Stratigraphic Sequence Framework of Zao IV Group in Zaobei Oilfield

2013 ◽  
Vol 652-654 ◽  
pp. 2520-2523
Author(s):  
Ying Hua Yu ◽  
Dan Dan Yuan ◽  
Xiang Li Zhong
Keyword(s):  
High Resolution ◽  
Large Scale ◽  
Stratigraphic Correlation ◽  
Data Logging ◽  
Reservoir Prediction ◽  
Stratigraphic Sequence ◽  
Core Data ◽  
Base Level ◽  
Single Well ◽  
High Resolution Sequence Stratigraphy

The geological structures of Zaobei area are broken seriously, because of the whole region was divided many blocks by many faults, which could bring huge difficulty to stratigraphic correlation. The high resolution sequence stratigraphy on Zao IV group in Zaobei oilfield was studied by using core data, logging and 3D seismic data. Features of sequence boundary in all available data were identified, and the characteristics of different levels of cycles were analyzed. Zao IV group in target zone was divided into one long-term base-level cycles, seven mid-term base-level cycles and twenty one short-term base-level cycles Based on the integrated research of core data description in single well logging data Correlation in wells and large scale horizontal Correlation Constrained by 3D scismic data, the high resolution sequence frame of Zao IV group is established, it provides important basis for future reservoir prediction and description.

High Resolution Sequence Stratigraphic Frameworks Research in the XII Group of the Member III of Qing Shankou Formation in the Qian'an Oilfield

2013 ◽  
Vol 339 ◽  
pp. 728-731 ◽  
Author(s):  
Cun Lei Li ◽  
Lei Qin ◽  
Xue Li ◽  
Xi Long Zhang
Keyword(s):  
High Resolution ◽  
Stratigraphic Correlation ◽  
Short Term ◽  
Middle Term ◽  
Sequence Stratigraphic ◽  
Base Level ◽  
Mud Logging ◽  
High Resolution Sequence Stratigraphy ◽  
Symmetric Structures

With the instruction of the high resolution sequence stratigraphy and sedimentology theory, and the comprehensive application of 11 wells core, more than 800 mud logging and log data, high resolution sequence stratigraphic characteristics research in the XII Group of the Member III of Qing Shankou Formation in the Qianan oilfield has been finished. The results show that the study area can be divided into one middle-term base level cycle and five short-term base level cycles. The only sequence structure of middle term cycle is (B type) and the short term cycle mainly consists of B types meanwhile there are small mounts of upward deepening structures (A type) and symmetric structures (C type). Based on the classification of base-level cycles, fine stratigraphic correlation is conducted by using isochronous cycle correlations. In addition, 15 high resolution sequence stratigraphic frameworks are established which unify the study area and provide the solid geological basis for the sandstone distribution, the identification of mainly oil-bearing sand bodies and potential oil reservoirs.

High Resolution Sequence Stratigraphic Study of Single Sand Body in the Complex Reservoir in High Water-Cut Period: Take the Member I of Qing Shankou Formation of Hei 96 Block of Songliao Basin for Example

2013 ◽  
Vol 339 ◽  
pp. 732-736
Author(s):  
Lei Qin ◽  
Cun Lei Li ◽  
Yan Li ◽  
Jing Zhe Li
Keyword(s):  
High Resolution ◽  
High Water ◽  
Stratigraphic Correlation ◽  
Short Term ◽  
Sequence Stratigraphic ◽  
Base Level ◽  
Control Functions ◽  
High Water Cut ◽  
Water Cut ◽  
High Resolution Sequence Stratigraphy

With the method of the high resolution sequence stratigraphy and sedimentology theory, oil-bearing sand bodies have been accurately recognized and descripted which could provide precisely geological data for 3-D modeling and numerical simulation. It has the vital significance for the development of oilfield during the late stage of high water cut. According to the drilling, logging, seismic and analytical experiments data, the results show that the study area can be divided into one long-term base level cycle, four middle-term base level cycles, sixteen short-term base level cycles and twenty-eight super short-term base level cycles. Based on the classification of base-level cycles, control functions of cycles which have effects on the sediment environment have been discussed. And with the application of the chronostratigraphic correlation fine stratigraphic correlation, 10 high resolution sequence stratigraphic frameworks are established in the direction that is parallel and perpendicular to the source.

