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风城油田作业区重18井区是典型的超稠油区块,工作难度大,人员少。近几年来不断打新井,生产规模不断扩大。抽油井生产方式是通过抽油机带动驴头做上下往复运动把地下原油抽汲到地面,采油树盘根盒是井口密封装置,光杆上下运动时盘根盒内的盘根起到密封作用。由于光杆不间断上下运动磨损盘根,盘根磨损严重时起不到密封作用,会发生井口溢油现象,造成井口污染事故、频繁的停井更换盘根降低了单井开井时率,也增加了生产成本、影响生产时率。因此解决抽油井盘根使用寿命问题是关键问题。
Fengcheng Oilfield operating area heavy 18 well is a typical super-heavy oil block, difficult to work, fewer staff. In recent years continue to play a new well, expanding production scale. Pumping production is driven by the pumping unit up and down the donkey head reciprocating motion to pump underground oil to the ground, the tree packing box is a wellhead sealing device, polished rod packing box packing up and down play a sealing effect. As the light rod uninterrupted up and down movement wear packing, packing serious failure to play the role of sealing, oil wellhead will occur phenomenon, resulting in wellhead pollution accidents, frequent stop well replacement packing to reduce the single-well open rate, also Increased production costs, affecting the production rate. Therefore, solving the problem of packing lifter life is the key issue.