防砂水平井旋转水射流解堵工艺参数优化实验

doi:10.7623/syxb201304018

石油学报 ›› 2013, Vol. 34 ›› Issue (4): 759-764.DOI: 10.7623/syxb201304018

防砂水平井旋转水射流解堵工艺参数优化实验

董长银¹, 隆佳佳¹, 王登庆², 吴建平², 张忠禄¹, 张晓斌¹

1. 中国石油大学石油工程学院山东青岛 266555;
2. 中国石化胜利油田分公司采油院山东东营 257000

收稿日期:2012-12-31 修回日期:2013-03-04 出版日期:2013-07-25 发布日期:2013-07-04
通讯作者: 董长银
作者简介:董长银,男,1976年4月生,1998年毕业于石油大学(华东)石油工程专业,2003年获石油大学(华东)油气田开发工程专业博士学位,现为中国石油大学(华东)副教授,主要从事油气井防砂完井、固液多相流方面的研究工作。Email:dongcy@upc.edu.cn

Experiment of parameters optimization for plug removal by rotating jet flow in sand-control horizontal wells

DONG Changyin¹, LONG Jiajia¹, WANG Dengqing², WU Jianping², ZHANG Zhonglu¹, ZHANG Xiaobin¹

1. College of Petroleum Engineering, China University of Petroleum, Qingdao 266555, China;
2. Research Institute of Oil Production Technology, Sinopec Shengli Oilfield Company, Dongying 257000, China

Received:2012-12-31 Revised:2013-03-04 Online:2013-07-25 Published:2013-07-04

摘要/Abstract

摘要：

设计了水平井解堵效果评价地面实验装置,使用实际堵塞筛管进行了水平井旋转水射流解堵实验,研究了解堵效果与解堵液类型、施工排量、移动方式等施工参数间的定性关系,分析了其影响规律,并对解堵施工参数进行了优化。提出了"阶段推进停留"取代以往的"匀速推进"解堵方式,解堵器每次推进1.5~2 m并停留喷射2~4 min可得到较好的解堵效果。在解堵过程中施工排量越大,解堵效果越好,实际施工中解堵排量不低于550~600 L/min为宜;同时,使用复合酸解堵液,可达到更加均匀的解堵效果。通过实验发现,旋转水射流解堵技术更适用于堵塞严重的筛管,堵塞越严重解堵效果反而越好。

关键词: 水平井, 防砂筛管, 堵塞, 旋转水射流解堵, 参数优化

Abstract:

A particular experimental device was designed to perform experiments on plug removal by rotating jet flow with actually plugged sand-control screens removed from horizontal wells in the Gudao oilfield. With this experiment, qualitative relationships of plug removal effects with construction parameters, such as plug remover types, pumping rate and moving mode, were examined and their sensitive regularity was analyzed as well. Finally, a reasonable plug removal and its corresponding parameters were recommended by optimizing construction parameters of plug removal, and this method involved a fashion of "intermittent moving and staying" instead of the previous one of "uniform-velocity moving". An optimal distance for every advance is 1.5~2 m with staying time for 2~4 min, which can produce a better plug removal effect. During plug removal, the higher the pumping rate, the better the plug removal effect can be gained, thereby a real pumping rate should not be less than 550~600 L/min. In addition, the use of a compound-acid plug remover could gain a more even effect of plug removal. The comparison experiment indicated that compound acid tends to remove screen plug more efficiently than clean-water fluid and the plug removal effect of severely plugged screens is better than that of slightly plugged screens. So, the technique of plug removal by rotating jet flow should be applied preferentially to the severely plugged sand control horizontal wells.

Key words: horizontal well, sand control screen, plugging, plug removal by rotating jet flow, parameter optimization

中图分类号:

TE357.3

董长银, 隆佳佳, 王登庆, 吴建平, 张忠禄, 张晓斌. 防砂水平井旋转水射流解堵工艺参数优化实验[J]. 石油学报, 2013, 34(4): 759-764.

DONG Changyin, LONG Jiajia, WANG Dengqing, WU Jianping, ZHANG Zhonglu, ZHANG Xiaobin. Experiment of parameters optimization for plug removal by rotating jet flow in sand-control horizontal wells[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(4): 759-764.

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防砂水平井旋转水射流解堵工艺参数优化实验

Experiment of parameters optimization for plug removal by rotating jet flow in sand-control horizontal wells

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