本井气柱塞气举排水采气动态模型的求解及应用-数码设计.PDF

第6 卷 第3 期 数 码 设 计 Vol.6 No.3 2017 年 PEAK DATA SCIENC 2017 DOI ：10.19551/ki.issn1672-9129.2017.03.016 本井气柱塞气举排水采气动态模型的求解及应用 1* 2 3 1 (1. 中国石油大学（北京）石油工程学院，北京昌平102249；2. 中国石油大学（北京）地球科学学院，北京昌平102249；3.大庆油田有限责任 公司第二采油厂，黑龙江大庆163414） 1 2 3 1 GE Keke *, HAN Qiuya , WU Yonghong , TAN Chaodong (1.College of Petroleum Engineering, China University of Petroleum, Beijing Changping 102249, China; 2. institute of earth science, China University of Petroleum, Beijing Changping 102249, China; 3. Daqing oilfield co., Ltd. The second production plant, Heilongjiang Daqing 163414, China) Abstract In this paper, according to the dynamic analysis of the lifting process of the gas drainage process in the gas column, Based on the conservation of mass and the law of conservation of momentum, the second - order ordinary differential equation of the variable coefficient of plunger and liquid slug under the influence of multiple factors is established. The dynamic equation of the plunger gas lift is solved by the combination of the Miline-Hamming method and the Runge-Kutta method, which is modified by local truncation error, which can predict the changing rules and the dynamic characteristics of each key parameter in the process of lifting and provides a theoretical basis for the optimal design and fault diagnosis of the gas column. Through the preparation of the computer application program, the calculating example is used to verify the model and the variation