永乐油田葡49区块油水分布特征及控制因素  

Oil water distribution characteristics and controlling factors in Pu49 block of Yongle oilfield

作　　者：张明学[1] 李金宝 王志勇 Zhang Mingxue;Li Jinbao;Wang Zhiyong(School of Earth Sciences, Northeast Petroleum University, Daqing 163318, China)

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《黑龙江科技大学学报》2022年第1期27-32,共6页Journal of Heilongjiang University of Science And Technology

摘　　要：为研究永乐油田葡49区块油气成藏机理与油水分布特征,利用测井、录井、生产动态等资料,研究油气疏导的动态空间模式,分析葡49区块油气成藏机理及构造高部位含水的原因。研究结果表明:横向上油水分布具有分区特点,同断块内油水分布遵循“上油下水”变化规律,相邻断块间油水分布差异较大;垂向上具有“下油上水”的特征,供烃不足是井区高含水的关键所在;地垒周围下降盘优先成藏、地垒周围反向断层成藏、油源断层不同部位垂直断距差异是导致高部位含水的主要原因。该研究可为油田下一步勘探开发提供借鉴。This paper aims to study the mechanism behind the oil and gas accumulation of Pu49 block in Yongle oilfield and its oil-water distribution characteristics.The study involves investigating the dynamic spatial model of oil and gas dredging using the data of logging,logging and production performance,and analyzing the oil and gas accumulation mechanism and the cause of water cut in the high part of the structure.The results show that the horizontal oil-water distribution has the zoning characteristics,the oil-water distribution in the same fault block follows the variation law of"upper oil and lower water",with great differences in oil-water distribution between adjacent fault blocks;the vertical oil-water distribution is characterized by"lower oil and upper water",and the lack of hydrocarbon supply holds the key to the high water cut in the well area;the high water content arises primarily from the preferential reservoir formation in the falling wall around the horst,the reservoir formation of reverse faults around the Horst,and the differences of vertical fault offset in different parts of oil source faults.This study can provide reference for the next exploration and development of the oilfield.

关 键 词：永乐油田 油水分布规律 高部位含水 成藏模式 

分 类 号：P618.130.2[天文地球—矿床学]