Research of Sequence Stratigraphic Models of Jiufotang Formation, Lower Cretaceous, the Luxi Sag, the Kailu Basin

2011 ◽  
Vol 356-360 ◽  
pp. 2941-2949
Author(s):  
Yang Li ◽  
Qing Bin Xie ◽  
Xiao Min Zhu ◽  
Fen Liu
Keyword(s):  
Seismic Data ◽  
Lower Cretaceous ◽  
Sedimentary Facies ◽  
River Delta ◽  
Braided River ◽  
Sequence Stratigraphic ◽  
Meandering River ◽  
River Deltas ◽  
Lacustrine Facies ◽  
Order Sequence

With comprehensive utilization of drilling, logging and seismic data, research was conducted on the sequence stratigraphic models of Jiufotang Formation, Lower Cretaceous in the Luxi Sag, Kailu Basin. It was revealed that Jiufotang Formation could be divided into one three-order sequence, which including lowstand systems tract (LST), transgressive systems tract (TST), highstand systems tract (HST) and regressive systems tract (RST). Within the sequence, it developed five types of sedimentary facies, which were nearshore subaqueous fan, braided river delta, meandering river fan, turbidite fan and lacustrine facies, respectively. The LST mainly developed nearshore subaqueous fan, the TST mainly developed meandering river deltas while the HST and RST mainly developed meandering river delta, braided river delta and nearshore subaqueous fan. In addition, turbidite fan developed in all four systems tracts. Two types of sequence stratigraphic models developed: short-axis model and long-axis model.

The Types of Sedimentary Facies and Rock Characteristics of Xujiaweizi Fault Depression in Songliao Basin

2013 ◽  
Vol 787 ◽  
pp. 717-720
Author(s):  
Cheng Zhi Liu ◽  
Xue Du ◽  
Xiao Zhou ◽  
Bo Li ◽  
Xi Liu
Keyword(s):  
Main Type ◽  
Sedimentary Facies ◽  
Songliao Basin ◽  
River Delta ◽  
Braided River ◽  
Delta Front ◽  
Braided Channel ◽  
Fan Delta ◽  
Sedimentary System ◽  
Lacustrine Facies

In the Shahezi Formation of Xujiaweizi fault depression in the Songliao Basin mainly tow sedimentary system is developed: the Xudong gentle slope belt and Xuxi fault zone systems. However, this area is little studied as there have been only limited efforts in exploration. Based on the latest drilling, outcrop data, description of core observation and laboratory microscope identification, it has been concluded that four mainly sedimentary facies are developed in this area: braided river delta, fan delta, lacustrine facies and sublacustrine fan. The subaqueous distribute channel is the main type of the fan delta front while the braided channel is the main type of the braided river delta. A number of clastic, sandstone and mudstone are developed in these two types of sedimentary facies. We can use it to make further study of dividing into micro-facies.

Sequence Stratigraphic Analysis of Badaowan Formation in Dishuiquan Area, Junggar Basin

2012 ◽  
Vol 616-618 ◽  
pp. 56-59 ◽  
Author(s):  
Zhe Wang ◽  
Zhen Kui Jin ◽  
Gui Zai Li
Keyword(s):  
Lacustrine Sediments ◽  
Junggar Basin ◽  
Sedimentary Facies ◽  
River Delta ◽  
Braided River ◽  
Transgressive System Tract ◽  
Sequence Stratigraphic ◽  
Sedimentary Microfacies ◽  
System Tracts ◽  
System Tract

In the light of the principle and method of sequence stratigraphy, the sequence stratigraphic framework of Badaowan formation in the Dishuiquan area was established. The results show that the sequence of Badaowan formation is one and half, including 5 system tracts. The whole experiences the process of retrogradation, progradation and then retrogradation again. There develop three types of sedimentary facies such as braided river, braided river delta and lakes, five types of sedimentary subfacies and 10 types of sedimentary microfacies. Most of JSQ1 sequence lowstand system tract is braided rivers, the lacustrine transgressive system tract mainly develops shore-shallow lacustrine sediment and most of highstand system tract is braided river delta; lowstand systems tract of JSQ2 sequence mainly develops braided river delta, most of the lacustrine transgressive system tract is shore-shallow lacustrine sediments.

Permo-Carboniferous Sedimentary Facies Analysis in Northeast Jizhong Depression

2014 ◽  
Vol 962-965 ◽  
pp. 160-163
Author(s):  
Si Si Cai ◽  
Wen Hui Huang ◽  
Meng Gong ◽  
De Yu Yan
Keyword(s):  
Carbonate Rock ◽  
Oil And Gas ◽  
Facies Analysis ◽  
Sedimentary Facies ◽  
Deposition Condition ◽  
Braided River ◽  
Meandering River ◽  
Seal Oil ◽  
Jizhong Depression ◽  
Benxi Formation

This document studies the deposition condition in northeast Jizhong depression by using relevant data of cores, logging and scanning electron microscope. The result indicates that the study area has 7 kinds of lithofacies, including conglomerate, sandstone, siltstone, mudstone, bauxite, carbonate rock and coal seam . Bottom-up development in the study area cover tidal flat, lagoon, delta, meandering river and braided river, a total of five kinds of sedimentary facies. Benxi Formation, Taiyuan Formation and Shanxi Formation deposited in transitional facies, which has high generation potential of Hydrocarbon. Lower and upper Shihezi Formation is mainly a set of river deposition as a good reservoir. The top of upper Shihezi Formation and Shiqianfen Formation are mainly mudstone, which is conducive to seal oil and gas.

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