琼东南盆地南部中新统生物礁的识别

张永贵; 宋在超; 周小进; 武丽; 张玺科; 冉静

doi:10.11781/sysydz201103307

琼东南盆地南部中新统生物礁的识别

doi: 10.11781/sysydz201103307

1.
中国石油化工股份有限公司石油勘探开发研究院, 北京100083
2. 中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 江苏无锡214151

详细信息

作者简介:
张永贵(1964- ),男,博士,高级工程师,从事油气地质与勘探研究工作.E-mail:zhangyongguiok.syky@sinopec.com.

中图分类号: TE122.2⁺21
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出版历程
- 收稿日期: 2011-03-07
- 修回日期: 2011-05-17
- 刊出日期: 2011-06-28

Identification of reef in Miocene, south of Qiongdongnan Basin

1.
SINOPEC Exploration and Production Research Institute, Beijing 100083, China
2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214151, China

摘要

摘要: 琼东南盆地南部地区在新近纪中新世梅山组沉积时期具有适合生物礁发育的古地理条件。近来在该区域采集的地震资料发现在梅山组地层存在典型的丘状反射,主要分布在古隆起上,底平顶凸,顶底界面清晰,反射能量强,内部具前积或杂乱反射,两翼见上超,顶部为披覆沉积,波阻抗值为(8~10)×10⁶kg/(m²·s),目前初步研究认为该套地层为生物礁建造。文章还从区域沉积背景、丘状体发育部位以及地震反射特征等方面对生物礁和泥构造两类地震反射异常体加以分析和对比,排除梅山组发育泥底劈的可能性。
- 地震反射特征 /
- 泥底辟 /
- 生物礁 /
- 中新统 /
- 琼东南盆地
Abstract: The southern part of the Qiongdongnan Basin was suitable for reef generation when the Meishan Formation deposited during Miocene.Seismic data collected in this region during the past few years have indicated that the Meishan Formation is characterized by typical mound reflection,mainly on ancient uplifts.The formation is flat at the bottom and convex at the top.There is clear boundary between top and bottom.The reflection is strong.Progradational or random reflection exists in the formation,while on the 2 flanks there is onlapping,and on the top there is drape.The wave impendence value is(8-10)×10⁶kg/(m²·s).The formation is regarded as reef according to present studies.Comparisons between reef and mud structure have been carried out based on the studies of regional sedimentary background,mound structure generation location and seismic reflection characteristics,indicating that it is impossible for shale diapire generation in the formation.
- seismic reflection characteristics /
- shale diapire /
- reef /
- Miocene /
- Qiongdongnan Basin

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参考文献(16)

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