所谓泵上无油管抽油工艺,就是用套管泵抽油。 为了提高泵效,简化井下作业工艺,便于分层采油及不压井作业,胜利油田胜采大队研究试验了套管泵。经现场试验初步取得良好效果。 套管泵就是把一般的管式泵变成杆式泵使用。不用油管连接而用抽油杆下入井内,泵抽出的油直接从套管内流到地 The so-called pump without tubing pumping process, that is, with casing pump oil. In order to improve pump efficiency, simplify underground workmanship, and facilitate stratified production and non-well operations, Shengli Oilfield Shengse Brigade studied the casing pump. The field test initially achieved good results. Casing pump is the general tube pump into a rod pump use. Instead of a tubing connection, the sucker rod is lowered into the well and the oil drawn by the pump flows directly from the casing to the ground