Three-Dimensional Sedimentary Microfacies Modeling in Chunguang Oilfield - A Case of P2 Block

2013 ◽  
Vol 718-720 ◽  
pp. 377-382
Author(s):  
Chen Qiang Dong ◽  
Xue Li
Keyword(s):  
Spatial Distribution ◽  
Oil And Gas ◽  
Three Dimensional ◽  
Sedimentary Facies ◽  
Modeling Method ◽  
Reservoir Modeling ◽  
Gas Recovery ◽  
Indicator Simulation ◽  
Sedimentary Microfacies ◽  
Reasonable Choice

Reservoir microfacies is an important factor affecting the reservoir heterogeneity, and it is significant to accurately predict reservoir microfacies distribution in order to improve oil and gas recovery. The stochastic reservoir modeling method has a strong geological suitability. The reasonable choice of the stochastic modeling method can effectively improve the accuracy of modeling. During the sedimentary facies modeling, sequence indicator simulation is used to characterize the spatial distribution of different microfacies with different variogram,to reproduce the complex microfacies spatial distribution.

Detailization of the Facial Conditions for Sedimentation of the 〖Yu〗_1^2 Productive Layer with the Purpose of Specificating Features of the Geological Structure

2018 ◽  
Vol 9 (5) ◽  
pp. 932
Author(s):  
SorinVadim M. ALEKSANDROV ◽  
Alexander V. MOROZOV ◽  
Ivan P. POPOV ◽  
Rushania G. LEBEDEVA ◽  
Irina A. BULGAKOVA
Keyword(s):  
Oil And Gas ◽  
Three Dimensional ◽  
Sedimentary Facies ◽  
Geological Structure ◽  
Well Test ◽  
Southeastern Part ◽  
Facial Analysis ◽  
Marine Sedimentation ◽  
Coastal Marine ◽  
Adopted Model

The detailed characterization of the environmental conditions of sedimentation of the  productive formation makes it possible to refine the features of the geological structure. The authors carried out a detailed lithologic-facial analysis of the deposits of the Yu12 productive formation at one of the deposits located in the southeastern part of the West Siberian oil and gas basin. Detailed lithologic-facial schemes were constructed that reflect the spatial distribution of the main permeable bodies, considering the forecast of the distribution of promising reservoir rocks in zones not covered by drilling. The well test results confirm the adopted model of sedimentary facies distribution over the area of the deposit. The proposed conceptual model was used to construct a three-dimensional facial model of the deposit. Thus, a detailed lithologic-facial analysis of the core and forms of the GIS curves showed that deposits of the  stack accumulated in coastal-marine sedimentation environments – "marshes" and "watts", repeatedly replacing each other vertically.

scholarly journals Fine description of sedimentary system in Wuerxun Sag of Hailaer Basin

2020 ◽  
Vol 194 ◽  
pp. 05048
Author(s):  
ZHOU Yue ◽  
GAO Geng ◽  
WANG Duanyang ◽  
YANG Xu
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Sedimentary Facies ◽  
Key Factors ◽  
Oil And Gas Exploration ◽  
Fan Delta ◽  
Sedimentary System ◽  
Sedimentary Microfacies ◽  
Surrounding Areas ◽  
Sand Bodies

Wuerxun depression is one of the depressions with great exploration potential in Hailaer Basin and has submitted large-scale reserves. At present, it has entered the stage of fine exploration, and the exploration object has changed from structural reservoir to lithologic reservoir exploration. The remaining targets are mainly concentrated in the trough and surrounding areas, with strong concealment and difficult to identify. Fine identification of sand bodies, genesis, types and distribution of sedimentary fans are one of the key factors restricting oil and gas exploration. Based on core observation and genetic mechanism, three sedimentary facies models of Braided River Delta, fan delta and sublacustrine fan are established. In this paper, the method of “sequence control, cycle correlation and hierarchical closure” is used to fine characterize the fan delta sedimentary system in this area, which lays a foundation for the study of sedimentary microfacies of subdivision layers, optimization of lithologic reservoir targets and guidance of oil and gas exploration deployment.

scholarly journals Three-Dimensional Facies Analysis using Object-Based Geobody Modeling: A Case Study for the Farewell Formation, Maui Gas Field, Taranaki Basin, New Zealand

