渤海湾盆地济阳坳陷凹隆结构类型及其对沉积的控制作用

徐春华; 王亚琳

doi:10.11781/sysydz201705587

渤海湾盆地济阳坳陷凹隆结构类型及其对沉积的控制作用

doi: 10.11781/sysydz201705587

徐春华¹,
王亚琳²

1.
中国石化胜利油田分公司油气勘探管理中心, 山东东营 257015
2. 中国石化胜利油田分公司勘探开发研究院, 山东东营 257001

基金项目: 国家重大科技专项（2016ZX05006-003）资助。

详细信息

作者简介:
徐春华(1967—),男,博士,高级工程师,从事油气勘探综合研究及管理工作.E-mail:xch0524@sohu.com.

中图分类号: TE121.3
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出版历程
- 收稿日期: 2017-02-10
- 修回日期: 2017-08-07
- 刊出日期: 2017-09-28

Depression and apophysis structure type and its controls on deposition in the Jiyang Depression, Bohai Bay Basin

Xu Chunhua¹,
Wang Yalin²

1.
Oil and Gas Exploration Management Center, SINOPEC Shengli Oilfield, Dongying, Shandong 257015, China
2. Research Institute of Petroleum Exploration and Production, SINOPEC Shengli Oilfield, Dongying, Shandong 257001, China

摘要

摘要: 陡坡带砂砾岩体油藏是断陷盆地油气勘探的主要类型之一。钻井证实，渤海湾盆地济阳坳陷近EW向断层下降盘近源粗碎屑沉积物发育，而N（N）E向断层下降盘近源沉积欠发育或不发育。针对这一特殊地质现象，在凸起区剥蚀量恢复的基础上，探讨了凸起与凹（洼）陷的耦合关系，划分出凸隆凹降型和凹降凸隆型2种关系类型；以现代沉积考察为依据，提出物源区面积、剥蚀厚度以及物源沟谷发育程度等是近源沉积物发育与否的主控因素；研究了EW向断层和N（N）E向断层下降盘的沉积特点，指出在古近纪SN向拉张应力状态下，EW向断层属于同沉积断层，NNE向断层以右旋走滑作用为主，运动学性质和活动时间的不同是沉积差异性的主因。
- 断层性质 /
- 沉积差异性 /
- 沉积环境 /
- 凹隆结构 /
- 济阳坳陷 /
- 渤海湾盆地
Abstract: Glutenite oil deposits in steep slope zone are major hydrocarbon exploration targets in rift basins. Drilling proves that near-source coarse debris sediments were well developed on the downthrown side of EW oriented faults. On the contrary, near-source sediments seldom or even did not develop on the downthrown side of N(N)E oriented faults. The article discussed the coupling relationship between bulge and depression, and came up with two kinds of coupling relationship which are the mountain-upheaval basin-sedimentary type and basin-sedimentary mountain-upheaval type, focusing on this special phenomenon and based on the recovery of the denudation quantity in the bulge area. Provenance area, erosion thickness and passageway development degree determined whether near-source sediments deposited or not based on the studies of the Dabie orogenic belt. The deposition characteristics of the downthrown side of the EW and N(N)E oriented faults were analyzed, indicating that the EW faults are syndepositional ones and the N(N)E faults are right-lateral strike-slip ones influenced by the SN extensive stress during Paleogene. The difference between kinematic properties and activity time is the main cause of sedimentation difference.
- fault characteristics /
- sedimentation difference /
- sedimentation environment /
- depression and apophysis structure /
- Jiyang Depression /
- Bohai Bay Basin

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