Title

Research status and progress of the seismic rock-physics modeling methods

单位

(1.中国石油大学(华东)地球科学与技术学院,山东青岛266580;2.海洋国家实验室海洋矿产资源评价与探测技术功能实验室,山东青岛266071;3.国土资源部海洋油气资源与环境地质重点实验室,山东青岛266071;4.国土资源部青岛海洋地质研究所,山东青岛266071)

Organization

(1.School of Geosciences,China University of Petroleum,Qingdao 266580,China; 2.Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,China；3.The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology,Ministry of Land and Resources,Qingdao 266071,China; 4.Qingdao Institute of Marine Geology,Qingdao 266071,China)

摘要

岩石物理建模是地震岩石物理研究的重要内容之一。基于双相介质和等效介质理论,将地震岩石物理建模的理论框架分为岩石基质、岩石骨架、孔隙填充物和饱和岩石四部分,在该理论框架下对现有地震岩石物理建模基本理论及各理论模型的假设条件和适用范围进行了阐述;针对碎屑岩、碳酸盐岩、致密砂岩、页岩等不同类型储层岩石的矿物组分、微观孔隙结构及孔隙填充物性质等,在探讨岩石物理建模现状及难点的基础上,对目前较为适用的建模方法进行了论述。研究表明,在充分考虑储层微观特征、有效利用多种资料的基础上建立的地震岩石物理模型,可有效描述储层微观物性特征和宏观弹性性质之间的定量关系,为储层定量解释、流体识别等提供可靠的依据。

Abstract

Rock-physics modeling is one of the most important parts in seismic rock physics research.Based on the two-phase media theory and the effective media theory,the theoretical framework of rock-physics modeling consists of four parts:rock matrix,rock frame,pore-filling material and the saturated rock.We discuss the assumed conditions and applicability of each fundamental rock physical model.Considering the lithology,microscopic pore structure and properties of pore-filling material of different reservoir types,including clastic,carbonate,tight sand,shale and heavy oil saturated reservoirs,we investigate the current situation and difficulties in rock-physics modeling,mainly discuss the more suitable modeling methods.Fully considering the rock microscopic characteristics and effectively use various types of data,seismic rock-physics models can be used to calculate the quantitative relationship between reservoir microscopic physical parameters and macroscopic elastic parameters,provide reliable foundations for reservoir quantitative interpretation and fluid identification.

关键词：

岩石物理模型; 等效介质理论; 孔隙结构; 非均质储层; 弹性参数; Xu-White模型;

Keywords:

rock-physics model,; effective media theory,; pore structure,; heterogeneous reservoir,; elastic parameter,; Xu-White model;

基金项目

国家重点基础研究发展计划(973计划)课题(2013CB228604)、国家自然科学基金-石油化工基金联合重点项目(U1562215)共同资助。

DOI

10.3969/j.issn.1000-1441.2016.03.001

储层地震岩石物理建模研究现状与进展