不同有机物连续驱替对岩心渗透率的影响  

Different Organics Continuous Flooding on the Influence of Core Permeability

作　　者：姚君波[1] 卢渊[1] 伊向艺[1] 闫星宇[2] 袁立[1] 申乃敏[3] 

机构地区：[1]成都理工大学能源学院,成都610059 [2]大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163412 [3]中国石化河南油田分公司石油勘探开发研究院,河南南阳473132

出　　处：《重庆科技学院学报（自然科学版）》2013年第5期24-27,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：教育部博士学科点新教师类基金项目(20095122120012)

摘　　要：在油田开发的过程中,由于钻井、完井、压裂等原因引起的机械杂质对油层的污染、地层流体中细菌的滋生、地层本身的结垢和结蜡等,对地层产生很大伤害,使油井产量下降。基于各种不同有机物连续驱替对岩心渗透率影响的实验,通过用煤油、混苯、大阳离子聚合物、小阳离子聚合物分别对不同渗透率的8块人造岩心和8块天然岩心进行驱替,测量出不同时间间隔下不同时间点的岩心渗透率,分析总结渗透率变化曲线,研究有机物对人造岩心和天然岩心的渗透性的影响,从而得出岩心渗透率在有机物驱替条件下的变化规律。Due to the drilling,completion and fracture result in mechanical impurity to pollut oil layer,bacterial growth of formation fluid,formation itself scale and paraffin,etc,it tends to produce formation damage,and makes oil well production decline.Based on the experiment to research the influence of seepage rate when organic matter continual displace the core sample,through the kerosene,mixes the benzene,the big positive ion polymer,the small positive ion polymer separately displacing the different penetration coefficient 8 man-made core samples and 8 natural core samples,it measures the seepage rate of core sample during the different time-gap.At the same time,it analyzes and summaries seepage rate variation curve,researches the influence of seepage rate that organic matter displace the man-made core sample and the natural core sample,thus obtains the change law of the seepage rate that organic matter displace core sample.

关 键 词：地层损害 堵塞 有机物 驱替 渗透率 

分 类 号：TE311[石油与天然气工程—油气田开发工程]