摘要
为解决油藏开发过程中准确有效地进行见水时间预测的难题,从而制定油井合理生产制度、控制油井见水时间和延长油井无水采油期,实现高陡构造边水油藏的高效开发,在假设原始油水界面为一水平面的基础上,考虑油藏为具备一定倾角、地层均质且各向同性的高陡构造边水油藏,利用油、水渗流规律,结合重力影响,在理论上推导出了高陡构造边水油藏的见水时间预测公式,并运用实例分析了地层倾角、油层渗透率、油井距边水距离等因素对见水时间的影响。结果表明,利用所推导出的见水时间预测公式进行高陡构造边水油藏见水时间预测是可行的,该公式具有较好的实用性,对同类型的油藏开发具备一定的借鉴意义。
In order to solve the problem of predicting the water breakthrough time accurately and effectively in the process of reservoir development,so as to formulate the reasonable production system of oil wells,control the water breakthrough time of oil wells,prolong the anhydrous oil production period of oil wells,and therefore realize the efficient development of edge water reservoirs in high-steep structure.On the basis of assuming that the original oil-water interface is a horizontal plane,the reservoir is considered to be homogeneous and isotropic with a certain angle.Based on the oil-water seepage law,considering gravity,the theoretical formula to calculate the water breakthrough time is deduced.Case analysis is implemented to study the effects of key factors such as formation dip angle,reservoir permeability and well distance from edge water.It is proved that the formula and the method are feasible and applicable,which can be used as a reference for the development of the same type.
作者
邓勇
马成
孙宝
罗从勇
DENG Yong;MA Cheng;SUN Bao;LUO Congyong(Zhenhua Petroleum Holding Co.,Ltd.,Beijing 100000,China;Chengdu North Petroleum Exploration&Development Technology Co.,Ltd.,Chengdu,Sichuan 610081,China)
出处
《石油地质与工程》
CAS
2022年第5期71-74,共4页
Petroleum Geology and Engineering
关键词
高陡构造
边水油藏
地层倾角
重力
见水时间预测
high-steep structure
edge water reservoir
formation dip angle
gravity
water breakthrough time prediction
