浅层定向井螺杆泵举升工艺研究  

Research on progressing cavity pump lifting technique for shallow directional well

作　　者：李兴科[1] 王锋[2] 于国栋[2] 

机构地区：[1]中国石油吉林油田公司采油工艺研究院,吉林松原138003 [2]中国石油吉林油田公司,吉林松原138003

出　　处：《石油学报》2005年第3期118-122,共5页Acta Petrolei Sinica

基　　金：中国石油天然气股份公司科技项目"扶余油田综合调整配套工艺技术研究"(No.030117)部分成果。

摘　　要：螺杆泵举升技术近年来已日趋成熟,并在国内外油田开发中得到较大规模的推广应用。但目前的举升工艺应用仍集中在直井及直斜井,对于定向井,特别是浅层定向井的设计理论及现场应用仍处于摸索试验中。针对吉林油田部分地区所面临的浅层定向井螺杆泵有效举升的实际需求,探讨了浅层定向井螺杆泵举升过程中杆管的防磨设计问题,对杆管偏磨产生的机理、磨损程度的影响因素进行了分析,提出了改善杆管间受力及降低偏磨程度的基本技术对策,采取以优化扶正器设计及应用玻璃衬里油管为主的防磨措施。现场应用表明,浅层定向井的螺杆泵举升工艺是可行的。The progressing cavity pump (PCP) lifting technique has been widely applied to oilfield development all over the world in recent years. But it is only applied to the straight wells and straight-deflecting wells. The design theory or field application of this technique is in fumble stage for directional well, especially for shallow directional well. In order to meet the field requirement of PCP lifting technique in the shallow directional well in Jilin Oilfield, the problem of abrasion prevention for lifting device was discussed. The rod-pipe uneven abrasion mechanism and influence factors for abrasion degree were analyzed. The basic countermeasures for reducing rod-pipe pressure and uneven abrasion degree were put forward. It is suggested that the major measures should include optimizing the design of centralizer and applying glass-liner tube. The field application of improved technique showed that the PCP lifting technique is effective in shallow directional wells.

关 键 词：吉林油田 浅层定向井 螺杆泵 举升工艺 优化设计 

分 类 号：TE833.9[石油与天然气工程—油气储运工程]