PCM螺杆泵采油配套技术在鸭儿峡油田的应用

Application of systematic PCM screw pump technology to Yaerxia Oilfield

马建军 李建立 侯智广 景士宏 李富荣 杨世豪

MA Jian-jun LI Jian-li HOU Zhi-guang JING Shi-hong LI Fu-rong YANG Shi-hao

玉门油田公司鸭儿峡油田作业区, 甘肃玉门 735200

The Operation Region of Yaerxia Oilfield, Yumen Oilfield Company, Yumen 735200, Gansu, China

鸭儿峡油田地层供液不足,平均动液面1896 m,部分油井由于原油脱气、乳化及结蜡等原因造成原油黏度增大,导致常规抽油泵无法正常生产。为解决该问题,引进法国PCM螺杆泵采油配套技术,该泵最大排量1000 m3/d,最大扬程可达3000 m。介绍了PCM螺杆泵的构成、工作原理、主要技术参数及选井条件,分析了其技术特点。现场选用了扬程为2000 m和2600 m的2种螺杆泵,在4口井上进行了应用,最大泵深2109 m,成功解决了油井的疑难开采问题,为深井开采提供了一条新的有效途径。如何将PCM螺杆泵应用到更深油井及进一步延长油井免修期将是下一步的工作重点。

The strata of Yaerxia Oilfield supplies insufficient fluid and its dynamic fluid level is 1896m on average.The viscosity of crude oil increases in some oil wells due to degasification,emulsification,and paraffinning,which influences the normal production of conventional sucker rod pumps.To solve this problem,the systematic production technology using French PCM screw pumps is introduced,of which the maximum displacement is 1000 m3/d and the maximum delivery head can reach 3000 m.This paper introduces the composition,operation principle,main technical indexes,and well selection conditions,analyzing the characteristics of the technology.Two types of screw pumps with their delivery head being 2000 m and 2600 m respectively are selected and applied to four wells.The maximum pumping depth is 2109 m.Therefore,the difficulties in oil well production are overcome,which provides a new effective solution to deep well production.The emphasis for future work is how to apply PCM screw pump to deeper wells and to prolong the maintenance-free period of oil wells.

10.3969/j.issn.1000-7393.2007.04.012