高孔高渗断鼻构造油藏油水倒置成因分析  

Oil-Water Inversion Genesis of High-Porosity and High-Permeability Fault-Nose Reservoir

作　　者：程大强 陈小琴 王梦琪[1] 王美思 王金凯[1] 

机构地区：[1]山东科技大学,山东青岛266590 [2]中国石油华北油田分公司,河北任丘062552

出　　处：《特种油气藏》2016年第6期102-106,共5页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金"水淹油环地下储气库高速注采过程中损失气赋予规律及表征方法研究"(51504143);山东省自然科学基金"砂岩地下储气库高强度注采过程中损失气的赋存规律及表征方法研究"(ZR2014DP012)

摘　　要：饶阳凹陷路6、路27断块主要含油层段具有高孔、高渗特征,构造形态属于断鼻构造,在实际勘探开发过程中出现油水倒置现象。根据油层、油水同层的解释标准差异性,重新确立砂体解释标准;通过小层等时对比性研究,对油砂体性质进行二次解释;结合实际试油资料分析,验证重新解释结果的正确性;研究沉积体系,分析沉积相特征,了解砂体连通性及油气运移性质;分析水体矿化度高低,明确高低部位水体性质及来源。通过综合研究,分析储层原始状态的油水分布规律,解释出油水倒置分布现象的成因,有效地指导油田进一步勘探开发,为精细油藏分析提供依据。The major oil reservoirs in Faultblock Lu6 and Faultblock Lu27 of Raoyang Depression are featured by high-porosity,high-permeability and fault-nose structure. Field exploration indicates oil-water inversion. Sandbody interpretation criterion is reestablished according to the difference of interpretation criteria in oil layer and oil-water layer. The properties of oil sandbodies are re-interpreted by sublayer isochronous correlation. Field production testing data is combined to verify the re-interpretation. Sedimentary system and sedimentary facies are studied to determine the sandbody connectivity and hydrocarbon migration. Water salinity is tested to identify the properties and sources of aquifers in the high and low parts. The initial oil-water distribution pattern in the reservoir is analyzed to gain the genesis of oil-water inversion by comprehensive research. This research could provide effective guidance for further exploration and development and could provide certain reference for fine reservoir characterization.

关 键 词：饶阳凹陷 路6断块 路27断块 高孔、高渗 油水倒置 成因分析 

分 类 号：TE122.1[石油与天然气工程—油气勘探]