考虑有效驱动体系的合理井网密度计算方法  

Calculation method of reasonable well pattern density considering effective driving system

作　　者：王焕 黄伟明[2] 贺梦琦[3] 王玲[4] WANG Huan;HUANG Weiming;HE Mengqi;WANG Ling(Academic Affairs Office,Tangshan Normal University,Tangshan 063000,China;Oil Recovery Engineering Research Institute,Daqing Oilfield Co.,Ltd.,Daqing 163712,China;Drilling and Production Technology Research Institute,Liaohe Oilfield,Panjin 124010,China;Exploration and Development Research Institute,Liaohe Oilfield,Panjin 124010,China)

机构地区：[1]唐山师范学院教务处,河北唐山063000 [2]大庆油田有限责任公司采油工程研究院,黑龙江大庆163712 [3]辽河油田钻采工艺研究院,辽宁盘锦124010 [4]辽河油田勘探开发研究院,辽宁盘锦124010

出　　处：《合肥工业大学学报（自然科学版）》2018年第8期1108-1111,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51474071)

摘　　要：低渗透油田存在启动压力梯度,应用常规方法计算采收率误差较大。文章提出了针对低渗透油田考虑有效驱动体系的采收率计算公式,并利用有效驱动系数对该计算公式进行修正,在此基础上给出了合理井网密度的经济评价模型,该计算公式和评价模型更加符合低渗透油田的实际情况。以国内某低渗透油田二类区块为例,应用该模型进行了合理井网密度的经济评价,给出了不同油层厚度和不同原油价格下的合理井网密度,为该油田进行下一步的注水开发加密调整提供技术指导。Threshold pressure gradient exists in low permeability oilfield,and the conventional calculation method of oil recovery is not suitable.In this paper,EOR formula for low permeability oilfield considering effective driving system was proposed,and the formula was modified with effective driving coefficient.On this basis,an economic evaluation model of reasonable well pattern density was given.The formula and evaluation model were more in line with the actual situation of low permeability oilfield.Taking the second type block of a low permeability oilfield in China as an example,this model was used to evaluate the reasonable well pattern density.The reasonable well pattern density under different oil layer thicknesses and different crude oil prices was given.This research can provide technical guidance for the water injection encryption adjustment of the oilfield.

关 键 词：低渗透油田 井网密度 经济评价 采收率 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]