Abstract: Oil reservoirs at Mahu or other blocks of Xinjiang oilfield are featured with deep burial about 4000m, low permeability with average at 0. 35mD. Normally flowing production after frac is often adopted. The well production is high initially, and decreases rather fast afterwards. At present, beam pumping is used during pumping production at developed blocks, the average pump depth 2500m, with low system efficiency and low pump efficiency. Moreover, due to the rapid decrease in formation energy, intermittent pumping is observed prominent due to unbalanced supply and recovery. For these beam pumping problems and the reservoir needs, for the first time in China study is made on ESP no-rod deep pumping technology. Field test has been done in 3 wells, meeting the technical requirements of low-permeability low rate deep wells at Xinjiang oilfield, and providing reference for similar oil wells. It has expanded the study thinking of rodless deep well lifting. 

摘要： 新疆油田玛湖等区块油藏中深在4 000ｍ左右，平均渗透率0.35 ｍＤ，呈现埋藏深、渗透率低等特点，普遍采用压裂后自喷的方式投产，初期单井产量高，但递减较快。目前，已开发区块转机抽后采用游梁式有杆泵生产，平均泵挂深度2 500 ｍ，系统效率和泵效较低；同时，由于地层能量下降快，供采不平衡导致的间抽问题突出。针对有杆泵深抽的技术问题以及此类油藏的需求，国内首次开展了电潜柱塞泵无杆深抽技术研究，现场试验 ３口井，满足了目前新疆油田低渗小排量深井的技术要求，为同类型油井开采提供了技术借鉴，拓展了无杆泵深井举升技术的研究思路。

关键词: 深井举升, 电潜柱塞泵, 计算模型, 直线电机