陇东环县油区M井区长8储集层特征及单井产能预测  

Reservoir characteristics of Chang 8 and single-well productivity prediction of M wellblock in Huanxian oil district,Longdong area

作　　者：赵军龙[1] 闫博[1] 赵靖舟[1] 王轶平[2] 许登才 高秀丽[1] 

机构地区：[1]西安石油大学地球科学与工程学院,陕西西安710065 [2]中国石油长庆油田分公司第二采油厂,甘肃庆阳745100 [3]贵州省水城县煤炭局,贵州水城553000

出　　处：《石油与天然气地质》2013年第5期694-699,共6页Oil & Gas Geology

基　　金：陕西省教育厅科研计划项目(11JK0781)

摘　　要：为了制定陇东环县油区M井区长8储集层合理的单井生产方案、确保M井区产能最优化，将岩性、物性和含油性等储集层静态地质特征与渗流规律、生产状况等动态特征研究相结合，基于M井区的地质资料、岩心资料、相渗分析资料和测井资料等开展了储集层特征、剩余油分布规律及单井产能预测，预测了M井区合理的单井产量。研究表明：M井区长8储集层具备典型的超低渗透储集层特征，测井响应特征较为显著，储集层呈现对油水的双重润湿性；M井区油藏为构造岩性油藏，油水分布受到岩性控制作用，沿着河道方向，物性好、含油性好、在构造相对高部位含油性好；M井区产量主要来自于M井区中-东南部，目前剩余油在平面上主要分布在M井区北部、中南部局部区域；物性参数法、试油资料折算法和试采法适合于M井区的单井产能预测。 M井区长8储层合理的单井产量为3.5～4.0t/d。研究成果为M井区长8储集层进一步开发奠定了重要的资料基础。For the purpose of making rational single-well production programs for Chang 8 reservoir of M wellblock in Huanxian oil district area , Longdong and optimizing productivity of M wellblock , we performed a comprehensive study through integrating static geologic features of the reservoir such as lithologies ,physical properties,oil-bearing properties with dynamic features like seepage flow patternss and production performance .Based on the geological data ,core data, logging data and phase permeability data of the M wellblock ,we carried out the research on reservoir characteristics ,re-sidual oil distribution and single-well productivity ,and predicted the reasonable single-well production of this area .Chang 8 reservoir of M wellblock shows typical ultra-low permeability ,significant logging response features and double wettability to oil and water .The reservoirs in M wellblock are structural-lithological reservoirs and the oil-water distribution is con-trolled by lithology .Oil-bearing properties are good in reservoirs with good poroperm characteristics along the main chan-nel and in reservoirs on relative structural highs .Current production of M wellblock is mainly from southeastern-central part of M wellblock ,with residual oil mainly occurring in the northern part and local southern-central part .The physical parameter method ,test data conversion method and production test method are suitable for the prediction of single-well production in the study area .The rational single-well production is 3.5~4.0 t/d.These results provide important data-base for the further development of Chang 8 reservoir .

关 键 词：储集层特征 单井产能预测 M井区 环县油区 陇东地区 

分 类 号：TE122.2[石油与天然气工程—油气勘探]