低渗透碳酸盐岩油藏的开发优化注水配伍研究及结垢预测分析  

Research on Optimal Water Injection Compatibility and Scaling Prediction Analysis for Low Permeability Carbonate Reservoir Development

作　　者：张佳琪 张亚芹 ZHANG Jia-qi;ZHANG Ya-qin(Research Institute of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi'an 710065,Shaanxi,China;Xi'an Alberta Resources&Environmental Analysis and Testing Technology Co.,Ltd.,Xi'an 716000,Shaanxi,China)

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,陕西西安710065 [2]西安阿伯塔资环分析测试技术有限公司,陕西西安716000

出　　处：《合成材料老化与应用》2021年第5期95-97,共3页Synthetic Materials Aging and Application

基　　金：陕西省科技统筹创新项目(2016KTCL01-12)。

摘　　要：在低渗透油藏开发中,注入水引起的地层损害评价被认为是至关重要的,因为现场尺度的沉淀物可能桥接狭窄的孔喉。这一问题可以通过处理低盐度水来缓解,尽管与水处理设施相关的资本支出非常高,可能会影响项目的总体经济利润。为此,采用室内流体相容性试验和软件模拟方法,对一个含高矿化度地层卤水(TDS~205g/L)的未开发碳酸盐岩油藏注水过程中无机垢沉积风险进行了评价。该文讨论了不同注入水利用率下的实验室流体相容性试验和结垢预测分析,同时对陆上开发的高二价盐地层卤水油藏中海水注入的结垢风险的潜在影响进行了评价。In the development of low permeability reservoir,the evaluation of formation damage caused by injected water is considered to be very important,because in-situ sediment may bridge narrow pore throat.This problem can be alleviated by treating low salinity water,although the capital expenditure related to water treatment facilities is very high,which may erode the economic profit of the project.Therefore,the risk of inorganic scale deposition during water injection in an undeveloped carbonate reservoir with high salinity formation brine(TDS~205 g/L) was evaluated by using laboratory fluid compatibility test and software simulation method.This paper discusses the laboratory fluid compatibility test and scaling prediction analysis under different injection water utilization rates,at the same time,the potential impact of seawater injection on scaling risk in high divalent salt formation brine reservoir developed on land is evaluated.

关 键 词：强化回收 水合物修复 结垢修复 

分 类 号：TE242[石油与天然气工程—油气井工程]