摘要
构造成岩作用(structural diagenesis)是构造地质学与沉积学交叉融合形成的前沿研究领域,主要研究构造作用、构造和非构造成因的变形构造和变形效应与沉积物(岩)成岩变化之间的相互作用。变形构造及变形过程通过影响成岩流体流动对成岩作用非均质性产生重要影响;与变形构造相关的成岩作用研究则有助于揭示储层成岩演化、流体流动以及构造活动时期、期次及速率等重要信息。构造成岩作用提供了构造—成岩格架下探讨储层演化的新思路,在实际工作中应注意这一思路在储层成因与预测、致密化机制及沉积盆地动力学过程等研究方面的应用。碳酸盐岩变形条带相关研究起步较晚,相对较薄弱,未来应加强这方面的研究;同时亟待建立考虑碳酸盐岩在内的新的变形条带分类体系。目前,不同变形构造之间的研究程度不均衡,变形条带与裂缝几乎构成了构造成岩作用研究的主体;与软沉积物变形构造、砂岩脉等变形构造有关的构造成岩作用研究有待强化。变形构造空间分布预测及其对流体流动影响的研究要综合岩芯、露头及数值模拟等多种资料与方法。国内学者就中国中西部盆地深层系构造作用对储层演化的物理影响开展了研究,并取得了重要进展,构造作用对储层化学变化影响的相关研究已经起步;未来应重视运用构造成岩作用思路探究储层演化与分布的动力机制和过程,推进储层成岩动力学过程和沉积盆地动力学研究。
Structural diagenesis, which is a cross-discipline of structural geology and sedimentology, is a frontier research field; it mainly studies the interaction between the tectonic action and its deformation structure and effect and the diagenesis of the sediments （rock）. Deformation structures and processes have an important influence on the diagenesis heterogeneity through influencing the diagenetic fluid flow; the diagenesis research related to the deformation structure can provide people with diagenetic evolution, fluid flow, and period, stage and rate of structure development. Structural diagenesis provides a new idea for researching the reservoir evolution under the structure-diagenetic framework. It should be noted in practical work that this idea should be considered in research including genesis and prediction, densification mechanism of the reservoir, and evolution of sedimentary basins. The new classification system for deformation bands that include carbonates needs to be established urgently; the research related to deformation bands in carbonate rock started relatively late and is relatively weak. Therefore, research in this area should be strengthened in the future. The degree of research between different deformation structures is not balanced. Deformation bands and fractures constitute the main body of diagenesis research; diagenesis research related to deformation structures, such as soft sediment deformation structure and sandstone veins, needs further strengthening. The research concerning spatial distribution prediction of deformation structures and their influence on the fluid flow should be conducted by integration of various data and methods, such as cores, outcrops, and numerical simulations. Domestic scholars have carried out research on the impact of tectonic activity on physical changes of reservoirs in the Midwest Basin and made important progress; the influence of tectonism on reservoir chemical change has started. The dynamic mechanism and process of reservoir evolution and distribution should be explored by using structural diagenesis in the future in order to promote studies of reservoir diagenesis dynamics and sedimentary basin dynamics.
作者
袁静
俞国鼎
钟剑辉
董志芳
谢君
单康
YUAN Jing;YU GuoDing;ZHONG JianHui;DONG ZhiFang;XIE Jun;SHAN Kang(School of Geosciences,China University of Petroleum,Qingdao,Shandong 266580,China;Evalution and Detection Technology Laboratory of Marine Resources,Qingdao National Laboratory For Marine Science and Technology,Qingdao,Shandong,266071,China)
出处
《沉积学报》
CAS
CSCD
北大核心
2018年第6期1177-1189,共13页
Acta Sedimentologica Sinica
基金
中国石油科技创新基金项目(2016D-5007-0105)
山东省重大科技创新工程项目(2017CXGC1608)~~
关键词
构造成岩作用
变形条带
裂缝
成岩流体
储层
structural diagenesis
deformation bands
fracture
diagenetic fluid
reservoir
