加砂压裂技术在高温深井碳酸盐岩储层成功应用  

Successful Sand Fracturing on Deep/High Temperature Carbonate Reservoir

作　　者：王永辉[1] 车明光[1] 张福祥[2] 彭建新[2] 杨向同[2] 袁学芳[2] 

机构地区：[1]中国石油勘探开发研究院廊坊分院,河北廊坊065007 [2]塔里木油田公司,新疆库尔勒841000

出　　处：《油气井测试》2016年第4期46-49,77,共4页Well Testing

摘　　要：酸化压裂技术是碳酸盐岩储层增产改造的成熟、有效技术,对于深层碳酸盐岩储层由于其储层温度高、地应力大,酸蚀作用距离短、有效缝长不足,酸压改造效果,特别是稳产效果往往不尽人意。将常规砂岩压裂改造的成熟技术——加砂压裂技术应用于高温深层碳酸盐岩的改造,采用包括小粒径支撑剂,低损害压裂液,砂浓度以低起点、小台阶、多步、控制最高砂浓度泵注程序等技术路线,加砂压裂改造工艺获得成功。经过十年的跟踪研究表明,累计增油10.3×104m3、天然气0.51×108m3,加砂压裂技术应用取得了良好的增产、稳产效果,为高温深层碳酸盐岩储层增产改造提供了新思路和途径。Acid fracturing is the main naturally and effectively technology enhancing production for carbonate reservoir. For the deep / high temperature reservoir,because of the high formation temperature and big closure pressure,short distance of acid-rock reaction and not deep enough of effective fracture,most acid fracturing results,especially the stable production effect are not as good as expected. Sand fracturing technique,which is the mature conventional sand fracturing technology,is applied to high temperature deep carbonate reservoir,using technical routes including small diameter proppant,low damage fracturing fluid,sand concentration starting with a low point,smaller step,multi-step,controlling the highest concentration of pump injection program,sand fracturing technology has been success.After 10 years of follow-up study,it is showed that increased oil is 10. 3 x 104 m3,natural gas is 0. 51 x 108 m3,and sand fracturing technology has obtained the good effect of yield and stable yield,which provides a new thinking and a way to increase production and transformation for high temperature deep carbonate reservoir.

关 键 词：高温 深层 碳酸盐岩 加砂压裂 

分 类 号：TE357[石油与天然气工程—油气田开发工程]