南图尔盖盆地Doshan地区底辟构造的发现及勘探意义

doi:10.11743/ogg20130415

石油与天然气地质 ›› 2013, Vol. 34 ›› Issue (4): 528-532.doi: 10.11743/ogg20130415

南图尔盖盆地Doshan地区底辟构造的发现及勘探意义

代寒松¹, 洪亮¹, 张明军², 张静¹, 张亚军¹, 王鑫¹

1. 中国石油勘探开发研究院西北分院, 甘肃兰州 730020;
2. 中国石油勘探开发研究院, 北京 100083

收稿日期:2012-05-17 修回日期:2013-07-18 出版日期:2013-08-28 发布日期:2013-08-27
作者简介:代寒松(1981- ),男,工程师,矿产普查与勘探。E-mail:3488467702@qq.com。

Discovery of diapir structure and its significances for exploration in Doshan area, South Turgai Basin

Dai Hansong¹, Hong Liang¹, Zhang Mingjun², Zhang Jing¹, Zhang Yajun¹, Wang Xin¹

1. Northwest Institute, PetroChina Research Institute of Petroleum Exploration and Development, Lanzhou, Gansu 730020, China;
2. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China

Received:2012-05-17 Revised:2013-07-18 Online:2013-08-28 Published:2013-08-27

摘要/Abstract

摘要： Doshan地区新发现的底辟构造具有典型的双重性,其浅层碳酸盐岩底辟在叠加于下伏深部底辟构造上的同时,还保持与下部底辟构造形态的一致性。底辟构造规模普遍较小,平面多呈NW-SE向展布。综合区域应力背景、塑性层形变、裂解气显示等相关要素分析,认为底辟构造属深源型底辟,其形成发育主要受控于晚白垩世。南图尔盖盆地大规模走滑、抬升变形过程中,基底深部古断裂再次活动导致深部物质沿断层小规模上拱。此类构造的发现在为构造研究提供全新模式的同时,也为南图尔盖盆地油气勘探提供了一个新的领域。在位于斜坡-潜山带的底辟构造,有着良好的油气成藏条件,是寻找相关构造、岩性油气藏的理想区域,应作为后期油气勘探的重点。

关键词: 油气运移、聚集, 底辟构造, 潜山斜坡带, Doshan地区, 南图尔盖盆地

Abstract: The diapir structure newly defined in Doshan area,South Turgai Basin is a typical duplex structure.The lower carbonate diapir superimposes on the deeper one,and maintains the consistency of structural configuration with that of the latter at the same time.These small-scale diapir structures are generally on NW-SE trend.They are recognized as deep-source diapirs based on their regional stress background,plastic deformation,and pyrolysis gas show.Their development is mainly controlled by the upswelling of deep materials along small-scale faults due to the revitalization of deep base paleo-faults during the Late Cretaceous large-scale strike-slipping and uplifting deformation in southern Turgai Basin.The discovery of this kind of structures not only provides a new mode of tectonic research,but also a new domain of petroleum exploration in southern Turgai Basin.Diapir structures located in slope-burial hill belt have favorable accumulation conditions,and are favorable targets for discovering structural and/or lithologic hydrocarbon reservoirs.

Key words: hydrocarbon migration and accumulation, diapir structure, burial hill-slope belt, Doshan area, South Turgai Basin

中图分类号:

TE121.2

代寒松,洪亮,张明军,等. 南图尔盖盆地Doshan地区底辟构造的发现及勘探意义[J]. 石油与天然气地质, 2013, 34(4): 528-532. doi: 10.11743/ogg20130415 Dai Hansong,Hong Liang,Zhang Mingjun,et al. Discovery of diapir structure and its significances for exploration in Doshan area, South Turgai Basin[J]. Oil & Gas Geology, 2013, 34(4): 528-532. doi: 10.11743/ogg20130415

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南图尔盖盆地Doshan地区底辟构造的发现及勘探意义

Discovery of diapir structure and its significances for exploration in Doshan area, South Turgai Basin

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