蠡县斜坡沙三上亚段与沙一下亚段沉积特征及有利储层分布

doi:10.3969/j.issn.1673-8926.2016.05.011

Lithologic Reservoirs ›› 2016, Vol. 28 ›› Issue (5): 91-98.doi: 10.3969/j.issn.1673-8926.2016.05.011

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Sedimentary characteristics and favorable reservoir distribution of the upper submember of the third member and the lower submember of the first member of Shahejie Formation in Lixian Slope

Chen Ji ^1，2， Xu Fengqiang ²， Liu Chao ²， Cui Junfeng³， Pan Wenli ⁴， Xie Lianying ⁴

(1. Research Institute of Sinopec Exploration Company， Chengdu 610041， China； 2. College of Energy Resources， China University of Geosciences， Beijing 100083， China； 3. Langfang Branch， Research Institute of Petroleum Exploration and Development， PetroChina， Langfang 065007， Hebei， China； 4. Research Institute of Exploration and Development，PetroChina Huabei Oilfield Company， Renqiu 062552， Hebei， China）

Online:2016-09-29 Published:2016-09-29

Abstract

Abstract:

In recent years, fine exploration target of lithologic?stratigraphic reservoirs has been proposed for Lixian Slope, which needs to divide and re?understand the sedimentary facies more clearly. Through core and logging data, the sedimentary characteristics of the upper submember of the third member and the lower submember of the first member of Shahejie Formation were studied, and the distribution of favorable reservoir was determined. Braided channel facies and braided river flood plain facies are developed in the upper submember of the third member of Shahejie Formation, while braided river delta front subaqueous distributary channel and shallow?shore lake beach bar are developed in the lower submember of the first memeber of Shahejie Formation. Based on the distribution characteristic of favorable reservoirs, the sand bodies with reservoir properties from good to poor are as following: braided river delta front subaqueous distributary channel, braided river channel, shallow?shore lake beach bar, braided river delta front mouth bar. During the sedimentary period of the upper submember of the third member of Shahejie Formation, braided channel next to flood plain argillaceous source rocks are developed in Tongkou area and Xinqiao?Jiuchen area, and these areas are favorable for lithologic?stratigraphic reservoirs exploration. During the sedimentary period of the lower submember of the first member of Shahejie Formation, braided river delta front subaqueous distributary channel and shallow?shore lake beach bar are developed in Jiucheng?Xiliu areas, and these areas are favorable for looking for exploration potential area .

Key words: sequence division, sedimentary microfacies, sedimentary model, Yingshan Formation, Tahe area

Chen Ji， Xu Fengqiang， Liu Chao， Cui Junfeng， Pan Wenli， Xie Lianying. Sedimentary characteristics and favorable reservoir distribution of the upper submember of the third member and the lower submember of the first member of Shahejie Formation in Lixian Slope[J].Lithologic Reservoirs, 2016, 28(5): 91-98.

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