏目:
出版日期:
2019-03-28

文章信息/Info

Title:
Sedimentary Characteristics and Their Controlling Factors of the Third Member of Shahejie Formation in Gubei Sag
文章编号:
1001-3873(2019)02-0161-07
作者:
邱隆伟12杜双虎12代莉3张在鹏3孙超4辛也4
(1.中国石油大学 地球科学与技术学院,山东 青岛 266580;2.海洋国家实验室 海洋矿产资源评价与探测技术功能实验室,山东 青岛 266071;3.中国石化 胜利油田分公司 桩西采油厂,山东 东营  257000;4.中国石化 胜利油田分公司 地质科学研究院,山东 东营 257015)
Author(s):
QIU Longwei12 DU Shuanghu12 DAI Li3 ZHANG Zaipeng3 SUN Chao4 XIN Ye4
(1.School of Geosciences, China University of Petroleum, Qingdao, Shandong 266580, China; 2.Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong 266071, China; 3.Zhuangxi Oil Production Plant, Shengli Oilfield Company, Sinopec, Dongying, Shandong 257000, China; 4.Research Institute of Geological Sciences, Shengli Oilfield Company, Sinopec, Dongying, Shandong 257015, China)
关键词:
孤北洼陷沙河街组沙三段断陷湖盆沉积特征控制因素
Keywords:
Gubei sag Shahejie formation the third member of Shahejie formation faulted lacustrine basin sedimentary characteristic controlling factor
分类号:
TE122.2
DOI:
10.7657/XJPG20190206
文献标志码:
A
摘要:
孤北洼陷作为典型的双断湖盆,受周缘边界断层交替活动的影响,内部结构独特,物源体系复杂,沉积类型多样。因此,准确恢复沉积体系演化规律是指导该类湖盆油气勘探工作的关键。综合利用岩心、薄片、测井、录井和地震等资料,对孤北洼陷沙三段物源及沉积相展布特征进行精细研究。结果表明,孤北洼陷东西两侧的长堤断层和埕东断层的交替活动,造成湖盆整体具有“ 两洼夹一突”的地貌特征,北部桩南断层的强烈活动造成东次洼具有 “北断南超”的特点。湖盆内部整体受长堤、孤东、埕东和孤岛4个方向的物源控制。埕南陡坡断裂带分布进积型扇三角洲和退积型近岸水下扇,垂向上交替堆积,长堤陡坡断裂带分布进积型扇三角洲,孤北东缓坡带和孤北西缓坡带分布三角洲,来自孤东凸起的扇三角洲由洼陷东南部向北部延伸。总之,缓坡带受断层影响较小,地势平缓,以发育三角洲沉积为主,受到湖平面、古地貌的控制;陡坡带以断层活动和湖平面联合控制为主,地势陡,以近岸水下扇、扇三角洲和滑塌浊积扇沉积为主,平面分布范围较小。
Abstract:
As a typical double-faulted lacustrine basin, the Gubei sag is affected by the alternation of faults along the boundary. The internal structure of the lacustrine basin is unique, the source system is complex, and the deposition types are diverse. Therefore, the accurate evolution restoration of the sedimentary system is the key to guiding oil and gas exploration in this type of basin. In this paper, the core, thin section, logging and seismic data were comprehensively used to conduct a detailed study on the characteristics of the source and sedimentary facies distribution of the third member of Shahejie formation in Gubei sag. The results showed that the alternating activities of Changdi fault and Chengdong fault in the east and west sides of Gubei sag resulted in the geomorphic features of “one swell sandwiched by two sags” of the lake basin. The strong activity of Zhuangnan fault in the north caused the characteristic of “faulting in the north and overlapping in the south” in the eastern subsag. The interior of the lacustrine basin is mainly controlled by the provenances coming from the 4 directions of Chengdong, Changdi, Gudao and Gudong. Progradational fan delta and retrogradational subaqueous fan distributed on the Chengnan steep slope accumulated alternatively and vertically. Progradational fan deltas are distributed in the faulted belt of Changdi steep slope and deltas are distributed on the eastern and western gentle slopes of Gubei sag. The fan delta coming from Gudong swell extends from the southeast to the north in the sag. Generally, faults give a few impacts on the gentle slope where fan delta sediments are mainly found and controlled by lake level and ancient landform. The steep slope is mainly constrained by both fault activity and lake level, and is dominated by subaqueous fan, fan delta and slip turbidite fan

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更新日期/Last Update: 2019-03-28