红台气田五层分压管柱研究与实践  

STUDY AND APPLICATION OF STRING FOR FIVE-LAYER SEPARATE LAYER FRACTURING IN HONGTAI GASFIELD

作　　者：李军[1,2] 昌海泉 蒋玉双[3] 金建国[4] 鲍黎[4] 陈涛[5] 许泽勇 

机构地区：[1]长江大学 [2]吐哈油田工程技术处 [3]吐哈油田丘东采油厂 [4]吐哈油田井下技术作业公司 [5]江苏盐城佳鑫石油机械厂

出　　处：《新疆石油天然气》2012年第1期90-93,1,共4页Xinjiang Oil & Gas

摘　　要：红台气田属低孔、特低渗气藏,具有非均质性强,纵向含气砂体叠置率高的特点,如采用前期成熟分压2层压裂管柱,完成5层压裂,需多次压井,施工周期长、储层伤害大,增产幅度有限问题,为此开展了一趟管柱分压5层先导性试验,即采用3级Y241+1级Y221封隔器组合,采用投球打开喷砂器凡事进行加砂施工,放喷结束后,逐级解封封隔器,分段解封管柱,下入生产管柱。该管柱在红台2-52井开展了先导性试验,顺利完成施工,增产效果良好。The gas reservoirs of Hongtai Gas Field are characterized by low porosity,super-Low permeability and severe heterogeneity with multilayer in vertical.If the strings for two-layer separate fracturing are taken to complete five-layer fracturing,there will be some problems,such as killing well many times,long-term construction,serious reservoir damage and the little production increasing,so a pilot testing of the string for five-layer separate layer fracturing was conducted,that is,ball-off was used to open sand blower for sand fracturing by three Y241 and a Y221,then releasing packer step by step,releasing string stage-by-stage and running the production string were carried after the end of spurting.The pilot testing of the string for five-layer separate layer fracturing was conducted successfully in Hongtai 25-2 well,which increased the gas productivity obviously.

关 键 词：红台气田 五层分压 管柱 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]