摘要
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。
Three kinds of main plugging factors in A8 well have been analyzed, their sequence is effluent oil plugging, solidity invasion plugging and sanding plugging. Then the sand washing and chemical clearing tests were carried out based on the research. It shows that sand washing can remove the plugging in well bore and the chemical plug removing agent, BRJ 9604, can remove the near well bore plugging, their stimulation effects of injection wells are obvious and their valid periods are about one year. The result has guiding and reference significance to Suizhong oilfield and the others.
基金
中国海洋石油总公司研究项目
关键词
油田
注水井
堵塞
解堵增注
冲砂洗井
解堵剂
Suizhong oilfield, injector, plugging, plug removal Free words: sand washing, chemical plug removing agent
