西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (3): 24-32.

• 地质勘探 • 上一篇    下一篇

泌阳凹陷付湾—张厂地区砂坝微相沉积特征

秦 飞1,2,姚光庆2,马伟竣2,3,张 磊2,4,金燕林1,2   

  1. 1. 中国石化西北油田分公司,新疆 乌鲁木齐 8300112. 中国地质大学(武汉)资源学院,湖北 武汉 4300743. 中国石化华东油田分公司,江苏 南京 2100114. 中海油湛江油田分公司,广东 湛江 524057
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-06-01 发布日期:2012-06-01

Sedimentary Characteristics of Beach-bar Sandbodies in Fuwan andZhangchang Area in Biyang Depression

Qin Fei, Yao Guangqing, Ma Weijun, Zhang Lei, Jin Yanlin   

  1. 1. Northwest Oilfield Branch of SINOPEC,Urumqi,Xinjiang 830011,China2. Faculty of Resources,University of Geology(Wuhan),Wuhan,Hubei 430074,China3. East China Oilfield Branch of SINOPEC,Nanjing,Jiangsu 210011,China4. Zhanjiang Oilfield Company of CNOOC,Zhanjiang,Guangdong 524057,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-06-01 Published:2012-06-01

摘要:

付湾—张厂地区位于泌阳凹陷北部斜坡带的中部,由于正向构造不明显、断块构造发育、砂岩岩性较为发育,
具有潜在隐蔽油气藏的聚集条件。以核三段 IV—VI 油组为例,从岩芯、测井、粒度等资料入手,结合区域地质背景,
通过砂坝微相沉积特征分析及平面相、剖面相展布规律分析,进一步建立了滩坝沉积模式。研究发现:(1)本区砂坝微
相岩性以细砂岩、粉砂岩、泥质粉砂岩为主;测井曲线为宽指型和反旋回漏斗型;粒度概率曲线多为滚动组分不发育的
两段式;沉积构造以波状和交错层理为主;沉积相序列主要为反相序;滩、坝共生,发育部位一致性强。(2)砂坝微相
在 IV—VI 油组均有发育,IV 油组发育规模最大;滩微相在 V 油组局部井发育,规模较小。

关键词: 泌阳凹陷, 砂坝微相, 滩微相, 沉积特征, 沉积模式

Abstract: Abstract:Fuwan and Zhangchang Area is located in the center of north clinoform zone in Biyang Depression,which is of pos-
sibility to become a subtle reservoir,as a result of inconspicuous positive structure,growth of fault block architecture and fairly
growth of sandstone lithology. Taking reservoir group IV—VI for example,combining with core observation,well logging,
grain size and areal geology information,this paper establishes a model of beach-bar in study area,when sedimentary charac-
teristics and dimensional distribution discipline of beach-bar facies is determinate. First,the main lithology is fine sandstone,
siltstone and pelitic siltstone in study area,and logging trace is like egg with symmetric transition and funnel with converse
circle,and grain probability curve is two-stage with no roll components mostly,and the main sedimentary structure is wave
bedding and cross bedding,many biological burrows and much commotion structure included,and depositional sequence is
mainly adverse facies sequence,besides,beach facies and bar facies are symbiotic,and vegetal area has strong compatibility.
Second,bar facies grows in IV—VI Group,especially in IV Group. Beach facies just grows in a few wells in V Group in a
small way.

Key words: Key words:Biyang Depression, bar facies, beach facies, sedimentary characteristics, sedimentary model