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声波助排解堵技术研究及现场应用

石油钻采工艺

2006年 28卷第2期

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Title

Study and field application of acoustic assistant drainage and broken-down technology

作者

蒋海岩张建国袁士宝刘晓波雷占祥

Authors

JIANG Hai-yan ZHANG Jian-guo YUAN Shi-bao LIU Xiao-bo LEI Zhan-xiang

单位

中国石油大学, 山东东营 257061 中石化胜利油田东辛采油厂, 山东东营 257000

Organization

College of Petroleum Engineering, China University of Petroleum, Dongying 257061, Shandong, China Dongxin Oil Production Plant, Shengli Oilfield Company, Dongying 257000, Shandong, Chin

摘要

污染、出砂等会造成地层堵塞而影响油井产能,而常规的混气水排液工艺适用范围窄,解堵效果不理想。为了解决这一问题研究了声波助排解堵技术。该技术是将声波解堵与混气水排液工艺相结合而形成的,通过声波振动与混气水排液工艺协同作用扩大声波振动波及范围,同时也增强地层的返排能力,使最终解堵效果提高。该技术在胜利油田孤岛采油厂推广应用29口井,比常规混气水排液工艺平均增液提高3.98倍,平均增油提高5.17倍。对因地层堵塞的低产井、新井以及长停井都起到了很好的解堵增产效果。

Abstract

Due to damage and sanding of formation,oil productivity was severely affected.The applicability of conventional flowing technology with gassy water is very limited.The effect of broken-down is not very satisfied.Combine Acoustic Assistant broken-down with gassy water drainage.Through the common function of acoustic vibration and flowing with gassy water,the sweeping areas are enlarged,at the same time,the back-drainage of the formation is strengthened,which makes the ultimate effect of broken-down is improved.This technology has been widely applied in 29 wells of Gudao oilfield,the technology is obviously better than that of the conventional.It has a good effect on new wells with long time shut-in and low productivity.

关键词：

解堵; 声波助排; 效果分析;

Keywords:

broken-down; acoustic assistant drainage; effectiveness analysis;

基金项目

DOI

10.3969/j.issn.1000-7393.2006.02.020