Application of Acidizing and Plugging Removal Technology in Chang 2 Reservoir of CH Oilfield

被引：6
作者：
Song, Shaofu [1 ]
Deng, Fang [2 ]
Yun, Bo [3 ]
Li, Jinling [1 ,4 ]
Chen, Gang [1 ,4 ]
机构：
[1] Xian Shiyou Univ, Coll Chem & Chem Engn, Shaanxi Prov Key Lab Environm Pollut Control & Re, Xian, Shaanxi, Peoples R China
[2] Linan Middle Sch, Hangzhou, Zhejiang, Peoples R China
[3] PetroChina Changqing Oilfield Co, Oil Prod Plant 11, Xian, Shaanxi, Peoples R China
[4] CNPC Res Inst Safety & Environm Technol, State Key Lab Petr Pollut Control, Beijing, Peoples R China
来源：
2018 4TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND MATERIAL APPLICATION | 2019年 / 252卷
基金：
美国国家科学基金会;
关键词：
Composite plugging removal; Low permeability; Acidizing formula; MODEL;
D O I：
10.1088/1755-1315/252/4/042101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In view of the serious scale and blockage in Chang 2 reservoir of a certain oil production plant, in recent years, based on the scientific and technological project "Acidification technology test of Chang 2 reservoir in XX-YY District" completed in 2013, a series of blockage removal workers suited to different blockage characteristics in this area have been formed by studying and analyzing a large number of indoor data, optimizing the acidification formula. The dosage of additives is increased, thus protecting oil pipes, rods and pumps, and preventing new pollution caused by precipitation of Ca-2+, Mg2+. In view of the specific situation of reservoir blockage, 222 wells have been carried out with various blockage removal measures, such as compound acidification, blockage removal and so on. The cumulative oil increase is 7894.8 tons, with an average of 38.7 tons per well, which has made a positive contribution to the stable production of oil production
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页数：6
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