2018 ◽  
Author(s):  
AKM Eahsanul Haque ◽  
Md. Aminul Islam ◽  
Mohamed Ragab Shalaby
Keyword(s):  
Spatial Distribution ◽  
Three Dimensional ◽  
Normal Fault ◽  
Gas Field ◽  
Meandering Channel ◽  
Object Based ◽  
Indicator Simulation ◽  
Potential Reservoir ◽  
Random Manner ◽  
Farewell Formation

The early-mid Paleocene Farewell Formation is stratigraphically distributed across the southern Taranaki Basin (STB) which is also encountered within the Maui Gas Field. Using available 3D seismic and well log data, a challenging task to delineate the spatial distribution and geobody patterns of the potential reservoir sands of the formation was performed. Object based modeling coupled with sequential indicator simulation were used to analyze the spatial distribution of facies configuration and a conceptual model was developed based on the outputs from the structurally- modeled grids. The facies modeling followed a hierarchical object-based mechanism which was set to perform with constraints like channel geometry and heterogeneity within the formation. The resultant 3D geobody model showed that the distributary channels, mainly braided geobodies flowed from northeast cutting through several regional normal-fault systems to the southwest. Overbank facies was adhered to the fringe of the channels whereas the floodplain facies was at the periphery of the model. Meandering channel-sand facies were mostly observed at the center of the model flowing in a more random manner, occupying major flow directions of northwest to southwest and southeast to northwest within the model.

Application of Multiple-Point Geostatistics in Sedimentary Facies Modeling

2014 ◽  
Vol 962-965 ◽  
pp. 108-111
Author(s):  
Hong Dong Li ◽  
Xiao Ling Hu ◽  
Shao Hua Li
Keyword(s):  
Sedimentary Facies ◽  
Training Image ◽  
Oil Field ◽  
Space Distribution ◽  
Reservoir Modeling ◽  
Multiple Point ◽  
Distribution Law ◽  
Facies Model ◽  
Sand Body ◽  
Sedimentary Microfacies

Compared with 2-point variogram-based geostatistics, multiple-points geostatistics is able to delineate reservoirs of complex spatial architecture or geometries more accurately. Multiple-point geostatistics stochastic simulation is introduced to apply on delta reservoir modeling by taking 2Sa block in a certain oil field at BeiBuWan basin for example. At first, the training image of 2Sa block deposited in delta frontier of study area is established by digitizing sedimentary facies and then facies model of 2Sa block is created with the method of multiple-point geostatistics. The result indicates that facies model simulate the sedimentary microfacies space distribution as well as distribution law of sandbodies, which provides a guiding significance for predicting the distribution of effective sand-body in the study area.

scholarly journals 3D Reservoir Modeling of Triassic Yanchang Formation Chang 812 Layer in Honghe36 well area, Ordos Basin, China

2017 ◽  
Vol 10 (1) ◽  
pp. 239-250 ◽  
Author(s):  
Congjun Feng ◽  
Mengsi Sun ◽  
Renhai Pu ◽  
Min Zhang ◽  
Daming Li
Keyword(s):  
Prediction Model ◽  
Ordos Basin ◽  
Three Dimensional ◽  
Simulation Method ◽  
Reservoir Modeling ◽  
Yanchang Formation ◽  
Oil Saturation ◽  
Delta Plain ◽  
Sand Body ◽  
Sedimentary Microfacies

Background: Three-dimensional geological modeling of reservoirs is not only the key factor for reservoir description and prediction of oil reserves but also an important means of quantitative characterization of reservoir geometry and heterogeneity in three dimensional spaces. The aim of this paper is to establish prediction model for sandstone classification and reservoir petrophysical properties. Methods: Sand body prediction model was built by using stochastic simulation of discrete variables. Gauss model and sequential Gauss simulation method were selected to build porosity, permeability and oil saturation models. Results: The Chang 812 layer includes three sedimentary microfacies: distributary channel, inter-distributary bay and swamp. The dominant thickness of Chang 812 layer ranges from 15 to 20m. Three other classes of thickness (5-10 m, 10-15 m and 0-5 m) are subsequently less present. The major porosity of Chang 812 layer ranges from 5 to 15%, the major permeability ranges from 0.1 to 2×10-3μm2 and the major oil saturation ranges from 55 to 70%. Conclusion: The Chang 812 layer of Triassic Yanchang Formation mainly formed in braided delta plain depositional environment. The truncated Gauss simulation of sand body was applied in simulation. The thickness of the sand body is relatively greater than the porosity, permeability and oil saturation values.

