注水防砂管柱环空洗井工艺  

Well washing technology of water injection sand control string

作　　者：谢昊 Xie Hao(EnerTech-Drilling&Production Co,CNOOC,Tianjin 300452)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《石化技术》2022年第2期16-17,共2页Petrochemical Industry Technology

摘　　要：在油井注水井作业中,由于注水井使用清水进行地层注入实现周边油井增产,清水在长时间注入过程中会产生杂质和水垢,防砂管柱与套管之间的筛套环空产生的杂质和水垢无法排除,必须通过后期措施进行清理,目前尚无工艺可以实现筛套环空清洗,导致注水井注水管柱寿命缩短,一旦后期出现注水筛管堵塞,注水压力上升,将影响注水效果,导致周边生产井增产困难。Water injection sand control string well washing process in the operation of oil well and water injection well,because the water injection well uses clear water for formation injection to increase the production of surrounding oil wells,impurities and scale will be generated during the long-term injection of clear water.The impurities and scale generated in the screen sleeve annulus between sand control string and casing must be removed by later measures,At present,there is no process to clean the annular space of the screen sleeve,resulting in the shortening of the service life of the water injection string of the water injection well.Once the water injection screen pipe is blocked in the later stage and the water injection pressure rises,the water injection effect will be affected and it will be difficult to increase the production of the surrounding production wells.

关 键 词：注水防砂 洗井 筛管堵塞 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]