近岸水下冲积扇储层特征研究——以南阳凹陷北马庄-黑龙庙地区为例

Reservoir Characteristics of Coastal Underwater Alluvial Fan——By Taking Baimazhuang-Heilongmiao Area in Nanyang Depression for Example

以取心井化验分析资料为基础,通过地震相识别,对南阳凹陷北马庄-黑龙庙地区储层从岩石学特征、物性特征、沉积相等方面进行综合分析与评价,认为该区储层为一套低孔低渗储层,岩性主要为石英砂岩,少量岩屑质长石杂砂岩和岩屑长石砂岩,具有中等偏低的成分成熟度和较低的结构成熟度,储集性能一般。通过对该区有利储集相带展布特征和含油气性研究,加深了该区油气成藏规律的认识,有助于充分挖掘其勘探潜力。

Based on assay test data of coring wells,through recognition of seismic facies,the characteristics of lithology,physical property,sedimentary facies were analyzed and evaluated in Baimazhuang-Heilongmiao Area in Nanyang Depression.It is considered that the reservoirs in the area are a set of low porosity low permeability reservoirs.The lithology mainly includes quartz sandstone and little lithic arkosic wacke and lithic gray wacke sandstone with mid-low composition maturity and general reservoir property.By studying the distribution of reservoir phase belt and oil and gas bearing property,the understanding of reservoir forming rules in the area was deepened,it is beneficial for full tapping the potential in the area.