Reservoir characterization and modeling of lateral heterogeneity using multivariate analysis

	Reservoir characterization and modeling of lateral heterogeneity using multivariate analysis
	Rotimi, Oluwatosin J.1,2; Ako, Bankole D.3; Wang, Zhenli 2
刊名	ENERGY EXPLORATION & EXPLOITATION
	2014
卷号	32 期号:3 页码:527-552
关键词	Reservoir Simulation Lithofacies Porosity Heterogeneity Discontinuities Geostatistics
ISSN号	0144-5987
文献子类	Article
英文摘要	Reservoir characterization deals with the description of the reservoir in detail for rock and fluid properties within a zone of interest. The scope of this study is to model lateral continuity of lithofacies and characterize reservoir rock properties using geostatistical approach on multiple data sets obtained from a structural depression in the bight of Bohai basin, China. Analytical methods used include basic log analysis with normalization. Alternating deflections observed on spontaneous potential (SP) log and resistivity log served as the basis for delineating reservoir sand units and later tied to seismic data. Computation of variogram was done on the generated petrophysical logs prior to adopting suitable simulation algorithms for the data types. Sequential indicator simulation (SIS) was used for facies modeling while sequential gaussian simulation (SGS) was adopted for the continuous logs. The geomodel built with faults and stratigraphical attitude gave unique result for the depositional environment studied. Heterogeneity was observed within the zone both in the faulted and unfaulted area. Reservoir rock properties observed follows the interfingering pattern of rock units and is either truncated by structural discontinuities or naturally pinches out. Petrophysical property models successfully accounted for lithofacies distribution. Porosity volume computed against SP volume resulted in Net to gross volume while Impedance volume results gave credibility to the earlier defined locations of lithofacies (sand and shale) characterized by porosity and permeability. Use of multiple variables in modeling lithofacies and characterizing reservoir units for rock properties has been revisited with success using hydrocarbon exploration data. An integrated approach to subsurface lithological units and hydrocarbon potential assessment has been given priority using stochastic means of laterally populating rock column with properties. This method finds application in production assessment and predicting rock properties with scale disparity during hydrocarbon exploration.
WOS关键词	BASIN
WOS研究方向	Energy & Fuels
语种	英语
出版者	MULTI-SCIENCE PUBL CO LTD
WOS记录号	WOS:000336003500005
资助机构	TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship ; TWAS-CAS postgraduate research fellowship
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/85922]
专题	中国科学院地质与地球物理研究所
通讯作者	Rotimi, Oluwatosin J.
作者单位	1.Covenant Univ, Dept Petr Engn, Ota, Nigeria 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Beijing 100029, Peoples R China 3.Fed Univ Technol Akure, Dept Appl Geophys, Akure, Nigeria
推荐引用方式 GB/T 7714	Rotimi, Oluwatosin J.,Ako, Bankole D.,Wang, Zhenli. Reservoir characterization and modeling of lateral heterogeneity using multivariate analysis[J]. ENERGY EXPLORATION & EXPLOITATION,2014,32(3):527-552.
APA	Rotimi, Oluwatosin J.,Ako, Bankole D.,&Wang, Zhenli.(2014).Reservoir characterization and modeling of lateral heterogeneity using multivariate analysis.ENERGY EXPLORATION & EXPLOITATION,32(3),527-552.
MLA	Rotimi, Oluwatosin J.,et al."Reservoir characterization and modeling of lateral heterogeneity using multivariate analysis".ENERGY EXPLORATION & EXPLOITATION 32.3(2014):527-552.