EIGHT MAJOR DEPOSITIONAL PROCESSES OF CLASTIC ROCKS AND THEIR PETROLEUM RESERVOIR CHARACTERIZATION
-
摘要: 无论是油气田的勘探还是开发都离不开对储层的综合评价、建模及预测.碎屑岩储层的研究,又离不开对沉积(微)相的分析,可以说都是在相控基础上的评价、建模及预测.尤其是在油气田的开发中,对老油田的挖潜和提高采收率,均涉及到影响剩余油的分布或(和)注入剂波及系数的储层非均质性.然而,造成所有这一切结果的根本因素是形成沉积砂体的成因机制——即沉积作用(或方式).在前人的基础上,系统分析并总结了形成碎屑岩储层的八大沉积作用:“垂、前、侧、漫、筛、选、填、浊”与其所形成砂体的沉积特征、储层特征、构形及地球物理响应关系,并对各自形成的地质条件进行了探讨,意在全面更好地表征它们的地质、地球物理及储层特征,为理解和研究碎屑岩储层的非均质性及剩余油的分布等提供成因机制分析的依据.Abstract: Comprehensive evaluation, modeling and prediction of petroleum reservoir are always concerned in the oil-and-gas field exploration and development. Moreover, study of reservoir characteristics is related to analysis of depositional facies or microfacies. It revolves occurrence of residual petroleum and sweep efficiency or conformance factor of injectant to find new reservoirs and enhance oil recovery during the stage of reservoir management and development in maturing oil fields, and this is related to the study on reservoirs heterogeneity. The fundamental reason of all these results is the mechanisms forming depositional sandbody-depositional processes. The relationship between depositional process and response of reservoir heterogeneity is for the geologists and petroleum engineers to resolve. Based on the previous research, 8 major depositional processes (vertical accretion, progradation, lateral accretion, overbank accretion, sieve accretion, winnowing accretion, channel filling, and turbidity deposition) have been defined and the sedimentary features, reservoir characteristics, architecture, log and seismic responsibility of the sediments formed mainly by these depositional processes have been described in detail, in order to get a better understanding of reservoir heterogeneity and occurrences of residual petroleum on clastic rocks and to provide basis for analyzing genetic mechanism.
-
[1] 裘怿楠,许仕策,肖敬修.沉积方式与碎屑岩储层的层内非均质性[J].石油勘探与开发,1985,12(2):72~74 [2] 裘怿楠.储层沉积学研究工作流程[J].石油勘探与开发,1990,17(1):85~90 [3] 于兴河,李剑峰.油气储层研究所面临的挑战与新动向[J].地学前缘,1995,2(3~4):213~219 [4] 郑浚茂,于兴河,谢承强等.不同沉积环境储层的层内非均质性[J].现代地质,1995,9(4):501~508 [5] 于兴河.地学研究的思维方法、过程、特点及目标[J].学位与研究生教育,1998,80(3):17~19 [6] Miall A D.Reservoir heterogeneities in fluvial sandstones: lessons from outcrop studies[J]. AAPG Bulletin,1988,72(6):682~697 [7] 于兴河,王德发,郑浚茂.华北地区二叠系岩相组合类型、剖面特点及沉积体系[J].沉积学报,1992,10(1):27~35 [8] 于兴河,王德发,郑浚茂等.辫状河三角洲砂体的特征及砂体展布模型[J].石油学报,1994,15(1):26 ~37 [9] 于兴河,王德发.陆相断陷盆地三角洲的构形要素及其储层地质模型[J].地质论评,1997,43(3):225~231 [10] Lake L W,Carroll H B Jr.Reservoir Characterization[M].Orlando:Academic Press,1986.1~5 [11] Fairbridge R W, Bourgeois J. The Encyclopedia of Sedimento-logy[M]. Stroudsberg, P A:Dowden, Hutchinson and Ross, 1978.430~432 [12] Galloway W E, Hobday D K. Terrigenous Clastic Depositional Systems[M]. New York: Springer-Verlag,1983 [13] Maill A D. Architecture-element analysis: a new method of facies analysis applied to fluvial deposits[A]. In: Flores R M, ed. Recognition of Fluvial Depositional System and Their Resource Potential: Lecture Notes for Short Course No.19[M]. Tulsa: SEPM,1985.35~81 [14] Bouma A H. Sedimentology of Some Flysch Deposits[M]. Amsterdam: Elsevier Pub,1962.168 [15] 中国社会科学院语言研究所词典编辑室编.现代汉语词典[M].第2版.北京:商务印书馆,1983.427 -
计量
- 文章访问数: 670
- HTML全文浏览量: 60
- PDF下载量: 380
- 被引次数: 0