新疆石油地质

新疆石油地质 ›› 1995, Vol. 16 ›› Issue (2): 127-134.

• • 上一篇    下一篇

色力布亚地区T8波组及地震异常体的地质解释

杨品   

  1. 新疆石油学院 乌鲁木齐 830000
  • 收稿日期:1995-03-28 出版日期:1995-06-01 发布日期:2020-07-29
  • 作者简介:副教授 石油物探

GEOLOGICAL INTERPRETATIONS OF T8 REFLECTION WAVE GROUP AND SEISMIC ANOMALOUS BODY IN SERIKBUYA AREA, TARIM BASIN

Yang Pin   

  1. Vice Professor, Geophysical Exploration, Xinjiang Petroleum Institute, Urumqi, 830000
  • Received:1995-03-28 Online:1995-06-01 Published:2020-07-29

PDF

170

摘要： T8反射波组是塔里木盆地色力布亚地区最显著和最稳定的地震反射层宇之一, 可分为强振幅高连续多相位、强振幅高连续汉相位和中振幅中连续减薄尖灭三种地震相类型, 地质层位归属下第三系, 气映了一套以泻湖相石膏及膏泥岩为主的沉积, 色力布亚西南部则可能发育正常的海相灰岩。T8波组中的地震异常反射, 依据外形可分为丘状、透镜状和滩状, 其农因可归结为方地貌响应、岩性响应和断层响三个方面。T8层序不具备有利的储集条件。而可作为良好的区域性盖层。

关键词: 塔里木盆地, 色力布亚地区, 早第三纪, 地层, T8反射波组, 地震异常, 古地形, 石膏

Abstract: T8 reflection wave group (Paleogene) is one of the most noteble and stable seismic reflection sequences in Serikbuya area of Tarim basin, which includes three types of seismic facies: high-amplitude, highly continuous, polyphases; high-amplitude, highly continuous, dual phases, and moderate-amplitude, moderately continuous, thinning out, indicating the sedimentary dominated by lagoonal gypsum and gypsiferous mudstone, and normal marine limestone probably developed in southwestern part of Serikbuya. In accordance with the appearance, seismic anomaly reflection of T8 wave group can be divided into hummocky, lenticular and bank anomalous body attributed to paleogeomorphology response, lithological response and fault response. T8 sequence is believed to have no reservoir available, but it can be a good areal caprock.

Key words: Tarim basin, Serikbuya area, Paleogene, Formation, T8 reflection wave group, Seismic anomaly, Paleotopography, Gypsum