化学切割技术在渤中油区大修井中的应用
Application of Chemical Cutting Technique in Downhole Overhaul Operation of Bozhong Offshore Oil Block
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- DOI:
- 作者:
- 苑朋飞, 唐佳, 王海涛
YUAN Peng-fei, TANG Jia, WANG Hai-tao
- 作者单位:
- 中国石油集团海洋工程有限公司天津分公司, 天津 300451
Tianjin Branch of China National Petroleum Offshore Engineering Co., Ltd., Tianjin 300451, China
- 关键词:
- 大修井;化学切割;化学药剂;解卡;打捞
downhole overhaul;chemical cutting;chemical agent;stuck releasing;fishing
- 摘要:
- 在油井作业过程中,由于套管变形、大直径工具下井等原因,经常造成卡钻事故,因此有时需要切割并取出卡点以上管柱。化学切割技术是一项新技术,在渤中油区BZ34-4-3等五口大修再完井中采用此技术,大大加快了修井进度。文章从化学切割的组成结构及工作原理、BZ34-4-3井的工艺分析及化学切割的应用等方面对该技术进行介绍。与以往切割弹切割技术等相比,该技术具有切割准、效率高等特点。
Owing to the reasons such as casing deformation and big diameter downhole tool used in the course of downhole operation, drill pipe sticking accidents often happen. Sometimes it is needed to cut the column above the sticking point and move it out. The downhole chemical cutting technique is a new means to do such work. In the operations of downhole overhaul and well completion of BZ34-4-3 well and other four wells, the chemical cutting technique was used and it expedited workover operation greatly. The configuration and working principle of the chemical cutting technique as well as its application in BZ34-4-3 well are introduced in this paper. Compared with earlier cutting techniques, the chemical cutting technique possesses the characteristics such as precise cutting and high efficiency.2011,S1(S1): 87-90 收稿日期：2011-8-10分类号：TE358.4作者简介：苑朋飞（1982- ），男，辽宁本溪人，助理工程师，2006年毕业于中国石油大学（北京），从事海上油气井修井、试油测试、酸化压裂等方面工作。参考文献：
[1] 周望,赵学昌,何师荣.化学切割和喷射切割工艺[J].石油钻采工艺,1988,(1):91-95.
[2] 李乐中.新型化学切割仪[J].石油仪器,1993,(2):120.
[3] 张钧.海上油气田钻完井手册[M].北京:石油工业出版社,1998.