细管实验法测定CO_(2)驱最小混相压力  

Determination of minimum miscibility pressure for CO_(2)flooding using the thin tube experiment method

作　　者：解正启 何杰 李坷瑶 XIE Zhengqi;HE Jie;LI Keyao(Zichang Oil Production Plant,Yanchang Oilfield Co.,Ltd.,Zichang Shaanxi 717300,China;Dingbian Oil Production Plant,Yanchang Oilfield Co.,Ltd.,Dingbian Shaanxi 718600,China)

机构地区：[1]延长油田股份有限公司子长采油厂,陕西子长717300 [2]延长油田股份有限公司定边采油厂,陕西定边718600

出　　处：《石油化工应用》2024年第11期72-75,共4页Petrochemical Industry Application

摘　　要：CO_(2)驱是一种针对低渗透油藏物性差、非均质性强、采收率低等问题的更高效和更具潜力的提高采收率方法。本文使用细管实验对延长油田白湾子区块和樊学区块CO_(2)驱最小混相压力(MMP)进行测定。实验得到白湾子区块的原油MMP为21.30 MPa,樊学区块的原油MMP为16.60 MPa。实验结果可为目标区域注CO_(2)驱提高采收率及降低操作成本提供科学理论依据。CO_(2)flooding is a more efficient and promising method for improving oil recovery in low permeability reservoirs,which addresses issues such as poor physical properties,strong heterogeneity and low oil recovery.This article uses a thin tube experiment to determine the minimum miscibility pressure(MMP)of CO_(2)flooding in the Baiwanzi and Fanxue blocks of Yanchang oilfield.The experimental results showed that the MMP of crude oil in the Baiwanzi block was 21.30 MPa,and the MMP of crude oil in the Fanxue block was 16.60 MPa.The experimental results can provide a scientific theoretical basis for improving oil recovery and reducing operating costs by injecting CO_(2)into the target area.

关 键 词：CO_(2)混相驱 细管实验 最小混相压力 

分 类 号：TE357.45[石油与天然气工程—油气田开发工程]