A DISCUSSION OF CRETACEOUS BOTTOM UNCONFORMITY DIVISIONIN BACK LAND OF SHENGBEI DEPRESSION AND ITS SOUTHEAST, TUHA BASIN
Received date: 2007-06-01
Revised date: 2007-10-08
Online published: 2008-06-20
A new set of oi- and gas-bearing reservoirs between Cretaceous and Jurassic have been found in the Honglian oilfield, Tuha basin. But there are different opinions on its classification, which has negative effect on the naming, correlation of the stratum, and the evaluation of oil and gas exploration potential as well as the making of development technology policies. The unconformity surface between the Cretaceous and Jurassic resulted from the second episode of Yanshanian tectonic movement. This paper presents the correlation and demonstration of several opinions on the new oil and gas-bearing reservoir classification based on the integration of multi disciplinary information such as core, logging and seismic feature, etc. It is concluded that the new oil and gas bearing reservoirs discovered in Well Hongnan9-12 should be classified to the Lower Cretaceous, for it is located above the unconformity surface between the Cretaceous and Jurassic.
Key words： Tuha basin; Unconformity; Cretaceous; Clay; Heavy minerals; Sequence boundary.
LUO Quan-sheng, . A DISCUSSION OF CRETACEOUS BOTTOM UNCONFORMITY DIVISIONIN BACK LAND OF SHENGBEI DEPRESSION AND ITS SOUTHEAST, TUHA BASIN[J]. Natural Gas Geoscience, 2007 , 18(6) : 843 -847 . DOI: 10.11764/j.issn.1672-1926.2007.06.843
[1]袁明生，梁世君，燕列灿，等.吐哈盆地油气地质与勘探实践［M］.北京:石油工业出版社，2002：49.
［2］方世虎，宋岩，贾承造，等.准噶尔盆地白垩系底部砾岩与油气成藏的关系［J］.天然气工业，2006，26（5）：14.
［3］洪太元，蔡希源，何治亮,等.准噶尔盆地腹部白垩系底部不整合特征［J］.新疆地质，2006，24（3）：229-230.
［4］Chang C，Chen N，Coqard M P，et al.Preliminary conclusions of the royal society and academica sinica，1985 geotraverse of tibet［J］.Nature，1986,323：501-507.
［5］Jolivet M，Bruneim M，Seward D，et al.Mesozoic and Cenozoic tectonics of the northern edge of the Tibetan Plateau：Fission-track constrains［J］．Tectono Physics，2001(343)：111-134．
［6］MATTE P，TAPP0NNIER P，ARNAUD N，et al.Tectonics of western Tibet，between the Tarim and the Indus［J］．Earth Planet Sci Lett，1996(142)：311-330．
［7］方世虎，郭召杰，吴朝东,等.准噶尔盆地南缘侏罗系碎屑成分特征及其对构造属性、盆山格局的指示意义［J］.地质学报，2006，80（2）：201-204.
［8］李双建，王清晨，李忠．库车坳陷库车河剖面重矿物分布特征及其地质意义［J］.石矿物学杂志，2005，24(1)：54-6l.
［9］靳卫广，梅冥相.库车盆地白垩纪层序地层格架与古地理演化［J］.新疆石油天然气，2005，1（1）：14.
［10］赵杏媛，罗俊成，杨帆.粘土矿物研究成果在塔里木盆地油气勘探中的应用［J］.新疆石油地质，2006，26（5）：570-573.
［11］刘宝珺.沉积岩石学［M］. 北京：地质出版社，1980：64-73.
［12］胡见义，黄第藩，徐树宝,等.中国陆相石油地质理论基础［M］.北京：石油工业出版社，1994：135-138.
［13］刘宝君，李伟，付建奎,等.吐哈盆地台北凹陷粘土矿物纵向异常演化与成因分析［J］.地球科学:中国地质大学学报，2002，27（5）：504-508.
［14］邓磊，李文厚，袁明生.吐鲁番—哈密盆地的砂岩特点及构造意义［J］.沉积学报，1999，17（1）:97-98.
［15］邓磊，李文厚，袁明生.吐鲁番—哈密盆地陆源碎屑沉积环境及物源分析［J］.沉积学报，1999，17（3）：97-98.
［16］张代生，李成明.吐哈盆地台北凹陷沉积体系迁移对油气分布的控制［J］.石油与天然气地质，2000，21（1）：71-75.
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