绥中36-1油田注水井堵塞原因分析及对策

Reason Analysis for Injection Well Clogging and the Measures to Breaking down Plugging in SZ36-1 Oil Field

崔波 王洪斌 冯浦涌 杨永庆

CUI Bo WANG Hongbin FENG Puyong YANG Yongqing

中海油田服务股份有限公司油田生产研究院, 天津 300452

Production Research Institute, China Oil field Services Limited, Tianjin 300452, China

绥中36-1油田注水井注入压力普遍偏高,导致注水量下降,地层能量亏空,油田开发受到影响。注水井注入压力上升的主要原因是地层受到堵塞,此文从注水水质、储层敏感性和工艺措施三个方面分析了绥中36-1油田注水井堵塞的原因,提出了解除注水井堵塞的对策,并以D17井和E7井为例论述了氟硼酸体系对绥中36-1油田注水井解堵的有效性。

The injection pressure is generally higher in the injection wells of SZ36-1 oil field, resulting in decreasing in water injection, and decline in formation energy, and the oil field development has also been affected. The main reason for injection well pressure rise in SZ36-1 oil field is the formation plugging. In this paper, the main three reasons for injection well clogging in SZ36-1 oilfield have been discussed, including the water quality, reservoir sensitivity and process measures, and the measures to remove the clog of injection wells in SZ36-1 oil field have been put forward. With D17 well and E7 well in SZ36-1 oil field as an example, the effectiveness of fluo boric acid system in removing the clog of injection wells has been discussed.

https://doi.org/10.3969/j.issn.1008-2336.2012.02.064