scholarly journals Reservoir prediction of shallow braided delta front by Comprehensive Prediction Error Filtering Analysis

2021 ◽  
Vol 245 ◽  
pp. 01029
Author(s):  
Wenjuan Li
Keyword(s):  
High Resolution ◽  
Sequence Stratigraphy ◽  
Prediction Error ◽  
Oil Field ◽  
Delta Front ◽  
Reservoir Prediction ◽  
Base Level ◽  
High Resolution Sequence Stratigraphy ◽  
Fifth Order ◽  
Filter Analysis

For a more accurate reservoir prediction of braided delta front, the method of High Resolution Sequence Stratigraphy was adopted in Moxizhuang Oil Field with the assistance of Comprehensive Prediction Error Filter Analysis. J1s2 was divided into 2 fifth-order base-level cycles, 5 sixth-order base-level cycles, with the turnaround surfaces of base-level rise to fall, and time-equal correlation of shallow braided delta front was achieved. Through study of microfacies correlation in High Resolution Sequence Stratigraphy frame, it is apparent that base-level cycles control microfacies distribution, and furthermore reservoir distribution: reservoirs around turnaround surface of base-level falling to rising are thick and laterally connected, while reservoirs near the middle of base-level falling and base-level rising are relatively thinner and less laterally connected, and reservoirs close to the beginning of base-level falling and the end of base-level rising are undeveloped.

scholarly journals Sedimentary Facies of the Chang 2 Member of Yanchang Formation in Area A of Northern Shaanxi

2021 ◽  
Vol 290 ◽  
pp. 02012
Author(s):  
Yingzhi Liu ◽  
Yanyan Liu ◽  
Ying Chen ◽  
Shasha Yang ◽  
Bowang Wang
Keyword(s):  
Sedimentary Facies ◽  
Stratigraphic Correlation ◽  
Sequence Stratigraphic ◽  
Delta Plain ◽  
Base Level ◽  
Sand Body ◽  
Single Well ◽  
Northern Shaanxi ◽  
Core Description ◽  
Sand Bodies

In order to promote the rolling exploration and development of oil reservoirs in northern Shaanxi, a fine study of sedimentary facies in area A has been carried out. Using core and logging data, on the basis of identifying different levels of sequence interfaces and lake flooding, the Chang 2 Member in Area A was divided into two base level cycles, and a high-resolution sequence stratigraphic correlation was established. On the basis of core description, the analysis of single-well sedimentary facies, continuous-well sedimentary facies and planar sedimentary facies are carried out. It is believed that the Chang 2 member of the study area is a delta plain deposit, dominated by distributary channels, inter-distributary depressions, and natural dike microfacies. There are two to three main rivers in the study area. Both the vertical and the plane show that the length of Chang 22 sand bodies is more developed than the length of Chang 21 sand bodies. Among the three small layers of Chang 22, Chang 221 sand body is relatively well developed, and the channel width and thickness are large, making it the most favorable reservoir.

scholarly journals Application of high-resolution sequence stratigraphy in improving the precision of reservoir prediction

2009 ◽  
Vol 36 (4) ◽  
pp. 448-455 ◽  
Author(s):  
Li Jinsong ◽  
Zheng Xiaodong ◽  
Gao Zhiyong ◽  
Li Yonggen ◽  
Liu Ying ◽  
...  
Keyword(s):  
High Resolution ◽  
Sequence Stratigraphy ◽  
Reservoir Prediction ◽  
High Resolution Sequence Stratigraphy

scholarly journals Supplemental Material: Has Earth ever been ice-free? Implications for glacio-eustasy in the Cretaceous greenhouse age using high-resolution sequence stratigraphy

2020 ◽  
Author(s):  
Wen Lin
Keyword(s):  
High Resolution ◽  
Sequence Stratigraphy ◽  
Cross Section ◽  
Location Information ◽  
Stratigraphic Correlation ◽  
Sequence Stratigraphic ◽  
High Resolution Sequence Stratigraphy

Table S1 includes location information of measured sections and the supplemental Figure S1 includes detailed sequence stratigraphic correlation cross-section tied with measured sections.

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