小套管井无油管采油技术的研究与应用  

Research and application of tubeless oil production technology for small cased wells

作　　者：董元军[1] 郑振兴[1] 孟凡晶[1] 古光明[2] 孙渊平[1] 

机构地区：[1]中国石化胜利油田分公司临盘采油厂,山东临邑251500 [2]中国石化胜利油田分公司采油工艺研究院,山东东营257000

出　　处：《石油钻采工艺》2015年第2期111-113,共3页Oil Drilling & Production Technology

摘　　要：近年来,内径小于?101.6 mm的小套管井在临盘采油厂渐成规模,已成为原油生产的重要组成部分。但由于套管内径限制,该类油井泵径小、杆管间隙小,导致提液困难和杆管偏磨。本研究提出了小套管井无油管举升的技术理念,配套完成了小套管井无油管杆式泵锚定技术、空心杆注塑防偏磨技术、无油管采油井口出油系统及举升工具的设计与室内试验,形成了一套完整的小套管井无油管举升实用技术。现场试验表明,该技术满足了小套管井现场提液、防偏磨的需要,有效降低了生产成本,是一种技术可靠、使用简单、成本低廉的技术手段,对油田小套管井的高效开发具有重要意义。In recent years, the small cased wells with inner diameter less than Ф101.6 mm have become more popular in LinpanOil Production Plant and have become an important part of crude oil production. But due to restriction by inner diameter of casing, thepump diameter is small and the clearance between pipe and the rod is small, which cause difficulties in liquid extraction and eccentricwear of rod-pipe. A technical concept of tubeless lift in small cased wells is presented, with completion of tubeless rod pump anchoringtechnology, anti-eccentric technique for hollow rod by injection molding, tubeless wellhead oil production system with lifting tools.Thus, a set of complete practical tubing-free lift technique for small cased wells is formed. The site tests show that this technique satisfiesthe requirements of liquid extraction and anti-eccentric wear in small cased wells, effectively reduces the production costs and is atechnically reliable. It is easy to use and its cost is low, which has great significance to the efficient development of small cased wells.

关 键 词：小套管井 无油管采油 空心杆 防偏磨 

分 类 号：TE355.9[石油与天然气工程—油气田开发工程]