Lithologic Reservoirs ›› 2014, Vol. 26 ›› Issue (1): 67-74.doi: 10.3969/j.issn.1673-8926.2014.01.011

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Sequence-based lithofacies and palaeogeographic characteristics of Chang 9 oil reservoir set in Longdong area, Ordos Basin

WANG Xinxin1， WANG Haihong2， ZHENG Rongcai1， HOU Changbing2， WANG Changyong1   

  1. 1. State Key Laboratory for Oil and Gas Reservoir Geology and Exploitation， Chengdu University of Technology， Chengdu 610059， China； 2. The Fourth Section of Ultra-low Permeability Reservoirs， PetroChina Changqing Oilfield Company， Qingyang 745100， Gansu， China
  • Online:2014-02-05 Published:2014-02-05

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Abstract:

Based on comprehensive analyses of core description, thin section observation, paleontology, source area and well logs, this paper studied the characteristics of sedimentary facies and sequence stratigraphy of Chang 9 oil reservoir set in Longdong area, Ordos Basin. It is determined that Chang 9 oil reservoir set belongs to shallow-water fluvial dominated delta system and it can be divided into one long-term, two middle-term and four short-term sequences. On the basis of the quantitative calculation of paleosalinity and its subarea, the position of palaeo-lakeshore during Chang 9 depositional stage was determined. According to the source area, sedimentary facies and sequence, the rising and falling base level phases of middle-term sequence cycles were selected as the isochronic stratigraphic unit to draw up the sequence-based lithofacies and paleogeography map of Chang 9 oil reservoir set in Longdong area. It is concluded that paleogeography features and sand body distribution are controlled by lake level fluctuation and source direction. Distributary channels and underwater distributary channels during the transgressive phases are favorable for reservoir development, and the sand body direction is parallel to the major source direction. The results can guide the following exploration for the Chang 9 reservoirs in Longdong area.

Key words: delta front, short-term base level cycle, sandstone reservoir, genesis analysis, Chang 8 oil reservoir set, Ordos Basin

［1］ 长庆油田石油地质志编写组．中国石油地质志（卷12）［M］．北京：石油工业出版社，1992．
［2］ 王欣欣，郑荣才，牛小兵，等．鄂尔多斯盆地陇东地区长9 油层组储层沉积学特征［J］.成都理工大学学报：自然科学版，2012，39（3）：277-284.
［3］ 王昌勇，郑荣才，田永强，等．陇东地区长9 油层组浅水三角洲沉积特征及成藏条件研究［J］.石油天然气学报（江汉石油学院学报），2011，33（8）：11-15.
［4］ 郑荣才，王昌勇，李虹，等．鄂尔多斯盆地白豹—华池地区长6油层组物源区分析［J］.岩性油气藏，2007，19（1）：32-38.
［5］ 王昌勇，郑荣才，王海红，等．鄂尔多斯盆地姬塬地区长6 油层组物源区分析［J］.沉积学报，2008，25（6）：933-938.
［6］ 王昌勇，郑荣才，李士祥，等．鄂尔多斯盆地早期构造演化与沉积响应———以姬塬地区长 8～长 6 油层组为例［J］.中国地质，2010，37（1）：134-143.
［7］ 牛小兵，梁晓伟，辛红刚，等．鄂尔多斯盆地陇东地区长9 油层组物源区分析［J］.岩性油气藏，2012，24（5）：71-75.
［8］ 卫平生，潘树新，王建功，等．湖岸线和岩性地层油气藏的关系研究———论“坳陷盆地湖岸线控油”（为《岩性油气藏》创刊而作）［J］.岩性油气藏，2007，19（1）：27-31.
［9］ 郑荣才，柳梅青．鄂尔多斯盆地长6 油层组古盐度研究［J］.石油与天然气地质，1999，20（1）：22-27.
［10］ 文华国，郑荣才，唐飞，等．鄂尔多斯盆地耿湾地区长6 段古盐度恢复与古环境分析［J］.矿物岩石，2008，28（1）：114-120.
［11］ Frederickson A F，Reynolds Jr R C. Geochemical method for determining paleosalinity ［J］. Clays and Clay Minerals，1959，8 （1）：203-213.
［12］ Couch E L. Calculation of paleosalinities from boron and clay mineral data［J］. AAPG Bulletin，1971，55（10）：1829-1837.
［13］ Adams T D，Hayens J R，Walker C T. Boron in Holocene illites of the Dovey estuary，Wales，and its relationship to paleosalinity in cyclothems［J］. Sedimentology，1965，4：189-195.
［14］ Cross T A. Controls on coal distribution in transgressive-regressive cycles，Upper Cretaceous，Western Interior，U.S.A. ［G］∥Wilgus C K. Sea-level changes：An integrated approach. Society of Economic Paleontologists and Mineralogists Special Publication 42，1988：371-380.
［15］ 郑荣才，彭军.陕北志丹三角洲长6 油层组高分辨率层序分析与等时对比［J］.沉积学报，2002，20（1）：92-100.
［16］ 邹才能，贾承造，赵文智，等．松辽盆地南部岩性-地层油气藏成藏动力和分布规律［J］.石油勘探与开发，2005，32（4）：125-130.
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