Calculating the primary porosity of unconsolidated sands based on packing texture: Application to braided river sands

doi:10.1016/j.marpetgeo.2019.05.033

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	Calculating the primary porosity of unconsolidated sands based on packing texture: Application to braided river sands
	Yan Yiming 1,2,3; Zhang, Liqiang 1,2,3; Luo, Xiaorong 4
刊名	MARINE AND PETROLEUM GEOLOGY
	2019-09-01
卷号	107 页码:515-526
关键词	Primary porosity Mathematical model Packing texture Grain size distribution Braided river sands Beach sands
ISSN号	0264-8172
DOI	10.1016/j.marpetgeo.2019.05.033
英文摘要	Primary porosity is an important parameter in studies of reservoir and porosity evolution. However, the applicable conditions for the few existing mathematical models of primary porosity have yet to be clarified. A mathematical model based on the packing texture was proposed by the authors in a previous study; however, the proposed model was only applicable to well-sorted and well-rounded modem beach sands. In this study, the model was modified and applied to poorly-sorted and poorly-rounded braided river sands. The applicable conditions for the proposed models and the previous empirical formula were investigated based on 41 modem braided river sand samples from the Kuqa River in the Tarim Basin and 40 modern beach sand samples from eastern China. Modern sands can be divided into three types based on the particle size distribution. Modified mathematical formulas were derived for each type of sands. The constant parameters in the mathematical model, such as the filling coefficients, embedment coefficients, and packing void ratios were obtained through experiments and through linear fitting. Based on the mathematical model, the errors between the measured and the calculated primary porosities ranged from - 3% to 3% for the modem braided sands and from - 2% to 2% for the modern beach sands. Using the empirical formula, the primary porosity errors in the modern braided river sands were large, and the formula could not be appropriately applied except to well-sorted and well-rounded modern beach sands. Compared with the modified mathematical model, the original mathematical model could not be applied well to braided river sands owing to the additional errors caused by e(f1). The modified mathematical model based on the packing texture was more credible when applied to poorly-sorted and angular braided river sands; further, it was applicable to all types of unconsolidated sands.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010202] ; National Science and Technology Major Project[2017ZX05008-004] ; Fundamental Research Funds for the Central Universities ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin
WOS关键词	RESERVOIR QUALITY PREDICTION ; GRAIN-SIZE ; PERMEABILITY ; DIAGENESIS ; FACIES ; BASIN ; MODEL
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000484871100035
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science and Technology Major Project ; National Science and Technology Major Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin ; Key technology and Theory of efficient Exploration and Development of Deep Oil andas in Tarim Basin
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93588]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Yan Yiming; Zhang, Liqiang
作者单位	1.China Univ Petr, Key Lab Deep Oil & Gas, Qingdao 266555, Shandong, Peoples R China 2.China Univ Petr, Sch Geosci, Qingdao 266555, Shandong, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Shandong, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Yan Yiming,Zhang, Liqiang,Luo, Xiaorong. Calculating the primary porosity of unconsolidated sands based on packing texture: Application to braided river sands[J]. MARINE AND PETROLEUM GEOLOGY,2019,107:515-526.
APA	Yan Yiming,Zhang, Liqiang,&Luo, Xiaorong.(2019).Calculating the primary porosity of unconsolidated sands based on packing texture: Application to braided river sands.MARINE AND PETROLEUM GEOLOGY,107,515-526.
MLA	Yan Yiming,et al."Calculating the primary porosity of unconsolidated sands based on packing texture: Application to braided river sands".MARINE AND PETROLEUM GEOLOGY 107(2019):515-526.