重复压裂工艺在南翼山油田的研究及应用  

Research and Application of Repeated Fracturing Technology in Nanyishan Oilfield

作　　者：姜楠 董家滨 杨建轩 杜全庆 陶成学 JIANG Nan;DONG Jiabin;YANG Jianxuan;DU Quanqing;TAO Chengxue(No.4 Oil Production Plant,PetroChina Qinghai Oilfield Branch Compang,Dunhuang,Gansu 816499,China;Engineering and Technology Department,PetroChina Qinghai Oilfield Branch Compang,Dunhuang,Gansu 816499,China)

机构地区：[1]中国石油青海油田分公司采油四厂,甘肃敦煌816499 [2]中国石油青海油田分公司工程技术处,甘肃敦煌816499

出　　处：《石油工业技术监督》2023年第9期58-63,共6页Technology Supervision in Petroleum Industry

摘　　要：南翼山油田浅油藏压裂投产初期产能效果较好,但随着时间推移,单井产能递减较为严重,为焕发老井生机必须采取有效的增产措施。由于部分老井受限于早期压裂投产的施工规模,缝网改造规模小、生产过程中裂缝堵塞、支撑剂破碎率增加或嵌入裂缝壁面,导致裂缝导流能力逐步降低、甚至失去作用。经调查研究对这类井可开展暂堵转向后重复压裂工艺,形成新的复杂缝网,提高油井产量,实现油藏增产稳产的效益开发目标。In Nanyishan oilfield,the initial productivity of shallow reservoir fracturing is good,but as time goes by,the productivity of single well is decreasing seriously,so effective stimulation measures must be taken to revive the vitality of old well.Due to the limited construction scale of early fracturing production in some old wells,the small scale of fracture network reconstruction,the fracture blockage in the production process,the increase of proppant breakage rate or the embedding of proppant into the fracture wall,lead to the gradual decrease of fracture conductivity or even loss of effect.Through investigation and research,the process of re-fracturing after temporary plugging and turning can be carried out to form a new complex fracture network,improve the production of the well,and achieve the benefit development goal of increasing and stabilizing the production of the reservoir.

关 键 词：暂堵转向 重复压裂 提高采收率 

分 类 号：TE357[石油与天然气工程—油气田开发工程]