CAJ | 학술논문

与常规储层不同,碳酸盐岩溶洞型储层是一种由古岩溶作用形成的特殊储层,其发育特征复杂,非均质性极强,碎屑岩储层建模中较为成熟的方法并不适用于该类储层.本文在分析现有研究成果的基础上,以塔河油田为例,讨论了溶洞型储集体建模中的几个关键问题:以溶洞型储集体成因特征为前提实现地质约束,考虑建模软硬数据的相对性,进行多类多尺度数据整合以及较完善的溶洞型储集体形态模拟方法;对溶洞型储集体建模研究中亟待发展的问题进行了展望,指出表征溶洞型储集体复杂形态、配置关系及内部充填特征是下一步的研究方向;认为多点地质统计学方法在表征溶洞型储集体复杂形态方面是可行的,根据溶洞型储集体充填程度及充填物类型进行属性表征有利于建立更准确的地质模型.
여상규저층불동,탄산염암용동형저층시일충유고암용작용형성적특수저층,기발육특정복잡,비균질성겁강,쇄설암저층건모중교위성숙적방법병불괄용우해류저층.본문재분석현유연구성과적기출상,이탑하유전위례,토론료용동형저집체건모중적궤개관건문제:이용동형저집체성인특정위전제실현지질약속,고필건모연경수거적상대성,진행다류다척도수거정합이급교완선적용동형저집체형태모의방법;대용동형저집체건모연구중극대발전적문제진행료전망,지출표정용동형저집체복잡형태、배치관계급내부충전특정시하일보적연구방향;인위다점지질통계학방법재표정용동형저집체복잡형태방면시가행적,근거용동형저집체충전정도급충전물류형진행속성표정유리우건립경준학적지질모형.
Paleokarst cave carbonate reservoir is a kind of special reservoir formed by karstification, and it possesses complex development characteristic and extremely strong heterogeneity. So the conventional modeling method of clastic reservoir can not be applicable to paleokarst carbonate reservoir. Based on the analysis of state-of-art research, taking the Tahe oilfield as an example, several key issues of paleokarst cave reservoir modeling are discussed, including the causes of reservoir, making use of soft and hard data for modeling, an improved modeling method by considering vertical zoning of karst, planar partition of paleogeomorphology and karst facies. Several problems needed to be improved are discussed as well, including mathematical algorithms and characterization of reservoir petrophysical property. We suggest that the characterization of complex shape, assembly relations and internal filling characteristic would be topics for future research. The application of multiple point geostatistics is feasible. Petrophysical property characterization according to reservoir filling degree and the fillings type is helpful to build more accurate geological model.