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通过对该地区41口探井,14口评价井,91口开发井,以及1 106 m岩心,3356块次岩心分析资料的综合分析,对于楼地区S1,S3段储层进行了综合研究。研究表明,该地区构造活动频繁,古地形复杂,造成了复杂的沉积环境,储层分布不稳定,发育程度差异大。该区储层以长石砂岩为主,孔隙类型以原生和次生粒间孔混合型为主,孔隙度分布在16.0%~28.0%之间,渗透率分布在1.0~1 000 m D之间,属中孔中渗储层。岩心观察结合试油试采结果,认为岩心含油级别为油浸以上的细砂岩储层试油获得工业油流,结合电阻率和时差,准确标定该区的含油性、岩性、物性、电性标准,确定该区S1和S3的“四性”关系,根据各区块储层特征重新制定油气水层识别标准及储层参数解释模型,对今后油区勘探开发评价具有重要的指导意义。
Based on the comprehensive analysis of the data of 41 exploration wells, 14 evaluation wells, 91 exploration wells and 1 106 m core and 3356 sub-cores in this area, a comprehensive study on the reservoirs in stages S1 and S3 of the Lou area was conducted. The research shows that the tectonic activities in the area are frequent, the paleogeomorphology is complex, resulting in complex sedimentary environment, unstable reservoir distribution and great difference in development degree. The main feldspar sandstone in this area is that the pore types are dominated by primary and secondary intergranular and intergranular pores, with porosity distribution ranging from 16.0% to 28.0% and permeability ranging from 1.0 to 1 000 mD , Is a mesoporous medium permeability reservoir. According to the results of core observation combined with test and production, it is considered that the oil content of the core oil is tested for oil in the fine sandstone reservoirs above the oil immersion to obtain the industrial oil flow. The resistivity and time difference are used to accurately calibrate the oiliness, lithology, physical property, Standard to determine the relationship between the “four sexes” of S1 and S3 in this area, and to re-establish the identification standard of oil-gas-water layer and interpretation model of reservoir parameters according to the reservoir characteristics of each block, which is of great guiding significance for the future oil area exploration and development evaluation.