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分析了造成Ａ８ 井堵塞的三种主要原因，认为堵塞的原因依次是污油堵塞、固体颗粒侵入堵塞和地层出砂堵塞。在此基础上进行了冲砂洗井和化学解堵增注试验。试验结果表明：冲砂洗井能够有效地解除井筒堵塞，化学解堵剂ＢＲＪ－９６０４ 可以有效地解除近井地带堵塞，两者增注效果都比较明显，有效期已接近１ 年。研究成果对绥中３６－１ 油田及其它油田的注水开发有指导和参考价值。
The three main causes of blockage in well A8 were analyzed. The reasons for blockage were as follows: sewage sludge blockage, solid particle intrusion blockage and formation sand blockage. On the basis of this, we carried out flushing and flushing injection and chemical plugging injection test. The test results show that flushing flushing well can effectively relieve the blockage of wellbore. The chemical plugging agent BRJ-9604 can effectively relieve blockage in the near wellbore zone. The research results have guiding and reference values for water injection development of Suizhong 36-1 oilfield and other fields.