文东沙三中油藏储层性质对水驱开发规律的影响

Effect on Water Flooding Development Rule of Reservoir Characteristics of the Middle of the Third Section of Shahejie Formation in Wendong Oilfield

陈民锋1,张兴焰2,冷　风2,曾　明3

Chen Minfeng , Zhang Xingyan, Leng Feng, et al

1.石油大学(北京) 石油工程系;2.中原油田分公司勘探开发科学研究院;3.中原石油勘探局对外经济贸易总公司

Petroleum Engineering Department of Petroleum University , Beijing 102200 , P. R. China

为掌握文东沙三中油藏的基本开发规律及在水驱后期的动态变化特征,根据储层岩心实验结果,应用油藏动、静态资料,综合分析了文东沙三中油藏储层特性与渗透率的关系,启动压力对开发效果的影响,以及储层对酸、水的敏感性;研究了在不同水驱阶段各项开发指标的变化规律。根据研究结果,提出储层渗透率的大小是影响文东沙三中油藏注水开发效果最根本的原因,并由此提出了在今后开发调整工作中应采取的主要对策。

Based on experimental result of formation core as well as production and geology data , this paper comprehensively analyzes the relationship between formation characteristics and permeability , the effect of starting pressure on production result , and the sensitivity of formation to acid and water in the middle S3 of Wendong area , and also studies the variation rules of various production indexes in different water flooding stages so as to understand the basic development rules and its dynamic changes in later period of water flooding in the middle S3 of Wendong area. According to the study , it is found that the size of permeability is the major reason to affect the water flooding results in the middle S3 of the area , and therefore the method for development adjustment is presented for the further production.