辽河西部凹陷杜84块兴隆台Ⅰ油层隔夹层识别、成因及分布特征

发布时间：2018-09-10 08:59

【摘要】：隔夹层是储层非均质性的主要控制因素之一,探讨隔夹层为油藏精细描述和剩余油研究奠定基础。以岩心、生产动态数据为基础,综合辽河西部凹陷曙一区1735口测井资料,利用电性及物性测试分析,按照岩心标定测井曲线,编制5种参数(声波时差、深侧向电阻率、感应电导率、孔隙度和渗透率)交会图。将研究区的隔夹层分为泥质隔夹层和物性隔夹层两类,并建立两类隔夹层定量划分标准和识别模板。研究区隔夹层发育主要受控于洪泛期沉积、局部区域水动力减弱、多期河道切割侵蚀、前积(侧积)和河床滞留沉积的综合作用。泥质隔夹层主要集中分布在滨浅湖和分流间湾处,物性隔夹层主要分布在水下分流河道分支处及分流间湾的局部;在靠近物源区,隔夹层分布较少且较孤立,仅在两期河道叠置间发育,而在远离物源区分布明显增多且厚度增大;隔夹层在垂向上的分布与所处的基准面旋回关系密切,在中期旋回上升半旋回的3个阶段,隔夹层自下而上数量增多、厚度增大。最后提出隔夹层的岩性、物性、厚度及展布特征影响蒸汽辅助重力泄油(SAGD)技术对辽河油田稠油的生产。
[Abstract]:Intercalation is one of the main controlling factors of reservoir heterogeneity. On the basis of core and production dynamic data, 1735 logging data of Shu1 area in western depression of Liaohe are synthesized, and five parameters (acoustic moveout, deep lateral resistivity) are compiled according to core calibration curve by using electrical and physical properties test and analysis. Inductive conductivity, porosity, and permeability). The interlayer in the study area is divided into two types: muddy intercalation and physical barrier intercalation, and the quantitative partition standard and identification template of the two kinds of barrier interlayers are established. The development of intercalation in the study area is mainly controlled by flood deposition, local hydrodynamic weakening, multi-stage channel cutting erosion, forward accumulation (lateral accumulation) and riverbed retention deposition. The muddy intercalation mainly distributes in shallow lake and intertidal bay, the physical intercalation mainly distributes at the branch of underwater distributary channel and the part of distributary interlayer, and in the area near the source, the interlayer distributes less and isolated. Only between the two stages of the river, the distribution in the far source area increases obviously and the thickness increases, and the vertical distribution of the intercalation is closely related to the base-level cycle, and in the three stages of the mid-cycle ascending half-cycle, the interlayer distribution is closely related to the base-level cycle. The number of interlayer increases from bottom to top and the thickness increases. Finally, it is pointed out that the lithology, physical properties, thickness and distribution characteristics of intercalation affect the production of heavy oil in Liaohe Oilfield by steam assisted gravity drainage (SAGD) technique.
【作者单位】：中国地质大学(北京)能源学院;中国地质大学(北京)海相储层演化与油气富集机理教育部重点实验室;中国石油长庆油田分公司第一采油技术服务处;
【基金】：国家自然科学基金项目(41102078) 国家重点基础研究发展计划(973计划)项目(2012CB214802)
【分类号】：TE31;P618.13

【相似文献】