Journal of Southwest Petroleum University(Science & Technology Edition) ›› 2023, Vol. 45 ›› Issue (3): 163-170.DOI: 10.11885/j.issn.1674-5086.2020.11.14.01

• PETROLEUM MACHINERY AND OILFIELD CHEMISTRY • Previous Articles     Next Articles

Design of Combination Lifting Technology of Rod Pump and Ground Driving Screw Pump

YANG Zhi1, KANG Lu1, ZHANG Xinghua2, CHEN Yong1, YI Zhaolong3   

  1. 1. Petroleum Engineering School, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. China France Bohai Geoservices Co. Ltd., Binhai New Area, Tianjin 300450, China;
    3. Petroleum Engineering Technology Research Institute, Shengli Oilfield Institute, SINOPEC, Dongying, Shandong 257000, China
  • Received:2020-11-14 Online:2023-06-10 Published:2023-07-07

Abstract: Along with the development of deep oil and gas fields such as Tarim, satisfying the technology of deep and large pumping in deep well has gradually become a reality. The pump setting depth is deepening, the single way of lifting tend to show some limitations and inefficiency, so we propose a combination of lifting technique of sucker rod pump and ground driving screw pump: the screw pump and plunger pump being installed on the same production string, and the relaying way of extracting oil carried out. In order to demonstrate the feasibility of the lifting technique of rod pump and ground drive screw pump, we analyze the working principle, flow matching and force condition of the rod pump and ground drive screw pump, and establish the suspension load calculation model of the combined lifting process of the rod pump and the ground driving screw pump in the deep pumping conditions of the well. Compared with sucker rod pump, the swabbing parameters in the same production case of combination lifting system of sucker rod pump and ground driving screw pump will increase the depth of pump and the range of displacement, and reduce the energy consumption by reducing the polished rod load of the pumping unit.

Key words: the lifting technique of combination, sucker-rod pump, ground driving screw pump, feasibility analysis, comparative analysis

CLC Number: