CAJ | 학술논문

前人在塔里木盆地寒武纪地层、岩相及碳酸盐岩台地类型等方面做过大量研究，并取得了众多进展。由于寒武系埋藏深度大，钻穿且揭示较完整寒武纪地层的深部钻井数量不超过10口，且这些井在整个盆地稀疏分布，加上三维地震资料数量、覆盖面积和品质的限制，一直以来限制了前人在塔里木盆地寒武系礁滩体发育特征、礁滩体分布规律和有利储层发育位置等方面研究。以轮南低凸起中部轮深地区为对象，在前人研究的基础上对已钻井及区域地层重新进行了对比分析，认为轮深地区寒武系碳酸盐岩储层与层序地层关系密切，地层存在典型的台地边缘相进积型层序地层特征。在层序地层框架约束范围内，结合地震相分析，精细刻画了寒武系不同时期碳酸盐岩台地区、台缘区和盆地区沉积地层特征，明确了台缘礁滩体发育特征、分布规律以及有利储层发育位置。该工作对认识塔里木盆地深层台缘礁滩体储层特征、优选轮深地区深层风险目标具有重要的意义。
전인재탑리목분지한무기지층、암상급탄산염암태지류형등방면주과대량연구，병취득료음다진전。유우한무계매장심도대，찬천차게시교완정한무기지층적심부찬정수량불초과10구，차저사정재정개분지희소분포，가상삼유지진자료수량、복개면적화품질적한제，일직이래한제료전인재탑리목분지한무계초탄체발육특정、초탄체분포규률화유리저층발육위치등방면연구。이륜남저철기중부륜심지구위대상，재전인연구적기출상대이찬정급구역지층중신진행료대비분석，인위륜심지구한무계탄산염암저층여층서지층관계밀절，지층존재전형적태지변연상진적형층서지층특정。재층서지층광가약속범위내，결합지진상분석，정세각화료한무계불동시기탄산염암태지구、태연구화분지구침적지층특정，명학료태연초탄체발육특정、분포규률이급유리저층발육위치。해공작대인식탑리목분지심층태연초탄체저층특정、우선륜심지구심층풍험목표구유중요적의의。
An extensive research has been performed on the lithofacies and carbonate platform types of the Cambrian in the Tarim Basin during the past decades.However,studies on the development characteristics,distribution patterns and high-quality reservoirs of the reef-flat facies are rarely documented because of the deep burial of the Cambrian,the sparse and limited exploratory wells that penetrate and reveal a relatively whole Cambrian as well as the limited quantity,cove-rage and quality of seismic data.Lunshen area located in the center of Lun Nan low salient ais taken as an example to analyze the drilling data and regional stratigraphy based on the previous study.It reveals that the Cambrian carbonate reservoirs have close relationship with sequence stratigraphy which has typical progradation characteristics of platform margin.Under the constraint of sequence stratigraphic framework and in combination with the analysis on seismic facies, a detailed description is performed on the characteristics of the Cambrian sedimentary strata in platform area, platform margin and basin area in different periods.Development characteristics,distribution and location of high-quality reservoirs of reef flat facies on platform margin are confirmed.It is of great significance for understanding the characteristics of deep reef flat facies on platform margin and selecting deep targets in Lunshen area.