高压低渗区块高压注水技术的应用与研究  

Application and Research of High Pressure Water Injection Technology in High Pressure and Low Permeability Block

作　　者：孙建伟 SUN Jianwei(NO.Oil Production Plant of Petro China HuaBei Oilfield Company,Langfang Hebei 065000)

机构地区：[1]华北油田第四采油厂,河北廊坊065000

出　　处：《中国科技纵横》2024年第8期11-13,共3页China Science & Technology Overview

摘　　要：油藏在注水开发过程中,地层中的黏土矿物膨胀,使注水压力不断升高,造成注水井欠注。开采过程中,随着油藏压力和井底流压减小,岩石会发生变形使空隙减小,油藏渗透率降低,导致地层能量下降,产量下降。因此对该类油藏要进行合理的、有效的开发,提出合理的注水模式,以期取得较好的油田开发效益。The fault block An69-91 Reservoir is deeply buried with high temperature,high pressure and low permeability,especially the reservoir heterogeneity is serious,High mud content,in the process of water injection development,the swelling of clay minerals in the formation,so that water injection pressure rising,resulting in under-injection wells.With the decrease of reservoir pressure and bottom hole flowing pressure,rock deformation will reduce the pore space and reservoir permeability,resulting in the decrease of formation energy and production.Therefore,this kind of reservoir should be developed reasonably and effectively,and a reasonable water injection model should be put forward in order to obtain better oilfield development benefits.

关 键 词：低渗 高压注水 注水压力 

分 类 号：P618.13[天文地球—矿床学] TE1[天文地球—地质学]