scholarly journals Depositional environment of E Oligocene sedimentary and prediction of sand distribution in Southeast area, Cuu Long basin

2020 ◽  
Vol 4 (2) ◽  
pp. First
Author(s):  
Tran Van Xuan ◽  
Nguyen Dinh Chuc ◽  
Nguyen Tuan ◽  
Truong Quoc Thanh ◽  
Pham Viet Au
Keyword(s):  
Depositional Environment ◽  
Oil And Gas ◽  
Sedimentary Facies ◽  
Effective Porosity ◽  
Reservoir Modeling ◽  
Large Area ◽  
Seismic Line ◽  
Gas Industry ◽  
Petroleum Systems ◽  
Gas Potential

According to petrophysical and geophysical data, the depositional facies of E Oligocene are determined. Furthermore, the correlation lines between wells and the seismic line also created for confirming Oligocene E distribution in Cuu Long basin. Using appropriate methods such as petrophysical curves, geophysical characteristics, interpretation of gross depositional environment as well as mapping of seismic attributes for sub-sequence Oligocene E upper and E lower in Southeast area, results of prediction the sand distribution in Oligocene E upper and E lower sub-sequence, factors effect to porosity-permeability preservation of E sand reservoirs in Southeast area, Cuu Long basin and oil-gas industry flow-producing possibility in varied sedimentary facies were reported in this paper. The E Oligocene sedimentary distributes in a large area with hydrocarbon accumulations along the Southeast margin Cuu Long basin in relation with the existence of half-grabens along Con Son swell, in which formation rocks consist of varying grain size, mainly sandstone interbeds by siltstone and shale stone. A bitum shale layer of 20÷70 m thickness exits to play the role of a shield to maintain a much higher effective porosity of the reservoir section than usual (up to 18%). In the area, there are two sandstone reservoirs of excellent quality at 2,600÷2,700 mMD and 3,000÷3,400 mMD depths. In order to determine the oil and gas potential of the target, petroleum systems in exploration activities must carefully be evaluated, especially looking for stratigraphic traps, and the reservoir modeling should be modified accurately.

scholarly journals Investigations of polyethylene of raised temperature resistance service performance using autoclave test under sour medium conditions

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 346-354
Author(s):  
Guoquan Qi ◽  
Hongxia Yan ◽  
Dongtao Qi ◽  
Houbu Li ◽  
Lushi Kong ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Mechanical Performance ◽  
Three Dimensional ◽  
Service Performance ◽  
Degree Of Branching ◽  
Temperature Resistance ◽  
Temperature Conditions ◽  
Dimensional Network ◽  
Gas Medium ◽  
Better Than

Abstract The chapter deals with the performance evaluation of the polyethylene of raised temperature resistance (PE-RT) and polyethylene (PE) using autoclave test under sour oil and gas medium conditions. The analyses of performance changes showed that PE-RT has good media resistance at 60°C. As the temperature increases, its mechanical properties decrease, accompanied by an increase in weight. Comparative analyses showed that no matter what temperature conditions are, PE-RT media resistance is better than PE80. The better media resistance of PE-RT depends on its higher degree of branching. Short branches are distributed between the crystals to form a connection between the crystals, thereby improving its heat resistance and stress under high-temperature conditions. PE-RT forms an excellent three-dimensional network structure through copolymerization, ensuring that it has better media resistance than PE80. However, the mechanical performance will be attenuated due to the high service temperature.

scholarly journals New Glycerol Upgrading Processes

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 103
Author(s):  
Miguel Ladero
Keyword(s):  
Renewable Energy ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Oil And Gas ◽  
The Other ◽  
Energy Policies ◽  
Gas Recovery ◽  
The Us ◽  
The Eu

Energy policies in the US and in the EU during the last decades have been focused on enhanced oil and gas recovery, including the so-called tertiary extraction or enhanced oil recovery (EOR), on one hand, and the development and implementation of renewable energy vectors, on the other, including biofuels as bioethanol (mainly in US and Brazil) and biodiesel (mainly in the EU) [...]

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