肯基亚克油田聚合物驱效果评价及参数优化  

Effect evaluation and parameter optimization of polymer flooding in Kenneyak oilfield

作　　者：卢祥国[1] 隆锋[1] 武力军[2] 陈福民[2] 

机构地区：[1]大庆石油学院提高油气采收率教育部重点实验室,黑龙江大庆163318 [2]大庆油田勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油学院学报》2006年第6期28-30,共3页Journal of Daqing Petroleum Institute

基　　金：中国石油天然气集团公司勘探开发公司CNPC-阿克纠宾油气股份公司重点科研项目(020102-2-2)

摘　　要：肯基亚克油田盐上油藏具有油层埋藏深度浅、温度低、油层胶结强度低、原油黏度高和非均质性严重等特点,水驱和蒸汽驱开发效果差.依据油藏实际状况和聚合物驱提高采收率原理,利用室内物理模拟方法,对该油田聚合物驱油效果进行了评价,优化了聚合物用量、黏度比、段塞尺寸及组合方式和调剖时机等注入参数.研究结果表明,综合考虑技术和经济因素,建议先采用0.05 PV、Cr3+交联聚合物凝胶进行调剖处理,然后注入质量浓度为1 000 mg/L、聚合物用量为380 mg/(L.PV)的整体聚合物段塞(室内实验结果表明可提高采收率24.4%),预计在该油田上应用可提高采收率10%以上.There being characteristics of shallow embedding,low temperature,poor cementation,high viscosity and serious heterogeneity in the salt reservoir of Kenneyak oilfield,the effect of water flooding and steam flooding is becoming worse and worse.In view of the reservoir actual state and the principle of enhanced oil recovery of polymer flooding,this paper makes some evaluations of the effect of polymer flooding of this oil field and makes some optimization of the injection parameter of polymer dosage,the viscosity ratio,the size of slug,namely the combination fashion,and profile modification.The result shows that we advise to adopt 0.05 PV Cr^(3+) cross-linked polymer gel to make profile modification disposal,then inject the polymer solution whose mass concentration is 1 000 mg/L and dosage is 380 mg/(L·PV) integer polymer slug considering technical and economical factors(The result shows that it can enhance oil recovery by about 24.4%).It can be evaluated to enhance oil recovery by more than 10% if it is used in this oilfield.

关 键 词：肯基亚克油田 稠油油藏 聚合物驱 物理模拟 参数优化 效果评价 

分 类 号：TE345[石油与天然气工程—油气田开发工程]